Casual technical question about /etc/services

ken_i_m at ken_i_m at
Thu Mar 25 07:46:22 PST 2004

On Tue, Mar 23, 2004 at 06:49:54PM -0600, Dagmar d'Surreal (dagmar.wants at wrote:
> Now, I've never seen something that could look up states on what amounts
> to a stateless connection, and nearly all the entries in /etc/services
> have them doubled up like this.  Does anyone know _why_ unused protocols
> are listed like this?

I think it is just historical practice at IANA.

While UDP (et al) are stateless, iptables does do connection tracking for 
such traffic. (But then I think you knew that and thus this does not answer 
your question.)
I think, therefore, ken_i_m
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