The following applies to version 7 and higher To have your system start up in text mode systemctl set-default multi-user.target To have your system start up as a graphical target systemctl set-default graphical.target Start in Single User systemctl set-default rescue.target … Continue reading →
If you have a few .img files coming as disk images from devices like floppies, CDs, DVDs, SD cards, etc, you will realize that you cannot mount the in Linux, because they contain a file system that has to be … Continue reading →
You log onto your linux system and you get the message “Could not apply the sotred configuration to monitors” Start a bash prompt cd ~/.config mv monitors.xml monitors.xml.zzz Log off and log back on again
Continue reading →Hand out the time zone from your ISC DHCP Server Add the following lines to the top of your dhcpd.conf file option PCode code 100 = text; option TCode code 101 = text; option PCode “EST5EDT4,M3.2.0/02:00,M11.1.0/02:00”; option TCode “America/NewYork”; … Continue reading →
I set up my LetsEncrypt renewal cron to run just once a week. This causes certwatch to trip because it is set to alarm on any cert that needs to be renewed in < 30 days. to adjust the Certwatch … Continue reading →
You will need console access – either a physical keyboard and monitor locally, or using the Virtual Machine remote console. You will need to be able to control the boot process. Reboot the machine. When the bootloader selection screen … Continue reading →
If you have sufficient disk space and you are running Code42/Crashplan pro and you get “Error: No space left on device” when you use systemctl, this may be the fix Linux performs real-time file watching using the inotify API. Inotify … Continue reading →
I have a few boxes that have built in wifi and I dont need it turned on. So I turn it off using the following command nmcli radio wifi off To make sure the wifi radio stays turned off in … Continue reading →
I wanted to do some testing with some forms on my web site, but I did not want to deal with the resultant output going to email. I added the following line to the /etc/postfix/transport file fubar.com discard Then I … Continue reading →
You go to ssh to a system and you get the following message @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: POSSIBLE DNS SPOOFING DETECTED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ The ECDSA host key for server.domain.com has changed, and the key for the corresponding IP address 10.128.15.2 is … Continue reading →