>> Howard Chu <hyc(a)symas.com&gt; schrieb am 09.12.2013 um 21:46 in Nachricht

Rob Tanner wrote: > Hi, > > We are looking at extending the allowed length of passwords we allow people

to > use (the theory being that a short phrase is easier to remember than a > shorter, but arbitrary string of characters). But since we use our ldap > server for authentication to a whole host of online tools, including

> portals, I need to know the max length of the source password when doing a

bind. There are no maximum lengths in LDAP. Limits imposed by other applications depend on the particular application.

> > Thanks, > Rob > > > > > *Rob Tanner* > UNIX Services Manager > Linfield College, McMinnville Oregon > > *ITS will never ask you for your password. Please don’t share yours with

anyone! > * > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

>> Howard Chu <hyc(a)symas.com&gt; schrieb am 13.12.2013 um 08:53 in Nachricht

Ulrich Windl wrote: >>>> Howard Chu <hyc(a)symas.com&gt; schrieb am 09.12.2013 um 21:46 in Nachricht > <52A62C26.8080501(a)symas.com&gt;: >> Rob Tanner wrote: >>> Hi, >>> >>> We are looking at extending the allowed length of passwords we allow people > >> to >>> use (the theory being that a short phrase is easier to remember than a >>> shorter, but arbitrary string of characters). But since we use our ldap >>> server for authentication to a whole host of online tools, including > several >>> portals, I need to know the max length of the source password when doing a > >> bind. >> >> There are no maximum lengths in LDAP. Limits imposed by other applications >> depend on the particular application. > > Right, but what about typical input buffer lengths in the openLDAP tools (like > ldapsearch)? Part of the point of the open source movement is to allow end users to read the source and see what the code they use actually does. This is a cornerstone of free software, and a key distinction between it and proprietary software.

Learn to exercise this freedom. Since LDAP imposes no limits on the maximum length of a password, it would be moronic for OpenLDAP software to impose limits of its own; that would prevent the tools from working with all possible LDAP servers. You can either trust that we are not morons, or distrust that and use something else instead, or read the source and see for yourself. Whatever choice, your question was a waste of time. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

On 2013-12-13 08:17, Ulrich Windl wrote: >>> Howard Chu <hyc(a)symas.com&gt; schrieb am 09.12.2013 >>> There are no maximum lengths in LDAP. Limits imposed by other >>> applications >> depend on the particular application. > Right, but what about typical input buffer lengths in the openLDAP > tools (like > ldapsearch)? Right... libldap has "#define LDIF_MAXLINE 4096", you must wrap longer lines (start each continuation line with a space). That doesn't impose a max length of the attribute value though.