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"When the going gets tough, the tough get empirical." -- Jon Carroll

computers / alt.os.linux.ubuntu / Infuriating double MOTD

Infuriating double MOTD

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From: lws4art@gmail.com (Jonathan N. Little)
Newsgroups: alt.os.linux.ubuntu
Subject: Infuriating double MOTD
Date: Wed, 20 Mar 2024 10:08:41 -0400
Organization: LITTLE WORKS STUDIO
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by: Jonathan N. Little - Wed, 20 Mar 2024 14:08 UTC

I have just 2 servers that display the MOTD messages twice when either
logging in or when ssh in. One is running 20.04 and the other 22.04, but
I have others servers that do not do this.

Also comparing confs for often posted "remedies" I have found in forums:
/etc/pam.d/login, /etc/pam.d/sshd, and /etc/ssh/sshd_config and my
/etc/ssh/sshd_config.d/local.conf are identical for the servers that
double the MOTD to those that properly only display it once. PUZZLED

--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com

Re: Infuriating double MOTD

<utfcr5$1ll26$1@dont-email.me>

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From: lws4art@gmail.com (Jonathan N. Little)
Newsgroups: alt.os.linux.ubuntu
Subject: Re: Infuriating double MOTD
Date: Wed, 20 Mar 2024 15:18:59 -0400
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In-Reply-To: <uteqlb$1h93q$1@dont-email.me>

by: Jonathan N. Little - Wed, 20 Mar 2024 19:18 UTC

Jonathan N. Little wrote:
> I have just 2 servers that display the MOTD messages twice when either
> logging in or when ssh in. One is running 20.04 and the other 22.04, but
> I have others servers that do not do this.
>
> Also comparing confs for often posted "remedies" I have found in forums:
> /etc/pam.d/login, /etc/pam.d/sshd, and /etc/ssh/sshd_config and my
> /etc/ssh/sshd_config.d/local.conf are identical for the servers that
> double the MOTD to those that properly only display it once. PUZZLED
>

I was able to replicate the *default* motd behavior on the two wayward
servers by editing both the /etc/pam.d/login and /etc/pam.d/sshd by
commented out the noupdate option as so:

# This includes a dynamically generated part from /run/motd.dynamic
# and a static (admin-editable) part from /etc/motd.
session optional pam_motd.so motd=/run/motd.dynamic
#session optional pam_motd.so noupdate

The MOTD does update with each login, but now just displays once.
However I am unable to determine why this is necessary, since the other
servers require no such edit. If anyone can enlighten it would be welcomed.

--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com

Subject	Author
Infuriating double MOTD	Jonathan N. Little
Re: Infuriating double MOTD	Jonathan N. Little