`socks` outbound is a socks4/socks4a/socks5 client. ### Structure ```json { "outbounds": [ { "type": "socks", "tag": "socks-out", "server": "127.0.0.1", "server_port": 1080, "version": "5", "username": "sekai", "password": "admin", "network": "udp", "udp_over_tcp": false, "detour": "upstream-out", "bind_interface": "en0", "routing_mark": 1234, "reuse_addr": false, "connect_timeout": "5s", "tcp_fast_open": false, "domain_strategy": "prefer_ipv6", "fallback_delay": "300ms" } ] } ``` ### Socks Fields #### server ==Required== The server address. #### server_port ==Required== The server port. #### version The Socks version, one of `4` `4a` `5`. Socks5 used by default. #### username Socks username. #### password Socks5 password. #### network Enabled network One of `tcp` `udp`. Both is enabled by default. #### udp_over_tcp Enable the UDP over TCP protocol. ### Dial Fields #### detour The tag of the upstream outbound. Other dial fields will be ignored when enabled. #### bind_interface The network interface to bind to. #### routing_mark !!! error "" Linux only The iptables routing mark. #### reuse_addr Reuse listener address. #### connect_timeout Connect timeout, in golang's Duration format. A duration string is a possibly signed sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". #### domain_strategy One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`. If set, the server domain name will be resolved to IP before connecting. `dns.strategy` will be used if empty. #### fallback_delay The length of time to wait before spawning a RFC 6555 Fast Fallback connection. That is, is the amount of time to wait for IPv6 to succeed before assuming that IPv6 is misconfigured and falling back to IPv4 if `prefer_ipv4` is set. If zero, a default delay of 300ms is used. Only take effect when `domain_strategy` is `prefer_ipv4` or `prefer_ipv6`.