This free SSH testing tool checks the configuration of given server accessible over internet. We don’t ask you for any login or password, this service only returns information available during SSH handshake – notably supported encryption and MAC algorithms, and an overview of offered server public keys.
An Introduction to Linux Virtual Interfaces: Tunnels
Linux has supported many kinds of tunnels, but new users may be confused by their differences and unsure which one is best suited for a given use case. In this article, I will give a brief introduction for commonly used tunnel interfaces in the Linux kernel. There is no code analysis, only a brief introduction…
Running Your Business on Linux (No, You Don’t Need Windows)
Believe it or not, my dear Linux friends, a lot of IT pros still believe they need Windows servers. They have this goofy idea that Active Directory, SharePoint, Exchange, Windows Server, SQL Server, and all the other members of the lardy malware vector family are the only proper business backends. They have this funny notion…
Download a World Wide website from the Internet to a local directory with HTTrack
HTTrack is an easy-to-use offline browser utility. It allows you to download a World Wide website from the Internet to a local directory, building recursively all directories, getting html, images, and other files from the server to your computer. HTTrack arranges the original site’s relative link-structure. Simply open a page of the “mirrored” website in…
How to collect system activity information on Debian GNU/Linux
Collect and report system activity information using sysstat a system performance tools for the Linux operating system
How to determine how long specified remote server or device was offline on Debian GNU/Linux
Create shell script to determine how long specified remote server or device was offline. It is not designed to substitute monitoring solution, but to determine how long it will take to reboot server or device. It is using convert seconds to human readable time code to display results.
How to turn off the system bell on Debian GNU/Linux
It is very annoying to hear loud beeps at home especially at night or when listening to music. To turn off the system bell just follow a couple of steps below and enjoy pure silence.
Debian 10 “Buster” released (July 6, 2019)
After 25 months of development the Debian project is proud to present its new stable version 10 (code name buster), which will be supported for the next 5 years thanks to the combined work of the Debian Security team and of the Debian Long Term Support team. Debian 10 buster ships with several desktop applications…
30 GNU/Linux System Monitoring Tools Every SysAdmin Should Know
Need to monitor Linux server performance? Try these built-in commands and a few add-on tools. Most distributions come with tons of Linux monitoring tools. These tools provide metrics which can be used to get information about system activities. You can use these tools to find the possible causes of a performance problem. The commands discussed…
Recovering damaged CDs or DVDs with GNU/Linux
On Windows there are a slew of file recovery tools which will peer intently at an optical disc, retrying until they recover every possible file. The leading tool is probably Isobuster, but there are dozens of candidates for the title. There are few automated (or even user-friendly) data recovery tools on Linux or UNIX(tm) platforms,…