[Asterisk-Users] Firewall will definately increase jitters inyourvoice conversation

[Tzafrir Cohen]

On Wed, Aug 10, 2005 at 09:58:09PM -0600, Rich Adamson wrote:
> That's a crack of crap sold by the marketing (not sales) people selling
> firewalls. "If" you know what you're doing, one can very easily secure any
> linux system to function on the Internet (etc) without a firewall. It all
> depends on your level of knowledge/skills on how to disable those items
> that are not really needed in your environment. Start with a 'netstat -a'
> to identify those ports that are listening, and shut those items down that
> you don't want exposed.

  netstat -lutp

is more efficient than a simple netstat -a. RTFM netstat.

You could also write your own iptables script and optimize it for low
latency. In fact, I bet there are enough such scripts rolling around the
'net. Even I wrote one.

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