Recent Articles

Collectl Examples - An Awesome Performance Analysis Tool in Linux

Collectl is a light-weight performance monitoring tool capable of reporting interactively as well as logging to disk. It reports statistics on CPU, disk, infiniband, lustre, memory, network, nfs, process, quadrics, slabs and more in easy to read format. Unlike most monitoring tools that either focus on a small set of statistics, format their output in […]

Find / Patch Shellshock Bash Bug in RedHat / CentOS, Fedora & Ubuntu

Stephane Schazelas has recently discovered a very serious security bug in GNU Bourne Again Shell (Bash) that allows attackers to exploit a machine by executing remote code. Shellshock (the name for this security bug) can cause serious problems to your system because it makes possible to trick bash into running a program that it wasn't […]

September 28, 2014 | By in NEWS, SECURITY | 1 Reply More

Monit - Monitor Linux Daemon, Filesystem, CPU , Files and Network

Monit is a small linux utility designed to manage and monitor processes, programs, filesystems, directories and files. You can have it run automatic maintenance and repair and can execute meaningful causal actions in error situations. You can use Monit to monitor files, directories and filesystems for changes, such as timestamps changes, checksum changes or size […]

Arptables - Manage ARP Packet Filter Rules with Examples

ARP stands for Address Resolution Protocol, it's a telecommunication protocol used for resolution of network layer addresses into link layer addresses, a critical function in multiple-access networks. In general ARP is used to convert an IP address to a physical address such as an Ethernet address (also known as a MAC address). arptables is similar […]

September 24, 2014 | By in LINUX HOWTO, SECURITY | Reply More

Sysdig - A Tool to Capture Linux System State and Activities

Sysdig is a tool that gives admins and developers unprecedented visibility into the behavior of their systems. The team that develops it wants to improve the way system-level monitoring and troubleshooting is done by offering a unified, coherent, and granular visibility into the storage, processing, network, and memory subsystems making it possible to create trace […]

September 22, 2014 | By in LINUX HOWTO, OPEN SOURCE TOOLS | Reply More

Install Iperf and Test Network Throughput,Speed/Other Statistics

Iperf is a network testing tool that can create TCP and UDP data connections and measure the throughput of a network that is carrying them. It supports tuning of various parameters related to timing, protocols, and buffers. For each test it reports the bandwidth, loss, and other parameters. The current version, sometimes referred to as […]

September 19, 2014 | By in LINUX HOWTO, MONITORING | Reply More

Install LEMP + WordPress on Ubuntu 14.04 for your Cloud/VPS

LEMP is an open-source software stack (its name is derived from the popular LAMP stack that stands from Linux Apache MySQL PHP) only that in this case Apache web server component is replaced with nginx (pronounced "engine x," providing the "E" in LEMP) to increase the ability of the server to scale in response to […]

September 15, 2014 | By in UBUNTU HOWTO, WEB SERVERS | Reply More