Hi everybody, I have configured freeradius to use gssapi for authentication while searching the LDAP for users or hosts. Now I can't start the debugmode anymore. Everytime I try I'm getting: ---------- rlm_ldap (ldap): Connecting to ldaps://ldap-r01.example.net:636 ldaps://ldap-r02.example.net:636 rlm_ldap (ldap): Starting SASL mech(s): gssapi SASL/GSSAPI authentication started rlm_ldap (ldap): Bind with (anonymous) to ldaps://ldap-r01.example.net:636 ldaps://ldap-r02.example.net:636 failed: Local error rlm_ldap (ldap): Opening connection failed (0) rlm_ldap (ldap): Removing connection pool /etc/freeradius/3.0/mods-enabled/ldap[8]: Instantiation failed for module "ldap" ---------- The log from the LDAP-server is showing: ---------- Okt 29 15:27:27 ldap-r01 slapd[620]: conn=1024 fd=26 ACCEPT from IP=192.168.56.47:34490 (IP=0.0.0.0:636) Okt 29 15:27:27 ldap-r01 slapd[620]: conn=1024 fd=26 TLS established tls_ssf=256 ssf=256 tls_proto=TLSv1.3 tls_cipher=TLS_AES_256_GCM_SHA384 Okt 29 15:27:27 ldap-r01 slapd[620]: conn=1024 op=0 UNBIND Okt 29 15:27:27 ldap-r01 slapd[620]: conn=1024 fd=26 closed ---------- Running freeradius normal I can search for a user end check authentication with username and password -------------------- root@radius-r01:~# radtest u1-verw geheim 192.168.56.47 1812 Passw0rd Sent Access-Request Id 143 from 0.0.0.0:34828 to 192.168.56.47:1812 length 77 User-Name = "u1-verw" User-Password = "geheim" NAS-IP-Address = 192.168.56.47 NAS-Port = 1812 Message-Authenticator = 0x00 Cleartext-Password = "geheim" Received Access-Accept Id 143 from 192.168.56.47:1812 to 192.168.56.47:34828 length 20 -------------------- The logfile for m my LDAP-Server is showing: ---------- Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1031 op=2 BIND dn="" method=163 Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1031 op=2 BIND authcid="radius/radius-r01.example.net" authzid="radius/radius-r01.example.net" Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1031 op=2 BIND dn="uid=radius/radius-r01.example.net,cn=gssapi,cn=auth" mech=GSSAPI bind_ssf=56 ssf=256 Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1031 op=2 RESULT tag=97 err=0 qtime=0.000006 etime=0.000187 text= Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1026 op=3 BIND anonymous mech=implicit bind_ssf=0 ssf=256 Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1026 op=3 BIND dn="cn=u1 Verw,ou=users,ou=Verwaltung,dc=example,dc=net" method=128 Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1026 op=3 BIND dn="cn=u1 Verw,ou=users,ou=Verwaltung,dc=example,dc=net" mech=SIMPLE bind_ssf=0 ssf=256 Okt 29 15:30:29 ldap-r01 slapd[620]: conn=1026 op=3 RESULT tag=97 err=0 qtime=0.000007 etime=0.006275 text= ---------- So as you can see, authentication via Kerberos for the search and authentication of users is working. To do the next step, switch to user-authentication via certificate, I want to start the debugmode, but I could not figure out how to get the debugmode running with Kerberos authentication :-( Is there a way to get it running? Stefan