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Speeding up your hard drive (#1)
Get faster file transfer by using 32-bit transfers on your hard driveJust add the line:hdparm -c3 /dev/hdX

to a bootup script.

If you use SuSE or other distros based on SYS V,

/sbin/init.d/boot.local
should work for you.

In this tutorials , i will show you step by step how to configure OpenVPN ( open source ) with some illustration images . Hope you understand and easy setup by yourself

Secure your traffic in Linux with Openswan.

The most popular way of configuring IPsec connections under Linux is by using the Openswan openswan.org [openswan.org] ) package. Openswan is made up of two components: pluto and, optionally, KerneL IP Security (KLIPS). As of Version 2.6, the Linux kernel includes support for IPsec, but KLIPS can be used instead for some additional features. pluto is the user-land daemon that controls Internet Key Exchange (IKE) negotiation.

IP routers are used to connect networks together and to pass traffic between the networks. An IP router will, by default, forward all traffic that arrives at one of its interfaces to another network. An IP router can be considered to be an open door between networks, permitting free access.

One of the first things you will want to setup on your new Solaris/OpenSolaris operating system is a web server, even though Solaris now comes with Perl and Apache installed by default, it is still worth installing your own version. New versions of Perl and Apache will always be ahead of the Solaris version, plus you will never damage the pre-installed version.

IIS and Apache are the two most widely deployed Web server. Until now IIS 7 has been released with more security updates. But with this article, i just want to give a most important steps for securing IIS from previous version.

Unix makes it quick and easy to see which ports on a system are open, but how can you do that on Windows? Well, with FPort from Foundstone foundstone.com/us/resources-free-tools.asp [foundstone.com/us/resources-free-tools.asp] ), it's as quick and easy as running good old netstat.

A quick and easy way to access and administer Cisco devices is Telnet method. But as you knew, Telnet transmit information in "clear text" across the network. Username and password are sent without encryption. SSH is more than secure.