Section G.11. Network Troubleshooting

G.11. Network Troubleshooting

Table G-13 provides network troubleshooting information, highlighting differences in methods and configuration file locations between Solaris and Linux (RHEL, SLES).

Table G-13. ^[*] Network Troubleshooting Methods and File Locations

Tasks	Solaris	Linux
Display interface settings	ifconfig	ip ifconfig
Display interface status and statistics	netstat -i	netstat -i ifconfig
Configure interface	ifconfig	ip ifconfig
Check various network statistics	netstat	netstat
Check DNS resolver	more /etc/resolv.conf	more /etc/resolv.conf
Check name services config	more /etc/nsswitch.conf	more /etc/nsswitch.conf
Display kernel network parameters	ndd /dev/ip (\?) parameter ndd /dev/tcp (\?) parameter	sysctl -a | grep ^net
Configure kernel network parameters	ndd -set driver parameter	sysctl -w variable=value
Check for network link	ndd driver link_status	ethtool mii-tool
Query DNS	nslookup dig	nslookup dig
Check routing table	netstat -r	netstat -r route
Check ARP entries	arp -a	arp
Testing for connectivity	ping	ping
Check IP path	traceroute	traceroute
Capturing network packets	snoop	tcpdump tethereal ethereal

^[*] Table A-20 of IBM Redbook