Date: Tue, 26 Sep 2000 20:06:34 +1100 (EST) From: Stanley Hopcroft <Stanley.Hopcroft@IPAustralia.Gov.AU> To: Odhiambo Washington <wash@iconnect.co.ke> Cc: Stanley Hopcroft <Stanley.Hopcroft@IPAustralia.Gov.AU>, FreeBSD Questions <freebsd-questions@FreeBSD.org> Subject: Re: telnetd: All network ports in use. After new 4.1-R kernel; Ok with GENERIC. Message-ID: <Pine.BSF.4.21.0009261832370.1505-100000@stan> In-Reply-To: <20000926102731.I11998@poeza.iconnect.co.ke>
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Dear Sir,
I am writing to thank you for your letter about this matter,
On Tue, 26 Sep 2000, Odhiambo Washington wrote:
> * Stanley Hopcroft <Stanley.Hopcroft@IPAustralia.Gov.AU> [20000926 02:39]:
> =>Dear Ladies and Gentlmen,
> =>
> =>I am writing to ask your help with this message
> =>
> =>Connected to blah.
> =>Escape character is '^]'.
> =>telnetd: All network ports in use.
> =>Connection closed by foreign host.
> =>
> =>Why isn't there a number after pty ?
>
> I MUST have a number to specify the no. of ttys available!!!!!
> put, say 16, after it and recompile.
>
>
> =>
> =>It's possible, however, that I commmented it out mistakenly when trying
> =>to do so for the tun or md pseudo-devices.
> =>
>
> I am not sure.
>
> =>My reasons for asking include
> =>
> =>1 There is nothing in the FAQ about this
> =>2 Frequent advice in "Questions" to rebuild the kernel with more
> =>ptys. If I haven't touched ptys, and perhaps others are the same, then
> =>this advice is useless.
> =>3 This is the second time this has happened to me with a 4.x kernel
> =>(never in 3.x or 2.1.x and 2.2.x). I don't think anything's wrong with
> =>the 4.x kernel but this may be a common mistake that others can avoid.
> =>
>
> look at the explanations in /usr/src/sys/i386/conf/LINT
and say,
"If you're not very clever you should be conciliatory.
-- Benjamin Disraeli"
I'll try and follow this advice. I need to.
stan> cd /usr/src/sys/i386/conf/
stan> uname -a
FreeBSD stan.aipo.gov.au 4.1-RELEASE FreeBSD 4.1-RELEASE #0: Fri Sep 1
13:27:48 EST 2000 root@stan.aipo.gov.au:/usr/src/sys/compile/STAN2
i386
stan> grep -i -3 pty LINT
#####################################################################
# MISCELLANEOUS DEVICES AND OPTIONS
# The `pty' device usually turns out to be ``effectively mandatory'',
# as it is required for `telnetd', `rlogind', `screen', `emacs', and
# `xterm', among others.
pseudo-device pty #Pseudo ttys
pseudo-device speaker #Play IBM BASIC-style noises out your
speaker
pseudo-device gzip #Exec gzipped a.out's
pseudo-device vn #Vnode driver (turns a file into a
device)
pseudo-device md #Memory/malloc disk
pseudo-device snp 3 #Snoop device - to look at
pty/vty/etc..
pseudo-device ccd 4 #Concatenated disk driver
# Configuring Vinum into the kernel is not necessary, since the kld
stan>
My reading of this is that there is no explanation of the number of
ptys in LINT. Where else should I look ?
I can't understand the code in kern/tty_pty.c.
stan> grep -i pty STAN2
pseudo-device pty # Pseudo-ttys (telnet etc)
stan>
Should there be a number after ptys ? (like bpf ). If so, why does this
kernel accept telnet connections ?
>
>
> =>Thank you,
>
>
> --
> Odhiambo Washington Inter-Connect Ltd.,
> wash@iconnect.co.ke 5th Flr Furaha Plaza
> Tel: 254 11 222604 Nkrumah Rd.,
> Fax: 254 11 222636 PO Box 83613 MOMBASA, KENYA.
>
> After all, it is only the mediocre who are always at their best. -Jean
> Giraudoux
>
Thank you,
Yours sincerely.
S Hopcroft
Network Specialist
IP Australia
+61 2 6283 3189
+61 2 6281 1353 FAX
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