If you are one of those that plugs his iPhone or iPod Touch to the Ubuntu box and experiencing an overall slow down, try disabling the gvfs-afc-volume-monitor volume monitor. It will not affect the charging but definitely help keeping your nerve 
sudo chmod -x /lib/udev/iphone-set-info /usr/lib/gvfs/gvfs-afc-volume-monitor
Just switched to new Mac OS X Lion and adjusting to the reverse scrolling feature, I have started to have problems with the Ubuntu I am using at work. Although it is kind of a mind exercise, I realized that having 2 different scrolling directions at home and at work is not for me. So here is the thing that you should do to have Mac OS X Lion style scrolling at Ubuntu as well.
Just add this command to your startup (System -> Preferences -> Startup Apps):
xmodmap -e "pointer = 1 2 3 5 4"
Monit is a free open source utility for managing and monitoring, processes, files, directories and filesystems on a UNIX system. It is pretty easy to configure and even easier to use. It comes with a simple web server to monitor statuses of the alerts you set (with basic HTTP authentication). On Monit W’k’ you can find configuration examples for different services. Just in case you need a configuration example for Memcached instances, here is what you need.
You need to run memcached with -P parameter to create a pid file, which Monit can monitor (and use to kill the process if needed). The configuration below is for a memcached instance running in deamon mode with root identity, creating a pid file at /var/run/memcached.pid, using 512Mb of memory and listening on port 11211 at localhost. If monit cannot connect to port 11211 at localhost anytime, it will automatically stop the service and restart it. if CPU usage gets higher then 60% for 2 monitor cycles it will send an alert, and if it gets over 98% for 5 cycles it will automatically restart the instance.
1 2 3 4 5 6 7 8 | check process memcached with pidfile /var/run/memcached.pid start program = "/usr/local/bin/memcached -d -P /var/run/memcached.pid -u root -m 512 -l 127.0.0.1 -p 11211" stop program = "/bin/kill -9 `cat /var/run/memcached.pid`; rm /var/run/memcached.pid" if failed host 127.0.0.1 port 11211 then restart if cpu > 60% for 2 cycles then alert if cpu > 98% for 5 cycles then restart if 2 restarts within 3 cycles then timeout group cache |
Here is the command that you can use to find files larger than 2G (quite usefult for application with 2G filesize limit, like INN2 compiled without large file support.)
1 | find / -type f -size +2G -exec ls -lh {} \; | awk '{ print $8 ": " $5 }' |
