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diff --git a/man/ttyd.1 b/man/ttyd.1 new file mode 100644 index 0000000..83e8f63 --- /dev/null +++ b/man/ttyd.1 @@ -0,0 +1,258 @@ +.TH ttyd 1 "September 2016" ttyd "User Manual" + +.SH NAME +.PP +ttyd \- Share your terminal over the web + + +.SH SYNOPSIS +.PP +\fBttyd\fP [options] <command> [<arguments...>] + + +.SH Description +.PP +ttyd is a command\-line tool for sharing terminal over the web that runs in *nix and windows systems, with the following features: + +.RS +.IP \(bu 2 +Built on top of Libwebsockets with libuv for speed +.IP \(bu 2 +Fully\-featured terminal based on Xterm.js with CJK (Chinese, Japanese, Korean) and IME support +.IP \(bu 2 +Graphical ZMODEM integration with lrzsz support +.IP \(bu 2 +SSL support based on OpenSSL +.IP \(bu 2 +Run any custom command with options +.IP \(bu 2 +Basic authentication support and many other custom options +.IP \(bu 2 +Cross platform: macOS, Linux, FreeBSD/OpenBSD, OpenWrt/LEDE, Windows + +.RE + + +.SH OPTIONS +.PP +\-p, \-\-port <port> + Port to listen (default: 7681, use \fB\fC0\fR for random port) + +.PP +\-i, \-\-interface <interface> + Network interface to bind (eg: eth0), or UNIX domain socket path (eg: /var/run/ttyd.sock) + +.PP +\-c, \-\-credential USER[:PASSWORD] + Credential for Basic Authentication (format: username:password) + +.PP +\-u, \-\-uid <uid> + User id to run with + +.PP +\-g, \-\-gid <gid> + Group id to run with + +.PP +\-s, \-\-signal <signal string> + Signal to send to the command when exit it (default: 1, SIGHUP) + +.PP +\-a, \-\-url\-arg + Allow client to send command line arguments in URL (eg: +\[la]http://localhost:7681?arg=foo&arg=bar\[ra]) + +.PP +\-R, \-\-readonly + Do not allow clients to write to the TTY + +.PP +\-t, \-\-client\-option <key=value> + Send option to client (format: key=value), repeat to add more options + +.PP +\-T, \-\-terminal\-type + Terminal type to report, default: xterm\-256color + +.PP +\-O, \-\-check\-origin + Do not allow websocket connection from different origin + +.PP +\-m, \-\-max\-clients + Maximum clients to support (default: 0, no limit) + +.PP +\-o, \-\-once + Accept only one client and exit on disconnection + +.PP +\-B, \-\-browser + Open terminal with the default system browser + +.PP +\-I, \-\-index <index file> + Custom index.html path + +.PP +\-b, \-\-base\-path + Expected base path for requests coming from a reverse proxy (eg: /mounted/here) + +.PP +\-P, \-\-ping\-interval + Websocket ping interval(sec) (default: 300) + +.PP +\-6, \-\-ipv6 + Enable IPv6 support + +.PP +\-S, \-\-ssl + Enable SSL + +.PP +\-C, \-\-ssl\-cert <cert path> + SSL certificate file path + +.PP +\-K, \-\-ssl\-key <key path> + SSL key file path + +.PP +\-A, \-\-ssl\-ca <ca path> + SSL CA file path for client certificate verification + +.PP +\-d, \-\-debug <level> + Set log level (default: 7) + +.PP +\-v, \-\-version + Print the version and exit + +.PP +\-h, \-\-help + Print this text and exit + + +.SH Examples +.PP +ttyd starts web server at port 7681 by default, you can use the \-p option to change it, the command will be started with arguments as options. For example, run: + +.PP +.RS + +.nf +ttyd \-p 8080 bash \-x + +.fi +.RE + +.PP +Then open +\[la]http://localhost:8080\[ra] with a browser, you will get a bash shell with debug mode enabled. More examples: + +.RS +.IP \(bu 2 +If you want to login with your system accounts on the web browser, run \fB\fCttyd login\fR\&. +.IP \(bu 2 +You can even run a none shell command like vim, try: \fB\fCttyd vim\fR, the web browser will show you a vim editor. +.IP \(bu 2 +Sharing single process with multiple clients: \fB\fCttyd tmux new \-A \-s ttyd vim\fR, run \fB\fCtmux new \-A \-s ttyd\fR to connect to the tmux session from terminal. + +.RE + + +.SH SSL how\-to +.PP +Generate SSL CA and self signed server/client certificates: + +.PP +.RS + +.nf +# CA certificate (FQDN must be different from server/client) +openssl genrsa \-out ca.key 2048 +openssl req \-new \-x509 \-days 365 \-key ca.key \-subj "/C=CN/ST=GD/L=SZ/O=Acme, Inc./CN=Acme Root CA" \-out ca.crt + +# server certificate (for multiple domains, change subjectAltName to: DNS:example.com,DNS:www.example.com) +openssl req \-newkey rsa:2048 \-nodes \-keyout server.key \-subj "/C=CN/ST=GD/L=SZ/O=Acme, Inc./CN=localhost" \-out server.csr +openssl x509 \-sha256 \-req \-extfile <(printf "subjectAltName=DNS:localhost") \-days 365 \-in server.csr \-CA ca.crt \-CAkey ca.key \-CAcreateserial \-out server.crt + +# client certificate (the p12/pem format may be useful for some clients) +openssl req \-newkey rsa:2048 \-nodes \-keyout client.key \-subj "/C=CN/ST=GD/L=SZ/O=Acme, Inc./CN=client" \-out client.csr +openssl x509 \-req \-days 365 \-in client.csr \-CA ca.crt \-CAkey ca.key \-CAcreateserial \-out client.crt +openssl pkcs12 \-export \-clcerts \-in client.crt \-inkey client.key \-out client.p12 +openssl pkcs12 \-in client.p12 \-out client.pem \-clcerts + +.fi +.RE + +.PP +Then start ttyd: + +.PP +.RS + +.nf +ttyd \-\-ssl \-\-ssl\-cert server.crt \-\-ssl\-key server.key \-\-ssl\-ca ca.crt bash + +.fi +.RE + +.PP +You may want to test the client certificate verification with \fIcurl\fP(1): + +.PP +.RS + +.nf +curl \-\-insecure \-\-cert client.p12[:password] \-v https://localhost:7681 + +.fi +.RE + +.PP +If you don't want to enable client certificate verification, remove the \fB\fC\-\-ssl\-ca\fR option. + + +.SH Docker and ttyd +.PP +Docker containers are jailed environments which are more secure, this is useful for protecting the host system, you may use ttyd with docker like this: + +.RS +.IP \(bu 2 +Sharing single docker container with multiple clients: docker run \-it \-\-rm \-p 7681:7681 tsl0922/ttyd. +.IP \(bu 2 +Creating new docker container for each client: ttyd docker run \-it \-\-rm ubuntu. + +.RE + + +.SH Nginx reverse proxy +.PP +Sample config to proxy ttyd under the \fB\fC/ttyd\fR path: + +.PP +.RS + +.nf +location \~ ^/ttyd(.*)$ { + proxy\_http\_version 1.1; + proxy\_set\_header Host $host; + proxy\_set\_header X\-Forwarded\-Proto $scheme; + proxy\_set\_header X\-Forwarded\-For $proxy\_add\_x\_forwarded\_for; + proxy\_set\_header Upgrade $http\_upgrade; + proxy\_set\_header Connection "upgrade"; + proxy\_pass http://127.0.0.1:7681/$1; +} + +.fi +.RE + + +.SH AUTHOR +.PP +Shuanglei Tao <tsl0922@gmail.com> Visit +\[la]https://github.com/tsl0922/ttyd\[ra] to get more information and report bugs. |