Network Related Commands, Tools & Files

Configuration commands and tools Note: See Man pages for use; you may need to use the locate command to find some of these.

Network Related Files (some of many)

To view or edit network card configuration files look in /etc/sysconfig/network-scripts/
If you have loaded your network cards as modules you can view or edit the driver, IRQ and I/O in /etc/conf.modules

Other network related files:
/etc/hosts.allow and hosts.deny
/etc/named.conf and the directory it references if running DNS server
/etc/sysconfig/network-scripts/ and inclosed files

Ping or Traceroute codes
Result Codes seen in traceroute and possibly ping output:
        !   Success
* Time out
N Network Unreachable
H Host Unreachable
P Protocol Unreachable
A Admin Denied (Access List)
Q Source Quench Received (Congestion)
? Unknown (any other ICMP message)

original document created by Pete Nesbitt, September 2000