SysAdminGear

This blog is promoting some anti spam software server to help sysadmins to keep their servers clean of spam. Actually spam is a worldwide problem and we should combat it.

Anti spam software server Company: Isode

M-Switch Anti-Spam Anti Spam Software Server intercepts inbound SMTP messages at the boundary of an enterprise.

Messages are opened, examined and if determined not to be spam, delivered to the correct server within the enterprise.

How works M-Switch Anti-Spam Anti Spam Software Server?
M-Switch Anti-Spam uses multiple methods to determine if an incomming message is spam, methods that are key to its high accuracy and low rate of false-positives. Available on Red Hat Enterprise Linux, SuSE Linux, Solaris, Windows and HP-UX.
anti spam software serve, antispam, best anti spam software

We will keep you updated to help you finding the best anti spam software.

Spam is a big trouble for all system administrators and in general for Internet usage. This blog will promote some of the best anti spam software.

GFI Anti Spam Filter Presentation



GFI Anti Spam Filter - anti spam software server
GFI Anti Spam FilterServer based anti spam, anti-phishing & email management solution for Exchange and SMTP servers with over 80,000 SMB customers and counting. Benefit from advanced spam detection technology capturing 98% of spam and phishing emails, whilst minimizing false positives. Also adds disclaimers, mail archiving/reporting, auto replies, POP3 downloading and more!

Company name:
GFI Software Ltd anti spam software server


GFI anti spam software server Brochure

This post is related to "anti spam software server", helping you to find the "best anti spam software"

Spam Firewall is a plugin for Movable Type that can help reduce this load. Spam Firewall want to block 80% of spam attempts before they reach Movable Type comment and trackback scripts.

Spam Firewall creates a PHP script that acts as a firewall. Once installed, when comments or trackbacks are posted, they get posted to the PHP firewall script.

The Spam Firewall will scan the the request against a list of common spam patterns. And if the request matches, things stop right there. If the request passes the test, it gets forwarded to Movable Type for processing in the normal manner. Most spam is blocked quickly with Spam Firewall, without consuming large amounts of CPU and memory.

Requirements:

- Movable Type 3.2+
- PHP (Note: you do not need to enable Movable Type dynamic publishing to use Spam Firewall.

(via: http://mt-hacks.com/ )

Spam Firewall Instructions

OpenSSO Admin Console ScreenShot


( http://en.wikipedia.org/wiki/OpenSSO )

OpenSSO is an open source access management and federation server platform. OpenSSO is based on Sun Java System Access Manager.

Download OpenSSO

OpenSSO Complex Deployment Exercises

OpenSSO Complex Deployment Lab 1 Exercise 1


OpenSSO Complex Deployment Lab 1 Exercise 2


OpenSSO Complex Deployment Lab 1 Exercise 3

Citrix Application Switch Load Balancing

"The Citrix Application Gateway™ is used by organizations to deliver applications, packaged and/or transformed, to the screens and speakers of IP phones."
( http://www.citrix.com/English/PS2/products/product.asp?contentID=15058 )

Citrix Application Switch Load Balancing Video:


Citrix Application Profiling

Algorithms for Data Management and Migration

by Samir Khuller - January 23 (2008)

Algorithms for Data Management and Migration - ABSTRACT:
"I will describe some algorithms for addressing some fundamental optimization
problems that arise in the context of data storage and management. In the
first part of the talk we will address the following question: How should
we store data in order to effectively cope with non-uniform demand for
data? How many copies of popular data objects do we need? Where should
we store them for effective load balancing?"

by Samir Khuller - January 23 (2008)

Algorithms for Data Management and Migration video:

http://www.youtube.com/watch?v=ojEpiwytRNk

This is a Openmosix load balancing video.
Openmosix is a good load balancing software for newbies. It is a Linux kernel extension for single-system image clustering which turns a network of ordinary computers into a supercomputer.

The Openmosix Source code and mail archives continue to be available from SourceForge as read-only resources.

Video tags: load balance, load balancing, load balancing software, server load balancer

Download Openmosix load balancing Software

- Server load balancer
Server Load Balancing Tutorial. Configured on A10 Networks (Featuring A10 AX)

In four minutes this video tutorial will show you how to setup a basic load balancing senario on A10 AX Load Balancer

Server load balancer Video:

If you run a Dedicated Server running cPanel and need Anonymus FTP access on a domain name.

1. Login to cPanel domain name account (http://domain.tdl:2082)

2. Look for Anonymous FTP link.

3. Enable and configure anonymous FTP.

Users should login with nonymous@domain.tdl and dont use password or use any.

If you have a Managed Server you ca ask to support.

Managed Servers are the best! ;)

If you run a Dedicated Server but it is not a managed server and you need to use a proxy with yum, just run the next command:

export http_proxy=http://PROXYIP:PORT

If you have managed server just contact you managed server support and ask to configure a proxy on you managed server.

Parallel NFS Read Write Faster than NFS
The Network File System (NFS) is a stalwart part of most modern local area networks but is inadequate for the demanding input and output-intensive applications commonly found in high-performance computing -- or, at least it was. The newest revision of the NFS standard includes Parallel NFS (pNFS), a execution of file sharing that multiplies transfer rates by orders of magnitude.

NFS is pretty old file used sharing technology for UNIX operating system and storage systems. However, it suffers from performance issues. NFSv4 can address the data files access issues by adding the parallel NFS (pNFS) that is a method that introduces a "Data Access Parallelism". It result is extreme fast data file sharing for clusters and higher availability configurations.

In addition to pNFS, NFSversion4.1 provides the next "features":
- Sessions
- Directory Delegation and Notifications
- Multi-server Namespace ACL,SACL,DACL
- Retention Attributions
- SECINFO_NO_NAME.

Asus N10J-A2 Netbook

Asus N10J-A2 Netbook Specs:

• Processor: Intel's Atom 1.60GHz
• OS: Microsoft's Vista Business edition
• HD: 320GB hard drive
• 802.11 n Wireless Networking
• NVIDIA GeForce 9300M GS
• RAM: 2GB DDR II
• Express Gate
• 1.3 MP Integrated Webcam
• Fingerprint Reader
• Altec Lansing Speakers
• Express Card Slot/34
• USB 2.0 Port
• Gigabit Ethernet Ports
• Bluetooth Wireless Technology
• HDMI Port
• 6 Cell Lithium-ion Battery
• Asus Bag included
• 10.2-inch WSVGA Display
• 1024 x 600 Resolution
  

Asus N10J-A2 Netbook Presentation Video:

Asus eeePC windows XP boot time comparasion from the internal SSD and a 4GB SDHC (Sandisk class2). Synced from the end of the bootdisk selection menu.

Asus eeePC boot time comparasion from the internal SSD and a 4GB SDHC

How to make Windows XP run faster

This video tutorial have at the time 5 start sating from the 1,023 ratings on youtube. If you run windows XP you should see this video to make Windows run much faster.

One part of this video tutorial shows you how to disable services and startup items you don't need and enhance system performance.

The autor recommends to download TweakUI: Tweak UI is another useful tweaking software made by microsoft. Open it in C:\windows\system32\tweakui.exe

This how to video, shows you how to change IP Address using Broadband and Linksys Router.

change IP Address using Broadband and Linksys Router video.

SQL Server 2005 - How to get a list of Databases and DB Files.

This is a how to video that shows you how to get a list of Databases and DB Files using SQL Server 2005. Hope this can help you :-)

SQL Server 2005 - How to get a list of Databases and DB Files video.

This is a beginners guide to the Unix and Linux operating system. Some simple tutorials which cover the basics of UNIX / Linux commands. Unix and Linux operating systems are very popular on Webhosting companies and other that work with Internet Servers, Mail Servers etc. Is something that all system administrators should know.

CHAP0.
- What is UNIX?
- Files and processes on UNIX
- UNIX The Directory Structure
- Starting an UNIX terminal

CHAP1.
- Listing files and directories on UNIX
- Making Directories on UNIX
- Changing to a different Directory on UNIX
- The directories . and .. on UNIX
- Pathnames
- More about home directories and pathnames on UNIX

CHAP2.
- Copying Files on UNIX
- Moving Files on UNIX
- Removing Files and directories on UNIX
- Displaying the contents of a file on the screen on UNIX
- Searching the contents of a file on UNIX

CHAP3.
- Redirection on UNIX
- Redirecting the Output on UNIX
- Redirecting the Input on UNIX
- Pipes

CHAP4.
- Wildcards
- Filename Conventions
- Getting Help

CHAP5.
- File system security (access rights) on UNIX
- Changing access rights on UNIX
- Processes and Jobs on UNIX
- Listing suspended and background processes on UNIX
- Killing a process on UNIX

CHAP6.
- Other Useful UNIX commands

CHAP7.
- Compiling UNIX software packages
- Download source code
- Extracting source code
- Configuring and creating the Makefile
- Building the package
- Running the software
- Stripping unnecessary code

CHAP8.
- UNIX variables
- Environment variables
- Shell variables on UNIX
- Using and setting variables

Access to Tutorial

SQL Server 2005 is used for business-critical applications. This video will show you methodologies to help you efficiently use allocated disk space for enterprise storage and production environments.

If you use SQL Server 2005, this video will help you to optimize your Disk usage.

SQL Server 2005 Disk Optimization Video.

Maximize SQL Server Performance with SQL Tuning Video will help you to understand Microsoft tuning techniques. It teachs tips and tricks for making queries perform better, and how to use tools to tune SQL.

Maximize SQL Server Performance with SQL Tuning Video

This video is a SQL Server 2005 installation tutorial. It will show how to install SQL Server 2005 Express and the SQL Server Management Studio. Good webhosting companies should have this kind of stuff for SQL hosting :-)

SQL Server 2005 installation tutorial video

This is a curious video that shows PlayStation 3 running Windows XP from linux!
Windows XP runs in an emulation mode from linux kernel on PlayStation 3 :-)

PlayStation 3 running Windows XP video:

This video shows you how to run Fedora Core 5 on the Playstation 3. Enjoy :-)

Fedora Core 5 on the Playstation 3 Video

First of all don't forget to keep your server patched.

# apt-get update
# apt-get upgrade

Three Vulnerabilities on Firefly Media Server ( mt-daapd DAAP audio server).

1. HTTP header enables a heap buffer overflow, potentially enabling the execution of arbitrary code.

2. Format string vulnerabilities in debug logging within the authentication of XML-RPC requests could enable the execution of arbitrary code.

3. An integer overflow weakness in the handling of HTTP POST variables could allow a heap buffer overflow and potentially arbitrary code execution.

You should consider to secure your system :-)

This information is helpful for hosting companies that want to run PHP 4 & 5 on the same cPanel server. After this, Hosting costumers / cPanel users should choose what version of PHP will they use on theirs scripts.

You should consider some implications on your server performance, but webhosts are using because they don't need two server to run the different PHP versions for different costumers.

How to run PHP 4 and 5 on the same Cpanel server

1. Login to you cPanel server as root using ssh

2. Check the compiler and remove and re-create cpphpbuild directory

# /scripts/checkccompiler
# rm -rf /home/cpphpbuild
# mkdir /home/cpphpbuild
# cd /home/cpphpbuild

3. Download PHP5 and extract it

# wget http://us2.php.net/get/php-5.2.4.tar.gz/from/this/mirror
# tar zfx php-5.2.4.tar.gz
# cd php-5.2.4

4. Download, build and install php5.gen.cpanel

echo “#define HAVE_SENDMAIL 1″ >> /home/cpphpbuild/php-5.2.4/main/php_config.h
# wget http://www.elix.us/tutorials/php5.gen.cpanel
# chmod 700 php5.gen.cpanel
# ./php5.gen.cpanel
# make
# make install

5. Now you should move the files and finish the configuration

# cp -f /usr/local/php5/bin/php5 /usr/local/cpanel/cgi-sys/php5
# chown root:wheel /usr/local/cpanel/cgi-sys/php5 # cp -p /home/cpphpbuild/php-5.2.4/php.ini-recommended /usr/local/php5/lib/php.ini
# chown root.root /usr/local/php5/lib/php.ini
# chmod 644 /usr/local/php5/lib/php.ini
# echo “cgi.fix_pathinfo = 1 ; needed for CGI/FastCGI mode” >> /usr/local/php5/lib/php.ini

6. Configure httpd.conf file, save and exit.

# nano /usr/local/apache/conf/httpd.conf

Find the section index.php5 that is before index.php4 and add after “AddType application/x-httpd-php .phtml”

Action application/x-httpd-php5 “/cgi-sys/php5″
AddHandler application/x-httpd-php5 .php5

7. Restart apache service

# service httpd restart

Now you should inform you webhosting costumers that they should use the extension .php5 if they want to use PHP5 on theirs scripts, all the other php extensions will be parsed by php4 instllation.

Credits: http://forums.defenderhosting.com/showthread.php?t=2103 (some information taken).