This tutorial demonstrates how to find and deal with programs opening network ports on your Linux system. In our example below, the TCP port 6667 is open. This port is usually used for IRC servers. If you see this port Continue reading Find programs listening on network ports and removing them
On-line device verification is not enabled for resources by default. To enable it, add the following lines to your resource configuration in /etc/drbd.conf: resource resource syncer { verify-alg algorithm; } … } algorithm may be any message digest algorithm supported Continue reading DRBD online verification
This page describes how to integrate Nginx with JIRA, utilising Nginx as a reverse-proxy over HTTP. Configurin Nginx: # force HTTP to HTTPS – /etc/nginx/conf.d/nonssl.conf server { listen 80; server_name jira.itsol.biz; access_log off; return 301 https://$server_name$request_uri; Continue reading Integratin Atlassian JIRA with Nginx and SSL
The server is SQL 2005 sp2, and it’s acting as a main server for one application. Everything is working fine, and the onliest problem I have is that MSDBLog file is growing. The MSDB dB is currently about 100M and Continue reading MS SQL system database MSDB log file is huge
The ARP timeouts are vendor dependent and can very drastically from one vendor to another. Here is some information about ARP timeouts. Cisco 3750 switch # show interfaces vlan 1 Vlan1 is up, line protocol is down Hardware is EtherSVI, Continue reading ARP Timeout Value for Cisco 3750, Linux and Windows
In addition, VMware Tools automatically updates the guest’s time to match the host operating system’s time in a few other cases where the guest can be expected to have lost a large amount of time (even if periodic time synchronization Continue reading VMware time update problem
In the following article I have summarized some steps and hints to set-up a MySQL active/passive fail-over Cluster also sometimes called MySQL HA. With such a set-up you can achieve a 99.99% (4×9) HA set-up for MySQL (52 minutes downtime Continue reading MySQL HA Cluster – DRBD and Heartbeat
This HowTo will demonstrate how you can run a program on one computer but have it display on another. For this example we’ll assume you have a server with an IP address of “192.168.0.1″ and a desktop computer with an Continue reading Running Remote X Applications
This tutorial will take you through creating an LVM snapshot. Suppose you have a NAS serving files for a company that operates 24 hours per day. There is no time you can stop the servers to run backups. Using LVM Continue reading Using LVM Snapshots – CentOS Short How To
Linux allows administrators to bind multiple network interfaces together into a single channel using the bonding kernel module and a special network interface called a channel bonding interface. Channel bonding enables two or more network interfaces to act as one, simultaneously increasing the Continue reading Bounding network cards