pending timers NAME /proc/timer_list - pending timers DESCRIPTION /proc/timer_list (since Linux 2.6.21) This read-only file exposes a list of all currently pending (high-resolution…Socket unit configuration NAME systemd.socket - Socket unit configuration SYNOPSIS socket .socket DESCRIPTION A unit configuration file whose name ends in ".socket" encodes informa…query the debconf database NAME debconf-show - query the debconf database SYNOPSIS debconf-show packagename [...] [--db=dbname] debconf-show --listowners [--db=dbname] debconf-show…The D-Bus interface of systemd-logind NAME org.freedesktop.login1 - The D-Bus interface of systemd-logind INTRODUCTION systemd-logind.service (8) is a system service that keeps tra…obtaining information about sockets NAME sock_diag - obtaining information about sockets SYNOPSIS #include <sys/socket.h> #include <linux/sock_diag.h> #include <linux/unix_diag.h> …listen for a notification NAME LISTEN - listen for a notification SYNOPSIS LISTEN channel DESCRIPTION LISTEN registers the current session as a listener on the notification channel…The D-Bus interface of systemd-timedated NAME org.freedesktop.timedate1 - The D-Bus interface of systemd-timedated INTRODUCTION systemd-timedated.service (8) is a system service th…OpenSSL Guide: Writing a simple blocking QUIC server NAME ossl-guide-quic-server-block - OpenSSL Guide: Writing a simple blocking QUIC server SIMPLE BLOCKING QUIC SERVER EXAMPLE Th…deny or allow services based on an arbitrary file NAME pam_listfile - deny or allow services based on an arbitrary file SYNOPSIS pam_listfile.so item=[tty|user|rhost|ruser|group|sh…POSIX timers NAME /proc/pid/timers - POSIX timers DESCRIPTION /proc/ pid /timers (since Linux 3.10) A list of the POSIX timers for this process. Each timer is listed with a line th…I/O event notification facility NAME epoll - I/O event notification facility SYNOPSIS #include <sys/epoll.h> DESCRIPTION The epoll API performs a similar task to poll (2): monitori…another utility to investigate sockets NAME ss - another utility to investigate sockets SYNOPSIS ss [ options ] [ FILTER ] DESCRIPTION ss is used to dump socket statistics. It allo…arbitrary TCP and UDP connections and listens NAME nc — arbitrary TCP and UDP connections and listens SYNOPSIS nc [ -46bCDdFhklNnrStUuvZz ] [ -I length ] [ -i interval ] [ -M ttl ]…arbitrary TCP and UDP connections and listens NAME nc — arbitrary TCP and UDP connections and listens SYNOPSIS nc [ -46bCDdFhklNnrStUuvZz ] [ -I length ] [ -i interval ] [ -M ttl ]…arbitrary TCP and UDP connections and listens NAME nc — arbitrary TCP and UDP connections and listens SYNOPSIS nc [ -46bCDdFhklNnrStUuvZz ] [ -I length ] [ -i interval ] [ -M ttl ]…arbitrary TCP and UDP connections and listens NAME nc — arbitrary TCP and UDP connections and listens SYNOPSIS nc [ -46bCDdFhklNnrStUuvZz ] [ -I length ] [ -i interval ] [ -M ttl ]…TCP protocol NAME tcp - TCP protocol SYNOPSIS #include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h> tcp_socket = socket(AF_INET, SOCK_STREAM, 0); DESCRIPTION Thi…generate a notification NAME NOTIFY - generate a notification SYNOPSIS NOTIFY channel [ , payload ] DESCRIPTION The NOTIFY command sends a notification event together with an optio…implementation of a doubly linked list NAME LIST_EMPTY, LIST_ENTRY, LIST_FIRST, LIST_FOREACH, LIST_HEAD, LIST_HEAD_INITIALIZER, LIST_INIT, LIST_INSERT_AFTER, LIST_INSERT_BEFORE, LI…implementation of a doubly linked list NAME LIST_EMPTY, LIST_ENTRY, LIST_FIRST, LIST_FOREACH, LIST_HEAD, LIST_HEAD_INITIALIZER, LIST_INIT, LIST_INSERT_AFTER, LIST_INSERT_BEFORE, LI…