CentOS7 by default uses Firewalld as network filter. It’s a kind of add-on over Iptables. According to its description it has quite wide functionality and usability. But I prefer to work with Iptables rules directly. It’s more understandable for me when I write all rules by myself. But it is individual for each, I can’t bring […]
Extending LVM volume on CentOS 7
I had a lack of free disk space on root LVM volume on one of my test servers. [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 1.7G 1.2G 516M 71% / And as long as I use LVM on the server I decided just to extend existing volume instead of creating […]
FreePBX install on CentOS 7
FreePBX could be installed with pre-built distribution from Sangoma corp., which could be downloaded and installed pretty easy and quickly. But what if you already have installed server or you can’t use 3d-party distribution to install the server. FreePBX site has nice instructions on how to install Asterisk and FreePBX on existing server based on […]