October 2005

You can use route command to configure routing. Syntax is as follows: route add net {network-address} netmask {subnet} {router-address} Let us assume your router address is 192.168.1.254 and network ID is 192.168.1.0/24, then you can type route command as follows: # route add net 192.168.1.0 netmask 255.255.255.0 192.168.1.254 OR To add a default route: # […]

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HP-UX unix desktop is very sensitive to networking changes such as hostname and IP address. I learned this hard way. First, you need to kill HP-UX desktop (CDE) with the following command. Open a terminal and login as root user.

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If you’re new to Linux, here’s a simple firewall that can be setup in minutes. Especially those coming from a Windows background, often lost themselves while creating linux firewall. This is the most common question asked by Linux newbies (noobs). How do I install a personal firewall on a standalone Desktop Linux computer. In other […]

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Connection tracking is an essential security feature of Iptables. But, what is connection tracking? It is the ability to maintain connection information in memory. This is new feature added in 2.4.xx Linux kernel. Eariler only commercial firewall has this feature but now it is part of Linux. It can remember connection states such as established […]

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Sun Microsystems plans to release the first update to Solaris 10 by the end of the year, adding an overhauled start-up process, software update feature and performance improvements. It includes following features: Newboot – A grub like software that can boot different operating system such as Linux/Windows/BSD (dual boot) Sun Update Connection – A completely […]

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Recently one of our HP-UX servers went down and it needed recovery. Since I’m new to HP UX one of our senior UNIX admin pointed me that they have a system recovery tape. After going through our internal docs and other resources, I was able to recover system :) Here is what I did… First […]

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You will find lots of tutorials about how to setup NTP server. However if you just wanna synchronize single Linux desktop connected via A/DSL Internet connection use ntpdate command. It is very easy to configure and install ntp client. Following instructions are only compatible with Debian / Ubuntu Linux. ntpdate client ntpdate sets the local […]

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