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authorgshapiro <gshapiro@FreeBSD.org>2002-05-22 16:37:32 +0000
committergshapiro <gshapiro@FreeBSD.org>2002-05-22 16:37:32 +0000
commitc4bd09146b324b0f5be1f06a341b194ce6ebb137 (patch)
treede24fee3c50388768353513e9b7040a24d2dd706 /etc
parent25711d6191fb53f8be2fa8d35bbccba0a9772460 (diff)
downloadFreeBSD-src-c4bd09146b324b0f5be1f06a341b194ce6ebb137.zip
FreeBSD-src-c4bd09146b324b0f5be1f06a341b194ce6ebb137.tar.gz
Add a warning regarding localhost-only listening daemons inside jails.
Apparently binding only to 127.0.0.1 inside of a jail actually binds to the jail IP address as well (in effect, bind to all available interfaces in the jail). Submitted by: Helge Oldach <test-smtp@oldach.net> MFC after: 1 day pending RE approval
Diffstat (limited to 'etc')
-rw-r--r--etc/mail/README11
1 files changed, 6 insertions, 5 deletions
diff --git a/etc/mail/README b/etc/mail/README
index f3608fa..fd7c8f6 100644
--- a/etc/mail/README
+++ b/etc/mail/README
@@ -11,11 +11,12 @@ default) holds the mail if an MTA can not be contacted.
To accomplish this, under the default setup, an MTA must be listening on
localhost port 25. If the rc.conf sendmail_enable option is set to "NO",
a sendmail daemon will still be started and bound only to the localhost
-interface in order to accept command line submitted mail. If this is not
-a desirable solution, it can be disabled using the sendmail_submit_enable
-rc.conf option. However, if both sendmail_enable and sendmail_submit_enable
-are set to "NO", you must do one of two things for command line submitted
-mail:
+interface in order to accept command line submitted mail (note that this
+does not work inside jail(2) systems as jails do not allow binding to
+just the localhost interface). If this is not a desirable solution, it
+can be disabled using the sendmail_submit_enable rc.conf option. However,
+if both sendmail_enable and sendmail_submit_enable are set to "NO", you
+must do one of two things for command line submitted mail:
1. Designate an alternative host for the submission agent to contact
by altering /etc/mail/freebsd.submit.mc (or setting SENDMAIL_SUBMIT_MC
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