Howtos / Articles

Change the User Agent in Curl

The Curl application is a tool to transfer data from a server using a number of different protocols. The main protocols that are generally used are HTTP and HTTPS. There will be times when you need to download a web page, emulating a different browser. Some web sites may output different html code depending on the browser being used to request the page. By modifying the User Agent header on the http/https request, you can tell the server what browser…

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Get The Active DNS Servers On Linux

The Domain Name System (DNS for short) is one of the most important parts of the internet infrastructure. It converts the easy to remember domain names, into IP (and IPv6) addresses, that aren’t so friendly to the end user. Regardless of the distribution of Linux that you are using (such as Ubuntu, CentOS, Debian, Arch, Redhat, etc), the process of determining what DNS servers are currently being used for domain name resolution is the same. To determine what DNS servers…

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OpenMediaVault Web GUI default username and password

If you come across a server running OpenMediaVault, and you aren’t sure what the web GUI password is, give the following a try, as this is the default username and password for OpenMediaVault. Username: admin
Password: openmediavault…

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adding persistent static routes on ubuntu

When you need to access networks located on a different network segment, you need to have a route set up so the PC knows how to get to the other network segment. This generally just points to your main gateway, but you may want to set up additional static routes, where you don’t want the traffic going through your main default gateway. To set up a static route on Ubuntu so that it automatically gets created every time the PC…

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Extract the public certificate and private key from a pfx file using OpenSSL

This guide will show you how to convert a .pfx certificate file into its separate public certificate and private key files. This can be useful if you want to export a certificate (in the pfx format) from a Windows server, and load it into Apache or Nginx for example, which requires a separate public certificate and private key file. In the examples below, the following files will be used: domain.name.pfx – This will be the PFX file containing the public…

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