Archive for the ‘linux’ Category
Wednesday, July 21st, 2010
I'm using PHP53 package from the IUS Community repository. I've been trying to get phpunit to install, but it gives an error that it needs DOM install. It took me a little bit to figure this out, but I finally got it working. What you need is ...
Posted in linux, php, puppet | No Comments »
Friday, April 30th, 2010
Mount VirtualBox Additions disk through the VirtualBox UI.
yum install -y gcc kernel-devel-`uname -r`
mkdir /mnt/cdrom
mount -o ro -t iso9660 /dev/cdrom /mnt/cdrom
sh /mnt/cdrom/VBoxLinuxAdditions-amd64.run
Info found on tuxtraining.com
Posted in linux, virtual box | No Comments »
Thursday, April 15th, 2010
When you're in a shell, and you want to do 1 or 2 commands in another brand new shell, but don't feel like opening a new window, try using a subshell.
Here's an example:
~ jhaddad$ pwd
/Users/jhaddad
~ jhaddad$ ( cd /tmp/; touch bacon.txt )
~ jhaddad$ pwd
/Users/jhaddad
~ jhaddad$ ls -lah /tmp/bacon.txt
-rw-r--r-- ...
Posted in linux | 1 Comment »
Tuesday, January 5th, 2010
Copy apachectl (or symlink it) to /etc/init.d/httpd, and add these two lines at the end of the comment section:
# chkconfig: 2345 64 36
# description: script for starting and stopping httpd
chkconfig --add httpd
These commands will now work:
service httpd start
service httpd stop
Additionally, apache will start when the system boots. You can ...
Posted in linux | No Comments »
Tuesday, January 5th, 2010
To get a quick idea of what ports you have open on your local box, you can use nmap.
~ jhaddad$ nmap localhost
Starting Nmap 5.00 ( http://nmap.org ) at 2010-01-05 11:06 PST
Interesting ports on localhost (127.0.0.1):
Not shown: 499 closed ports, 492 filtered ports
PORT STATE SERVICE
80/tcp ...
Posted in apple, linux, tips | 2 Comments »
Sunday, October 25th, 2009
I've done this using CentOS, but I'm pretty sure the same thing will work with RedHat the exact same way.
Virtualization is now a commodity with several free tools available from Sun, VMWare and Xen. If you're like me, you like to create a new, clean VM for each experiment. ...
Posted in linux, virtual box | No Comments »
Saturday, October 24th, 2009
Note: The terminology used below also applies to VMWare. The screens are different, but the issue and the solution are the same.
When creating a new VM through VirtualBox, you might have a problem SSH'ing into the box. You also might notice you get a 10.0.x.xx type address, even ...
Posted in linux, virtual box | No Comments »
Sunday, May 3rd, 2009
One thing that always bothered me about complex desktop applications like Adobe Photoshop or Eclipse, or even Desktop Linux is finding out how to use the more advanced features (or, truthfully, some of the basic features). I've always liked community response, so I've been on a number of mailing ...
Posted in answerbag, linux, q&a | 1 Comment »
Tuesday, April 21st, 2009
Peeping into memcached.
Really interesting read about how to examine what's stored in memcached.
Peep uses ptrace to freeze a running memcached server, dump the internal key metadata, and return the server to a running state. If you have a good host ejection mechanism in your client, such as in ...
Posted in linux, mysql, tips | No Comments »
Tuesday, December 23rd, 2008
lsof works under linux and MacOS X and will help you figure out what files are open.
lsof | grep 'mysqld'
Posted in linux | 2 Comments »