Re: Long wait time for login prompt after rebooting (HPUX 10.20)

From: Jan Gerrit Kootstra (jan.gerrit_at_kootstra.org.uk)
Date: 11/18/05

  • Next message: Alexander Skwar: "Correct way to specify addl. directories for dld (SHLIB_PATH)" 
    Date: Fri, 18 Nov 2005 07:15:23 +0100

    Norman Woo wrote:
    > Hi Folks
    >
    > Lately we have been encountering a strange problem after rebooting one
    > of our HPUX servers (running HPUX 10.20). We are unable to get the
    > login prompt (rlogin or telnet) from other UNIX servers and Windows.
    > However, we can ping and get a response from the server.
    >
    > We can login from the Console with no problem. FTP works fine. We do
    > have another HP server that NFSs some disk with this server and we do
    > see the disks from the rebooted server.
    >
    > What is strange is that after about an hour or so, everything returns
    > to normal. We can then login using rlogin and telnet.
    >
    > I check the rc.log and there is no error there. The syslog file shows
    > no error either. I think something is blocking the rlogin or telnet
    > daemon from starting right away.
    >
    > The only recent change we made to the server was hostname change.
    > Could this be causing something to hang and then timeout after a
    > reboot?
    >
    > Anyone encountered this situation before?
    >
    > TIA
    >
    > Regards
    After changing the hostname did you also change the DNS records accordingly?

    HP-UX's telnet daemon does a DNS lookup to check it's ip-address/dnsname
    pair to check it's credibility and maybe the rlogin "daemon" does this too.

    Regards,

    Jan Gerrit

  • Next message: Alexander Skwar: "Correct way to specify addl. directories for dld (SHLIB_PATH)"

    Relevant Pages

    • Re: Double Auth with SSH
      ... This sshd only allows login by RSA key. ... Suppose the only executable in that jail is a telnet client. ... to convince the telnet server to run anything for them but login. ... And what's the matter in using two ssh servers? ...
      (comp.os.linux.security)
    • Re: rlogin
      ... login the server using telnet, rsh, rlogin and also ssh. ... Telnet does not provide any protection. ... We have only 1 host system. ...
      (comp.unix.aix)
    • Re: telnet login
      ... I'm trying to telnet into the linux ... > connection lost no error message or anything. ... > Is there a way to pass both login and password to server from prompt. ...
      (comp.os.linux.misc)
    • Trouble Telnetting w/ Expect from HP-UX to Windows
      ... spawn telnet server 1023 ... expect "login: " ... Escape character is '^]'. ...
      (comp.lang.tcl)
    • Remote login fun & games
      ... After a few months of pain-free ssh remote login and NFS access between Mac ... I thought about rlogin & telnet. ... telnet stream tcp nowait root /usr/libexec/telnetd telnetd ... Now if I rlogin under my user account 'mwh' it lets me in then IMMEDIATELY ...
      (comp.unix.bsd.freebsd.misc)