Install Multipath on Debian Server Rumi, November 1, 2020 Note: This installation is tested on Debian 10 (Buster) edition. It might work for other versions of Debian as well. DMM Setup Overview DM-Multipath includes compiled-in default settings that are suitable for common multipath configurations. Setting up DM-multipath is often a simple procedure. The basic procedure for configuring your system… Continue Reading
Install PHP 7.4 / 7.3 / 7.2 / 7.1 on Debian 10 / Debian 9 Rumi, October 26, 2020October 26, 2020 Add PHP Repository SURY, a third-party repository which offers PHP 7.4 / 7.3 / 7.2 / 7.1 for Debian operating system. By default, Debian 10 ships PHP v7.3. So, you can either install PHP v7.3 from Debian repository or SURY repository. Skip this section if you want to install PHP… Continue Reading
Multiple or Two Default Gateways on One System Rumi, October 26, 2020 Problem Description You have built two or more network cards into one Linux system and each of these cards has its own default gateway. By default, you can only have one default gateway on a system. The case described would lead to asynchronous routing, whereby the router would reject the… Continue Reading
Install LAMP on CentOS 7 with PHP 5.4/7.0/7.1/7.2/7.3/7.4 Rumi, October 26, 2020 Preliminary Note In this tutorial, I use the hostname server1.example.com with the IP p 192.168.0.100. These settings might differ for you, so you have to replace them where appropriate. I will add the EPEL repo here to install latest phpMyAdmin as follows: rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY* yum -y install epel-release To edit files on… Continue Reading
Add Static Route on specific interface from Windows OS Rumi, October 6, 2020 Find out the Interface ID on which you need to apply your static route- netsh interface ipv4 show interfaces It’ll look something similar below- And now apply your static route- route add 172.16.222.0 mask 255.255.255.0 172.16.221.193 IF 20 Continue Reading
Permanently add Static Route in Linux Rumi, September 4, 2020September 4, 2020 Static routing is the process of manually entering the routes to the routing table to reach a particular destination. Basically two commands are used in Linux to add routes. The first command is the old traditional route add and second is the IP route command. Earlier we learned how to… Continue Reading
Add Geolocation to Graylog 2 Rumi, August 16, 2020 The Graylog Map Widget is the plugin providing geolocation capabilities to Graylog. The plugin is compatible with Graylog 2.0.0 and higher, and it is installed by default, although some configuration is still required on your side. This section explains how to configure the plugin in detail. In case you need to reinstall the… Continue Reading
Installation Bashtop an upgraded CLI system reporting interface from Top or Htop Rumi, August 15, 2020 Install Bashtop Resource Monitor on Ubuntu You can use PPA repository for Ubuntu Linux installations: sudo add-apt-repository ppa:bashtop-monitor/bashtop sudo apt update sudo apt install bashtop Install Bashtop Resource Monitor on Debian For Debian and its based distributions, used the commands below: Continue Reading
Revoking Lets Encrypt Certificate properly Rumi, August 14, 2020 When you want to learn how to revoke Let’s Encrypt SSL/TLS certificates, follow the steps below: Step 1: Validate Certificate file Before you revoke a certificate, you’ll want to validate that the correct certificates and key file you’re revoking.. since there is no reversal.. Once a certificate is revoked, it… Continue Reading
Fix Proxmox (PVE) “can’t lock file ‘/var/lock/qemu-server/lock-xxx.conf’ – got timeout” (Proxmox can’t shutdown/stop virtual machine) (Proxmox kill/force stop virtual machine) Rumi, August 14, 2020 The Issue When trying to “Stop” or “Shutdown” virtual machine from Proxmox (PVE) web gui, the “Cluster log” shows end task UPID:pve:xxxxxxxx:xxxxxxxx:xxxxxxx:qmstop:xxx:root@pam: can’t lock file ‘/var/lock/qemu-server/lock-xxx.conf’ -got timeout end task UPID:pve:xxxxxxxx:xxxxxxxx:xxxxxxx:qmreboot:xxx:root@pam: VM quit/powerdown failed The Fix We can manually delete the lock from following path /run/lock/qemu-server # The file will… Continue Reading