Install Softether VPN Client on Linux Rumi, January 28, 2023January 28, 2023 Download and Install SoftEther VPN Client Download SoftEther VPN Client software from their official website (https://www.softether.org). Navigate to Download — > Download SoftEther VPN Click on Download SoftEther VPN link. Select Component : SoftEther VPN Client Select Platform : Linux Select CPU : Select the appropriate CPU from the Drop… Continue Reading
Import and Export Xen VM a.k.a XCP-NG Rumi, January 27, 2023 Print virtual machine list xe vm-list uuid ( RO) : 43dfac04-515e-7769-b2d2-444d4b7cb198 name-label ( RW): hk-zabbix-01 power-state ( RO): halted Check the mount disk Continue Reading
OCI Architecture Diagram Toolkits Rumi, January 27, 2023 Oracle Cloud Infrastructure (OCI) Architecture Diagram Toolkit in three formats: PowerPoint draw.io Visio Use these assets to draw custom architecture diagrams for your OCI implementation. Each of these formats contains OCI service icons and templates where possible. Examples and guidance on how to create diagrams for your specific cloud deployment… Continue Reading
Remove Old Unused Kernels in CentOS Rumi, January 26, 2023 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… Continue Reading
Zimbra Let’s Encrypt auto-renew SSL Rumi, January 26, 2023 Required for this script to work is certbot package installed on email server and sudo rights to add script in crontab. You can add script in crontab at a weekly run like this: 0 0 * * 0 root /path_to_script. #!/bin/bash #Set domain for renew (in format openthreat.ro) DOMAIN=”” certbot… Continue Reading
Setup Keepalived for VRRP instead of ucarp Rumi, January 26, 2023 I’ve the following setup: network-0 – 192.168.2.11 (real) network-1 – 192.168.2.12 (real) I want to add “network” as 192.168.2.10 as the floating address. I’ll need to do the following to both network-0 and network-1 Install keepalived Configure keepalived Start keepalived Set keepalived to start at boot. Continue Reading
Proxmox GUI webpage stuck on loading Rumi, January 8, 2023 Connection time out!!!! So boring nah? I can’t figure out where the problem is. It works and then couple of hours later I’d come back and it keeps on loading forever. SSH works fine, can SSH into containers as well. Just the GUI doesn’t work. Tried full upgrade. Checked for… Continue Reading
Zimbra Let’s Encrypt SSL Script Rumi, December 28, 2022 #!/bin/bash -x # SSL certificate installation in Zimbra # with SSL certificate provided by Let’s Encrypt (letsencrypt.org) # Check if running as root if [ “$(id -u)” != “0” ]; then echo “This script must be run as root” 1>&2 exit 1 fi read -p ‘letsencrypt_email [mail@server]: ‘ letsencrypt_email read… Continue Reading
Setup HAProxy Load Balancer for MariaDB Galera Cluster Rumi, December 28, 2022December 28, 2022 If you check the above test scenario and try to create DBs on any of the nodes, you would see that the data would automatically sync between the nodes. Which means Availability is achieved. Now to achieve high availability we will use HaProxy as the loadbalancer. Set up another VM… Continue Reading