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diff --git a/README_FILES/UUCP_README b/README_FILES/UUCP_README new file mode 100644 index 0000000..1368eb3 --- /dev/null +++ b/README_FILES/UUCP_README @@ -0,0 +1,121 @@ +PPoossttffiixx aanndd UUUUCCPP + +------------------------------------------------------------------------------- + +UUssiinngg UUUUCCPP oovveerr TTCCPP + +Despite a serious lack of sex-appeal, email via UUCP over TCP is a practical +option for sites without permanent Internet connections, and for sites without +a fixed IP address. For first-hand information, see the following guides: + + * Jim Seymour's guide for using UUCP over TCP at http://jimsun.LinxNet.com/ + jdp/uucp_over_tcp/index.html, + * Craig Sanders's guide for SSL-encrypted UUCP over TCP using stunnel at + http://taz.net.au/postfix/uucp/. + +Here's a graphical description of what this document is about: + + LAN to Internet + Local network <---> UUCP <--- UUCP ---> to UUCP <---> Internet + Gateway Gateway + +And here's the table of contents of this document: + + * Setting up a Postfix Internet to UUCP gateway + * Setting up a Postfix LAN to UUCP gateway + +SSeettttiinngg uupp aa PPoossttffiixx IInntteerrnneett ttoo UUUUCCPP ggaatteewwaayy + +Here is how to set up a machine that sits on the Internet and that forwards +mail to a LAN that is connected via UUCP. See the LAN to UUCP gateway section +for the other side of the story. + + * You need an rrmmaaiill program that extracts the sender address from mail that + arrives via UUCP, and that feeds the mail into the Postfix sseennddmmaaiill + command. Most UNIX systems come with an rrmmaaiill utility. If you're in a + pinch, try the one bundled with the Postfix source code in the aauuxxiilliiaarryy// + rrmmaaiill directory. + + * Define a pipe(8) based mail delivery transport for delivery via UUCP: + + /etc/postfix/master.cf: + uucp unix - n n - - pipe + flags=F user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail + ($recipient) + + This runs the uuuuxx command to place outgoing mail into the UUCP queue after + replacing $nexthop by the next-hop hostname (the receiving UUCP host) and + after replacing $recipient by the recipients. The pipe(8) delivery agent + executes the uuuuxx command without assistance from the shell, so there are no + problems with shell meta characters in command-line parameters. + + * Specify that mail for example.com, should be delivered via UUCP, to a host + named uucp-host: + + /etc/postfix/transport: + example.com uucp:uucp-host + .example.com uucp:uucp-host + + See the transport(5) manual page for more details. + + * Execute the command "ppoossttmmaapp //eettcc//ppoossttffiixx//ttrraannssppoorrtt" whenever you change + the ttrraannssppoorrtt file. + + * Enable ttrraannssppoorrtt table lookups: + + /etc/postfix/main.cf: + transport_maps = hash:/etc/postfix/transport + + Specify ddbbmm instead of hhaasshh if your system uses ddbbmm files instead of ddbb + files. To find out what map types Postfix supports, use the command + "ppoossttccoonnff --mm". + + * Add example.com to the list of domains that your site is willing to relay + mail for. + + /etc/postfix/main.cf: + relay_domains = example.com ...other relay domains... + + See the relay_domains configuration parameter description for details. + + * Execute the command "ppoossttffiixx rreellooaadd" to make the changes effective. + +SSeettttiinngg uupp aa PPoossttffiixx LLAANN ttoo UUUUCCPP ggaatteewwaayy + +Here is how to relay mail from a LAN via UUCP to the Internet. See the Internet +to UUCP gateway section for the other side of the story. + + * You need an rrmmaaiill program that extracts the sender address from mail that + arrives via UUCP, and that feeds the mail into the Postfix sseennddmmaaiill + command. Most UNIX systems come with an rrmmaaiill utility. If you're in a + pinch, try the one bundled with the Postfix source code in the aauuxxiilliiaarryy// + rrmmaaiill directory. + + * Specify that all remote mail must be sent via the uuuuccpp mail transport to + your UUCP gateway host, say, uucp-gateway: + + /etc/postfix/main.cf: + relayhost = uucp-gateway + default_transport = uucp + + Postfix 2.0 and later also allows the following more succinct form: + + /etc/postfix/main.cf: + default_transport = uucp:uucp-gateway + + * Define a pipe(8) based message delivery transport for mail delivery via + UUCP: + + /etc/postfix/master.cf: + uucp unix - n n - - pipe + flags=F user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail + ($recipient) + + This runs the uuuuxx command to place outgoing mail into the UUCP queue. It + substitutes the next-hop hostname (uucp-gateway, or whatever you specified) + and the recipients before executing the command. The uuuuxx command is + executed without assistance from the shell, so there are no problems with + shell meta characters. + + * Execute the command "ppoossttffiixx rreellooaadd" to make the changes effective. + |