[LARTC] classifying packets and ports

[Thomas d'Otreppe]

maybe they uses layer-7 to classify traffic

Thomas

2006/2/5, the sew <sewlist at gmail.com>:
> Hi,
>
> I've been working for a big corporate company as junior system engineer and
> getting nicely to understand HTB/iproute2/iptables etc,
> The ordinary users(about 500 users), can pop / smtp / skype out on the
> network, but I can't ssh out, cause they blocked the ports. Thought of being
> clever, I let my home linux listen on port 443 or 110 for ssh connection,
> but it wont connect, I  even test it using telnet and it show up ssh, but it
> wont connect with my ssh client, but normal pop and https works. How do they
> block my ssh connection on port 443, but normal https work?
> Do they use TOS with iptables?,, bit of a brain teaser for me
>
> Thanks
>
> Sew
>
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