A little bit of wisdom
This serves to remind me how to initialise a new MySQL installation, if it doesn’t happen automatically. PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER ! To do so, start the server, then issue the following commands: /usr/bin/mysqladmin -u root password ‘new-password’ /usr/bin/mysqladmin -u root -h password ‘new-password’ Alternatively you can run: […]
In the console enter: In my gnuplot (bash) scripts I have: export GDFONTPATH=”/usr/share/fonts/truetype/ttf-dejavu/” export GNUPLOT_FONTPATH=”/usr/share/fonts/truetype/ttf-dejavu/” Other methods: export GDFONTPATH=”/your/font/directory/fonts/” before you start gnuplot. The fonts should be in the folder “/fonts”. To make this persistent across reboots, and to set the paths for fonts in postscript terminal, add lines similar to the ones below to […]
To change the default editor at the system level: sudo update-alternatives –config editor and then follow the onscreen prompts. If your editor isn’t on the list, do this first: update-alternatives –install /usr/bin/editor editor /usr/bin/vim 10
EDIT 05/05/2020 – I realised this guide is a little confusing so hopefully this is easier to follow. How Do I Tell If A Hard Disk Has Failed? If a disk has failed, you will probably find a lot of error messages in the log files, e.g. /var/log/messages or /var/log/syslog and if you set up […]
Rename files / folders with spaces: IFS=$’\n’;for f in `find .`; do file=$(echo $f | tr [:blank:] ‘_’); [ -e $f ] && [ ! -e $file ] && mv “$f” $file;done;unset IFS Rsync: rsync -r -a -v rsync://ns2/storage/www-srv /storage/ ^^^ from ns2 to new host – (run on new host) Rsync (local to remote) […]
Create the physical volume: pvcreate /dev/sdb Create the Volume Group: vgcreate vg_backuppc_storage /dev/sdb Create the logical volume: lvcreate -l +100%FREE vg_backuppc_storage Create a filesystem on the logical volume: mkfs.ext4 /dev/vg_backuppc_storage/lvol0 Resize the physical volume: (need to unmount the LV before doing this) pvresize /dev/sdb Extend the volume: lvextend -l +100%FREE -r /dev/vg_backuppc_storage/lvol0 Mount your new […]
Configure a forwarding address in Exchange shell: [PS] C:\Windows\system32>Get-Mailbox “User_Name” | fl ForwardingSMTPAddress,DeliverToMailboxandForward ForwardingSmtpAddress : smtp:user@example.com DeliverToMailboxAndForward : True DeliverToMailboxandForward specifies that email is delivered both to the users’ mailbox and the SMTP address. You need to create a contact to use the SMTP address. Oddly enough – when I set this – the ForwardingSmtpAddress […]
To define a new service in Nagios you need to do the following: 1) Add the necessary commands to /etc/nagios/objects/commands.cfg 2) Define the host and service in /etc/nagios/objects/templates.cfg 3) Define a host definition in /etc/nagios/objects/.cfg Command definition in commands.cfg define command{ command_name check-ssl-cert command_line $USER1$/check_ssl_certificate -H $ARG1$ -p $ARG2$ -c $ARG3$ -w $ARG4$ } The […]
Adding routes in Linux Setting a route in Linux or Unix is just a matter of utilizing the route command. To make routing modifications you have to be running as root or use sudo for super user privileges. This article will show you how to use "route add" and "route del" to add and remove […]
Leeched from http://www.cyberflunk.com/~nikm/cisco/masks.html (without permission) Cisco Netmasks, CIDR sizes, and Inverse Masks The address/netmask syntax of 172.16.35.0/255.255.255.0 should be familiar to anyone with some experience with IP routing, and is fairly easy to figure out address ranges given a calculator and a piece of scrap paper. There are other forms of addressing which are used […]
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