Date: Thu, 3 Sep 2009 17:31:45 +0200 From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net> To: freebsd-questions@freebsd.org Cc: stan <stanb@panix.com> Subject: Re: What invokes cricket on FreeBSD Message-ID: <200909031731.45563.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> In-Reply-To: <20090903144228.GA5919@teddy.fas.com> References: <20090903114857.GA635@teddy.fas.com> <200909031622.43318.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> <20090903144228.GA5919@teddy.fas.com>
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On Thursday 03 September 2009 16:42:28 stan wrote: > On Thu, Sep 03, 2009 at 04:22:43PM +0200, Mel Flynn wrote: > > On Thursday 03 September 2009 15:41:07 stan wrote: > > > On Thu, Sep 03, 2009 at 09:33:35AM -0400, stan wrote: > > > > On Thu, Sep 03, 2009 at 09:22:56AM -0400, stan wrote: > > > > > On Thu, Sep 03, 2009 at 01:43:15PM +0100, Matthew Seaman wrote: > > > > > > stan wrote: > > > > > > > On Thu, Sep 03, 2009 at 07:48:57AM -0400, stan wrote: > > > > > > >> I have inherited a system that uses Cricket on FreeBSD to do > > > > > > >> some data collection. I have set this up myself in the distnat > > > > > > >> past, but this time I asked a contractor to set it up. I no > > > > > > >> longer have access to this contractor, and the toher day, we > > > > > > >> shut down the system this was running on, and when we rebooted > > > > > > >> the system, cricket id not resume collecting data. > > > > > > >> > > > > > > >> I don't see anyhting in /usr/local/etc/rc.d to start it up, > > > > > > >> nor do I see anything in /etc/crontag. I don't seen any > > > > > > >> processes owned by cricket running. > > > > > > >> > > > > > > >> In FreeBSD, how is this process noramally invoked? > > > > > > > > > > > > > > Sorry to reply to my own message, but I have more data. I did > > > > > > > find > > > > > > > > > > > > > > -rw------- 1 root wheel 288 Jan 12 2009 > > > > > > > /var/cron/tabs/cricke > > > > > > > > > > > > > > Which is, I am failry certain, what is _intended_ to invoke the > > > > > > > cricket process. However, acording to the cricket logs, the > > > > > > > last time I have an entry is Aug 29th, which was when the > > > > > > > machine was shut down. So, I decided to try running this > > > > > > > command by hand. Now, to do so I need to be the cricket user, > > > > > > > so I tried to su - cricket. I was told that this user was not > > > > > > > avaialble. Looking in /etc/passwd. I found that this users > > > > > > > shell was listed as /usr/sbin/nologin. I edited /etc/paswd to > > > > > > > change this to /nin/sh, but I still get the smae error message > > > > > > > when I try to su to that user. > > > > > > > > > > > > > > What do I need to change to be able to su to this suer, and > > > > > > > might this be the reason tha it's crontab entry is notbeing > > > > > > > run? > > > > > > > > > > > > Try: > > > > > > > > > > > > # su -m cricket > > > > > > > > > > > > although the best way to examine and/or modify that user's > > > > > > crontab is: > > > > > > > > > > > > # crontab -e -u cricket > > > > > > > > > > OK, I was able to execute the cricket collector caoomand bu using > > > > > the su - format, and it ran corectly. > > > > > > > > > > Cany anyone sugest what to check to see why cron is not executing > > > > > this command? I see no evidence of it's running in either the > > > > > cricket logs' or cron's logs. > > > > > > > > > > Thanks. > > > > > > > > Repkying to my own message again :-( > > > > > > > > > > > > OK, I found in the cron man page the following: > > > > > > > > Before running a command from a per-account crontab file, cron > > > > checks the status of the account with pam(3) and skips the command > > > > if the account is unavailable, e.g., locked out or expired. > > > > > > > > So, now the question is, how do I unlock that user? > > > > > > This gets strnager. I found the pw cammand, which should do thatm but: > > > > > > pnoc# pw unlock cricket > > > pw: user 'cricket' is not locked > > > > > > So, how come: > > > > > > pnoc# su - cricket > > > This account is currently not available. > > > > Cause cricket doesn't have a valid home directory. However, you can > > simply copy the /var/cron/tabs/cricket to /tmp. Remove the time colums, > > then run: su -m cricket /usr/bin/env -i HOME=/nonexistent > > PATH=/bin:/usr/bin \ /bin/sh /tmp/cricket > > > > That's the best approximation of how cron runs the commands. If you don't > > see anything in the cron logs however, it may be an issue with the > > timestamps specified not yielding any runs. Then it would help to see the > > actual crontab file. > > Hmm, but I think it does : > > pnoc# grep cricket /etc/passwd > cricket:*:141:80:Cricket Monitoring > User:/usr/local/cricket:/usr/sbin/nologin /usr/sbin/nologin. I guess you edited master.passwd and didn't use the proper tools (vipw or run pwd_mkdb after using a plain editor). > As far as cron logs, I am _now_ gettting an entry that looks like cron is > executing the collector: > > Sep 3 10:40:00 pnoc /usr/sbin/cron[80979]: (cricket) CMD > (/usr/local/cricket/cricket/collect-subtrees normal) > > But, still not getting anything in cricket's logs: > > ls: No match. > pnoc# ls -l /usr/local/cricket/*logs > total 2812 > -rw-r--r-- 1 cricket www 74098 Sep 3 09:17 normal.0 > > The 9:17 time is from a manual run of the collector. > > I must admit, I am not certain waht to check next. Run: su -m cricket /usr/bin/env -i HOME=/usr/local/cricket PATH=/bin:/usr/bin /usr/local/cricket/cricket/collect-subtrees normal Then check output. -- Mel
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