Here’s how to do it:
firewall-cmd --zone=internal --add-service=ssh --permanent
firewall-cmd --zone=internal --add-source=22.214.171.124/32 --permanent
firewall-cmd --zone=internal --add-source=126.96.36.199/32 --permanent
firewall-cmd --zone=public --remove-service=ssh --permanent
This declares an internal zone with two IPs (add as many or as few as you like) and subsequently removes the SSH service from the public zone altogether. As a result, any other IP gets a message such as “Connection refused” when trying to connect via SSH.
The “–permanent” switch saves the changes. Remove it for testing or if you don’t want this change to be permanent.
The last line reloads the current firewall rules (thanks, CertDepot).
Imagine you’ve created a project in Xcode with a local Git repository. Now you’d like to put this online so that others can collaborate with you. How do you do that?
This has been puzzling me for a while, and there doesn’t seem to be a clear documentation on this subject – so I’ve decided to take some notes as I figured it out. Here are step by step instructions on how to make it work.
All we need is a server running Git and SSH credentials to that server to get started.
Continue reading How to use Xcode with a remote Git server
Git is a superb version control system that’s tightly integrated into Apple’s Xcode. To collaborate with some coding buddies of mine we wanted to setup a central remote storage on my Plesk server so we could all contribute to the code.
Since we did not want to share our code with the public we wanted to make it secure. So secure in fact that we could contribute from coffee shops around the world, hence we decided to use Git with SSH. This is probably the easiest and most straightforward way for read/write access to Git remotes: no daemon to setup, to Firewall to tweak – all we needed was a set of SSH credentials and a server running Git with a bit of space.
Continue reading How to install Git on CentOS
By default SSH access is disabled for FTP and web users which is a very good thing. I’d recommend enabling this only if you know exactly who’s connecting to your server and why.
In my case, I want to use my server to host Git repositories so I can collaborate with some trusted coding buddies of mine. Here’s how I did it – I’m using Plesk 11 for this demonstration:
Continue reading How to give your Plesk users SSH access