I have a Linux workstation with 2 network cards - one to get to the internet (so that I
can work remotely from my home office) and one for my local lan (other machines, printers,
etc.)
About a week ago I updated it from FC20 to FC21 and had absolutely no problems. Everything
was working smoothly and I was able to use both networks with no problems. Then one of my
2 network cards "died" (SIDS I think) and I replaced it with another of a
different model. I did have to system-config-network-gui to set the network parameters
correctly and for two days it ran fine.
However I had a system crash (bad disk) yesterday (user files - nothing related to the
system) and after that I replaced the drive and rebooted. However from that point on I no
longer get name resolution from my ISP's 2 name servers. The new card is still
working correctly (and if I know the IP address I can get to my office, web pages, etc.
However if I try to do a ping <host> or nslookup <host> or traceroute
<host>, I have to wait until the command times out (or hit delete and kill the
command) and eventually I get a variation on "CANNOT CONNECT TO HOST" or some
such.
I have checked my ifcfg-* files under /etc/sysconfig/ (all 3 links of each of the 2 nics)
and they are unchanged.
My /etc/hosts file is unchanged, and there is nothing in /var/log messages to indicate
what the problem is (nor does dmesg show anything unexpected).
In short I have a heavy-duty workstation which should be able to connect to the internet
but can't.
Any suggestions will be appreciated, and any requests for further information will be
answered. This one is driving me crazy at this point.
Thanks in advance,
- wwa
--
william w. austin airedad(a)att.net
"life is just another phase i'm going through. this time, anyway ..."