Articles in the system_administration category
Every time I restart my OS X Mountain Lion (10.9) laptop, it stops using the DNS
search domains I've added via the Network preferences pane. I have found that
restarting mDNSResponder fixes this issue. There are two ways to do this.
The first is a simple restart by sending …
On my web server, I keep my web sites in
/var/lib/www. Each web site has a
dedicated logs directory. Since logrotate is already rotating
Apache logs on the
server, I'd like to continue using that to rotate these log files as well. Below,
is a Puppet snippet
I stumbled across this problem when a daily cronjob on one of our Debian servers
complained about this. A lot. If you run across this on one of your systems, there
is a quick fix.
In our case, it turned out that
/usr/bin/mandb could not read
Thanks to an error report from one of my backup jobs, I noticed that
/Users/slap/Library/Logs/DiagnosticReports was filling up with Finder crash
reports (files of the type
*.crash). These files were being created once a
minute. Additionally, icons on my Desktop were blinking once a minute.
I decided the other night to begin doing some testing using my headless Mac Mini.
I use VirtualBox for all my
testing on my Mac OS X systems. Since the Mini is headless, I decided now was as
a good a time as any to start using VirtualBox via the …
On your Mac, the Brother ControlCenter software that let's you scan an image from
your Brother MFC to your computer is started at boot by launchd. Therefore, it
can be restarted from the command line.
For example, here is a list of processes controlled by
$ launchctl list | grep brother …
I have a fairly lightly loaded MySQL server with a few tables that are updated
every five minutes. Other than these updates, there are very few queries run
against the database. The data is queried just a few times per month. Ever so
often, one of the more complicated queries …
I don't know why SELinux problems seem so frustrating. The
problem almost certainly is related to the fact that there is frequently no error
message. This is exactly the problem I ran into while turning up a new
Apache web server on Red Hat Enterprise Linux 6 (RHEL6) with
While researching a problem with our Oracle Fast Recovery Area (FRA), I took note
of the more useful commands I used. This is from Oracle 11g R2 with the Real
Application Clusters (RAC) and Automatic Storage Management (ASM) options.
Show how much of the FRA is in use …
If you are unfamiliar with Oracle and setting up your vCloud Director Oracle
database, don't make the same mistake I made:
SQL> CREATE TABLESPACE "CLOUD_DATA" DATAFILE "/home/oracle/app/oracle/oradata/orcl/cloud_data01.dbf" SIZE 1000M AUTOEXTEND ON ;
CREATE TABLESPACE "CLOUD_DATA" DATAFILE "/home/oracle/app/oracle/oradata/orcl/cloud_data01.dbf …