Re: trouble with dns possibly?

I've been having very similar problems for the last few days. I haven't
made any changes in my system and until a few days ago I had no difficulty
connecting to websites using Netscape and lynx and Mozilla. I have two
machines running different versions of RH Linux (5.2 and 7.1). Both now
have the problem with looking up URL's, but I have no trouble using
ssh with the address given as numbers. They can't look up websites
given their address in numbers either. They convert the numerical
address to the mnemonic address and then try to look up the mnemonic
address.

I consider it unlikely that both machines developed the same problem at
the same time. I don't have a local network. So I'm inclined to blame
the ISP somehow. Maybe they've done something that makes them incompatible
with Linux, e.g. changed some hardware or software.

I tried editing /etc/ppp/resolv.conf and found that it was automatically
changed back after I dialed up the ISP. Here are the other outputs people
mentioned in this thread:

# /sbin/route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
67.249.128.18 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 67.249.128.18 0.0.0.0 UG 0 0 0 ppp0

# /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr 00:10:A4:97:76:EB
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0

ppp0 Link encap:Point-to-Point Protocol
inet addr:67.249.155.3 P-t-P:67.249.128.18 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1524 Metric:1
RX packets:613 errors:0 dropped:0 overruns:0 frame:0
TX packets:646 errors:0 dropped:0 overruns:0 carrier:0
collisions:0

I don't feel I can ask the ISP since they are clueless about Linux.
Unfortunately, I don't know enough myself to compensate for that.

Ignorantly,
Allan Adler
(E-Mail Removed)

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Allan Adler wrote:
>
> I've been having very similar problems for the last few days. I haven't
> made any changes in my system and until a few days ago I had no difficulty
> connecting to websites using Netscape and lynx and Mozilla. I have two
> machines running different versions of RH Linux (5.2 and 7.1). Both now
> have the problem with looking up URL's, but I have no trouble using
> ssh with the address given as numbers. They can't look up websites
> given their address in numbers either. They convert the numerical
> address to the mnemonic address and then try to look up the mnemonic
> address.

> I tried editing /etc/ppp/resolv.conf and found that it was automatically
> changed back after I dialed up the ISP.

What gets put in /etc/ppp/resolv.conf when you dial up? What is in
/etc/resolv.conf?

It is possible that you don't have anything in place to copy the former
to the latter when you dial up, but you manually copied it some time ago
and the ISP has changed their DNS servers.

Regards, Ian