LDAP

This page is a reference for Hacklab's server admins.

• Base: dc=edinburghhacklab,dc=com
• Servers: pool.ldap.ehlab.uk, or a.ldap.ehlab.uk + b.ldap.ehlab.uk + c.ldap.ehlab.uk
• Port: 389/STARTTLS or 636/TLS

Quick reference for Debian LDAP client setup:

• apt-get install sssd libpam-mkhomedir
• edit /etc/ldap/ldap.conf

BASE    dc=edinburghhacklab,dc=com
URI     ldaps://pool.ldap.ehlab.uk
TLS_CACERT      /etc/ssl/certs/ca-certificates.crt
TLS_REQCERT     demand

• edit /etc/sssd/sssd.conf

[sssd]
config_file_version = 2
reconnection_retries = 3
sbus_timeout = 30
services = nss, pam
domains = hacklab

[nss]
filter_groups = root
filter_users = root
reconnection_retries = 3

[pam]
reconnection_retries = 3

[domain/hacklab]
id_provider = ldap
auth_provider = ldap
ldap_schema = rfc2307
ldap_uri = ldaps://a.ldap.ehlab.uk,ldaps://b.ldap.ehlab.uk,ldaps://c.ldap.ehlab.uk
ldap_search_base = dc=edinburghhacklab,dc=com
ldap_id_use_start_tls = true
cache_credentials = true
ldap_tls_reqcert = demand
ldap_tls_cacert = /etc/ssl/certs/ca-certificates.crt

• edit /etc/pam.d/common-session

# here are the per-package modules (the "Primary" block)
session [default=1]                     pam_permit.so
# here's the fallback if no module succeeds
session requisite                       pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
session required                        pam_permit.so
# and here are more per-package modules (the "Additional" block)
session required        pam_unix.so 
session optional                                        pam_sss.so 
session optional        pam_mkhomedir.so skel=/etc/skel umask=0022
# end of pam-auth-update config

• edit /etc/nsswitch.conf

passwd:         compat sss
group:          compat sss
shadow:         compat sss

hosts:          files dns
networks:       files

protocols:      db files
services:       db files
ethers:         db files
rpc:            db files

netgroup:       nis sss