Console commands for networking

This older page has been deprecated, please go to the Console page, Console Commands for Networking section

Here are a few networking commands that will provide more info about the driver, about the card, about its configured parameters and speed, and about its connection statistics.

Note: The ethtool utility is included in some but not all unRAID distributions. See here for more information about ethtool, and a download link.

• lsmod
  • lists the installed kernel modules, including your network driver
• ethtool -i eth0
  • displays the network driver being used by your network chipset (for eth0), and its version
• ethtool eth0
  • displays a number of the settings for your network chipset
  • displays the speed setting, typically "Speed: 1000 Mb/s" for a gigabit connection
  • displays the Wake-on-LAN setting, typically "Wake-on: g" if enabled for 'magic' packet
• ifconfig
  • displays various numeric parameters and statistics for your networking
  • displays your MAC address, as HWaddr
  • displays your local IP, as inet addr
  • displays your MTU setting
  • displays assorted transmit and receive statistics, including errors and collisions
• ethtool -S eth0
  • displays more detailed network statistics
• net lookup google.com
  • check for correct nameserver and DNS configuration, should provide the IP for Google if setup right
• ping -c5 google.com
  • another way to check for correct nameserver configuration (if it times out, or produces errors, you need to set a nameserver)
• egrep -i "rc.inet1|((forcedeath|r8169|e1000|e1000e|sky2|skge|tg3|bcm5700|sk98lin)[ :])|dhcp" /var/log/syslog
  • displays lines in the system log (/var/log/syslog) affiliated with networking