Servers

nginx- Lightweight, high performance web server/reverse proxy and e-mail (IMAP/POP3) proxy

Nginx is a free, open-source,Â high-performance HTTP server and reverseÂ proxy, as well as an IMAP/POP3Â proxy server.Â Igor Sysoev started development ofÂ Nginx in 2002, with the first public release in 2004.Â Nginx now hosts nearlyÂ 6.55% (13.5M) of all domains worldwide. Nginx is known for itsÂ high performance, stability, rich feature set, simple configuration, and low resource consumption. Nginx is one [...]

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Announcing Cisco UCS C-Series Rack-mount Servers

More: continued here

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How to Install mytop in Linux

MySQL is one of the most important programs on a server, unfortunatly it is also pretty resource intensive. One a server it is not uncommon for a single user or even a query to take up the bulk of the servers cpu cycles. Mytop is a very useful program to see what queries a server [...]

MySQL cpu cycles, linux, mytop, perl modules, servers, 0

Can Log Server receive data from multiple Filtering Services – Websense

Log Server does not differentiate where a request is coming from, so it will successfully log all requests it receives regardless of source.Â However, all Log Server data goes into one Log Database.Â Therefore, note that your Websense installation must be configured as follows: One Log Server per Policy Server One Log Server per Log [...]

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How to configure multiple servers for use with Websense software

Policy Server stores Websense Enterprise configuration data (including filtering policy settings). Policy Server communicates configuration data to Filtering Service. One or more Policy Servers can be configured from the same installation of Websense Manager. Each Policy Server must be added and configured separately. Policy Server stores Websense Enterprise configuration data (including filtering policy settings). Policy [...]

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How to Run Remote Commands with SSH

The sshÂ program canÂ Â be used for monitoring remote hots. The system admin can also execute commands from his desktop which can be executed at remote servers. This is a cool facility of ssh. We can do much more on SSH. root@admin:~ # ssh root@www ‘df -h’ Filesystem Size Used Avail Use% Mounted on /dev/ubda 3.5G 2.1G [...]

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How to Use Nslookup to Determine the Version of BIND That Is Running on a Remote BIND DNS Server

BIND is an implementation of a DNS server. If you troubleshoot interoperability issues with BIND servers, you may find it useful to determine what version of BIND each server is running. To determine the version of BIND that is running on the remote BIND DNS server: Â From the command line on a Windows 2000-based [...]

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What is SMTP tar pitting? How do I enable the tar pit feature in Windows Server 2003

Tar pitting is the practice of deliberately inserting a delay into certain SMTP communications that are associated with spam or with other unwanted traffic. To be effective, these kinds of communications typically rely on generating a high volume of traffic. By slowing an SMTP conversation, you can dramatically reduce the rate at which automated spam [...]

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How to Install Java Runtime Environment – Linux

You can download SUN’s latest Java JDKs at: http://java.sun.com/javase/downloads/index.jsp. For my 64-bit Debian system I selected the 64-bit JDK multiplatform binary for Linux: jdk-6u10-linux-x64.bin. I downloaded the binary file to /tmp and installed it as follows as root: # mkdir -p /usr/java # cd /usr/java # # chmod 700 /tmp/jdk-6u10-linux-x64.bin # /tmp/jdk-6u10-linux-x64.bin … creating: jdk1.6.0_10/ [...]

Linux build, create, install, java, linux, roots, servers, system, 0

How to set up time server in linux

The Network Time Protocol (NTP) is a protocol for synchronizing the clocks of computerÂ systems over packet-switched, variable-latency data networks. NTP uses UDP port 123 as its transport layer. It is designed particularly to resist the effects of variable latency (Jitter).Â Please also referÂ How to Install and Configure The Network Time Protocol How to Sync [...]

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How to access your server via SSH

If you are unfamiliar with SSH this is ok. This is a simple explanation to get you to a command prompt on your new server or existing server. Simply download a program called “putty.exe” if you are using Windows. If you are using MAC you will need to jump in to the shell and follow [...]

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How to Install VNC on Centos

VNC is used to display an X windows session running on another computer. Unlike a remote X connection, the xserver is running on the remote computer, not on your local workstation. Your workstation ( Linux or Windows ) is only displaying a copy of the display ( real or virtual ) that is running on [...]

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How to Monitor MySQL’s performance

Here are some ideas, how you can monitor the database performance of your MySQL installation. Monitoring is always an iterative and continuous process. You need to learn what patterns are OK for your database and what are the signs of slight problems or even dangerous situations. Below are the main items you can use to [...]

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How to set up a basic email server with postfix and Dovecot

This article uses postfix as the mail transport agent (MTA), as opposed to sendmail, the default MTA for CentOS. Dovecot is used to allow users to access their email by either imap or pop protocols. We assume a domain name of example.com which should be changed by the reader and can be either a real [...]

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How to Use Nslookup to query Domain Name System

nslookup is a computer program used in Windows and Unix to query Domain Name System (DNS) servers to find DNS details, including IP addresses of a particular computer, MX records for a domain and the NS servers of a domain. The name nslookup means “name server lookup”. The most common version of the program is [...]

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