Link Aggregation Control Protocol (LACP) allows multiple network interfaces to work together to increase bandwidth and redundancy. LACP is simlar to IPMP (IP Multipathing) however IPMP is wasteful with IP addresses and can cause problems with ssh remote execution. Whereas LACP only requires one IP address, you need to ensure that your switches support LACP. [...]

The simple procedure listed here will help you to run commands remotely on rou cisco routers from your PCs. Enable RCMD server for RSH & RCP Cisco IOS by default disables the remote command execute feature through rsh and rcp. ciscorouter# conf term ciscorouter(config)# ip rcmd rsh-enable Creata Local User A local user account is [...]

To backup a Cisco Router or Switch to a FTP server, the FTP server should be reacheable from the router or switch. Logon to the Router/switch and enter the Privilege Exec mode using the enable password. Enter Global Configuration mode ciscorouter# conf term Configure FTP User ciscorouter(config)# ip ftp username confback ciscorouter(config)# ip ftp password [...]

Changing this setting without a GUI will require some text editing, but that’s classic linux, right? Let’s open up the /etc/network/interfaces file. I’m going to use vi, but you can choose a different editor sudo vi /etc/network/interfaces For the primary interface, which is usually eth0, you will see these lines: auto eth0 iface eth0 inet [...]

You can use NTP to synchronize time on a variety of devices including networking equipment. I have included the necessary NTP commands for a variety of Cisco Systems products because it is one of the most popular manufacturers of networking equipment and would feature in the overall architectures of many home office/small office (SOHO) environments [...]

The Network Time Protocol (NTP) is a protocol used to help synchronize your Linux system’s clock with an accurate time source. There are that allow the general public to synchronize with them. They are divided into two types: Stratum 1: NTP sites using an atomic clock for timing. Stratum 2: NTP sites with slightly less [...]

One of the many tasks we could be facing from time to time in our work is setting up and building a production proxy server. Proxy implementation could be done in several ways to achieve the same goal. One best bet we could have with this kind of setup is by using Squid linux software [...]

PPTP is known to be less secure than other VPN software, but if you need a quick solution for a VPN server that will connect out of the box from Windows workstations PPTP is the obvious choice. This post will show how easy it is to setup a pptp vnp server on Debian Etch. A [...]

Please find below a step by step process to configure the PIX Firewall from scratch. A simple scenario is given here where you have a corporate network with a PIX Firewall connected to the Internet through the Outside Interface, Internal Network through the Inside interface and DMZ through the DMZ Network. This paper would assist [...]

Enabling your PIX to be a DHCP server for your home network requires very few statements. First you have to enable the feature on the desired interface, which is usually the “inside” interface. The next step is to set the range of IP addresses the PIX’s “inside” interface will manage, and finally, you need to [...]