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Search - "mac address"
Sit down before you read this.
So I interviewed a guy for a "Support Engineer" internship position.
Me and the team lead sit down and are waiting for him to enter, but apparently he's actually making a coffee in the kitchen.
This isn't exactly a strike since the receptionist told him that he can go get a drink, and we did too. It's just always expected for him to get a glass of water, not waste 3 minutes brewing a coffee.
In any case he comes in, puts the coffee on the table, then his phone, then his wallet, then his keys and then sits on our side of the table.
I ask him to sit in front of us so we can see him. He takes a minute to pack and tranfer himself to the other side of the table. He again places all of the objects on the table.
We begin, team lead tells him about the company. Then I ask him whether he got any questions regarding the job, the team or the company . For the next 15 minutes he bombards us with mostly irrelevant and sometimes inappropriate questions, like:
0: Can I choose my own nickname when getting an email address?
1: Does the entire department get same salaries?
2: Are there yoga classes on Sundays only or every morning?
3: Will I get a car?
4: Does the firm support workspace equality? How many chicks are in the team?
5: I want the newest grey Mac.
And then.. Then the questions turn into demands:
6: I need a high salary (asks for 2.5 more than the job pays. Which is still a lot).
I ask him why would he get that at his first job in the industry (remind you, this is an internship and we are a relatively high paying company).
He says he's getting paid more at his current job.
His CV lists no current job and only indicates that he just finished studying.
He says that he's working at his parent's business...
Next he says that he is very talented and has to be promoted very quickly and that we need to teach him a lot and finance his courses.
At this point me and the team lead were barely holding our laughs.
The team lead asks him about his English (English is not our native language).
He replies "It's good, trust me".
Team lead invites him for an English conversation. Team lead acts like a customer with a broken internet and the guy is there to troubleshoot. (btw that's not job related, just a simple scenario)
TL: "Hello, my name is Andrew, I'm calli..."
Guy: *interrupts* "Yes, yes, hi! Hi! What do you want?"
TL: "Well, if you let me fi..."
Guy: "Ok! Talk!"
TL: "...inish... My internet is not working."
Guy: "Ok, *mimics tuning a V engine or cooking a soup* I fixed! *points at TL* now you say 'yes you fixed'".
Important to note that his English was horrible. Disregarding the accent he just genuinely does not know the language well.
Then he continiues with "See? Good English. Told you no need to check!".
After about half a minute of choking on out silent laughter I ask him how much Python experience he has (job lists a requirement of at least 1 year).
He replies "I'm very good at object oriented functional programming".
I ask again "But what is your experience? Did you ever take any courses? Do you have a git repository to show? Any side.."
*he interrupts again* "I only use Matlab!".
Team lead stands up and proceeds to shake his hand while saying "we will get back to you".
At last the guy says with a stupid smile on his face "You better hire me! Call me back tomorrow." Leaves TL hanging and walks away after packing his stuff into the pockets.
I was so shocked that I wasn't even angry.
We both laughed for the rest of the day though. It was probably the weirdest interview I took part at.40
Me: so, ifconfig, what is my gateway?
ifconfig: [ip address]
Me: nmap, what is this IP address?
nmap: it's a network switch with an open telnet port.
Me: what happens if I connect to it?
switch: WHAT IS THE PASSWORD?!?!
Me: is it blank?
switch: correct. what do you want to do?
Me: can I look at all the IP and MAC addresses on the network?
switch: WHAT IS THE ADMIN PASSWORD?!?!
Me: is it... admin?
switch: correct. Here's everyone that's connected to the network: [400+ IPs and MACs]
Me: ok python, would you filter through these and tell me what manufacturer each one belongs to?
[~50 manufacturer lookups later]
python: there's a bunch of apple product, a bunch of miscellaneous laptop and printer manufacturers, and some raspberry pis.
Me: raspberry pis?
python: yep. about 20 of them.
Me: What happens if I connect to one?
rpi: WHAT IS THE PASSWORD?!?!
rpi: correct. what do you want to do?
Me: can I make you do my bidding in the background when you aren't being used?
rpi: sure, sounds fine.
I love ignorant sysadmins.9
"The school tech asked me for my MAC address on my phone, but I told them I didn't have one because my phone is Android and Macs only have MAC addresses, right?"
Someday my toaster is going to have an IP address. A bad automatic firmware update will most likely cause it to get stuck on the bagel setting until I plug a usb key in and reflash the memory.
Grandma's refrigerator will probably get viruses, lock itself and freeze all the food inside, demanding bitcoin before defrosting.
My blender will probably be used in a massive DDoS attack because Ninja's master MAC address list got leaked and the hidden control panel login is admin/admin.
Ovens will burn houses down when people call in to have them preheat on their way home from work.
Correlations between the number of times the lights are turned on and how many times the toilet is flushed will yield recommendations to run the dishwasher on Thursdays because it's simply more energy efficient.
My dog will tweet when he's hungry and my smart watch will recommend diet dog food in real-time because he's really been eating too much lately--"Do you want to setup a recurring order on Amazon fresh?"
Sometimes living in a cave sounds nice...12
Navy story continued.
And continuing from the arp poisoning and boredom, I started scanning the network...
So I found plenty of WinXP computers, even some Win2k servers (I shit you not, the year was 201X) I decided to play around with merasploit a bit. I mean, this had to be a secure net, right?
Like hell it was.
Among the select douchebags I arp poisoned was a senior officer that had a VERY high idea for himself, and also believed he was tech-savvy. Now that, is a combination that is the red cloth for assholes like me. But I had to be more careful, as news of the network outage leaked, and rumours of "that guy" went amok, but because the whole sysadmin thing was on the shoulders of one guy, none could track it to me in explicit way. Not that i cared, actually, when I am pissed I act with all the subtleness of an atom bomb on steroids.
So, after some scanning and arp poisoning (changing the source MAC address this time) I said...
"Let's try this common exploit, it supposedly shouldn't work, there have been notifications about it, I've read them." Oh boy, was I in for a treat. 12 meterpreter sessions. FUCKING 12. The academy's online printer had no authentication, so I took the liberty of printing a few pages of ASCII jolly rogers (cute stuff, I know, but I was still in ITSec puberty) and decided to fuck around with the other PCs. One thing I found out is that some professors' PCs had the extreme password of 1234. Serious security, that was. Had I known earlier, I could have skipped a TON of pointless memorising...
Anyway, I was running amok the entire network, the sysad never had a chance on that, and he seemed preoccupied with EVERYTHING ELSE besides monitoring the net, like fixing (replacing) the keyboard for the commander's secretary, so...
BTW, most PCs had antivirus, but SO out of date that I didn't even need to encode the payload or do any other trick. An LDAP server was open, and the hashed admin password was the name of his wife. Go figure.
I looked at a WinXP laptop with a weird name, and fired my trusty ms08_067 on it. Passowrd: "aaw". I seriously thought that Ophcrack was broken, but I confirmed it. WTF? I started looking into the files... nothing too suspicious... wait a min, this guy is supposed to work, why his browser is showing porn?
Looking at the ""Deleted"" files (hah!) I fount a TON of documents with "SECRET" in them. Curious...
Decided to download everything, like the asshole I am, and restart his PC, AND to leave him with another desktop wallpaper and a text message. Thinking that he took the hint, I told the sysadmin about the vulnerable PCs and went to class...
In the middle of the class (I think it was anti-air warfare or anti-submarine warfare) the sysad burst through the door shouting "Stop it, that's the second-in-command's PC!".
Stunned silence. Even the professor (who was an officer). God, that was awkward. So, to make things MORE awkward (like the asshole I am) I burned every document to a DVD and the next day I took the sysad and went to the second-in-command of the academy.
Surprisingly he took the whole thing in quite the easygoing fashion. I half-expected court martial or at least a good yelling, but no. Anyway, after our conversation I cornered the sysad and barraged him with some tons of security holes, needed upgrades and settings etc. I still don't know if he managed to patch everything (I left him a detailed report) because, as I've written before, budget constraints in the military are the stuff of nightmares. Still, after that, oddly, most people wouldn't even talk to me.
God, that was a nice period of my life, not having to pretend to be interested about sports and TV shows. It would be almost like a story from highschool (if our highschool had such things as a network back then - yes, I am old).
Today my roomate told me about his classmate who asked a really nice question " why do we need a MAC address in a WINDOWS machine". They are in a masters course for network security.9
One comment from @Fast-Nop made me remember something I had promised myself not to. Specifically the USB thing.
So there I was, Lieutenant Jr at a warship (not the one my previous rants refer to), my main duties as navigation officer, and secondary (and unofficial) tech support and all-around "computer guy".
Those of you who don't know what horrors this demonic brand pertains to, I envy you. But I digress. In the ship, we had Ethernet cabling and switches, but no DHCP, no server, not a thing. My proposition was shot down by the CO within 2 minutes. Yet, we had a curious "network". As my fellow... colleagues had invented, we had something akin to token ring, but instead of tokens, we had low-rank personnel running around with USB sticks, and as for "rings", well, anyone could snatch up a USB-carrier and load his data and instructions to the "token". What on earth could go wrong with that system?
We got 1 USB infected with a malware from a nearby ship - I still don't know how. Said malware did the following observable actions(yes, I did some malware analysis - As I said before, I am not paid enough):
- Move the contents on any writeable media to a folder with empty (or space) name on that medium. Windows didn't show that folder, so it became "invisible" - linux/mac showed it just fine
- It created a shortcut on the root folder of said medium, right to the malware. Executing the shortcut executed the malware and opened a new window with the "hidden" folder.
Childishly simple, right? If only you knew. If only you knew the horrors, the loss of faith in humanity (which is really bad when you have access to munitions, explosives and heavy weaponry).
People executed the malware ON PURPOSE. Some actually DISABLED their AV to "access their files". I ran amok for an entire WEEK to try to keep this contained. But... I underestimated the USB-token-ring-whatever protocol's speed and the strength of a user's stupidity. PCs that I cleaned got infected AGAIN within HOURS.
I had to address the CO to order total shutdown, USB and PC turnover to me. I spent the most fun weekend cleaning 20-30 PCs and 9 USBs. What fun!
What fun, morons. Now I'll have nightmares of those days again.9
I'm getting ridiculously pissed off at Intel's Management Engine (etc.), yet again. I'm learning new terrifying things it does, and about more exploits. Anything this nefarious and overreaching and untouchable is evil by its very nature.
(tl;dr at the bottom.)
I also learned that -- as I suspected -- AMD has their own version of the bloody thing. Apparently theirs is a bit less scary than Intel's since you can ostensibly disable it, but i don't believe that because spy agencies exist and people are power-hungry and corrupt as hell when they get it.
For those who don't know what the IME is, it's hardware godmode. It's a black box running obfuscated code on a coprocessor that's built into Intel cpus (all Intell cpus from 2008 on). It runs code continuously, even when the system is in S3 mode or powered off. As long as the psu is supplying current, it's running. It has its own mac and IP address, transmits out-of-band (so the OS can't see its traffic), some chips can even communicate via 3g, and it can accept remote commands, too. It has complete and unfettered access to everything, completely invisible to the OS. It can turn your computer on or off, use all hardware, access and change all data in ram and storage, etc. And all of this is completely transparent: when the IME interrupts, the cpu stores its state, pauses, runs the SMM (system management mode) code, restores the state, and resumes normal operation. Its memory always returns 0xff when read by the os, and all writes fail. So everything about it is completely hidden from the OS, though the OS can trigger the IME/SMM to run various functions through interrupts, too. But this system is also required for the CPU to even function, so killing it bricks your CPU. Which, ofc, you can do via exploits. Or install ring-2 keyloggers. or do fucking anything else you want to.
tl;dr IME is a hardware godmode, and if someone compromises this (and there have been many exploits), their code runs at ring-2 permissions (above kernel (0), above hypervisor (-1)). They can do anything and everything on/to your system, completely invisibly, and can even install persistent malware that lives inside your bloody cpu. And guess who has keys for this? Go on, guess. you're probably right. Are they completely trustworthy? No? You're probably right again.
There is absolutely no reason for this sort of thing to exist, and its existence can only makes things worse. It enables spying of literally all kinds, it enables cpu-resident malware, bricking your physical cpu, reading/modifying anything anywhere, taking control of your hardware, etc. Literal godmode. and some of it cannot be patched, meaning more than a few exploits require replacing your cpu to protect against.
And why does this exist?
Ostensibly to allow sysadmins to remote-manage fleets of computers, which it does. But it allows fucking everything else, too. and keys to it exist. and people are absolutely not trustworthy. especially those in power -- who are most likely to have access to said keys.
The only reason this exists is because fucking power-hungry doucherockets exist.30
Random MAC address generation should be a feature on all wireless devices. Stuck at the airport due to cancellation, and the WiFi is restricted to 1 hour per MAC 🙄14
Not really dev as much but still IT related 😂
in college we got some new macs in our class. Before we were allowed to use them the "IT Tech" came in and did something to them all (probably ran some scripts to set stuff up)
Anyway, I was completely new to OS X and accidentally pressed a key combo that opened up a dialogue to connect to a remote file server. I saw the address field was already filled out (from when the IT Tech was running the scripts). So me being me I decided to connect. Low and behold my student credentials got me in.
Taking a look around I found scripts, backups and all sorts of stuff. I decided to look at some of the scripts to see what they did. One of them was a script to add the Mac to the domain. Here's the funny part. The login to do that was hard coded into the script....
To conclude. I now have domain level access to my whole college network 🙃
Tl;Dr: stupid it tech saves password in script. I find it. I now have domain level access to the college network16
I wonder how would devRant send the mail with my MAC address? The hard way by tracking down my system having having the MAC address and deliver it to me?? 😂😂
DevRant is being unaware that we all are devs here 😂13
So my ethernet randomly stopped working on Arch.
At first I thought it had to do with a conflict between it and my tethered phone, so I tried removing all my connections. Still wasn't working.
Next I tried to test the driver itself and make sure it loaded on boot. It loaded, but was disconnected.
Next I decided "fuck it, I know I was just using the internet on Windows, but I'll check the ethernet cable is still plugged in anyway". It was, and it was returning the right MAC address, but still no connection.
So I try debugging the driver further. Everything seemed fine, except it would time out trying to establish a dhcp connection.
Finally I figured, maybe Microsoft tried to troll me and lock out the ethernet waking on boot. So I restart my computer, load into windows and check my ethernet driver, it seems fine. I go to disable the shutdown of the card on OS shutdown. Turns out this driver no longer has that capability.
Wait a minute!? Windows is also having connection issues!?
I look to my left.
Fuck my life...
My router was off... I must of kicked the powerboard under my desk..........2
*Opens a pack of tablets (8000) and start to prep them.*
WHAT THE ACTUAL FUCK.
SAME MAC ADDRESS.
Okay, that's just an er-
NOPE, ANOTHER ONE. HOLY SHIT. OKAY IT'S GETTING WORSE.
Is it my db?
The db is just fine.
*Painfully getting in contact with the reseller*
Me: grumbles grumbles Mac Address grumbles
Reseller: Uh.. What?
It would be okay if we weren't using Mac Addresses as primary key in our databases.
They gave us some weird-looking software to "re-write mac addresses". It's working.
Something tells me that ipv6 is not for tomorrow.7
At the end of a function for getting the machine's MAC address:
If you don't get this, you're too young.4
Attempting to access my colleague's NFS directory on his VM, don't know the VM's IP address, hostname or password:
- 2 minutes with nmap to narrow the possible IPs down to ~30
- Ping each and look for the one with a Dell MAC prefix as the rest of us have been upgraded to Lenovo. Find 2 of these, one for the host and one for the virtual machine.
- Try to SSH to each, the one accepting a connection is the Linux VM
- Attempt login as root with the default password, no dice. Decide it's a lost cause.
- Go to get a cup of tea, walk past his desk.
- PostIt note with his root password 😶
FYI this was all allowed by my manager as he had unpushed critical changes that we needed for the release that day.6
Dad: God I hate Windows!
Me: Why? You know you can just run the getmac command in CMD, right?
Dad: What? There is a command for that?
Needless to say, my dad is not a network engineer...1
OS : Tail OS ✓
pass : 16+ ✓
Update password : every 15 days ✓
Mac address : spoofing ✓
Then you realise
Your Aadhar information is in gov DB.14
Not hacking per se, but I noticed an email floating between ISP and director about radius server login details, promptly saved for future reference.
One day noticed someone downloading mucho dataro... Pissed me off, interrupting my video stream.
Logged into radius server, blocked MAC address.1
And the best question that a person asked me today is - Why my Windows PC have a Mac address? -... Ok now is really time to go home.1
Whoever it was that thought that MAC address spoofing/randomization for "muh network security" was a good idea, I'm gonna violently fucking murder them. It doesn't solve jack shit for security, doesn't magically make your network device "anonymous" or whatever and it never fails to confuse my DHCP servers that use those fucking things. Whoever it was, hang yourself or I'll fucking do it for you. Filthy incompetent motherfucker!!15
Last night I was gaming online, thought I'd turn on MAC filter on my router. Mistyped my own MAC Address 😥7
A bit different than wk93, but still connected and a fun story.
Back in high school when it began to digitalize everything, so began our teachers journey with technology. We, as IT class were into these things, but as far as I can say, others in the school including both teachers and students were like cave mans when it came to IT.
Most of them kept the different wifi networks password on the windows desktop, in a file 'wifipassword.txt'. When we were on robotics seminar, we had to use a teacher's laptop. The wifi network was incredibly fast and powerful,, yet so poorly configured that even the configuration page user/pass was the default admin/admin, because the IT admin wasn't the most skilled one.
We got the idea to sell the password of the wifi network to other students. Not much, for about 1 dollar a week. The customer came to us, we took the phone, took note of the MAC address, entered the password, and if the guy were to stop paying every week, we just blacklisted that MAC on the next robotics course.
Went well for months, until a new sysadmin came and immediately found it out, we were almost fired from the school, but my principal realized how awesome this idea was. You may say that we were assholes, and partially that is true, I'd rather say we made use of our knowledge.2
Network Security at it's best at my school.
So firstly our school has only one wifi AP in the whole building and you can only access Internet from there or their PCs which have just like the AP restricted internet with mc afee Webgateway even though they didn't even restrict shuting down computers remotely with shutdown -i.
The next stupid thing is cmd is disabled but powershell isn't and you can execute cmd commands with batch files.
But back to internet access: the proxy with Mcafee is permanently added in these PCs and you don't havs admin rights to change them.
Although this can be bypassed by basically everone because everyone knows one or two teacher accounts, its still restricted right.
So I thought I could try to get around. My first first few tries failed until I found out that they apparently have a mac adress wthitelist for their lan.
Then I just copied a mac adress of one of their ARM terminals pc and set up a raspberry pi with a mac change at startup.
Finally I got an Ip with normal DHCP and internet but port 80 was blocked in contrast to others like 443. So I set up an tcp openvpn server on port 443 elsewhere on a server to mimic ssl traffic.
Then I set up my raspberry pi to change mac, connect to this vpn at startup and provide a wifi ap with an own ip address range and internet over vpn.
As a little extra feature I also added a script for it to act as Spotify connect speaker.
So basically I now have a raspberry pi which I can plugin into power and Ethernet and an aux cable of the always-on-speakers in every room.
My own portable 10mbit/s unrestricted AP with spotify connect speaker.
Last but not least I learnt very many things about networks, vpns and so on while exploiting my schools security as a 16 year old.8
Best thing about doing Wifi setup/network maintenance for the local coffee shop for free? Putting my laptop's MAC address into the QOS table and guaranteeing myself bandwidth.5
A technician to me: You need to check the ssh server of this machine, I can't manage to login with the MAC address...
Using a mac from time to time:
1) Open browser
2) Open Gmail website
3) Insert email address
4) Press CMD+Q to write @
I was wondering how a sysadmin would know if the user sending malicious traffic is the real attacker or his account has been hacked ?
(Also probable that the attacker has faked his mac address to user's device)9
Context: I (among other things) manage some servers for my students' club so I have first-hand information about anything network or server-related that happens. We basically run a big enterprise network and we allow devices to connect if a person has paid their membership and the device's MAC address (be it wireless or ethernet) is recognized by our switches/aruba controllers.
Story: So today a first complaint about "the wifi not working" came in because of Android 10 and its MAC randomization. We deal with MAC randomization on Windows laptops and PCs but I think it is disabled by default so we almost never get this type of complaint.
It took one of the other guys probably 5 minutes to figure out how to disable it... only to discover it is a per-network setting.
The actual question: If there are any network administrators here on devRant - how do you deal with this MAC filtering vs MAC randomization issue?8
My flatmate owes me ~40$ in XVG (2k in average) and he wants to wait that it increases in value to refund me 40$ instead of 2k XVG. So, I was thinking of an evil script that pops a popup every five minutes on his screen with my wallet address and the amount , or blocking internet connection from his laptop via a Mac filter, except bittrex website (where he has funds). What do you suggest?25
I have found some subdomains of a specific domain.
I know the subdomains are up but when i try to load them , firefox says "unable to connect".
What might have caused this?
A static ip or mac address?5
Years ago I was working in local cinema as a student job from time to time and used to sleep after shifts at my uncle's. Uncle did not had internet but there were so many wlans all around. Since I had nothing to do for hours after shift, I downloaded Backtrack linux at home, made live dvd of it and saved a two articles of "how to hack wifi" to text files.
It took me 4 hours to break WEP, since I was total lame, and it was the only one WEP around. They also had mac restrictions set to router, so I changed my mac address to one of their devices, logged in to router and added our mac address. For my uncle it was complete magic but since he is total geek to linux he liked it.
Fast forward weeks later. When I came to my uncle's house he was downloading like ton of linux distributions. Literally each one. Gigabytes of data. I told him not to do so because sooner or later neighbour will notice, but he did not care. Guess what, he notices, probably slow internet and (maybe) bigger bills, I do not know, but owner just changed protocol to WPA2, not changing password. So the story continued for almost 2 years. Felt a bit sorry for neighbour but did not expect such an outcome. I just wanted to watch youtube videos and scroll social networks, keeping low profile so no one notice.1
Last week I wired up my home network (including custom modem and routers) myself, because the stuff my ISP wanted me to use was garbage.
Luckily Germany has "router-freedom" so ISPs are not allowed to force us to use their device to dial into the network.
I did everything myself, because the 'technicians' they kept sending me were just idiots who didn't know anything, considering the highly paid job they are doing. Usually they told me, to get the device from my ISP, because my "Router" (actually a business grade, standalone Modem by Cisco, to feed my Router) didn't even have WiFi ( lol ). Also all Technicians didn't arrive at the agreed date but at some other time. I wasn't able to wait any longer.
So I did it myself.
Consider me something more like a student of theoretical computer science. Not actually supposed to be experienced with hardware stuff.
The ISP is serving me with a DOCSIS 3.0 Network based on the television cable network in my city. For some reason they are providing the internet-access to only one socket in the apartment, which has a rather uncommon "WICLIC" connector. After having trouble getting an adapter for WICLIC to common coaxial F-Connectors (used by every DOCSIS-Modem), I made one myself.
After setting up everything (not that hard, once the connectors fit) my modem told me, that, while I'm perfectly connected to the ISPs internal Network, I still can't access the internet.
So I called the ISP...
After getting ranted at, about that what I'm doing is illegal and only certified employees are allowed to do this and I will break more, than actually do good and that I can't just connect my own "Router" (again I needed to correct her: Modem) I hang up the phone.
Also she accused me of hacking their devices because I'm not supposed to see my IP address... (My Modem told me on its web interface. I didn't even need telnet for that.)
I went to the ISPs head office, told the first desk as many technical terms as I could remember and got forwarded to something like the main technician.
He was a really nice guy. The only sane and qualified person I dealt with at this company. He asked me for my Address and Device Model, I told him my MAC and last internal IP, I had seen and he activated my internet access within a minute.
We talked a while about the stupid connector that ISP is using in the homes and he gifted me some nicer adapters to connect my modem to the wall.
Why do ISPs hate their customers that much?2
You can connect to Docker containers directly via IP in Linux, but not on Mac/Windows (no implementation for the docker0 bridged network adapter).
You can map ports locally, but if you have the same service running, it needs different ports. Furthermore if you run your tests in a container on Jenkins, and you let it launch other containers, it has to connect via IP address because it can't get access to exposed host ports. Also you can't run concurrent tests if you expose host ports.
My boss wanted me to change the tests so it maps the host port and changes from connecting to the IP to localhost if a certain environment variable was present. That's a horrible idea. Tests should be tests and not run differently on different environments. There's no point in having tests otherwise!
Finally found a solution where someone made a container that routed traffic to docker containers via a set of tun adapters and openvpn. It's kinda sad Docker hasn't implemented this natively for Mac/Windows yet.4
Fucking shit cheap wifi router with fucking shitty UI, or it was probably my own stupidity,
Enduring the warm (fuckin hot) coastal climate, I ran back and forth in my house continuing my ordeal from last night, trying to figure what the fuck’s wrong with my wifi,
So far I’ve known that, the main access point doesn’t work with any device, but I can connect via cable, and hardwired extended router also works, so the problem must be with the main wifi AP,
I’ve given up earlier in the morning and tried calling the ISP, and the lady on the other side was about to instruct me on how to change the wifi password, I politely decline as I’ve already tried it many times, then she proceeds to register an issue ticket and I’m to wait for the technician to come,
I spent some time making lunch (a very nice spaghetti, and baked some almonds, gonna make some salted caramel after this), until I grew impatient, and back in front of my laptop again,
Then it hit me, rather than changing the password, I made the connection to be open, then I tried to connect, still no avail, so something else must be blocking it,
I spent some time figuring out what could be the problem, I tried to translate all the technical jargons in the router, until I found
Mode: (a dropdown selection)
- permit (this one is selected)
[input for mac address]
[Some table to list registered devices]
Then it hits me like a brick, I tried adding my iphone’s mac address into the input, registered it, and voila, suddenly I am able to connect,
After that I tried setting the mode to disabled, nothing changed, the list is still there, I can still add more devices, but poof, my laptop suddenly able to connect,
After some experiment, what I concluded is that,
Disabled means the access control option is disabled, no restrictions or permissions (as intended as the default settings probably)
Restrict means allow all devices to connect except the ones registered in the list
Permit means restrict all device connections except for the ones registered in the list
Fuck it, now the problem is solved, everything went back to normal, well, back to my lunch I guess2
Kind of dev related, during a Firefly one-shot roleplay:
GM: So you have a data chip in your pocket. Do you want to see what's on it?
Me (hesitant): ...Kinda. *wait* Okay, I put the chip into one of my computers.
GM: The data chip shows random gibberish--it's encrypted. Your engineer may know how to decrypt it.
Me: Okay. Hey, Engineer! *holds imaginary data chip out to her* Decrypt this!
Engineer: No. *pause*, *sighs* Fine. But we need to be careful.
GM: Yes, now time for technobabble...
Me: So once we decrypt this, it's probably going to look for the MAC address, so we need an air-gapped machine--a machine that's never been online before--and a TAILS LiveUSB. We'll decrypt the data chip and then destroy the computer.
Fighter: ....I actually understood that and it actually makes sense. Good job. *fist bump*1
I recently upgraded my computer to a ryzen 1700x and 16gb 3600mhz memory and an asus rog crosshair hero vi board(From an 8350)
My pc ran soo smooth, games even more so
The games ran great, but my personal performance went down.
I didn't understand why. Im probably just losing my edge.
I trained and tried. But still, it felt off.
Today I realized that with my new motherboard, I got a new mac address. And my friend is a bit of a neat freak with that stuff. He has a whole system for ip addresses.
So i told him, I wont have the correct ip address. Then he started laughing and asked my to browse to a certain site www.privateinternetaccess.com
There at the top it said: "you are protected by pia"
Devices without an ip address bound to their mac address, will automatically use the vpn according to his rules.
My ping improved by 10-15ms upon getting my normal ip address back and my game performance is back.3
How do you prevent your software being vulnerable to IP address spoofing? Authentication? Certificates? VPN? Nah, just check the MAC address field of every packet. Nobody ever spoofed a MAC address before, that's just impossible. I thought that in binary there were only ones and zeros, but I guess nobody told me about the special tamper-resistant ones and zeros that MAC address fields are made of.
Oh, once you've done that, don't forget to tell the marketing people to put it in a brochure as an "innovation" for everyone to see.
I should post more of the crap the idiots I work "with" (quotes, because I am only here in body not mind) say. Especially when it comes to network stuff.
So just a normal rant here. .. it was one of those moments you find in yourself in sometimes. You get so caught up in thinking you know everything that you can't implement occams razor into your everyday work routine anymore. You've worked with so many complex workarounds that when you are faced with a simple problem with a simple answer you can't see the blinking neon light shouting at you anymore , and you can't here the bells sound anymore. ..
My rant is about Me vs the infamous mikrotik router. Something I had to set up. Something I had to login to setup. Something I've done so many times before but this time , my inflated ego and overbearing sense of grandeur just could not figure out.
Class how do we login into a router? Well find your gateway and type that sucker into a browser and you will be on your way ... well that's the answer right there. But since I thought that my router was connected to three dummy switches that it would affect anything or the paranoia I had that my isp somehow disabled any connections to the router at all or that I and to open a new port to connect to it or use winbox to connect to it using only the mac address or ssh into it ..would work ...I didn't try using the tried and tested way of doing it.
I wanted it to be an adventure. I wanted it to be a problem to solve so I shoved the ordinary answer out of the way and used other methods to try and connect to it...
All I had to do was used Nmap to scan the gateway for open ports and realise to view it in the Browser on port 8080 instead and finish my journey ...
I was looking for a dragon to slay , a maze to conquer, glory at the end of my mission ... when all I felt was a sheer sense of idiocy.
Switched to LG G5 from iPhone 7 Plus.
Lg's screen has burn in and took me about 10 hours to completely fuck it up, restore it, flash crDroid(Lineage os based, the only custom rom working fine so far) and workaround the faulty wifi chip giving null mac address by faking it.
Still love my new(old) phone more than the iPhone.2
My college network is asking for MAC address of all the devices I want to use for internet access.
If i dont provide them then i can't use the their internet.
Please give some ideas so i can use the internet without giving them my MAC.17
Worked until now on my private mac and used pymssql and freetds to connect and work with a MSSQL DB and Python
Two days ago I switched to an Ubuntu Machine and I couldn't get it to work.
As it turns out Ubuntu was not able to solve the DNS Name into an IP Address.
FML - 2 days wasted2
How to force a docker container to take the MAC address of host machine? I know net=host and mac-address arguments can be used. But is there a way to get actual host MAC address even though mac-address argument is passed with some other value?
My usecase is node locked licensing using FlexLM which creates license on the basis of MAC address of node.5
I've spent probably 2-3 hours working on this MAC Address lookup script.
Only 100 lines and I think it's decently documented.
Of course, I made a really quick version in Batch within 5 minutes that works decently well, but I'm more proud of this version...
Hey all, I'm curious for your opinion on this one. I've got some smart home devices (e.g. Hue lights, Nest Protect) and lately I started to think of the best way to protect them. Now I did see this project on Kickstarter (https://kickstarter.com/projects/...) and it seems to be a nice and easy way. But still, you don't know what they'll do with your data.
Would MAC address filtering in my router / modem not suffice for protection?
Let me know what you think :)5
I've never used Python much, but my network class had an assignment to make a program that would convert a physical MAC address to an EUI-64 address (as well as some other, easier functions). It's not the most elegant solution, I'm sure, but I'm proud of what I created.
(Reposted due to needing to rehost image)1