Hi,
for server systems it isn’t necessary to start a graphical user interface because they usually run headless.
Continue reading Linux/systemd: Set default runlevel to console
Linux: Load iptables/firewall rules at startup
Hi,
when you set up firewall rules by iptables these rule are not persistent. This means they are volatile and will be deleted at reboot time.
Continue reading Linux: Load iptables/firewall rules at startup
Linux: Serial interface/terminal redirecting/forwarding over a TLS encrypted TCP/IP connection
Hi,
the scenario: A device with a serial console for example a raspberry pi, orange pi, esp8266 with tasmota, digital multimeter etc. runs headless, but you want to able to connect to the serial console with linux system here called serialServer over the network.
Continue reading Linux: Serial interface/terminal redirecting/forwarding over a TLS encrypted TCP/IP connection
C#: Import a rsa public key generated by openssl
Hi,
the C# (.NET 4) RSACryptoServiceProvider->ImportCspBlob methode has the ability to import RSA (public) keys.
Continue reading C#: Import a rsa public key generated by openssl
openssl: Sign a file and verify it.
Hi,
openssl can be used to create signature of a file and check the file against the signature to prevent unauthorized changes.