There is a bug in some versions of snmp that cause the message systemstats_linux: unexpected header length in /proc/net/snmp. 237 != 224 to be posted to the logs. It is not an indication of a real problem. To prevent it … Continue reading →
The following has been tested on Fedora 39, 40 and 41 and Rocky 9 First – install the software sudo dnf -y install xrdp xorgxrdp-glamor edit /etc/xrdp/xrdp.ini Find the line [Xvnc]. Comment out that section by putting a # in … Continue reading →
You are running a linux system in text mode. You are using either Physical monitor and keybord Remote access console (example: Dell iDRAC) A Virtualized Console on qemu In any of the above applications – due to the monitor size … Continue reading →
First – install Zimbra Then execute: yum -y install epel-release /usr/bin/crb enable yum -y install certbot create a file named /usr/local/sbin/letsencrypt-zimbra #!/bin/bash FQDN=`hostname –fqdn` /usr/sbin/service zimbra stop /usr/bin/certbot certonly -d $FQDN –standalone -n –preferred-chain “ISRG Root X1” –agree-tos –register-unsafely-without-email –key-type … Continue reading →
If you are dork like me and like to see what is going on when your linux system boots (rather than a swirling circle) Excute sed s/rhgb//g -i.backup /etc/default/grub grub2-mkconfig -o /boot/grub2/grub.cfg and reboot Tested on Rocky 8
Continue reading →Installing EPEL sudo dnf -y install epel-release Dont use the epel-next repository. epel-next is meant for Stream, and packages from it may not function correctly.
Continue reading →I am getting 10’s to 100’s of the following lines in my logwatch email session-####.scope: Succeeded.: # Time(s) This apparently is being caused by the current version of cron and logwatch To suppress these messages in the logwatch email, edit … Continue reading →
I had a test machine I was setting up and I did not want it to be able to send out emails (tcp 25) Edit the file /etc/firewalld/firewalld.conf. Find the line FirewallBackend=nftables change it to read FirewallBackend=iptables execute systemctl restart … Continue reading →
I have found lynx to be a useful tool for quickly testing if a web site is up and running without having to start a web browser. I can ssh to a remote machine and then test the web site … Continue reading →
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 →