The slowness in DNS resolution is typically caused by failure to connect
to the first name server in your /etc/resolv.conf. Followed by a
successful query of the second name server.
You may want to check you firewall iptables setup.
Steve
Cabuz Alexandru wrote:
Are you using static ip addresses, or dynamic?
In either case, what is in your /etc/resolv.conf file?
I am using a static address.
Until yesterday I had something like this in /etc/resolv.conf
search [name]
nameserver [IP of server]
But while trying to figure this problem out I installed the resolvconf
package, and then my /etc/resolv.conf contained this
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
I therefore added these lines to the interface definition
in /etc/network/interfaces
dns-nameservers [IPs of the servers]
dns-search ges.univ-montp2.fr
I also did
apt-get install --reinstall dnsutils
Now it seems to be able to connect to the DNS server although much slower than
it used to.
I have changed all the system passwords but I still think I might have gotten
rootkited. rkhunter and chkrootkit give nothing though.
It would be great if I could go back to configuring the /etc/resolv.conf by
hand (rather than automatically by resolvconf). Things used to work much
faster back then.
I would also like to do a debsums on my system, but I need to refresh the sums
because they might have gotten hacked, assuming the worst case scenario.
Is there a way to download the correct md5sums for all packages from somewhere
so as to be able to really see if anything was tampered with? The sums on my
hard drive are not reliable anymore, I think.
Thank you for your help.
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