Internet Completely Gone

baigsabeeh · Posted: Fri Dec 29, 2006 10:50 pm Post subject: Internet Completely Gone

I recently upgraded to DHCPCD 3.0.8-r1 and now my internet is gone.

I've tried ifconfig to check my interfaces and they are all configured fine. I've checked using ping to google and it always gives me unknown host. I also checked the firewire ehternet module to make sure it wasn't loaded.

I'm at a loss here.

Anybody have any ideas? Do you need more information?
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erik258 · Posted: Fri Dec 29, 2006 11:03 pm Post subject:

try to ping a known publicly accessible ip, say 66.41.120.249 (that's mine)

if you get responses, the problem is restricted to nameserver settings.

have you tried running dhcpcd on the console and seeing what it said?

do you need to etc-update ?
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baigsabeeh · Posted: Sat Dec 30, 2006 12:11 am Post subject:

Pinging the IP you posted works. So, I guess it's a problem with nameserver settings. What do I need to do to fix those? I've never encountered this before.
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erik258 · Posted: Sat Dec 30, 2006 12:16 am Post subject:

the settings are in /etc/resolv.conf

what's in that file? anything?
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baigsabeeh · Posted: Sat Dec 30, 2006 12:34 am Post subject:

It has only one line.

erik258 · Posted: Sat Dec 30, 2006 12:46 am Post subject:

it has to be there, baigsabeeh. if it isn't your computer won't know which ip the namserver is. mine looks like this

jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

I can ping/browse to anything using an IP address, but DNS doesn't work. I created /etc/resolv.conf and added a nameserver XXX.XXX.XXX.XXX line to it.

Problem is, this file gets deleted every time the interface starts! I did find a /etc/resolvconf/interfaces/ra0 file (I'm connecting via RT2500 wireless) which had a nameserver line already in it with the correct IP address, but this didn't seem to be doing the trick either.

baigsabeeh · Posted: Sat Dec 30, 2006 12:52 am Post subject:

baigsabeeh · Posted: Sat Dec 30, 2006 12:57 am Post subject:

That did it, thank you, I really appreiciate this.
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jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

My apologies for crashing your thread, but it's likely we're having the exact same problem. Check for the presence of your resolv.conf file after you restart the interface and let me know if yours is getting deleted too.

I also found the file /etc/resolv.conf.ra0.sv which also seems to be getting deleted or re-generated every time the interface starts. It's very confusing and extremely frustrating. Any help would be greatly appreciated.

baigsabeeh · Posted: Sat Dec 30, 2006 1:13 am Post subject:

Which DHCPCD are you using? It may have something to do with that.
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jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

2.0.8-r3

baigsabeeh · Posted: Sat Dec 30, 2006 1:36 am Post subject:

I'm using 3.0.8 and I don't know if that might have something to do with it.
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erik258 · Posted: Sat Dec 30, 2006 1:43 am Post subject:

the network device doesn't need to be restarted for changes to resolv.conf to take effect. in fact, dhcp will overwrite resov.conf so if you run that it will destroy your changes.

instead, run dhcp and then edit /etc/resolv.conf.[/list]
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jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

I'll emerge -uD'ing dhpcd and see if that helps. In the meantime, here is my /etc/conf.d/net

Underdone · Posted: Sat Dec 30, 2006 1:46 am Post subject:

erik258 · Posted: Sat Dec 30, 2006 1:52 am Post subject:

that's not going to do any good; the nameserver line is already known.
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jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

erik258 · Posted: Sat Dec 30, 2006 2:05 am Post subject:

i assume it used to work, so i am left with no option but to blame your new version of dhcpcd. downgrade?
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jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

Well I emerged dhcpcd and my resolv.conf file is still getting cleared out every time I reboot. It's not getting deleted anymore since I ran

Underdone · Posted: Sat Dec 30, 2006 5:45 am Post subject:

Are you editing the resolv.conf file as root?

I also noticed something interesting in my resolv.conf file

jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

Yup, I'm actually logged in as root as I'm doing all of this. You may be right about dhcp. I'm used to DNS discovery happening automatically, so I would've
assumed that none of this would be necessary. Do you see anything in my /etc/conf.d/net or wireless files that might be overriding dhcp?

As for updating config files, which ones are you referring to? It wouldn't surprise me at all if I missed one or two.

jadfw007 · n00b Joined: 30 Dec 2006 Posts: 10

I gave up trying to find an elegant solution.

Contents of /etc/init.d/resolv-conf-hack.sh:

UberLord · Posted: Sat Dec 30, 2006 10:53 am Post subject: