[RndTbl] Connection tracking in ipfilter (Solaris) or ipfw (Mac OS X)?

Gilbert E. Detillieux gedetil at cs.umanitoba.ca
Wed Jan 21 12:09:39 CST 2009

On 2009-01-20 19:15, Peter O'Gorman wrote:
> Gilbert E. Detillieux wrote:
>> Any suggestions for clean, secure ways to implement firewall support for 
>> these services using ipfilter or ipfw?
> For Mac OS X, using ipfw in combination with the Application Firewall
> may accomplish some of what you want:
> http://support.apple.com/kb/HT1810

I'm working on Mac OS X Server, which doesn't have the Application 
Firewall (under System Preferences/Security), but instead has a rather 
nice Firewall GUI front-end to ipfw, under the Server Admin app.

However, this does not provide the functionality I'm looking for.  It 
did make the basic ipfw setup much easier, though.  (Only needed a 
couple manual-override rules that I couldn't set up through the GUI.)

> There is also a GUI frontend for ipfw on Mac OS X, don't know if it's
> any good - http://www.hanynet.com/waterroof

I had heard of this, but I haven't tried it.  It looks like an 
alternative to what's provided in Server Admin.  (Perhaps it would be 
more useful under the non-Server versions of Mac OS X.)

> For Solaris, I don't know, I'm afraid, I guess you found the FAQ?
> http://www.phildev.net/ipf/long.html

Looked through that FAQ already, as well as the IPF Howto it references. 
  Their solution to the passive FTP server problem is to open up a port 
range in the firewall, and configure the FTP server to use that port 
range for passive data transfers.

I was hoping for a better solution, including one that would work for 
Amanda backups as well, using connection tracking.  However, it looks 
like the open port range solution is the best I can hope for right now.

Anyway, thanks for your reply.

Gilbert E. Detillieux		E-mail: <gedetil at muug.mb.ca>
Manitoba UNIX User Group	Web:	http://www.muug.mb.ca/
PO Box 130 St-Boniface		Phone:  (204)474-8161
Winnipeg MB CANADA  R2H 3B4	Fax:    (204)474-7609

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