Linux Security Notices | A few links for Linux security alerts and notices:
CentOS Yum Automatic Updates
CentOS Yum Automatic Updates | How to set CentOS to use automatic updates 1. yum install yum-cron 2. chkconfig yum-cron on 3. /etc/init.d/yum-cron start That’s it! This job will run when regular cron.daily tasks are scheduled to run as specified in /etc/crontab.
Rsync Over SSH
Rsync Over SSH | Here is a quick and easy way for transferring files via rsync over ssh. rsync [options] ssh [local source directory] [user@server]:[destination on server] Example: # rsync -avPz /home/bob/workstuff bob@192.168.1.125:~/ a (recursive, hidden files incl, etc. – the standard rsync option) v verbose P show Progress z compress data during transfer This will make a copy
shellinabox With Apache Authentication Over HTTPS 443
shellinabox With Apache Authentication Over HTTPS 443 | shellinabox is an amazing web-based SSH client. It is very handy if you are not on a machine with a good terminal app, are filtered to not having port 22 available, or other uses such as a good web based shell to use while on the ChromeOS notebook. This guide shows how to setup and
Cron Only Email Errors
Cron Only Email Errors | To have your trusty cron job only email errors, simply add this designation to the end of your cron entry: >/dev/null Example: */30 * * * * /usr/local/bin/myscript.pl >/dev/null Optional more geeky details: There are two different kinds of output from any given command. “>” is the same as issuing “1>” which is the non-error
Install Ubuntu Linux on Chrome Cr-48
Install Ubuntu Linux on Chrome Cr-48 | Check out this excellent project which has scripted the process of getting Ubuntu onto your CR-48: http://cr-48-ubuntu.googlecode.com If you are up to more hacking, several have taken a leaked standard bios to then flash the CR-48 into a regular laptop.
Quick Hping How-To
Quick Hping How-To | hping is an excellent networking tool that can be used to send a crafted packet over a specific port to test firewall settings. In this example, I’ll show you how to do quick firewall port testing using hping3. First, install hping! Ubuntu has the latest hping3: sudo apt-get install hping3 Ok, now let’s send a
Annotate PDF Documents in OS X
Annotate PDF Documents in OS X | How can I edit a PDF document on OS X? FormulatePro is an excellent free and open source app for OS X that lets you annotate, edit, insert graphics, fill out forms, and otherwise manipulate PDF documents. For an example, here is a PDF that comes from OS X. I’ll open it with FormulatePro to
Watch YouTube Without Ads
Watch YouTube Without Ads | To watch YouTube videos without ads, commercials, and other annoyances, simply use the Chrome browser with this extension. This will enable the playback of videos in HTML5 and ad free. Sweet! PS: There are several other Chrome extensions that work similarly. If this particular one causes any trouble, try others. If you use Safari,
Strip or Remove HTML Tags
Strip or Remove HTML Tags | Here is how to easily strip or remove html tags from a file using sed. (View full post for proper syntax!) sed -e ‘s/]*>//g’ myfile.txt > myfilenew.txt This will strip tags from any sort of text file (html, csv, txt).