Blog
2019
BaseZap
[FIXED] Too many open files error on LiteSpeed Web Server
Website is crashing on traffic spike? Website facing 503 Service Unavailable error? Webserver throwing the following errors in the logs. [ERROR] [*:443] HttpListener::acceptConnection(): Accept failed:Too many open files! /usr/local/lsws/cachedata/priv/1/a/6/1a68a623c1d9ccbc: open() failed: Too many open files Such errors occur when open limits on the server are exhausted by the web server and other services. “Too many […]
2019
BaseZap
Guide to Block and Unblock IP Address in Linux
Want to block IP abusing your Server or the server is facing an abuse attack from a particular IP? Today, we will show you how we can block particular IP address and block IP on a particular Port. This guide will work on almost all Linux Distribution with iptables. iptables is a user-space utility program […]
2019
BaseZap
Guide to check Open Ports in Linux
Today, we will show you how you can check opened ports in your Linux System. There are certain reasons to keep a track of open ports on the server and block the access to some port which might be a security threat. We will use netstat command to list all the open ports which is […]
2019
BaseZap
Show Hidden dotfiles and folders in cPanel Filemanager
cPanel works on a Linux Server and dotfiles and folders are hidden. For some reason you want to see those files and also want to make changes. By default, these files and directories/folders are not visible in the cPanel. Today we will show you how you can show the hidden files and folders in your […]
2019
BaseZap
Learn about tmpfs, and it uses
Wondering what is tmpfs on your Linux Servers and want to know its use or function? In this guide we will share some basic information about tmpfs. tmpfs is a file system which keeps all files in virtual memory. tmpfs uses a combination of computer RAM and disk-based SWAP space to create a filesystem, such […]
2019
BaseZap
Check and Change current TimeZone in Debian and Ubuntu
Wondering about TimeZone of your Debian or Ubuntu Machine and want to change it? Let’s follow this small guide to check and change current TimeZone in Debian and Ubuntu. Requirements Root SSH Access to the Machine (Root Needed to change TimeZone) Procedure Check Current Date, Time and TimeZone in Debian/Ubuntu Check Date of your Machine […]
2019
BaseZap
Multitask in Linux Terminal using Screen Software Program
Looking on how to multitask in Linux terminal? Today we will show how you can use the Screen software program to multitask in Linux Terminal. Screen is a full-screen software program that can be used to multiplexes a physical console between several processes. It offers a user to open several separate terminal instances inside a one single […]
2019
zapbase
[cPanel] The installation process detected that the server was in runlevel 5.
The server must be in runlevel 3 before the installation can continue. This tutorial will help you in solving the above error which cPANEL installation by changing your OS runlevel 5 to runlevel 3. #systemctl get-default runlevel5.target Let’s check the current runlevel for our centos OS based server by running following command #systemctl get-defaultrunlevel5.target P.S […]
2019
BaseZap
Guide for letting memcached only listen on localhost
Are you concerned about the security while using memcached on your server with Railgun? There is a solution by letting memcached only listen on localhost i.e. 127.0.0.1 IP. Doing so, remote access is not possible with the memcached setup on your server. This will make your system one step ahead to security. This can be done with […]
2019
BaseZap
[SOLVED] cPanel License Update Failed
Purchased cPanel License and are unable to update the License on your VPS or Dedicated Server? License update could be failing due to improper Server Configuration like hostname of the server is not following FQDN i.e. Fully qualified domain name. The FQDN consists of two parts: the hostname and the domain name. For example, an FQDN for […]
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