i would like to install a spyware\anti virus program on my linux
it's a server..
please help me to know witch program i need.
thank you.

The best (IMHO) AV program for linux in ClamAV. I use it on my mailserver to block viruses from getting to clients.

There isn't really any spyware written for Linux. Antivirus programs like clamav are for protecting Windows clients from viruses by scanning incoming email and scanning samba shares - Clamav doesn't have any 'active' scanning of files that are opened or executed.

There are some programs which claim to be Linux antivirus programs, eg. from F-prot and others, but wether they are aimed more at protecting Windows users (like Clamav) or can actually stop Linux virus infections I don't know. In reality the chance of getting infected with a Linux virus is almost insignificant, since none of them ever spread widely and since you'd have to manually change the permissions on it and manually run it.

The real proof of all this is that the open source community hasn't seen the need to make a desktop antivirus program yet. Its very unlikely that they would produce examples of every security program under the sun (and every other type of software too) yet miss out something that was essential to the security of the computer.

Paranoia Paranoia Paranoia!!!

It's the worse of the standards created by Microsoft.

I just can't stand this trend that attempts to Windozify our Linux/Unix boxes.

Sure, running Windows may be a traumatic thing...
Then users hear that Linux is 100% secure (which is not true because security depends on the user + the OS).

I advise you to take the time to learn this operating system and realize yourself why, in many cases, the Microsoft ways don't apply...

Installing Linux and/or BSD and/or Solaris has never been easier. Play!
Live-CD's take this to another level (most of them, by default, won't write anything on your hard drive). Now go ahead and try to infect some executables, deleting entire directories, etc......

You may choose from this list anyway: (there's a new one which is based on OpenSolaris)
http://www.frozentech.com/content/livecd.php

Well, the most ridiculous thing, to me, is how "anti-virus programs" are touted as "the cure" of a serious problem that "affects Windows, and not <X>."

I guess they sell a lot of copies that way, but it's really a matter of selling largely-useless programs that are designed to keep the wolves out of your barn when the proper solution is simply to close the barn door!

Windows' security is not "spectacularly awful," and Linux's security is not "spectacularly good." What is different about the two systems is very simple:

• In a typical consumer installation of Windows, there is only one user and that user is an Administrator. The typical Windows installation sequence does not guide the user toward creating a so-called "limited user," although the capability is there. Limited-users are made inconvenient to the ordinary installation-process.
• In a typical consumer installation of Linux, there are at least two users. One is all-powerful root, and the second is the perfectly ordinary account used by the owner for everyday purposes.
• Therefore, when a rogue program runs on a Windows box, the odds are dis-proportionately high that its highly privileged requests will be granted, whereas on a Linux box the odds are high that it will fail. But this is not an intrinsic failure of the Windows architecture! It is simply a consequence of the fact that, in Windows, "the safety on the gun is probably turned off."

If you have a Windows box, you simply must set up your system so that you are a limited user except when you are actively maintaining the system, which you do as Administrator. You must give just-a-moment's thought as to what files properly should be "read-only" (that would be, "most of them") to any ordinary user, and make them that way. This is perfectly sensible: you're not only protecting yourself against rogue intuders, but against your own oops... "Ka-ka occurs."

And the same rules apply to Linux!

Viruses and such ... rogue programs ... are purely opportunists. They are not magical and they do not work by magic. If you pay the slightest bit of attention to system security, both operating systems can be secured. Their security models, if used, are comparable, and effective. People who routinely lock their office doors and filing-cabinets at night, and who change the batteries in their smoke-detectors, are simply stupid-careless with their computers, and the far-more-valuable things that are in them. It's not Windows' fault.

Here's the deal. Even running as a user, a virus still has access to the most important thing on the computer: my files. Therefore, I take additional security precautions. I run clamav on my linux machines, and symantec av on windows. I keep my system patched, and use multiple layers of tight firewalls. I'm not so obsessive about security that it hinders day-to-day use, but it does protect my computer, my network, and my data.