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Search results for CLI Magic: OpenSSH + Bash

Unix+clones

CLI Magic: More on SSH

Post date: December 9, 2005, 01:12 Category: Network Views: 3701 Comments
Tutorial quote: We've covered SSH before in CLI Magic, but this week let's look at some additional SSH features that new users might not be aware of. For the purpose of this article, we'll be looking specifically at OpenSSH, but many of these features apply to other SSH variants as well.
Unix+clones

CLI Magic: OpenSSH + Bash

Post date: January 25, 2006, 20:01 Category: Network Views: 3613 Comments
Tutorial quote: As a system administrator, I have used OpenSSH's piping abilities more times than I can remember. The typical ssh call gets me access to systems for administration with a proven identity, but ssh is capable of so much more. In combination with bash's subshell invocation, OpenSSH can distribute the heavy work, reduce trace interference on a system under test, and make other "impossible" tasks possible. I've even used it to make Microsoft Windows remote administration easier.

In the examples below, I have tried to avoid GNU-specific idioms for tools which have non-GNU counterparts. This practice improves portability of shell scripts in heterogeneous environments.
CentOS

Chroot jail SFTP only OpenSSH 5.x

Post date: May 5, 2008, 00:05 Category: Security Views: 11192 Comments
Tutorial quote: This tutorial describes how to set up a chroot jail (SFTP only) to allow your users to ONLY use sftp (no ssh/bash/…), and keep them stuck inside their own home directory. This tutorial is known to work on many other distributions as well as CentOS.
This tutorial is for the 4.9-5.x updates of OpenSSH
OpenSUSE

Linux Kernel Magic SysRq keys in openSUSE for crash recovery

Post date: September 28, 2008, 17:09 Category: System Views: 4076 Comments
Tutorial quote: The Linux Kernel offers you something that allows you to recover your system from a crash or at the least lets you to perform a proper shutdown using the Magic SysRq Keys. The magic SysRq key is a select key combination in the Linux kernel which allows the user to perform various low level commands regardless of the system’s state using the SysRq key. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem.
Unix+clones

Bash tips and tricks

Post date: November 26, 2007, 05:11 Category: Software Views: 40631 Comments
Tutorial quote: For the uninitiated, bash is the default shell in many Linux distros, including Fedora, Ubuntu, Redhat etc etc. If you use a Linux based OS, then chances are that you are using bash. For this reason, I outline below a few common annoyances, and the simple ways to overcome them.
Linux

Tweakin' your Bash Prompt

Post date: January 6, 2007, 22:01 Category: System Views: 5052 Comments
Tutorial quote: A friendly companion to the Bash-Prompt HOWTO, including a new trick to make the prompt change color dynamically based on your log-in. In the process, the overview could be handy in doing other Bash prompt tricks.
Linux

How the One-Liner For-Loop in Bash Goes

Post date: January 6, 2007, 21:01 Category: System Views: 4186 Comments
Tutorial quote: A mini-guide to one of the coolest tricks at the Bash command line - performing the same operation on a whole group of files at once using the "for-do-done" loop syntax.
Unix+clones

OpenSSH/Keychain Howto

Post date: April 12, 2005, 17:04 Category: Network Views: 4281 Comments
Tutorial quote: This howto will show you the fundamental ways to use OpenSSH; how to generate public/private key pairs and strong passphrases, and how to use the wonderful Keychain utility to automate your SSH logins. This is exceptionally handy when you log in and out frequently, and don't want to keep entering your passphrase.
Linux

Talking clock, written in bash using common utilities

Post date: October 20, 2006, 19:10 Category: Programming Views: 4594 Comments
Tutorial quote: Build your own talking clock, using Bash and some common *nix utilities like sox. Articluates the time at random once an hour and hour and with a random pitch.
Includes very basic short scripts to get you going on basic bash coding and then puts it all together to produce the finished item.
Takes time out to explain as much as possible to a large audience.
Ubuntu

Renew Certificate or Create New Certificate from Zimbra CLI

Post date: November 10, 2010, 12:11 Category: Software Views: 4643 Comments
Tutorial quote: Renew Certificate or Create New Certificate from Zimbra CLI on Ubuntu server.
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