Update Nagios Web Page Title
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 →
SEEI
Using nagios to monitor port status on ethernet switches
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 →
virsh list returns nothing
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 →
How to increase the size of tty font
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 →
Set time format to 24 hours at shell prompt
You type in date on your linx box and you get Tue Sep 5 5:08:49 PM CDT 2023 but you want it to read Tue Sep 5 17:08:49 CDT 2023 To make that happen execute localectl set-locale LC_TIME=”C.UTF-8″ Log off, … Continue reading →
Throttle processor speed in Linux
I have a system that runs in a environment that tends to be on the warm side. If the processor starts running at 3Ghz or higher, the processor starts some serious overheating. Applications I have running on this system do … Continue reading →
Unifi Controller Backup Settings
backup settings on a debian based unifi controller are saved in /var/lib/unifi/backup/autobackup
Continue reading →imjournal: filecreatemode is not set
You find the following line in your messages file imjournal: filecreatemode is not set, using default 0644 This is not a critical error. To eliminate this message edit /etc/rsyslog.conf and find the line module(load=”imjournal” fileCreateMode=”644″ StateFile=”imjournal.state”) note it might be … Continue reading →
How to Remove Hidden Network Adapters in Windows
Moving virtual guest Windows machines around between virtual hosts, sometimes the network adapters get lost or hidden. This creates a situation where you move a machine and it looks like it forgot the static ip address settings. So you go … Continue reading →
nmap quick reference
Quick Network Scan nmap -sn 192.168.0.0/24 OS detection with verbosity (-O -v) nmap -O -v 192.168.0.0/24 OS detection with verbosity and version scan (-sV -O -v) nmap -sV -O -v 192.168.0.0/24 Rogue DHCP server discovery nmap –script broadcast-dhcp-discover -e bond0 … Continue reading →