Site-wide Tags:  Linux(17) | CommandLine(12) | Ubuntu(10) | RemoteAccess(7) | Tools(7) | Vim(7) | LiftWeb(5) | SBT(5) | SoftwareDev(5) | Mac(5) | Scripts(4) | WebDev(4) | Diagrams(4) | Lifty(3) | NetworkDrives(3) | Processwire(3) | Security(3) | Fog(3) | VCS(3) | BestPractices(3) | RaspberryPi(2) | WebDesign(2) | Encryption(2) | Windows(2) | SSH(2) | WinCommandPrompt(2) | GitHubRepos(2) | Emacs(2) | PHP(2) | IDE(2) | ErrorMsgs(2) | JVM(2) | Hardware(2) | Bash(2) | Networks(2) | Graphviz(2) | Cloning | Cygwin | Graphics | Java | SystemRecovery | lessc | Maven | Python | PXE | Samba | LXDE | PackageManagement | LifeHacks | LESS |

This site has been archived and will no longer be updated.
You can find my new profile at My new blog is at

Entry 2: Where Is My Server If Its Behind A Firewall?

Topic: OpenVPN on Ubuntu Server Behind Firewall   

Tags:  RemoteAccess   

Created on Thu, 03 May 2012.

If you are behind someone else's firewall, chances are you have a dynamic ip as well.

Usually to keep track of the external IP of a host with dynamic ip, I use a ddns service which is supported with my router. If my router doesn't support ddns, I use a simple script which will email me the external IP address of the host.

Behind a Firewall however, I have setup a reverse shh tunnel which can hold a persistent connection to an agent server. Then I can access the server which is behind the firewall by ssh'ing into the agent server at a specific port which will redirect me to the host behind the firewall. I will write a post on this when I get some time~

Similarly, there is a way to maintain an openVPN connection between two hosts. I will write about this in the coming future too.

Sorry for the short Log, but I just wanted to add a quick update to this topic.

PLEASE let me know if I'm doing something wrong, or if you have any suggestions or requests~

blog comments powered by Disqus

All Entries Within This Topic:

Subscribe to this topic:

Browse Topics: