Unix LINUX: how to find a string in a file

find /here-your-directory -type f -exec grep here-your-text {} \; -print

sudo find /here-your-directory -type f -print0 | xargs -0 grep here-your-text

MAC TFTP Server

MAC OS/X has a build-in TFTP server:

Start it with:

sudo launchctl load -F /System/Library/LaunchDaemons/tftp.plist
sudo launchctl start com.apple.tftpd

The default tftp file path is




/private/tftpboot




Stop it with:

sudo launchctl unload -F /System/Library/LaunchDaemons/tftp.plist

Snom VPN how to

In case you want to use a Snom via VPN

Export your openSense blabla.ovpn configuration.
Rename it to vpn.cnf
Create a pass.txt file with username and password for the VPN User
Create ca.crt file
Make a tar out of the files above call openvpn.tar

FreePBX and Postfix

In case your FreePBX can not send mails....

sudo postmap /etc/postfix/sasl_passwd
sudo postfix reload

Mailqueue anzeigen ( „less“,  falls zu viele Mails in der Schlange stehen)
mailq | less

oder

postqueue -p

gesamten Schlange löschen:
postsuper -d ALL

einzelne Mails aus der Schlange löschen:
postsuper -d ID
(Die ID erfährt man durch „mailq | less“)

Postfix zwingen, die Mails zu versenden
postqueue -f

Versuchen verzögerte (deferred) Mails abzuschicken (erzwingen)
postqueue -i ID

Verzögerte (deferred) Mails aus dem Queue löschen
postsuper -d ALL deferred

mySql und myPHPAdmin an alternate way to administrate

In case you need access to you mySQL DB on your Server try this:

https://www.adminer.org/de/

Just put it in /var/www/html/wp-access/

Change group
Make it executable

FreePDF problems with Windows 10

In case you use FreePDF and you have problems with the layout. Try this in a command shell as administrator:

ren "%windir%\System32\spool\drivers\x64\3\MSGENCOL.PPD" MSGENCOL.PPD.BACKUP

copy "%ProgramFiles(x86)%\FreePDF_XP\freepdfxp.ppd" "%windir%\System32\spool\drivers\x64\3\MSGENCOL.PPD"

net stop spooler

net start spooler

Ubuntu: Boot-Partition full

In case your /boot is used 100%

List your installed kernels:

sudo dpkg -l | grep linux-image

remove old files:

sudo apt-get purge linux-image-4.4.0-93-generic