How to create a LUKS Headerbackup of your crypted devices: get a list of all crypto_luks devices lsblk –fs cryptsetup luksHeaderBackup /dev/sda3 –header-backup-file headerbackup_sda3.luks cryptsetup luksHeaderBackup /dev/md0 –header-backup-file headerbackup_md0.luks
You can hide the client/sender ip and the user agent in the postfix main.cf Thats the way you do it nano /etc/postfix/main.cf smtp_header_checks = pcre:/etc/postfix/smtp_header_checks nano /etc/postfix/smtp_header_checks /^Received:.*with ESMTPSA/ IGNORE /etc/init.d/postfix restart Before The whole client ip was displayed. Received:
Tutorial: Compile Keepassx under Ubuntu Linux In the current apt sources there is just the version 1 available. When you compile the tarball manually you’ll get the newest version 2. Download Source code: https://www.keepassx.org/downloads/ tar xfv keepassx-2.0.2.tar.gz cd keepassx-2.0.2/ mkdir build cd
How to hide the apache2 version number. Due to security reasons it is recommended to hide all of the server versions at Linux software. #add this to the end of the file nano /etc/apache2/apache2.conf ServerSignature Off
How to su to a user in Linux with the bin/false or nologin shell. This is just working with a specific parameter. Solution
Hier eine Anleitung um die DHT22/AM2302 Luftfeuchtigkeits– und Temperatursensoren am Raspberry Pi auszulesen. Temperaturanzeige in Grafana Hardware Verkabelung am Raspberry Pi Hier die Verkabelung des Luftfeuchtigkeits-/Temperatursensors am Raspberry Pi. Der Widerstand ist hierbei 4,7 Kiloohm. Software apt-get install git-core git
Raspberry Pi – Luftfeuchtigkeit/Temperatur messen (Sensor) Weiterlesen »
Hier eine Anleitung für die DS18B20/DS18S20 Temperatursensoren. So könnt Ihr diesen Sensor am Raspberry Pi anschließen und auch auslesen: Hardware Habe noch einige komplett neue Restbestände (DS18B20, Widerstand, Jumper Wire Set) – Einfach per eMail melden 10pcs DS18B20 1-Wire Digital Thermometer
I wondered why i have 16 /dev/ram0-15 devices in my fdisk -l output. Then i figured out that it’s normal if you have a fully encrypted system. So here’s the explanation: The RAM disk driver is a way to use
Apache2 Error code: SSL_ERROR_RX_RECORD_TOO_LONG An error occurred during a connection to monitoring.mattionline.lan. SSL received a record that exceeded the maximum permissible length. Solution #the https vhost was disabled. had to activate it manually a2ensite default-ssl systemctl restart apache2
Configuration of a reverse proxy from the apache2 webserver to another webserver / website: a2enmod proxy a2enmod proxy_http nano /etc/apache2/sites-available/000-default.conf <VirtualHost *:80> ProxyPreserveHost On ProxyPass / http://192.168.2.132:3000/ ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost>