Network Related Commands

Network related commands :


host 193.9.200.1                                  Resolves ip to host name (from /etc/hosts file)

host ibm                                                                Resolve ibm to ip address (from /etc/hosts file)

hostname ibm                                      To change the host name to ibm

entstat en0                                            To the status of ethernet device en0

entstat -d en0                                       To list the detailed status of device en0

no -a                                                       To list all net configurable attributes and their values

no -d thewall                                         To change thewall parameter to its default value

no -o ipforwarding=1                          To make the machine as router in tcpip networks

traceroute ibm                                      To trace the route to ibm

ping ibm                                                                To tcp ping to the machine ibm

ifconfig -a                                             To show the status of all network interfaces 

ifconfig en0                                          To show the status of en0

ifconfig en0 up                                     Turns on network card en0
ifconfig en0 down                               Turns off network card en0
ifconfig en0 detach                             Removes en0 card from the network interface list 

ifconfig en0 inet 194.35.52.1 netmask 255.255.255.0 up          

                                                                Configure en0 starts immediately

ifconfig en0 alias 195.60.60.1          Create alias ip address for en0 

route add 0 192.100.13.7                  To make 192.100.13.7 as default gateway for entire network

route add 192.100.12.0  192.100.13.7    To make 13.7 as gateway for 12.0 network

route -f                                                   To clear the gateway table

chdev -l inet0 -a hostname=si           To change the host name to si permanently

netstat -a                                               To show the state of all sockets

netstat -c                                               To show the network buffers cache

netstat -D                                              To show the net drops of packets

netstat -i                                                                To display interface statistics

netstat -r                                                To show the routing table

netstat -rn                                              To show routing table (ip will be given instead of host names)

netstat -s                                                To show the statistics of the protocols

netstat -s -p < tcp/udp/ipv6>             To show the statistics of respective protocols