It seems that Ubuntu/Debian (or perhaps other distros as well) prefer IPv6 DNS records instead of IPv4 when applicable and some times this results in loss of connectivity or similar problems. I ran into this issue today while trying to update an old VPS with apt-get/aptitude. Specifically, security.ubuntu.com was being resolved in an unreachable IPv6… Read More »
What is SSL Cipher Suite? A cipher suite is a named combination of authentication, encryption, message authentication code (MAC) and key exchange algorithms used to negotiate the security settings for a network connection using the Transport Layer Security (TLS) / Secure Sockets Layer (SSL) network protocol Below bash script gets a list of supported cipher… Read More »
Problem Received error “Could not bind UDP syslog input to address /0.0.0.0:514, Failed to bind to: /0.0.0.0:514, Address already in use” when adding log input using UDP 514 (default syslog port). Explanation In UNIX/LINUX, assigned port 1024 and below require root privilege. Either you run graylog2 as root (not recommended) or follow below workaround. Solution… Read More »
Install xrdp apt-get install xrdp Configure xrdp GNOME apt-get install gnome-session-fallback echo gnome-session –session=gnome-fallback > ~/.xsession Xfce (xubuntu) echo xfce4-session > ~/.xsession LXDE (lubuntu) echo lxsession -s Lubuntu -e LXDE > ~/.xsession Incoming search terms:192 168 88 1/userman
VPN Mode (Layer 2 or Layer 3) Layer 2 = Use TAP interface, bridge your LAN to VPN Client. VPN client will reside within the same VPN segment. LAN Broadcast will works in this mode. Considered legacy, only Windows vpn client support this method. Layer 3 = Use TUN interface, VPN Client will be given… Read More »