Usefull network commands Win/Unix

[rudedog]

Windows commands

• ping {hostname}
  Lets you check whether your internet connection is alive or lost
  Example : ping www.yourserver.com

* Rudedog's tip - use the -a parameters to resolve known IP address to host name. Useful for finding out a clients ISP name.
Example: ping -a 66.135.39.39

• tracert {hostname}
  Lets you trace packets and find if your connection is broken beyond your ip address. Also can be used to track the number of hops to get to the hostname
• Example: tracert www.yourservername.com

• ipconfig
  Find out your ip address, your network interfaces, transferred and received data information
  Example : ipconfig

• nslookup {hostname}
  Find out the dns name resolves to a IP - a way to test your dns server
  Example: nslookup www.your_server_name.com

• netstat -a
  Find out all the open ports on your machine
  Example: netstat -a

• netstat -nt
  Display all the tcp based established connections on your machine
  Example: netstat -nt

• telnet {hostname} {port}
  Telnet or connect to a machine at the specified port to find out whether that machine/server is working right
  Example: www.your_server_name.com 80

Unix/Linux commands

• ping {hostname}
  Lets you check whether your internet connection is alive or lost
  Example : ping www.your_server_name.com

* Rudedog's tip - use the -a parameters to resolve known IP address to host name. Useful for finding out a clients ISP name.
Example: ping -a 66.135.39.39

• traceroute {hostname}
  Lets you trace packets and find if your connection is broken beyond your ip address. Also can be used to track the number of hops to get to the hostname
  Example: traceroute www.your_server_name.com

• ifconfig
  Find out your ip address, your network interfaces, transferred and received data information
  Example : ifconfig

• nslookup {hostname}
  Find out the dns name resolves to a IP - a way to test your dns server
  Example: nslookup www.your_server_name.com

• netstat -a
  Find out all the open ports on your machine
  Example: netstat -a

• netstat -nt
  Display all the tcp based established connections on your machine
  Example: netstat -nt

• telnet {hostname} {port}
  Telnet or connect to a machine at the specified port to find out whether that machine/server is working right
  Example: telnet www.your_server_name.com 80

[whr4usa]

'netsh' contexts or ps cmdlets on windows and 'ip' on linuxes have superceded or are replacing most of the commands listed here

[GaSplat]

Yup, a lot happens in five years. Care to post an updated version?

[whr4usa]

I think I can handle that in a week or so when my semester is done (: