Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Petter Reinholdtsen
If I understand the problem correct, systemd changed the setup to block access
to the network for several services used during login, and this break
any NSS module fetching information from a network service, like the NIS
one.   If so, this problem will affect others, like libnss-ldap and
libnss-mdns, and is not NIS specific.  It will not affect NSS modules
with a separate daemon connecting to the network service, like libnss-ldapd
and libnss-sss.

The recommondation to use the Name Service Cache Daemon (nscd) will cause
new and interesting problems with NIS, and is perhaps not the best way to
solve this.  The NSCD cache some times will end up in an inconsistent state,
and might cause users to log in with an incomplete set of groups, if I
recall the problem correctly.

It seem safer to not block all network connections when some of the
"network enabled" NSS modules are active.

-- 
Happy hacking
Petter Reinholdtsen



Bug#930424: cflow: provide html version of cflow.info

2019-06-12 Thread Dmitry Bogatov

Source: cflow
Severity: wishlist

Dear Maintainer,

please provide html version of cflow.info. Possibly, it worth also
splitting documentation (and localization data, too) into separate
binary packages.

-- System Information:
Debian Release: 10.0
  APT prefers buildd-unstable
  APT policy: (500, 'buildd-unstable'), (500, 'unstable'), (500, 'testing'), 
(1, 'buildd-experimental'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=eo.utf8, LC_CTYPE=eo.utf8 (charmap=UTF-8), LANGUAGE=eo.utf8 
(charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: runit (via /run/runit.stopit)
LSM: AppArmor: enabled


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Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Michael Biebl
Am 12.06.19 um 14:06 schrieb Petter Reinholdtsen:
> If I understand the problem correct, systemd changed the setup to block access
> to the network for several services used during login, and this break
> any NSS module fetching information from a network service, like the NIS
> one.

More specifically, systemd-logind.service was locked down considerably
including IPAddressDeny=any

   If so, this problem will affect others, like libnss-ldap and
> libnss-mdns, and is not NIS specific.  It will not affect NSS modules
> with a separate daemon connecting to the network service, like libnss-ldapd
> and libnss-sss.
> 
> The recommondation to use the Name Service Cache Daemon (nscd) will cause
> new and interesting problems with NIS, and is perhaps not the best way to
> solve this.  The NSCD cache some times will end up in an inconsistent state,
> and might cause users to log in with an incomplete set of groups, if I
> recall the problem correctly.
> 
> It seem safer to not block all network connections when some of the
> "network enabled" NSS modules are active.

See Lennart's comment at
https://github.com/systemd/systemd/issues/7074#issuecomment-338157851

He suggests that the nis package could ship a drop-in config snippet in
/lib/systemd/system/systemd-logind.service.d/ which turns off that
sandbox feature.
This seems like a reasonable fix that would be worthwile having in
buster in case anyone still cares for the nis package.

-- 
Why is it that all of the instruments seeking intelligent life in the
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Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Michael Biebl
Am 12.06.19 um 14:06 schrieb Petter Reinholdtsen:
>  If so, this problem will affect others, like libnss-ldap and
> libnss-mdns, and is not NIS specific.

Afair, libnss-ldapd is nowadays recommended over libnss-ldap.
As for libnss-mdns: Doesn't it use the locally installed avahi-daemon to
do the lookups?

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Bug#698359: updated links

2019-06-12 Thread Paolo Greppi

These are updated links to the fork mentioned by the submitter:
https://www.c-amie.co.uk/software/analog/
https://github.com/c-amie/analog-ce

It looks like the c-amie fork has diverged, from a quick diff it is missing 
some ipv6 stuff we have in our version ..

Paolo



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Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Petter Reinholdtsen
[Michael Biebl]
> Afair, libnss-ldapd is nowadays recommended over libnss-ldap.

Sure, but my point is that this issue affect any nss module (and pam
modules, perhaps) asking processes to look up information over the net,
not only the nis module.

> As for libnss-mdns: Doesn't it use the locally installed avahi-daemon
> to do the lookups?

I'm not sure.  I believed it worked without avahi-daemon, but have not
invstigated.

--
Happy hacking
Petter Reinholdtsen



Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Michael Biebl
Am 12.06.19 um 20:01 schrieb Petter Reinholdtsen:
> [Michael Biebl]
>> Afair, libnss-ldapd is nowadays recommended over libnss-ldap.
> 
> Sure, but my point is that this issue affect any nss module (and pam
> modules, perhaps) asking processes to look up information over the net,
> not only the nis module.
> 

If you know any modules besides libnss_nis and libnss_ldap, please let
us know.


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Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Petter Reinholdtsen


[Michael Biebl]
> If you know any modules besides libnss_nis and libnss_ldap, please let
> us know.

I do not _know_, but here is my best guess based on the output from
'apt-cache search libpam-', 'apt-cache search libnss-' and experience:

libpam-heimdal
libpam-krb5-migrate-mit
libpam-krb5
libpam-radius-auth
libpam-python (depending on script used, know debian edu have such script)
libpam-script (depending on script used)
libpam-slurm
libpam-sshauth
libpam-winbind
libnss-lwres
libnss-mdns
libnss-pgsql2 (depending on server location)
libnss-winbind

Might be useful to check those out.

It is unclear to me if the login daemon in question uses the PAM system
too.

-- 
Happy hacking
Petter Reinholdtsen



Bug#878625: systemd: NIS users login takes longtime.

2019-06-12 Thread Michael Biebl
Am 12.06.19 um 22:47 schrieb Petter Reinholdtsen:
> 
> [Michael Biebl]
>> If you know any modules besides libnss_nis and libnss_ldap, please let
>> us know.
> 
> I do not _know_, but here is my best guess based on the output from
> 'apt-cache search libpam-', 'apt-cache search libnss-' and experience:
> 
> libpam-heimdal
> libpam-krb5-migrate-mit
> libpam-krb5
> libpam-radius-auth
> libpam-python (depending on script used, know debian edu have such script)
> libpam-script (depending on script used)
> libpam-slurm
> libpam-sshauth
> libpam-winbind
> libnss-lwres
> libnss-mdns
> libnss-pgsql2 (depending on server location)
> libnss-winbind
> 
> Might be useful to check those out.
> 
> It is unclear to me if the login daemon in question uses the PAM system
> too.

I don't think libpam-* is relevant here.

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?



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