[Xymon] checking for symlinks

Discussion:

oliver

2015-07-01 17:07:28 UTC

I'm using Xymon 4.3.21 on a linux host with mix of linux and solaris clients

Is checking whether a file is symlink supported in analysis.cfg? The
man page doesn't mention it but client_config.c does look like it
should work.

I have this in analysis.cfg
FILE /etc/.sudoers.local red type=symlink

My test goes red with the following statement:
File is a file - should be symlink

If I click on it, I see this:
[file:/etc/.sudoers.local]
type:100000 (file, symlink -> /bw/local/etc/.sudoers.local)
mode:440 (-r--r-----)
linkcount:1
owner:0 (root)
group:0 (root)
size:102
clock:1435770054 (2015/07/01-17:00:54)
atime:1336161370 (2012/05/04-19:56:10)
ctime:1377011564 (2013/08/20-15:12:44)
mtime:1377011564 (2013/08/20-15:12:44)

To prove it's a symlink:
# ls -l /etc/.sudoers.local
lrwxrwxrwx 1 root root 28 Aug 2 2011
/etc/.sudoers.local -> /bw/local/etc/.sudoers.local

What am I doing wrong?

J.C. Cleaver

2015-07-01 18:51:55 UTC

Permalink

Post by oliver
I'm using Xymon 4.3.21 on a linux host with mix of linux and solaris clients
Is checking whether a file is symlink supported in analysis.cfg? The
man page doesn't mention it but client_config.c does look like it
should work.
I have this in analysis.cfg
FILE /etc/.sudoers.local red type=symlink
File is a file - should be symlink
[file:/etc/.sudoers.local]
type:100000 (file, symlink -> /bw/local/etc/.sudoers.local)
mode:440 (-r--r-----)
linkcount:1
owner:0 (root)
group:0 (root)
size:102
clock:1435770054 (2015/07/01-17:00:54)
atime:1336161370 (2012/05/04-19:56:10)
ctime:1377011564 (2013/08/20-15:12:44)
mtime:1377011564 (2013/08/20-15:12:44)
# ls -l /etc/.sudoers.local
lrwxrwxrwx 1 root root 28 Aug 2 2011
/etc/.sudoers.local -> /bw/local/etc/.sudoers.local
What am I doing wrong?

I believe this is a bug. Might never have really been fully implemented,
actually.

Can you try the following patch (untested) and see if it works for you?

Regards,

-jc

oliver

2015-07-01 22:44:25 UTC

Permalink

Applied patch to source, recompiled and installed but no change in
behaviour I'm afraid

Post by J.C. Cleaver

I believe this is a bug. Might never have really been fully implemented,
actually.
Can you try the following patch (untested) and see if it works for you?
Regards,
-jc

Jeremy Laidman

2015-07-02 01:54:24 UTC

Permalink

It'd be good to have this feature working.

In the mean time, you could use "FILE" (in analysis.cfg) to check for the
existence of a file, and use a backtick command (in client-local.cfg) to
specify the filename only if it's a symlink. Example:

analysis.cfg:

FILE /etc/.sudoers.local red

client-local.cfg:

file:`find /etc/.sudoers.local -type l`

If the file is a symlink, it will exist. If it's not a symlink, the Xymon
client won't see it, and you'll get a RED as if it didn't exist.

Cheers
Jeremy

Post by oliver
Applied patch to source, recompiled and installed but no change in
behaviour I'm afraid

Post by J.C. Cleaver

I believe this is a bug. Might never have really been fully implemented,
actually.
Can you try the following patch (untested) and see if it works for you?
Regards,
-jc

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oliver

2015-07-02 13:00:44 UTC

Permalink

Post by Jeremy Laidman
In the mean time, you could use "FILE" (in analysis.cfg) to check for the
existence of a file, and use a backtick command (in client-local.cfg) to
FILE /etc/.sudoers.local red
file:`find /etc/.sudoers.local -type l`
If the file is a symlink, it will exist. If it's not a symlink, the Xymon
client won't see it, and you'll get a RED as if it didn't exist.

Thanks! Test is successful.