This week’s TechMail is Using Corkscrew to tunnel SSH over HTTP which talks about creating an SSH tunnel using HTTP and the Corkscrew tool. Very cool and interesting stuff. Fortunately I’ve never been in such a restrictive environment where I’ve needed to use it, but it’s good to know in case I’m stuck in a hotel or something that has silly firewall rules.
Tag Archives: openssh
Get network versatility with SSH tunneling and netcat
This week’s TechMail is Get network versatility with SSH tunneling and netcat which talks about using netcat as a proxy tool to bounce transparently through a bastion host to a secure end point. It’s not something that you may use a lot, but if you need to be able to do something like this in a pinch, openssh and netcat are two tools that are almost always available and it’s cool stuff to know anyways. =)
Secure remote firewall administration via SSH
This week’s TechMail is Secure remote firewall administration via SSH which talks about using ssh to create a secure tunnel to a remote network/system to use with configuring a remote firewall. I use this quite a bit with remotely-deployed pfSense boxen to configure it using the web interface and it works great. Of course, the nice thing with ssh tunnels is you can use them for darn near everything, but this is one practical example.
Realize the flexibility of OpenSSH
The last TechMail is Realize the flexibility of OpenSSH which talks about some of the basics of using OpenSSH, from setting up keys to modifying sshd_config for user/group access controls and different features per group/user. OpenSSH is another of my favourite tools. Of course, there’s also the linsec wiki page Optimizing OpenSSH that goes into a lot more depth about using OpenSSH. It does, however, need to be updated to note the many new features recent OpenSSH versions provide.
