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Old 03-04-2002, 07:10 PM   #1
Cichlid
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Registered: Jan 2002
Location: Montreal
Distribution: Ubuntu 8.10
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Unhappy DNS or something else?


Timeout on some sites.

So I tried to ping and nothing happens. Just hangs.
I tried nslookup and got:

***nsctor.bellnexxia.net can't find 63.236.73.100 server fail

Anything I can try or change?

I have edited the rc.config file to NOT allow smpppd to modify the resolv.conf file. Doesn't change anything? Can there be another "problem" beside teh DNS?

Thanks,

Erik

P.S. If someone asks me to try something, I'll post a reply within the same thread. I don't want to keep on taking up room by replying as a new thread.
 
Old 03-06-2002, 05:10 PM   #2
kervin
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when that happens....

(i) what does your /etc/resolv.conf say?
(ii) can you ping the ip address of your DNS servers? both of them?
(iii) can you ping other IP addresses?
(iv) are you getting some DNS replies and not others?
 
Old 03-07-2002, 08:14 AM   #3
Cichlid
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/etc/resolv.conf has teh following:

### BEGIN INFO
#
# Modified_by: pppd
# Backup: /etc/resolv.conf.saved.by.pppd.ppp0
# Process: pppd
# Process_id: 720
# Script: /etc/ppp/ip-up
# Saveto:
# Info:
# This is a temporary resolv.conf created by pppd. The
# previous file has been saved as <see Backup: field
# above>. It will be restored when pppd disconnects.
# If you do not like pppd to change your nameserver
# settings then set MODIFY_RESOLV_CONF_DYNAMICALLY=no in
# /etc/rc.config.
#
### END INFO


nameserver 198.235.216.110
nameserver 207.236.176.8

Pinging of teh first DNS gives the following:

Jake:~ # ping -c 10 198.235.216.110
PING 198.235.216.110 (198.235.216.110) from 65.92.131.62 : 56(84) bytes of data.From 206.47.248.58: icmp_seq=4 Packet filtered
From 206.47.248.58 icmp_seq=4 Packet filtered
From 206.47.248.58 icmp_seq=5 Packet filtered
From 206.47.248.58 icmp_seq=7 Packet filtered

The second DNS:

jake:~ # ping -c 10 207.236.176.8
PING 207.236.176.8 (207.236.176.8) from 65.92.131.62 : 56(84) bytes of data.
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument
ping: sendmsg: Invalid argument

--- 207.236.176.8 ping statistics ---
10 packets transmitted, 0 received, 100% loss, time 9041ms

So that one crapped out.

I am able to ping other IPs. I don't think I understand you last question though.

The curious thing though is, I didn't enter these DNS values. Thoses were not the one supplied to me. smpppd is seet to NOT modify my setting as well.

I really don't know what's going on now???

Erik
 
Old 03-07-2002, 02:54 PM   #4
kervin
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to me, your resolv.conf looks fine.

I tried doing nslookup's with the two nameservers and they both seem fine as well. The nameservers seem to be dropping pings, but traceroutes find them.

do these servers at least belong to your ISP?

these ping results look strange. Are you running a firewall or something?

You ping all other IPs fine right?
 
Old 03-07-2002, 03:00 PM   #5
Cichlid
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Registered: Jan 2002
Location: Montreal
Distribution: Ubuntu 8.10
Posts: 178

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I do have the SuSE default firewall running. I will turn it off and see if this helps.

The DNS do belong to sympatico.ca. They came with my registration info.

In windows everything seems to work fine. I wonder if it's not actually a DNS thing but somethign with my network settings??

I have notice that the MRU can't reach 1500. it goes up to 1490. So I'm trying to find a way to set the MRU to goto 1490 instead of 1500.

Thanks for the input.

Erik
 
  


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