While installing MongoDB on a server we were greeted with a warning message “vm.max_map_count is too low” By default, Linux will restrict the maximum number of memory maps per process to 65530 on Rocky Linux 8. While this may be…
Today we’ll learn how to find which version of Ubuntu you’re running. To do this, launch a terminal window and issue the following at the terminal: lsb_release -a The terminal window will throw back the version of Ubuntu currently installed,…
Samba is a free software re-implementation of the SMB networking protocol, and was originally developed by Andrew Tridgell. Samba provides file and print services for various Microsoft Windows clients and can integrate with a Microsoft Windows One of our shares…
We’ll be looking at how to install the Linux command killall in this article. Killall send’s a signal to, if not explicitly specified, terminate all the processes with the given name. CentOS used to ship with killall out of the…
Today we’ll look into repairing a crashed WordPress database table. The error message could appear in one of many ways, some of them below: [20-Oct-2019 15:28:18 UTC] WordPress database error Table ‘wp_options’ is marked as crashed and should be repaired…
We’ll be looking into how to install Node.js on Ubuntu versions 16.04 LTS, 18.04 LTS and 19.04. We’ll install Node.js with NVM (Node Version Manager). This lets us install any version of Node.js and then switch between them with one command.…
Today we’ll be looking at how to install the GeoIP module on Ubuntu 16.04 LTS, 18.04 LTS and 19.04 for NGINX. You may come across an error like the following while trying to compile/install Nginx from source: ./configure: error: the…
Today we’ll be looking at how to install Ruby and RubyGems on Ubuntu 18.04 LTS and Ubuntu 19.04. The installation steps listed in this article will work for both versions of Ubuntu, 18.04 LTS and 19.04. A little bit about…
Today we’ll look at how to create a new database in MongoDB. Connect to mongod via the following line, replace your credentials mongo -u ‘username’ -p ‘password’ –authenticationDatabase ‘admin’ If you’re successfully authenticated then you’ll see the following prompt: To…
Has an SSH connection taken too long to return the password prompt? There are two possible fixes to it. There are two possible ways to fix this, First, disable Reverse DNS lookups on SSH connections on the target machine. Edit…