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# Linux ss Command [ Linux Command Reference](#) ss is a command in Linux used to view socket statistics information. Its function is similar to netstat, but it's faster and provides more detailed network connection status information. ss is the abbreviation for Socket Statistics, used to display and analyze the system's network connection status. ss can display detailed information about TCP, UDP, and UNIX sockets, and supports rich filtering functions for debugging networks and monitoring network connections. ### Syntax Format ss * **options**: Optional parameters used to specify filtering conditions or display methods. **Options Parameters Description:** * `-a, --all`: Display all sockets, including listening and non-listening ones. * `-t, --tcp`: Display only TCP sockets. * `-u, --udp`: Display only UDP sockets. * `-l, --listening`: Display only sockets in listening state. * `-p, --processes`: Display process information associated with sockets. * `-n, --numeric`: Display addresses in numeric form instead of resolving to hostnames. * `-r, --resolve`: Resolve hostnames to IP addresses. * `-s, --summary`: Display summary information of sockets. * `-4`: Display only IPv4 sockets. * `-6`: Display only IPv6 sockets. * `-i, --info`: Display detailed internal information.