Brain's Workbench
Lately I needed an update of PHP (7.2 to 7.4) on my WHMCS CentOS 7 built box- here’re the process that I followed. But before that, I’m sharing my original post on setting up WHMCS on CentOS 7
Since I used remi repository to install version 7.2, I’ll be doing the same as well-
root@portal:~# yum-config-manager --enable remi-php74 root@portal:~# yum update
Now install PHP 7.4 with all necessary modules with the command below-
Was just playing around. It’s a great home entertainment tool indeed.
Method-1: Creating repository and using Yum
To enable the Plex repository open your text editor and create a new YUM repository configuration file named plex.repo in /etc/yum.repos.d/ directory:
[PlexRepo] name=PlexRepo baseurl=https://downloads.plex.tv/repo/rpm/$basearch/ enabled=1 gpgkey=https://downloads.plex.tv/plex-keys/PlexSign.key gpgcheck=1
Method-2: Installation using RPM
download the package for your Linux distro. It is much easier to do this by simply coping the download link location with right click and then you can run:
$ sudo rpm -ivh https://downloads.plex.tv/plex-media-server/1.13.8.5395-10d48da0d/plexmediaserver-1.13.8.5395-10d48da0d.x86_64.rpm
Alternatively, you can download the package on your system with wget command as shown.
$ wget https://downloads.plex.tv/plex-media-server/1.13.8.5395-10d48da0d/plexmediaserver-1.13.8.5395-10d48da0d.x86_64.rpm
If you’ve used install base using yum repo- you now need to install it, otherwise if you’re with RPM installation, you already have plex installed.
Prerequisites:
XRDP is an open-source version of the Microsoft Remote desktop Protocol server. It enables operating systems besides Microsoft Windows to offer a fully functional remote desktop experience. The prerequisites for the installation include:
Before all else, install Gnome GUI on CentOS 7 or RHEL 7.
Then install and configure EPEL repository with this commandrpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
Below is how to install and configure Fail2Ban for Zimbra. In this guidance, I use CentOS. Please adjust python-pip version if using another OS
1. Install pip
yum install python3-pip
2. Install dependencies required by Fail2Ban
pip3 install pyinotify pip3 install dnspython
3. Download and extract Fail2Ban
cd /tmp/ wget -c https://github.com/fail2ban/fail2ban/archive/0.9.4.tar.gz
4. Install Fail2Ban
tar -xvf 0.9.4.tar.gz cd fail2ban-0.9.4 python3 setup.py install
5. Copy Fail2Ban service to systemd
cp files/fail2ban.service /usr/lib/systemd/system/
6. Adjust bin location on Fail2Ban service
vi /usr/lib/systemd/system/fail2ban.service
Adjust the following lines. Change /usr/bin become /usr/local/bin
# Generated by iptables-save v1.3.5 on Tue Oct 28 23:57:58 2014 *filter :INPUT ACCEPT [2590:547311] :FORWARD ACCEPT [11426:731834] :OUTPUT ACCEPT [3989:328501] -A INPUT -i eth0 -j ACCEPT COMMIT # Completed on Tue Oct 28 23:57:58 2014 # Generated by iptables-save v1.3.5 on Tue Oct 28 23:57:58 2014 *mangle :PREROUTING ACCEPT [24964:3178001] :INPUT ACCEPT [9150:1450474] :FORWARD ACCEPT [11426:731834] :OUTPUT ACCEPT [4655:374193] :POSTROUTING ACCEPT [15415:1060335] COMMIT # Completed on Tue Oct 28 23:57:58 2014 # Generated by iptables-save v1.3.5 on Tue Oct 28 23:57:58 2014 *nat :PREROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A PREROUTING -m state -i eth0 --state RELATED,ESTABLISHED -j ACCEPT -A PREROUTING -p tcp -m tcp -d 123.45.67.89 --dport 80 -j DNAT --to-destination 172.16.5.113 -A POSTROUTING -j MASQUERADE COMMIT # Completed on Tue Oct 28 23:57:58 2014
Install Module
CentOS 7 comes with bridging module loaded on system boot by default. Use the following command to verify whether the module is loaded or not.
# modinfo bridge filename: /lib/modules/3.10.0-327.el7.x86_64/kernel/net/bridge/bridge.ko alias: rtnl-link-bridge version: 2.3 license: GPL rhelversion: 7.2 srcversion: 905847C53FF43DEFAA0EB3C depends: stp,llc intree: Y vermagic: 3.10.0-327.el7.x86_64 SMP mod_unload modversions signer: CentOS Linux kernel signing key sig_key: 79:AD:88:6A:11:3C:A0:22:35:26:33:6C:0F:82:5B:8A:94:29:6A:B3 sig_hashalgo: sha256
If the module is not loaded, you can load it using the following command.
Step 1. First, you need to enable the EPEL repository on your system.
yum install epel-release yum -y update
Step 2. Installing Transmission on CentOS 7.
Just run the following command to install Transmission:
yum install transmission-cli transmission-common transmission-daemon
Once complete, you can verify Transmission is installed by running the below command:
systemctl start transmission-daemon.service systemctl stop transmission-daemon.service
Step 3. Configuration Transmission.
Edit the transmission settings.json config file:
You can do this in 2 methods- however, IMHO method-2 usually works great for me.
Method-1
Step 1: Verify the Wheel Group is Enabled
Your CentOS 7 installation may or may not have the wheel group enabled. Open the configuration file by entering the command:
visudo
Scroll through the configuration file until you see the following entry:
## Allows people in group wheel to run all commands # %wheel ALL=(ALL) ALL
If the second line begins with the # sign, it has been disabled and marked as a comment. Just delete the # sign at the beginning of the second line so it looks like the following:
%wheel ALL=(ALL) ALL
Then save the file and exit the editor.
To display the current version of Linux (kernel) running on your system, run this command.
# uname -sr
Linux 3.10.0-327.10.1.el7.x86_64
List All Installed Kernels on System
You can list all kernel images installed on your system like this.
# rpm -q kernel
kernel-3.10.0-229.el7.x86_64 kernel-3.10.0-229.14.1.el7.x86_64 kernel-3.10.0-327.3.1.el7.x86_64 kernel-3.10.0-327.10.1.el7.x86_64
Removing Old/Unused Kernels on CentOS/RHEL
You need to install yum-utils, which is an assortment of utilities that integrate with yum to make it more powerful and easier to use, by extending its original features in several different ways.
Install the Operating System
Boot from the USB flash drive and select Install CentOS 7
When the welcome screen of the CentOS installer appears, choose your language and just click on Continue