aboutsummaryrefslogtreecommitdiffstats
path: root/fetchmail.man
diff options
context:
space:
mode:
Diffstat (limited to 'fetchmail.man')
-rw-r--r--fetchmail.man10
1 files changed, 10 insertions, 0 deletions
diff --git a/fetchmail.man b/fetchmail.man
index 9343255f..0eec15ea 100644
--- a/fetchmail.man
+++ b/fetchmail.man
@@ -418,6 +418,16 @@ and the one fetchmail uses to report the fingerprint when an SSL connection
is established. When this is specified, fetchmail will compare the server key
fingerprint with the given one, and the connection will fail if they do not
match. This can be used to prevent man-in-the-middle attacks.
+.IP
+To obtain the fingerprint of a certificate stored in the file cert.pem,
+try:
+.sp
+.nf
+ openssl x509 -in cert.pem -noout -fingerprint
+.fi
+.sp
+For details, see
+.BR x509 (1ssl).
.SS Delivery Control Options
.TP
.B \-S <hosts> | \-\-smtphost <hosts>