Bug 14505 - unable to telnet from machines without reverse resolving
unable to telnet from machines without reverse resolving
Status: CLOSED RAWHIDE
Product: Red Hat Linux
Classification: Retired
Component: util-linux (Show other bugs)
6.2
i386 Linux
medium Severity high
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Assigned To: Erik Troan
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Depends On:
Blocks:
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Reported: 2000-07-24 03:06 EDT by Need Real Name
Modified: 2008-05-01 11:37 EDT (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2001-02-06 13:32:02 EST
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Description Need Real Name 2000-07-24 03:06:46 EDT
Vanilla redhat 6.2 with openldap and nss_ldap.
When telnetting to the server from a pc which doesn't have reverse address
in the dns it disconnects after a password.
There's no details in the log.
tcp_wrappers (tcpd) are NOT used.
Attaching strace to the inetd (-f -p) shows that the process /bin/login
which is passed parameters: -h 10.0.0.1 -p and environment which consists
of REMOTEHOST=10.0.0.1 and TERM=xterm dies with SEGMENTATION FAULT.
The 10.0.0.1 is the address of the client.
/etc/nsswitch.conf lists ldap in passwd, group, shadow, NOT hosts.
/etc/resolv.conf, /etc/host.conf are simple and usual. I was able to
reproduce it on freshly installed system.
pam and openldap are updated to ones from updates.
all components are from redhat.com
This is exteremely annoying bug.
Comment 1 keith.moore 2000-08-17 08:23:25 EDT
Does this only happen with LDAP installed?

-- Keith Moore
Comment 2 Erik Troan 2001-02-07 20:02:26 EST
Does this happen with 7.0 as well?

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