Hi Guys,<br>i wanted to share this with u and ask for little help at the same time:<br>i used iptables to secure my server, so i wnet ahead and blocked avery thing except a couple of domain protocols and UDP ports of SIP, IAX2 and that range 15000 to 20000, tested it and OK. when in production, the calls were taking a huge time 7s to be established and somtimes after call setup people cannot hear ech other (but not all the time which weird), so iptables can miss up performance if not set correctly (even if it's working, stuff like this can happen). so if any body have some lines of iptables that secure server and don't cause performence trouble to phone calls please share with me (i am using Centos 5.3 asterisk 1.4.24).<br>
Thanks!<br clear="all"><br>-- <br>Abdullah<br>