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Ubuntu 18.04 is sooo beautiful 😊 I can't connect to WiFi or ping 8.8.8.8 but it's soooo beautiful 😊7
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How can I use a custom DNS server on my schools network?
They seem to block any DNS that isn't their own. I've tried 8.8.8.8 and the new cloudflare one. Both blocked, it's a real issue because their default dns dies for about a minute every 12/24 hrs causing my VPN to go down.
How do they even block external DNS servers?5 -
I have a Server with the IP address
x.x.233.61
For clarification, this is the public IP, it does not start with 192 or 172 or whatever local IP.
When I pinged 8.8.8.8 it said
From x.x.1.1: Destination Net Unreachable
After asking my Hoster what this IP address was, he said it would be the router.
In a traceroute to 8.8.8.8 this IP never appears.
Since these ping problems are now fixed, this IP never appears anywhere. If it really is the Server racks router, is there any way to get that IP in Linux?4 -
One of my favorite parts of my job is that I’m not allowed to resolve firewall issues myself. IT ops frequently breaks my firewall config, preventing me from resolving any domain names or running dns queries in general even though I still have connectivity. So I call the support number. Remote Desktop icon appears in the corner of my screen.
“Hi I have connectivity but can’t resolve any domain names”
“Have you tried using your browser, maybe they just block pings”
“Well no because I can ping 8.8.8.8, see?”
“Hmm well have you tried from your browser?”
“Yes.”
“Maybe it’s just an issue with ping traffic”
“Well no because I’m not having issues with icmp traffic. I can still ping 8.8.8.8, see?”
“Hmm that’s weird”
*opens network config, renews dhcp lease*
“But I don’t think that’s relat...”
“I know!”
*opens my command prompt, flushes dns cache*
“But if this were a cache issue the requests wouldn’t take so long to tim...”
“I know.”
(Starting to think he doesn’t know)
“I’ll pass this on to the networking guys”
“Thanks”
Third time this has happened. Every time they claim they didn’t change anything and it fixed itself. Obviously this is not the case, because after networking guys “don’t change anything” it starts working again. Every time they talk to me like I have the technical prowess of an HR rep. Like somehow I’m the only software engineer in the world that doesn’t know what the ping command does.
I’m not upset though. They’re just giving me a great excuse to be completely unproductive on a Monday
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