Cyber Security Vulnerabilty Management
If you loaded your Raspberry Pi using the Raspbian operating system, chances are you may still be using the default user id “pi” with the password “raspberry”. This is a quick tutorial to show you how to change that. Continue reading “Change Password on Raspberry Pi”
I have been evaluating the idea of spinning up a Digital Ocean VM for my web hosting as a cost effective alternative to shared web hosting. Digital Ocean requires you to know how to understand operating systems, I just happen to be the right guy for the job. I wanted to field test my future setup on my Raspberry Pi to get an idea of how much time it is going to take and what I can do to tune it for maximum performance. All of my sites have been converted to WordPress, my desire was to build a LEMP (Linux Engine-X, MySQL and PHP) stack to accommodate this setup. Continue reading “Install WordPress and NGINX on Raspberry Pi”
Today the new Raspberry Pi 2 just dropped for the same price as it’s predecessor the Raspberry Pi. The new Pi has a more powerful processor and twice the amount of RAM. Continue reading “New Raspberry Pi 2”
Generally, adding a single user in Linux is pretty straight forward and easy to do. Passwords may be set by the administrator or randomly generated by going out to random.org or passwordgenerator.net. Continue reading “BASH: Create User Accounts with Random Password”
This morning, I received an email from TrueAbility regarding an interview that I did with them.
http://blog.trueability.com/2015/01/profile-linux-pro-russ-sanderlin/ Continue reading “Featured Linux Professional on TrueAbility”
Ran into an issue when using Red Hat Enterprise Linux up2date that it would fail to fetch a package. This was because mid way downloading the package, I aborted the operation using CTRL-C. When I was ready to resume the update, it returns a bad MD5 checksum error.
For this example, firefox was the affected package.
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[root@myserv ~]# up2date firefox Testing package set / solving RPM inter-dependencies... ######################################## error: rpmts_HdrFromFdno: MD5 digest: BAD Expected(81c2d6e93ee1f7ace498245b09bd61e8) != (aaa9b7a5ca1c69d470b3a2d3ea67fdc1) firefox-3.6.7-3.el4.x86_64. An error has occurred: Unable to fetch requested Package See /var/log/up2date for more information |
This error is triggered from a package that is broken, and is not uncommon to happen.
To correct this, go into /var/spool/up2date and remove the broken package.
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[root@myserv ~]# rm /var/spool/up2date/firefox-3.6.7-3.el4.x86_64.rpm |
Run up2date again, success!
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[root@myserv ~]# up2date firefox Testing package set / solving RPM inter-dependencies... ######################################## firefox-3.6.7-3.el4.x86_64. ########################## Done. |