Need suggestion about firewall and BIND 8.3.3

[David Botham]

Sorry,  mis-read that last post.  

DNS:  UDP=53, TCP=53
SSH:	TCP=22
FTP:  TCP=21 (control) and 20 (data) 

FTP may be a little tricky to handle with a packet filter.  A more
secure option would be to tunnel FTP through SSH.  Then, you would not
have to worry about filtering FTP, only SSH and DNS.


> Hello,
> 
> I want to protect both my primary and secondary DNS server with a
packet
> filtering software. Any suggestion which ports should I open on both
my
> primary and secondary DNS server? I also want to enable SSH and FTP on
> both
> servers.
> Thank you in advance!