Linux-kernel mailing list archive 2000-26,: /proc/net/tcp, uid and euid

# /proc/net/tcp, uid and euid

Christoffer Hall-Frederiksen (hall@diku.dk)
Sat, 1 Jul 2000 00:49:53 +0200

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I ran into a little problem with ident the other day. Identd
on my box returned wrong answers when lookup rlogin-connections.
The connections were all made by root. If you use telnet the
problem doesn't exist. The problem is that pidentd (and oidentd)
looks up the uid of the tcp-connections in /proc/net/tcp. But
the uid listed there is not the uid, but the euid. This makes
the rlogin connections appear as if they came from root because
rlogin is suid-root. Is there a reason why /proc/net/tcp lists
the euid and not the uid?

    --
    	Christoffer

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