06
Jun
2026
Anurag Sharma
In today’s interconnected world, server security is more important than ever. Cybercriminals continuously scan the internet for vulnerable servers, attempting to gain unauthorized access through brute force attacks, credential stuffing, automated bots, and other malicious techniques. To stay ahead of these threats, server administrators need reliable security tools that can detect and block suspicious activity […]
06
Jun
2026
BaseZap
Overview While starting a Virtuozzo/OpenVZ container, administrators may encounter an error indicating filesystem corruption within the ploop disk image. The container fails to start because the filesystem check (e2fsck) detects inconsistencies that require manual intervention. Error Message When attempting to start the container: vzctl start 38cf8886-ef92-40ad-882b-24319d5d3b The following error is displayed: Starting Container … Mount […]
06
Jun
2026
BaseZap
Problem After rebooting a Virtuozzo 7 host node, all containers failed to start with the following error: vzctl start 2030 Starting Container … Mount image: /vz/private/2030/root.hdd Container is mounted Setting permissions for image=/vz/private/2030/root.hdd vcmmd: failed to register Container: Failed to connect to VCMMD service vcmmd: failed to unregister Container: Failed to connect to VCMMD service […]
09
Jun
2024
Sudhanshu Shekhar
The System Activity Reporter, or SAR tool, is a powerful monitoring tool in Linux that allows you to collect and analyze historical system performance data. It is part of the sysstat package and provides valuable insights into CPU usage, memory utilization, disk I/O, network traffic, and more. In this article, we’ll walk through how to […]
10
May
2024
Sudhanshu Shekhar
As an AlmaLinux server administrator, managing network ports is crucial for ensuring the security and smooth operation of your services. AlmaLinux comes with various firewall management tools, such as FirewallD, Iptables, and ConfigServer Security & Firewall (CSF). In this comprehensive guide, we’ll walk you through the steps to open and close ports using these firewall […]
07
May
2024
Sudhanshu Shekhar
AlmaLinux is a free and open source Linux distribution that provides a stable and secure platform for servers and workstations. It is a community-driven project that aims to fill the gap left by the discontinuation of CentOS. AlmaLinux 8 and 9 are based on Red Hat Enterprise Linux (RHEL) 8 and 9 respectively, ensuring binary […]
26
Apr
2024
Sudhanshu Shekhar
Virsh Useful Commands for Managing Virtual Machines Introduction Virsh is a powerful command-line utility for managing virtual machines (VMs) that are controlled by libvirt, the virtualization management library. It provides a wide range of commands to create, edit, monitor, and control VMs running on hypervisors like KVM, Xen, and more. In this blog post, we’ll […]
14
Sep
2021
BaseZap
One of the major drawback in using ploop filesystem in the virtualisation (Virtuozzo) is that the containers use more than actual use space. This keeps on increasing with time too. The space used by the container on the node disk is way more then actual data size inside container used. To reclaim the space, you […]
23
Aug
2021
BaseZap
This is a guide to know on how to check your current and past server load (cpu load) for debugging purpose. System Activity Reporter (SAR) is an important tool which is used by the system admins for this in order to find out server load along with status of various metrics at different interval of […]
08
Jul
2021
BaseZap
To add support of the fantastic tool wp-cli for all the users on the server, be it cyberpanel or cPanel or some other webhost panel you are using, you can use the following solution : Single Line code : wget -O /usr/local/bin/wp https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar; chmod +x /usr/local/bin/wp; touch /etc/profile.d/add_user_local_bin.sh; echo ‘PATH=$PATH:/usr/local/bin’ >> /etc/profile.d/add_user_local_bin.sh; Step by step […]
