11 April 2008

Command Line Networking

Bagi seorang administrator network bekerja dengan commandline yang berhubungan dengan jaringan adalah makanan sehari-hari, tapi bagi saya seringkali lupa command line untuk trace ip atau cek connection, jadi gak ada salahnya jika saya catat di blog saya ini dan sapa tahu berguna juga bagi kawan-kawan yang lain.

Commandline pada DOS/Windows

Display Connection Configuration: ipconfig /all
Display DNS Cache Info Configuration: ipconfig /displaydns
Clear DNS Cache: ipconfig /flushdns
Release All IP Address Connections: ipconfig /release
Renew All IP Address Connections: ipconfig /renew
Re-Register the DNS connections: ipconfig /registerdns
Change/Modify DHCP Class ID: ipconfig /setclassid
Network Connections: control netconnections
Network Setup Wizard: netsetup.cpl
Test Connectivity: ping www.whatismyip.com
Trace IP address Route: tracert
Displays the TCP/IP protocol sessions: netstat
Display Local Route: route
Display Resolved MAC Addresses: arp
Display Name of Computer Currently on: hostname
Display DHCP Class Information: ipconfig /showclassid

Commadline pada UNix

Note: You MUST be at the ROOT user to make/save any changes. You will need to save your changes in the /etc/rc.conf file. Network cards are referred to as dc0, dc1, dc2, etc based on their position on the PCI bus.
Display Current Config for all NIC's: ifconfig
Display Current Config for dc0: ifconfig dc0
Assign IP/Subnet: ifconfig dc0 inet 192.168.1.2 netmask 255.255.255.0
Assign Gateway: route delete default && route add default 192.168.1.1
Assign multiple IP's: ifconfig dc0:0 192.168.1.2
Assign second IP: ifconfig dc0:1 192.168.1.3
Disable network card: ifconfig dc0 down
Enable network card: ifconfig dc0 up

Commandline pada Linux

Note: You MUST be at the ROOT user to make/save any changes. Linux users, your distribution will determine the location of your network config file which will need to be updated and saved in order for the changes to remain in effect after rebooting. Network cards are referred to as eth0, eth1, eth2, etc based on their position on the PCI bus.
Display Current Config for all NIC's: ifconfig
Display Current Config for eth0: ifconfig eth0
Assign IP: ifconfig eth0 192.168.1.2
Assign IP/Subnet: ifconfig eth0 192.168.1.2 netmask 255.255.255.0
Assign Default Gateway: route add default gw 192.168.1.1
Assign multiple IP's: ifconfig eth0:0 192.168.1.2
Assign second IP: ifconfig eth0:1 192.168.1.3
Disable network card: ifconfig eth0 down
Enable network card: ifconfig eth0 up
View current routing table: route "or" route -n
View arp cache: arp "or" arp -n
Ping: ping -c 3 192.168.1.1
Trace Route: traceroute www.whatismyip.com
Trace Path: tracepath www.whatismyip.com
DNS Test: host www.whatismyip.com
Advanced DNS Test: dig www.whatismyip.com
Reverse Lookup: host 66.11.119.69
Advanced Reverse Lookup: dig -x 66.11.119.69

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