Microsoft released a first beta of its upcoming System Center Virtual Machine Manager 2012 product to the MSDN community in early May. We took it out for a spin, and here's what we found.
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DenyHosts makes it easy to ward off unauthorized SSH connection attempts. The utility blocks attempts to connect to your server via SSH after too many failed attempts or from a blacklisted host.
When your system is rooted, you can't trust most utilities to show processes from the rootkit. To identify the problem, check out unhide and unhide.rb.
The tail utility is one of the most useful admin tools, but it's limited and outdated. Bring your log-watching capabilities into the 21st century and view multiple logs at one time with MultiTail.
This Python app makes use of SSH to create a VPN between a Linux, BSD, or Mac OS X machine and a remote system that has SSH access and Python -- great for building a VPN on the fly.
Perl may not be glamorous, but its modules are often hard to avoid. Oftentimes, the standard CPAN shell makes using them more difficult than it needs to be. If that's the case for you, consider switching to CPAN Minus.
If you use git to collaborate, you probably also know about Gist, a Pastebin-type service from Github. But did you also know, that if you're a Vim user you can get even more out of it with the script Gist.vim?
Telnet remains a useful, albeit insecure, way to troubleshoot Linux-powered servers.
Data aficionados constantly on the lookout for better ways to display charts and graphs will appreciate CairoPlot, Python-based plotting software pretty enough to impress even the most jaded Mac user.
There are many options for online collaboration, but WebDAV remains a useful and straightforward way to share files. Software support at both the server and client ends sweetens the deal further.
If you're short on cash but looking for a server to test operating systems and virtual environments or a flexible machine capable of being quickly reconfigured for testing purposes, consider building your own. Here's how.
If you need to manage multiple sessions in the same terminal, consider Tmux, a handy "terminal multiplexer." This week, we take a look at its basic usage and configuration.
If you want the advantages of a local messaging server as well as those of cloud computing, it may be time to consider coexistence.
The less versatile of the two main high availability technologies in Windows Server 2008 R2, Network Load Balancing offers functionality that cannot be easily facilitated through other native OS means. This article examines its features and how to deploy it.
Need to run multiple sessions in the same terminal but aren't fond of screen? Consider tmux, open source software that offers Emacs and vi-style keybindings.
Mutts can be lovable companions, but they still must be trained. The same is true of the Mutt mail client. Out of the proverbial box it's a powerful mail client, but that's nothing compared to what you can do with a well-trained Mutt.
If Sudo is part of your toolkit, and it should be, it's time to upgrade and start taking advantage of the new features in this latest version.
Not everyone is comfortable with a command-line interface. If you're writing scripts for users who prefer to work from a GUI, check out Zenity, a GNOME utility that provides simple GUI dialogs from a shell script.