Public LDAP servers

This is a list of LDAP servers I've found publicly accessible via the internet.
I've added only a few LDAP servers so far - I'll add more whenever I'll find time.
Of course: This list probably isn't the complete list of LDAP servers in the internet ...
If you know other LDAP servers: Please send a short e-mail to jochen@keutel.de containing just DNS name or IP address plus port number.
Hint: By clicking the hyperlinks in the column "naming context(s)" you access the web2ldap service by Michael Ströder.

LDAP server Port naming context(s) software comments
directory.d-trust.de 389 "" (root) Siemens DirX certificates of various D-Trust CAs
charset LDAPV2: UTF-8
size limit: 20
x500.bund.de 389 o=Bund,c=DE Siemens DirX mail addresses, phone numbers etc. of german government departments
charset LDAPV2: latin1
no size limit
entries found: 1662
persons found: 1406
web gateway: http://x500.bund.de/ or http://x500.bund.de/index.directory.html
pksldap.tttc.de 389 c=DE Siemens DirX Telesec: pilot "PKI"
charset LDAPV2: latin1
size limit: 100
16 CAs (!) found:
  • o=Deutsche Telekom AG, c=DE
  • ou=SigG Test CA 4:PN,o=Deutsche Telekom AG, c=DE
  • ou=TeleSec Timestamp Service SigG 4:PN,o=Deutsche Telekom AG, c=DE
  • ou=TeleSec Timestamp Service SigG 5:PN,o=Deutsche Telekom AG, c=DE
  • ou=TTC Test CA 5:PN,o=Deutsche Telekom AG, c=DE
  • ou=TeleSec Directory Service SigG 7:PN,o=Deutsche Telekom AG, c=DE
  • ou=TeleSec Directory Service SigG 8:PN,o=Deutsche Telekom AG, c=DE
  • ou=TeleSec Directory Service SigG 10:PN,o=Deutsche Telekom AG, c=DE
  • ou=TTC Test CA 11:PN,o=Deutsche Telekom AG, c=DE
  • ou=SigG Test CA 5:PN,o=Deutsche Telekom AG, c=DE
  • ou=SigG Test TSS 1:PN,o=Deutsche Telekom AG, c=DE
  • ou=TTC Test CA 12:PN,o=Deutsche Telekom AG, c=DE
  • ou=NKS CA 6:PN,o=Deutsche Telekom AG, c=DE
  • ou=TeleSec PKS SigG CA 1:PN,o=Deutsche Telekom AG, c=DE
  • ou=Volmari Carsten,o=Deutsche Telekom AG, c=DE
  • ou=SigG Test CA 6:PN,o=Deutsche Telekom AG, c=DE
web gateway: http://www.tttc.de/verzeichnisdienst/index.htm
ldap-tiks.telesec.de
zertifikate.telekom.de 		389 c=de
dc=com
dc=telesec,dc=de 		iPlanet search base c=de:Telesec certificates of Deutsche Telekom employees
charset LDAPV2: UTF-8
size limit: 15
ldap.telesec.de
dirservca.telesec.de
mailcert.t-online.de 		389 c=de
dc=com
dc=telesec,dc=de
o=NetscapeRoot 		iPlanet search base ou=4901, ou=mailcert, ou=services, dc=T-Online, dc=com: certificates of T-Online users
total number of certificates: 4148
search base c=de: Bridge CA (cn=Bridge CA Root,o=Bridge CA,c=de)
charset LDAPV2: UTF-8
size limit: 10
web gateway: http://securemail.t-online.de/ or https://securemailra.t-online.de/caservice/T-Online/de/LDAP/anfrage.html
ldap-compass.telesec.de 389 c=de
dc=de
dc=telesec,dc=de 		iPlanet search base c=de: variuos CAs and certificates
search base dc=de: other CAs and certificates
charset LDAPV2: UTF-8
no size limit
entries under c=de: 15
entries under dc=de: 112
www.trustcenter.de 389 dc=de
dc=dbgroup,dc=com 		Siemens DirX search base dc=de: X.509 certificates and PGP keys issued by TC Trustcenter Hamburg
search base dc=dbgroup, dc=com: X.509 certificates by Deutsche Bank
charset LDAPV2: UTF-8
size limit: 50
directory.verisign.com 389 "" (root) Netscape (?) X.509 certificates issued by Verisign
charset LDAPV2: ???
size limit: 10
Last update: 22nd May, 2003
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