Hi Avi Thanks for the info, I will certainly look into using fail2ban for failed SIP attempts. For the other items I should be covered ok. Iptables is already restricted to what I will be using on the server, and I am using software called 'denyhosts' which blocks hosts based on failed SSH login attempts. No other services run on the server which could compromise the system, so hopefully I should be fairly safe! Cheers Ben From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Avi Marcus Sent: 18 October 2011 12:46 To: FreeSWITCH Users Help Subject: Re: [Freeswitch-users] Lock down default config Here's a start: -fail2ban on DDOS and excessive attempts to register with the wrong password. See the wiki page on fail2ban. -ufw or similar to manage iptables, or iptables (or it's bsd equivalent) to drop everything but these ports: http://wiki.freeswitch.org/wiki/Firewall -ssh - if you use ssh, use keys (with a passphrase?) rather than just plain passwords. I rarely get sip-attacks, but my logs show several SSH brute force attempts each day. -Do you have any other users or services running on the server? if they have access to config files, or just to using resources that FS needs, it can compromise the security or just the quality of the call. -Avi On Tue, Oct 18, 2011 at 1:37 PM, Ben Naylor <bnaylor@sirran.com> wrote: Hi All I am going live with a Freeswitch server in a couple of weeks, and it will be using a public IP. I am a bit concerned that I may not have tightened security on the box enough to protect it (as best I can) from attack. I have had a look online for something similar to this but a freeswitch version, but can't find anything - http://blogs.digium.com/2009/03/28/sip-security/ Can anyone suggest a list of things I should check before I go live with this server? I have already changed the default password, removed the default user accounts/passwords and removed the external SIP account. Any ideas are greatly appreciated, also any links to websites that I may not have found yet. Thanks for your help! Kind regards Ben FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org