Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 14/02/2017 · Last modified 17/06/2017
Linux processes communicates with socket between each other. There are tools to list, resolve, provide information about sockets. Ss is one of them. Netstat command can list and resolve the sockets too but it is slow because there is a lot of sockets. Ss gets information about socket from directly...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 11/02/2017 · Last modified 17/06/2017
Monitoring Linux servers is important part of the system administration. There are a lot of way and tools to monitor Linux servers. System Activity Reporter or simply sar is one of the most popular and useful tool. Sar can save system stats from various subsystems like disk, CPU, memory, network...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 11/02/2017 · Last modified 17/06/2017
Linux have a lot of different system metrics and performance monitoring tools. Sysstats provide a bunch of tools for monitoring purposes. This project is maintained by Sebastien Godard. These tool collects and reports system activity information about different aspects of the system like CPU, network, disk, tape, io etc. Sysstat...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 07/02/2017 · Last modified 24/10/2017
We have previously looked the command kill to kill process accordin to their names, owners etc. But using only kill command to kill a proccess according to its owner is done with supportive commands like grep. In this tutorial we will look more compact and all in one command killall . Syntax...
Blog / CCNA / CCNP / Network / Switching
by İsmail Baydan · Published 01/02/2017 · Last modified 14/03/2018
DHCP stands for Dynamic Host Configuration Protocol. As its name suggests DHCP is used to provide configuration like Ip Address, Network Mask, Dns, Proxy, Bootp, Default Gateway etc. to the host. But the most know and popular usage is distributing IP address. There are broad range of DHCP usage scenarios....
Blog / CCNA / Management / Network / Routing / Security
by İsmail Baydan · Published 31/01/2017 · Last modified 23/03/2018
Checkpoint, Palo Alto, Cisco ACS and others, all of them are enterprise, popular and good firewalls. But all of them requires some price to pay. Are there any free alternative to these enterprise firewalls? Yes there are a lot but most of them is not a competitor for them. Pfsense...
Blog / CentOS / Debian / Fedora / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 10/01/2017 · Last modified 12/03/2017
Getting information about system and hardware is important part of System Administration job. There are a lot of different tools those provides information about system and hardware. In this post we will look how to get CPU, memory, disk, bus, usb, disk … information simple from a Linux system. Print...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 10/12/2016 · Last modified 25/03/2018
Operating systems are bed for applications. These applications are executed as processes. Process start, waits and ends. Through their life time their complete given jobs. In this guide we will look how to kill Linux process in different ways. List Process To kill process we need to get information about...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 09/12/2016 · Last modified 16/10/2017
Linux and Unix are two popular operating systems. Reality is Unix is predecessor of Linux and their share a lot of things those are similar. But there are different things between them too. In this post we will look similarities and differences in both operating systems. Price and Cost Linux:...
Unix operating system is the root of multi tasking operating systems. We can call Unix as first modern operating system that provides advanced operating system features like kernel,development tool, user and admin commands, multi tasking etc. Unix operating system is developed 1970’s in Bell Labs research center by Ken Thompson,...
