server Archives - Sys Admin Guides, How To's, etc by Marios Maravelias

How to check if some one is spamming from my server (Linux Plesk 8.x)

Nov

13

2007

If you see a lot of smtp connections or your server gets constantly in spam black lists, maybe you should check if some bot spams through your server. The are 2 cases of spamming through a box: 1)using unsecure php forms that bots abuse 2)using smtp connection from an outside client this artice is about ...

HOW TO: CTRL-ALT-DEL via RDP

Aug

23

2007

Did you ever needed to use CTRL-ALT-DEL through a Remote Desktop Connection?

Exporting and Importing SSL Certificate in Windows IIS Server

Jul

26

2007

Exporting/Backing up your Certificate/Private Key in IIS (.pfx file format)

Checking if a server is under ddos attack

Jun

4

2007

A quick and usefull command for checking if a server is under ddos is: netstat -anp |grep ‘tcp\|udp’ | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort -n

How to block libwww-perl under Apache web server

May

31

2007

Use mod_rewrite and .htaccess file to block user agent libwww-perl. Open your .htaccess file and add rule as follows:

How to Prevent the IIS SMTP Virtual Server from Relaying E-mail Messages

May

30

2007

Do the following: 1) Start Internet Information Services Manager or open the Internet Information Services (IIS) snap-in. 2) Expand Server_name, where Server_name is the name of the server, right-click Default SMTP Virtual Server, and then click Properties.