Author name: Hasan Altın

Cisco Commands

I’ve collected some useful command lists of Cisco and wanted publishing on my blog. This article will be updated when I see some new commands related to Cisco. Changing switch hostname Switch(config)#hostname SW1 Configuring passwords SW1(config)#enable secret cisco SW1(config)#enable password notcisco Securing console port SW1(config)#line con 0 SW1(config-line)#password cisco SW1(config-line)#login Securing terminal lines SW1(config)#line vty

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How to install CentOS

I had mentioned on my previous article how to get CentOS 7 Installation Media and it was so simple to get the iso file and in this article, we will see how to install CentOS that we downloaded the installation media. If you want to download CentOS click here. Generally you will see the pictures and you will

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Connection to database ‘zabbix’ failed: [2002]

Hello IT fellas, When I came to the office today, I saw a warning on our monitoring system that said database error, connection refused. You can see the mentioned picture below. Then I checked out the logs of the Zabbix which is given error below. [root@appliance ~]# tail -f /var/log/zabbix/zabbix_server.log 1144:20210531:082544.703 [Z3001] connection to database ‘zabbix’ failed:

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