Firewall blocking/unblocking a port <p>I have an app installed on a server with windows 2008 R2 OS and hosted it on port 8080 (used apache tomcat for this).. I'm able to access the app through the URL.. </p> <p>Now, the problem is that I'm unable to access the URL (I mean app) from any other LAN connected machines. </p> <p>After some exploration, I turned off the firewall of that server and I was able to access the app from other LAN connected machines..</p> <p>I came to know the problem i.e Firewall is blocking that port 8080..</p> <p>I can turn off the firewall, but it is not recommended right.. my requirement is to turn on the firewall and make this app accessible from any other LAN connected machine... I think I need to make that port open/something like that, but I don't have any idea regarding this.. no network admin is available as of now, so had to do it myself :( Kindly help me regarding this...</p> <p>Thanks in advance!! :)</p> <p>PS: I cannot download/install any other software's on that server, please suggest some way which can happen via command prompt/some settings to access that port from other LAN connected machines</p>