Category Archives: Linux

Mailx: /usr/lib/sendmail: No such file or directory

By | August 30, 2016

Symptom Trying to send mail through mailx, echo “Testing mailx” | mailx -s “Testing 1 2 3” test@example.com yields the following error: /usr/lib/sendmail: No such file or directory “/home/username/dead.letter” 9/261 . . . message not sent. Possible Cause Name of mailx configuration file is set incorrectly. Solution Rename mailx configuration file from /etc/mail.rc to /etc/nail.rc… Read More »

Cinnamon Crashes after Replacing Video Card

By | January 21, 2016

Symptom: After removing an AMD graphics card (to use onboard integrated graphics), Cinnamon crashes repeatedly after logging in. Cause: Cinnamon may still be referencing the old video drivers. Solution: Uninstall the proprietary AMD graphic card drivers. Troubleshooting Steps: List installed AMD packages -> dpkg -l *fglrx* Remove the installed AMD packages and drivers with sudo… Read More »

Apt – Unmet Dependencies and Root at 99%

By | January 1, 2016

Symptom: When attempting to install a new package using apt, an error message regarding unmet dependencies is displayed and suggests using apt-get -f install to fix the problem. However, sudo apt-get -f install throws an error about no disk space. Cause: Updates have failed due to low disk space and resulted in dependency problems. Solution:… Read More »

Firefox Sometimes Crashes when Loading Google Maps

By | December 13, 2015

Symptom: Opening a new tab in Firefox and going to maps.google.com sometimes results in Firefox crashing. Firefox version: 42.0 OS: Linux Mint 17.2 Graphics card: AMD Radeon 7870 Graphics Driver: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1 (AMD/ATI display driver wrapper) Other symptoms: Sometimes small sections of text in Firefox are unreadable (blotched) until scrolling it off and back on… Read More »

Ubuntu Server Time Incorrect

By | November 25, 2015

Symptom: Ubuntu Server edition generates incorrect timestamps. For example, when issuing the date command or using the date() function in PHP. Cause: The server isn’t properly synchronized to an NTP (Network Time Protocol) server. Solution: Install an NTP time server sudo apt-get install ntp Troubleshooting Steps: Installed NTP server with sudo apt-get install ntp Tried… Read More »