Thanks for the reply:
I did as you suggested but still no success.
Here's the output:
plug:/var/lib/apt/lists/partial# mv * ~/partial/ #just in case I needed them back:-)
plug:/var/lib/apt/lists/partial# ls
plug:/var/lib/apt/lists/partial# apt-get clean && apt-get update
Hit
http://security.debian.org squeeze/updates Release.gpg
Ign
http://security.debian.org squeeze/updates/main Translation-en_US
Hit
http://security.debian.org squeeze/updates Release
Ign
http://security.debian.org squeeze/updates/main Packages/DiffIndex
Ign
http://security.debian.org squeeze/updates/main Sources/DiffIndex
Ign
http://security.debian.org squeeze/updates/main Packages
Ign
http://security.debian.org squeeze/updates/main Sources
Hit
http://security.debian.org squeeze/updates/main Packages
Hit
http://security.debian.org squeeze/updates/main Sources
Err
http://ftp.egr.msu.edu squeeze Release.gpg
Temporary failure resolving 'ftp.egr.msu.edu'
Err
http://ftp.egr.msu.edu squeeze/main Translation-en_US
Temporary failure resolving 'ftp.egr.msu.edu'
Reading package lists... Done
W: Failed to fetch
http://ftp.egr.msu.edu/debian/dists/squeeze/Release.gpg Temp
orary failure resolving 'ftp.egr.msu.edu'
W: Failed to fetch
http://ftp.egr.msu.edu/debian/dists/squeeze/main/i18n/Translation-en_US.lzma Temporary failure resolving 'ftp.egr.msu.edu'
W: Some index files failed to download, they have been ignored, or old ones used
instead.
plug:/var/lib/apt/lists/partial# ls
plug:/var/lib/apt/lists/partial# ping ftp.egr.msu.edu
PING ike.egr.msu.edu (35.9.37.225) 56(84) bytes of data.
64 bytes from ike.egr.msu.edu (35.9.37.225): icmp_seq=1 ttl=50 time=98.8 ms
64 bytes from ike.egr.msu.edu (35.9.37.225): icmp_seq=2 ttl=50 time=100 ms
64 bytes from ike.egr.msu.edu (35.9.37.225): icmp_seq=3 ttl=50 time=98.8 ms
^C
--- ike.egr.msu.edu ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 98.855/99.245/100.005/0.537 ms
plug:/var/lib/apt/lists/partial# cat /etc/apt/sources.list
# deb
http://ftp.us.debian.org/debian/ squeeze main
deb
http://ftp.egr.msu.edu/debian/ squeeze main
deb-src
http://ftp.egr.msu.edu/debian/ squeeze main
deb
http://security.debian.org/ squeeze/updates main
deb-src
http://security.debian.org/ squeeze/updates main
plug:/var/lib/apt/lists/partial#
My /etc/apt/sources.list has not been changed since installation and looks as shown above.
Something else that may be relevant is the following:
plug:/var/log# ping
http://www.debian.org/mirror/listping: unknown host
http://www.debian.org/mirror/listplug:/var/log#
I've not noticed any other difficulty resolving URLs.
thanks again