Christopher Juckins

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centos_7_migration_notes

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centos_7_migration_notes [2019/10/03 20:20]
juckins
centos_7_migration_notes [2020/05/16 15:53] (current)
juckins
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   * Disable WiFi LAN connection with ''# nmcli radio wifi off''   * Disable WiFi LAN connection with ''# nmcli radio wifi off''
   * [[https://unix.stackexchange.com/questions/152691/how-to-disable-beep-sound-in-linux-centos-7-command-line|Disable bell]]   * [[https://unix.stackexchange.com/questions/152691/how-to-disable-beep-sound-in-linux-centos-7-command-line|Disable bell]]
 +
 +16 May 2020:
 +  * System randomly reboots when KVM toggles back and forth from Dell XPS 8930 (running CentOS 7 as 'tidewater') and HP Pavilion P7-1240
 +  * Noticed monitoring emails not being sent from tidewater; postfix not running and won't start. mysql error.
 +  * yum reinstall <mysql_package> that was failing
 +  * postfix started
 +  * Other trouble...had to completely uninstall PHP
 +  * Reinstall PHP - that is v5.4
 +  * Then upgrade to REMI php v7.4
 +  * Look in the bash setup script to install the needed php files
 +  * Restore /etc/php.ini from a local VM
 +  * restart httpd service
 +  * yum update had many instances of 'empty files'....it fixed itself
 +  * ldconfig gave errors for 2 more things
 +    * yum reinstall oniguruma5
 +    * yum reinstall oniguruma
 +  * reboot system, came up cleanly
 +  * may need to check if mysql connection limit needs to be increased
 +
  
 13 December 2016: 13 December 2016:
Line 591: Line 610:
  
 Set up local printer(s) Set up local printer(s)
 +  * Note that Brother has notes for the HL2170W at https://support.brother.com/g/b/downloadlist.aspx?c=us&lang=en&prod=hl2170w_all&os=127
 +    * RPM #1: brhl2170wlpr-2.0.2-1.i386.rpm
 +    * RPM #2: cupswrapperHL2170W-2.0.2-1.i386.rpm
 +    * Use 'lpstat' and 'lpq' to ensure it's a known destination printer
   * [[https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/sec-Printer_Configuration.html#sec-Starting_Print_Settings_Config|RHEL7 Print Settings]]   * [[https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/sec-Printer_Configuration.html#sec-Starting_Print_Settings_Config|RHEL7 Print Settings]]
   * yum install cups   * yum install cups
centos_7_migration_notes.1570148434.txt.gz ยท Last modified: 2019/10/03 20:20 by juckins