Category Archives: Ubuntu

iptables flush and ssh

Fun lesson from today: don’t blindly clear/flush your iptables. If you are remotely managing a system, then make sure you run this: sudo iptables -P INPUT ACCEPT sudo iptables -P FORWARD ACCEPT sudo iptables -P OUTPUT ACCEPT before you run … Continue reading

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Ubuntu 16.04 Vnc and VirtualBox Resolution

As posted for 14.04, here are the steps to getting a larger VNC connection to your Ubuntu 16.04 virtual machine: Desktop Sharing Desktop Sharing is back as an item in 16.04 desktop. Just bring up the search, type “Desktop Sharing”. … Continue reading

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Stealth Updates and Unstable LSI Drivers

(Just FYI to everyone out there, since this is not easy to find right now.) If you’re seeing this message: mpt2sas0: log_info (0x31080000): original (PL), code (0x08), sub_code (0x0000) Then you need to visit http://mycusthelp.info/LSI/_cs/AnswerDetail.aspx?&inc=8484 The short answer: Avago Tech … Continue reading

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Ubuntu 14.04 Unity 3D RAM

My AMD Server seemed to be running out of RAM this morning. Checking the processes, it appeared that Unity 3D was using approximately 18G/32G (i.e. with no virtual machines running, the OS was still using 18G). Why? I don’t know … Continue reading

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Virtualbox Window Sizing

Ran across this in my (seems to be never ending) search for larger resolution virtual machines running Ubuntu. This time running under Virtualbox in a server connected to tiny monitor (1680×1050). From the VirtualBox OS (Ubuntu 14.04 LTS in my … Continue reading

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Ubuntu 14.04 VirtualBox Resolution

Want something other than 640×480 with Ubuntu running in VirtualBox 4.3.x? Follow these instructions. From http://codsplaice.blogspot.com/2014/02/a-quick-post-on-how-to-get-ubuntu-1404.html sudo apt-get update sudo apt-get upgrade sudo apt-get install linux-headers-$(uname -r) sudo apt-get install dkms build-essential Then mount the install CD image for the … Continue reading

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Vnc Vino Ubuntu Security fix

To enable remote desktop in Ubuntu when “Settings” no longer shows the icon for “Desktop Sharing” or “Remote Desktop”, type: $ vino-preferences When your VNC client fails to connect with an error like “No matching security types” or “No security … Continue reading

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Oracle Adds License to oracle-java7-installer and Now It Fails

For automatic provisioning that installs the official Oracle Java package, many paths lead to WebUpd8Team/java PPA and www.webupd8.org. Currently, the apt-get-install oracle-java7-installer command will fail, leaving a file at /var/cache/oracle-jdk7-installer/jdk-7u51-linux-*.tar.gz that is a plain .html file that contains “Sorry! In … Continue reading

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