RIP routing is a distance-vector routing protocol which is simple to configure. The routing protocol determines the best path to a target by estimating the distance in number of hops or intermediate routers.
EIGRP enghanced version of the IGRP that supports variable-length subnet masks and several additional features.
Sometimes a man page for a package does not exist in the MANPATH and cannot be seen by the man program. Using nroff to format the text the way that man does is an option to altering your MANPATH variable.
During troubleshooting, it may be helpful to monitor the number of process instances to see if it is stable or increasing.
After making changes to Apache’s configuration file (httpd.conf), it is necessary to restart Apache for the changes to take effect. A normal restart will close active connections which may cause problems for users.
This command will safely stop apache server processes.
Copying a directory tree and its contents to another filesystem using tar will preserve ownership, permissions, and timestamps. A neat trick allows using tar to perform a recursive copy without creating an intermediate tar file.
The ability to telnet to a Cisco router makes administration easier. This simple configuration enables telnet logins to the router and protects them with a password.
The router hostname alters the prompt that is displayed while connected to the router. It does not affect routing or name resolution but can make administration safer in an environment with multiple routers.
A login banner is displayed whenever someone connects to the router by telnet or console connections.
One can easily shutdown from a command line or from a shortcut. This works on all modern version of Windows from XP to Windows 8.
In many situations such as remote sites connected by DSL or cable modem, the outside interface IP address of a firewall must support dynamic addressing by DHCP.
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