firewall

I have started and tested Tomcat under Port 8080 (default). Now I altered the connector port to 80 and restarted Tomcat, nothing will show on my minimal Debian 6.0 installation. Now where is the trick here? <Connector port="80" protocol="HTTP/1.1" connectionTimeout="20000" URIEncoding="UTF-8" redirectPort="8443" /> Dominik go to /etc/default/tomcat6 and change #AUTHBIND=no to AUTHBIND=yes # If you run Tomcat on port numbers that are all higher than 1023, then you # do not need authbind. It is used for binding Tomcat to lower port numbers. # NOTE: authbind works only with IPv4. Do not enable it

I'm writing an iOS app that acts as, among other things, a telnet server. Naturally, it begins listening for connections as soon as it starts. When I run the app in the Simulator, Mac OS X (I happen to be on 10.7.3) prompts me to Allow or Deny my application to accept incoming network connections. This is the standard Firewall message that Mac OS X uses for all unsigned, networked applications. I grow weary of clicking "Allow" fifty or more times a day, and so I seek a way of permanently adding my app to the Firewall's list of permitted apps. I've tried the following. Open Activity Monitor

I've never used iptables, and the documentation online seems a bit opaque. I'd like to block all requests to port 8000 on my server except those coming from a specific IP address. How do I do that using iptables? This question should be on Server Fault . Nevertheless, the following should do the trick, assuming you're talking about TCP and the IP you want to allow is 1.2.3.4: iptables -A INPUT -p tcp --dport 8000 -s 1.2.3.4 -j ACCEPT iptables -A INPUT -p tcp --dport 8000 -j DROP HRgiger Another alternative is; sudo iptables -A INPUT -p tcp --dport 8000 -s ! 1.2.3.4 -j DROP I had similar issue