Bug 57054

Summary: Huge /var/log/lastlog due to high nfsnobody UID
Product: [Retired] Red Hat Linux Reporter: Jim Richardson <treyvan>
Component: nfs-utilsAssignee: Pete Zaitcev <zaitcev>
Status: CLOSED NOTABUG QA Contact: Brian Brock <bbrock>
Severity: low Docs Contact:
Priority: medium    
Version: 7.2   
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2001-12-03 21:24:03 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Jim Richardson 2001-12-03 21:22:17 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0; T312461)

Description of problem:
the lastlog file appears to be a flat file indexed by UID. Creating the 
nfsnobody account at a high value effectively cause nfsnobody UID - 
highest normal UID empty records to be insterted into the lastlog file.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. install latest nfs-utils*.rpm

	

Actual Results:  Size of lastlog on all systems jumped to nearly 2 MEG

Additional info:
Comment 1 Pete Zaitcev 2002-08-20 00:05:46 UTC 
This is normal. If you did not copy it, the file is going to
be holey - it uses very little space.

[zaitcev@niphredil linux-2.5.30-sparc]$ ls -l /var/log/lastlog
-rw-r--r--    1 root     root     19136220 Aug 19 15:50 /var/log/lastlog
[zaitcev@niphredil linux-2.5.30-sparc]$ du -ks /var/log/lastlog
44
/var/log/lastlog
[zaitcev@niphredil linux-2.5.30-sparc]$ 

I do not think anything can easily be done about it.
The default value of nfsnobody is selected to be compatible
with Solaris. I suppose someone can change lastlog to be
a db3 file, but that's not that trivial (consider locking,
and it adds one more dependancy for core utilities...)

Please poke Support if it causes any particular problems
besides the psychological shock from the ls -l output.