Table A.13. Networking Utilities
| COMMAND | GENERAL USAGE | DESCRIPTION |
|---|
| dig | dig HOST | Utility used to look up DNS information for the specified host. |
| ftp | ftp HOST | File Transfer Protocol client utility used to transfer files to and from FTP servers. |
| ifconfig | ifconfig [OPTIONS] | Utility used to display and configure network interface cards. Common options include -a
Display all configured devices |
| ifdown | ifdown INTERFACE | Script used to stop the specified network interface card. |
| ifup | ifup INTERFACE | Script used to start the specified network interface card. |
| netstat | netstat [OPTIONS] | Displays network statistics. Common options include -r
Show routing table -n
Do not resolve host names -s
Display network statistics |
| ping | ping HOST | Utility used to test network connectivity using ICMP packets directed to the specified host. |
| route | route | Displays or modifies the current IP routing table. |
| ssh | ssh HOST | Secure shell client used to open a terminal session on a remote SSH server. |
| tar | tar [OPTIONS] FILE | Tape or disk archive utility used to combine multiple files into one single archive. Common options include -c
Create new archive -t
Test archive -x
Extract archive contents -z
Create archive using gzip compression -j
Create archive using bzip2 compression |
| telnet | telnet HOST | Insecure method used to open a terminal session on a remote server. |
| TRaceroute | traceroute HOST | Utility used to test network connectivity and trace paths used to reach remote hosts. |