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--- other:ldap [2021/04/03 20:32]
nanodano
+++ other:ldap [2021/04/03 22:04] (current)
nanodano [web2ldap]
@@ Line 1: / Line 1: @@
-===== LDAP =====
+====== LDAP ======
 [[https://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol|Lightweight Directory Access Protocol]] or LDAP is useful for authenticating and authorizing users. It's convenient for having a central location to manage users and groups that many different applications can use.
@@ Line 35: / Line 35: @@
 Here are instructions on setup OpenLDAP on Debian with LetsEncrypt SSL certificates.
+Also refer to the Debian wiki page: [[https://wiki.debian.org/LDAP/OpenLDAPSetup]].
+For a list of all man pages that comes with slapd, refer to [[https://manpages.debian.org/jessie/slapd/index.html]].
 <code bash>
@@ Line 86: / Line 88: @@
 </code>
-TODO: Setup certbot auto renew, with a post hook to restart slapd
+If you want to setup certbot to auto-renew certificates, add it into your crontab.
+<code>
+crontab -e  # As root
+# And add the following line to renew at 4:24am on 3rd day of month
+4 3 * *  certbot renew --post-hook "systemctl restart slapd"
+</code>
 At this point you can use StartTLS on the ldap:// port.
@@ Line 138: / Line 147: @@
 </code>
-You can also use ''ldapadd'' and ''ldapmodify'' to add or change users and configs.
+You can also use ''ldapmodify'' to add or change users and configs. See the "LDIF examples" section below for more details.
 <code bash>
-#
 ldapmodify -H ldapi:/// -Y EXTERNAL -f change.ldif
+# or
+ldapmodify -H ldapi:/// -f change.ldif -D cn=admin,dc=devdungeon,dc=com -W
 </code>
@@ Line 152: / Line 162: @@
 ==== Apache Directory Studio ====
-[[https://directory.apache.org/studio/|Apache Directory Studio]], a desktop application for interacting with any LDAP server.
+[[https://directory.apache.org/studio/|Apache Directory Studio]], a desktop application for interacting with any LDAP server. It didn't work with Java 14 and I needed OpenJDK 11 as of March 2021. Download OpenJDK from [[https://adoptopenjdk.net]].
+To add a new server connection, go to ''New LDAP Browser | LDAP Connection''.
+Use Simple Authentication, NOTE: When setting up the connection, and it asks about ''Edit Options'', you might choose ''Always use REPLACE'' otherwise you might get errors when trying to modify certain values with an error like "noSuchAttribute".
+To add a user, right click on the top level object and add New Entry (Create from Scratch).
+Give it two object classes: ''organizationalRole'' and ''simpleSecurityObject''.
+Give it RDN of ''cn'' and then it will ask for a password.
 ==== JXplorer ====
+[[http://jxplorer.org|JXplorer]] is a GUI application for interacting with LDAP servers, though it's not the best. It does not seem to support StartTLS, only plain-text and LDAPS. I have not used it a ton, but I found it to be kind of weak and Apache Directory Studio seems much more featured.
 ==== web2ldap ====
-Libraries
+[[https://www.web2ldap.de|web2ldap]] is a web application for managing LDAP servers.
+To install it in Debian,
+<code bash>
+sudo apt install python3-venv rustc python3-dev libsasl2-dev libldap2-dev libssl-dev
+python3 -m pip install web2ldap
+</code>
+To run, it, simply invoke the script provided by the pip package:
+<code bash>
+web2ldap
+</code>
+Then connect to it in a browser, using the address it outputs. For example. [[http://localhost:1760/web2ldap]]
+Click connect to a server, then click on 'Bind' and do Simple bind, bind as `admin` and then choose identification search, e.g. ''dc=devdungeon,dc=com'' and login.
+When you CLICK into an OU or group, your whole context changes. When you click "new Entry", it will add that entry in the location based on your breadcrumbs at the top. Be careful it's not nesting it under something unexpected.
+To move a user, go to Tree, view user, and click Rename on right side. Change superior DN to include the new OU info.
 ==== Python Library ====
+The [[https://www.python-ldap.org/|python-ldap]] package lets you interact with LDAP servers in Python.
+To install it:
 <code bash>
@@ Line 168: / Line 215: @@
 </code>
+To use it:
-<code python | ldap_test.py>
+<code python ldap_test.py>
 # `apt install python3-ldap` or `pip install python-ldap`
 from getpass import getpass
@@ Line 206: / Line 254: @@
 ==== Java Library ====
-https://directory.apache.org/api/
+There is a Java library provided by the Apache Directory project: [[https://directory.apache.org/api/]]. You can use this to interact with LDAP servers in Java.
@@ Line 216: / Line 264: @@
 <code bash>
-# Pass a file
+# Pass a file with `-f`. Use `-Y EXTERNAL` for server configs.
 ldapmodify -H ldapi:/// -Y EXTERNAL -f change.ldif
-# Or bind using an admin account
+# Or bind using an admin account with `-W -D <dn>`
 ldapmodify -H ldapi:/// -f change.ldif -D cn=admin,dc=devdungeon,dc=com -W
@@ Line 255: / Line 303: @@
 objectClass: top
 objectClass: simpleSecurityObject
-userPassword:: e2NTSEF9UUlUdmFHQmRIR29RVTBFakl2UGdUL3VNc2ZjRmg2STJaeW4zQOE9PQ=
+# Salted SHA password provided by `slappasswd`
- =
+userPassword: {SSHA}s123K9t/R9Y79Sb1VZINlXVzjjD31TJp
 </code>
-If you need a hashed password to provide to the ''userPassword'' value, you can use ''slappasswd'':
-<code bash>
-slappasswd
-</code>
-==== Delete ====
+==== Delete an OU ====
 <code ldif delete_ou.ldif>
 dn: ou=admins,dc=devdungeon,dc=com
 changetype: delete
-</code
+</code>
+==== Delete a user ====
+<code ldif delete_user.ldif>
+dn: cn=nanodano,dc=devdungeon,dc=com
+changetype: delete
+</code>
+==== Update TLS certificates ====
+When updating the certificates, you are modifying ''cn=config'' and not a regular organizational unit.
+<code ldif update_certs.ldif>
+# If using `ldapmodify`, use auth option of `-Y EXTERNAL`
+# instead of `-W -D cn=admin,dc=devdungeon,dc=com`
+# since it affects the server config directly
+dn: cn=config
+changetype: modify
+replace: olcTLSCertificateFile
+olcTLSCertificateFile: /etc/letsencrypt/live/ldap.devdungeon.com/cert.pem
+-
+replace: olcTLSCertificateKeyFile
+olcTLSCertificateKeyFile: /etc/letsencrypt/live/ldap.devdungeon.com/privkey.pem
+</code>

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