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97 lines
2.6 KiB
Groff
97 lines
2.6 KiB
Groff
.TH udppm "8" "May 2026" "3proxy 0.9" "Universal proxy server"
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.SH NAME
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.B udppm
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\- UDP port mapper
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.SH SYNOPSIS
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.BR "udppm " [ -ds ]
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.IB \fR[ -l \fR[ \fR[ @ \fR] logfile \fR]]
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.IB \fR[ -i internal_ip\fR]
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.IB \fR[ -e external_ip\fR]
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.I local_port remote_host remote_port
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.SH DESCRIPTION
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.B udppm
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forwards datagrams from local to remote UDP port
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.SH OPTIONS
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.TP
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.B -I
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Inetd mode. Standalone service only.
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.TP
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.B -d
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Daemonize. Detach service from console and run in the background.
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.TP
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.B -t
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Be silenT. Do not log start/stop/accept error records.
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.TP
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.B -e
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External address. IP address of the interface the proxy should initiate datagrams
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from.
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By default, the system will decide which address to use in accordance
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with the routing table.
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.TP
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.B \-ni\fIPATH\fR
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(Linux only) Switch to the network namespace identified by
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.I PATH
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before opening the listening socket. The current namespace is saved and restored
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immediately after binding, so outgoing connections run in the original namespace
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unless
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.B \-ne
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is also given.
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.TP
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.B \-ne\fIPATH\fR
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(Linux only) Switch to the network namespace identified by
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.I PATH
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after the listening socket has been bound (and after restoring from
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.B \-ni
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if applicable). Both options accept any namespace file path
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(e.g.\& \fI/var/run/netns/myns\fR or \fI/proc/PID/ns/net\fR)
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and require \fBCAP_SYS_ADMIN\fR.
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.TP
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.B -i
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Internal address. IP address the proxy accepts datagrams to.
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By default, connections to any interface are accepted. It\'s usually unsafe.
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.TP
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.B -l
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Log. By default logging is to stdout. If
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.I logfile
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is specified logging is to file. Under Unix, if
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.RI \' @ \'
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precedes
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.IR logfile ,
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syslog is used for logging.
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.TP
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.B -s
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Single packet. By default, only one client can use the udppm service, but
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if -s is specified, only one packet will be forwarded between client and server.
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This allows the service to be shared between multiple clients for single-packet services
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(for example, name lookups).
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.TP
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.B -S
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Increase or decrease stack size. You may want to try something like -S8192 if you experience 3proxy
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crashes.
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.SH ARGUMENTS
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.TP
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.I local_port
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- port udppm accepts datagrams on
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.TP
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.I remote_host
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- IP address of the host datagrams are forwarded to
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.TP
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.I remote_port
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- remote port datagrams are forwarded to
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.SH CLIENTS
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Any UDP-based application can be used as a client. Use
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.I internal_ip
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and
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.I local_port
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as the destination in the client application. All datagrams are forwarded to
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.IR remote_host : remote_port
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.SH BUGS
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Report all bugs to
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.BR 3proxy@3proxy.org
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.SH SEE ALSO
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3proxy(8), proxy(8), ftppr(8), socks(8), pop3p(8), udppm(8), syslogd(8),
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.br
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https://3proxy.org/
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.SH AUTHORS
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3proxy is designed by Vladimir Dubrovin <vlad@3proxy.org>
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