Ports which should be opened

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For server some ports should be opened or forwarded to M4/MOR server:

  • TCP 80 - for GUI/HTTP
  • TCP 22 - for SSH connection
  • TCP 25/465 - for SMTP / SMTP over SSL (TLS)
  • TCP 443 - for GUI/HTTPS
  • UDP 694 - for Heartbeat.
  • TCP 3306 - for MySQL replication
  • TCP 3690 - for SVN connections
  • UDP 4569 - for IAX2 connection (Only for MOR)
  • UDP 5060 to 5070 - for SIP connection
  • UDP 10000 to 20000 - for RTP/audio (Only for MOR)
  • UDP 10000 to 50000 - for RTP/audio (Only for M4)
  • UDP 123 - Network Time Protocol
  • TCP/UDP 1720 - for H.323 Protocol (Only for MOR)
  • TCP 5038 - for Asterisk manager interface (Only for MOR)
  • TCP 9200,9300 - Elasticsearch service
  • UDP 4000 to 4999 - for T.38 support (Only for MOR)
  • TCP 10050 - Zabbix agent

You can test which TCP ports are opened using nmap tool:

nmap -vv -p0 your server's IP address

https://www.virtualizationhero.com/docs/manuals/linux/RHL-9-Manual/security-guide/s1-server-ports.html


iptables config

For Asterisk (only) server:

iptables -A INPUT -p tcp --dport ssh -j ACCEPT
iptables -A INPUT -p tcp --dport 5038 -j ACCEPT
iptables -A INPUT -p udp --dport 5038 -j ACCEPT
iptables -A INPUT -p udp --dport 4569 -j ACCEPT
iptables -A INPUT -p udp --dport 1720 -j ACCEPT
iptables -A INPUT -p udp --dport 5060:5070 -j ACCEPT
iptables -A INPUT -p udp --dport 10000:20000 -j ACCEPT
iptables -A INPUT -p udp --dport 4000:4999 -j ACCEPT
iptables -A INPUT -j DROP