First check if group already exist, if not create it sudo getent group | grep libvirt If it doesn’t exist, add it as a system group. sudo groupadd –system libvirt Add your user account to the group and log onto … Continue reading →
The following is the way to perform cold KVM migration. A cold migration involves shutting down the guest server during the migration. Generally speaking, to move KVM VM, you need to copy all the VM data from the source host … Continue reading →
Update – I installed fedora 41 and my original fix below did not work any more New fix firewall-cmd –permanent –new-policy tftp-client-data firewall-cmd –permanent –policy tftp-client-data –add-ingress-zone HOST firewall-cmd –permanent –policy tftp-client-data –add-egress-zone ANY firewall-cmd –permanent –policy tftp-client-data –add-service tftp … Continue reading →
I have several Nagios web sites I monitor. Problem is you open multiple tabs in firefox and all you see is the Nagios icon and the word “Nagios” so I cant tell which tab is for which server. So I … Continue reading →
First, we need to identify the id of the ports we want to monitor. On the console of the machine you are running nagios, execute the following commands snmpwalk -v 1 -c MySNMPCommunity my.switch.ip.address ifDescr you will get something like … Continue reading →
I did a “dnf update” on a Fedora 38 and after rebooting executing “virsh list –all” I got: Id Name State ————————- I tried running virt-manager and it had problems connecting – it would list my virtual machines, then disconnect … 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 →
Installing a certificate on Zimbra 9 and I get the following error message: ** Creating file ‘/opt/zimbra/ssl/zimbra/jetty.pkcs12’ ERROR: openssl pkcs12 export to ‘/opt/zimbra/ssl/zimbra/jetty.pkcs12’ failed(1): Error creating PKCS12 MAC; no PKCS12KDF support? Use -nomac if MAC not required and PKCS12KDF support … Continue reading →
On the machine you are trying to start zimbra on su zimbra zmlocalconfig -e ldap_starttls_required=false zmlocalconfig -e ldap_starttls_supported=0 then start zimbra After that – go look at all your certs on all the zimbra servers because you have something you … Continue reading →