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Bug 2754 - Use numeric uid internally
: Use numeric uid internally
Status: NEW
: ThinLinc
VSM Server
: trunk
: PC Linux
: P2 Normal
: PoolTodo
Assigned To:
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Reported: 2008-04-07 13:08 by
Modified: 2017-01-03 11:09 (History)
Acceptance Criteria:


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Description From cendio 2008-04-07 13:08:51
Currently, we're identifying sessions internally in VSM Server/Agent with the
username-as-a-string. Using numeric uid instead would make us less vulnerable
to trouble in the name service switch subsystem. For example, if an agent has
lost its connection to LDAP , verifying session for "kalle" will fail, but
verifying session for 2004, kalle's uidNumber, will still work.

Some parts of VSM Agent still needs to know the username, but only during
session startup.
------- Comment #1 From cendio 2008-04-16 13:21:47 -------
This is not a trivial change. Lot's of places currently use the username, and
we'll probably still want most log messages to keep doing it, which means we'll
have to keep both the uid and the username around. 

There are also some API changes between VSM Server and Agent, but that's not a
big trouble. 
------- Comment #2 From cendio 2008-05-19 08:47:18 -------
This is a problem I'm seeing fairly often at home. Whenever the LDAP server is
a bit lazy, or temporarily down, I get stray Xvnc processes that make my life
difficult. This would probably get a lot worse in a cluster as we know that KDE
and GNOME do not like multiple instances on different machines, not to mention
how gracefully Mozilla handles multiple processes.
------- Comment #3 From cendio 2008-07-03 12:45:45 -------
See also bug 2839.
------- Comment #5 From cendio 2017-01-03 11:09:45 -------
Shadowing of users on case-insensitive systems is also broken because we do
string comparisons. Comparing UIDs is the proper way to handle those cases.