Why is mondoDb server start crashing after I upgrade it from 2.2. i have noticed recently that mongoDb ser on Linux Ubuntu started crashing after I upgrade Mongodb 2.2 to 2.6.6 the latest version. The old version was working fine before the upgrade. What could be the cause of the behavior?

What effects will leap server has on Ubuntu server with Network Time Protocol daemon (NTPd)? Now that Linux is planning of adding leap seconds to its server in coming months, what are the implications for Linux server? How best can user prepare for this anticipated addition? How worried should user of NTPd be?

I want to update a entertain software, however I do not know how to get about the sudo command in Linux terminal, How do I get about this? is there a manual for the sudo commands for beginner that explains the different sudo commands and their interpretation? where can I get this sudo- command manual?

I have a windows based .exe file is there a possibility that I can Install it on my Linux mint? How can I achieve this, its a software that is not available for Linux but I like the Linux environment? Is it possible to convert a .exe file to a debian version for Linux?

I have a volume that was decrypted in windows using a software, true crypt is it possible to have the volume decrypted in Linux, ? I have files in there that I would like to get a hold onto? Is there a truecrypt version for Ubuntu? Can I get a debian version?

How can I compile apache to use previous configuration in Linux? I need upgraded to apache 2.4 from apache 2.2 and I want to keep my previous configurations such as layout, configuration option. How do I accomplish this task? Is my previous configuration is not saved, can the previous configuration be used?

Why am I getting this error: “Connecting device on port 0 fail” when I tried to install Solaris 11.2 on Supermicro 7048- CRT4 server from Live disk? At the beginning of the installation, it looks for devices after which the error: “Connecting device on port 0 fail” message appears and installation usually stale. How do I disable Port 0 in the BIOS?

Why are all the exec files in my git repos clone losing their exec bit? I have laptop running Arch Linux and I have some git repos that is clone under ~/git but the exe files in this clone usually lose their exe bit. This behavior only affects the exe files in the clone how an I fix this problem?

Why am I getting this terminal error ‘No such file or directory’ after I launch terminal? I recently shut down my system after I finish what I was doing, but when I power on the system this morning and launch terminal am getting this error. Although I have not noticed any difficulty using my system. How can I fix this problem?

How do you create a bootable disk from a USB drive and what software can I use? I need to install Linux mint onto a mini laptop that has no DVD drive. Is this method of installation faster than the ordinary disk that is usually used for installation and can this infect my computer when installation process is going on.