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-rw-r--r--share/man/man5/passwd.524
1 files changed, 17 insertions, 7 deletions
diff --git a/share/man/man5/passwd.5 b/share/man/man5/passwd.5
index c49b0f7..a5c2935 100644
--- a/share/man/man5/passwd.5
+++ b/share/man/man5/passwd.5
@@ -129,19 +129,29 @@ Routines
that manipulate these files will often return only one of the multiple
entries, and that one by random selection.
.Pp
-The login name must never begin with a hyphen
-.Pq Ql - ;
-also, it is strongly
-suggested that neither upper-case characters or dots
-.Pq Ql \&.
-be part
-of the name, as this tends to confuse mailers.
+The login name must not begin with a hyphen
+.Pq Ql \&- ,
+and cannot contain 8-bit characters, tabs or spaces, or any of these
+symbols:
+.Ql \&,:+&#%^\&(\&)!@~*?<>=|\e\\&/" .
+The dollar symbol
+.Pq Ql \&$
+is allowed only as the last character for use with Samba.
No field may contain a
colon
.Pq Ql \&:
as this has been used historically to separate the fields
in the user database.
.Pp
+Case is significant.
+Login names
+.Ql Lrrr
+and
+.Ql lrrr
+represent different users.
+Be aware of this when interoperating with systems that do not have
+case-sensitive login names.
+.Pp
In the
.Nm master.passwd
file,
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