Friday, April 3, 2015

Linux Network Management


Names

dnsdomainname

Show the systems DNS domain name
domainname

Show or set the systems domain name
hostname

Used to show or set the name of your machine for networking
nisdomainname

Show or set systems NIS/YP domain name
nodename

Show or set the systems DECnet node name
ypdomainname

Show or set the system's NIS/YP domain name
Network setup and commands
arp

This program lets the user read or modify their arp cache.
dig(1)

Send domain name query packets to name servers for debugging or testing.
finger

Display information about the system users.
ftp

File transfer program.
ifconfig

Configure a network interface.
ifdown

Shutdown a network interface.
ifup

Brings a network interface up. Ex: ifup eth0
ipchains

IP firewall administration used to set input, forward, and output rules.
netconf

A GUI interactive program to let you configure a network on Redhat systems.
netconfig

Another GUI step by step network configuration program.
netstat

Displays information about the systems network connections, including port connections, routing tables, and more. The command "netstar -r" will display the routing table.
nslookup

Used to query DNS servers for information about hosts.
pftp

Same as ftp.
ping

Send ICMP ECHO_REQUEST packets to network hosts.
portmap

DARPA port to RPC program number mapper. Must be running to make RPC calls.
rarp

Manipulate the system's RARP table.
rcp

Remote file copy. Copies files between two machines.
rexec

Remote execution client for an exec server. The host uses the rexecd server.
ripquery

Query RIP gateways. Request all routes known by an RIP gateway by sending an RIP request.
rlogin

Starts a terminal session on a remote host.
route

Show or manipulate the IP routing table.
rsh

Executes command on remote host.
rup

Displays summary of current system status of a remote host or all hosts on the network.
ruptime

Show host status of local machines.
rwhod

System status server, maintains database used by rwho and ruptime.
showmount

Show mount information for an NFS server.
tcpd

Access control facility for internet services. Can be set up to monitor requests for Telnet, finger, ftp, exec, rsh, rlogin, tftp, talk, comsat. It filters access for these requests.
tcpdchk

Tcp wrapper configuration checker.
tcpdump

Dump traffic on a network. Prints out headers of packets that match the boolean expression.
tcpdmatch

Predicts how the tcp wrapper will handle a specific request for a service.
Telnet

User interface to the TELNET protocol, setting up a remote console session.
traceroute

Print the route that packets take to the specified network host.
ipx_configure

Tool to setup Netware access.
ncpmount

Netware filesystem mounting program.
nprint

Novell print command.
pqlist

Netware printer list for a given server.
pserver

Netware print server.
slist

Netware server list.


Communications commands (includes mail)
biff

Notifies the system if mail arrives and who it is from.
comsat

Biff server to receive reports of incoming mail.
expire

Used to purge old news articles.
elm

Electronic mail.
ftp

File transfer protocol.
mailx

Berkley mail program.
metasend

Interface for sending non-text mail.
nn

Net news.
pine

Program for internet news and e-mail, Can send documents, graphics, local & remote messages.
sendmail

A popular Unix, Linux mail message transfer agent.
smail

A popular mail message transfer agent which is easier to set up than sendmail.
talk

Lets two parties talk simultaneously.
telnet

Allows a user to have a login session across a network on a remote host.
tin

Net news reader.
write

Allows users to directly interact with other users via terminal number (one way at a time).

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