[root@rhds ~]# dsctl --remove-all
Are you sure you want to remove all the Directory Server instances?  Enter "Yes" to continue: Yes
Removing instance: slapd-test
All instances have been successfully removed



[root@rhds ~]# vi /etc/default/grub 
[root@rhds ~]# ls -lh /etc/grub*.cfg
lrwxrwxrwx. 1 root root 22 Sep 26  2019 /etc/grub2.cfg -> ../boot/grub2/grub.cfg

[root@rhds ~]# grub2-mkconfig -o /boot/grub2/grub.cfg 
Generating grub configuration file ...
done


[root@rhds ~]# grep -i ipv6 /etc/default/grub 
GRUB_CMDLINE_LINUX="console=ttyS0 console=ttyS0,115200n8 no_timer_check net.ifnames=0 crashkernel=auto ipv6.disable=1"
[root@rhds ~]# 


[root@rhds ~]# grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
Generating grub configuration file ...
done
[root@rhds ~]# reboot

+++++++++++++

[root@rhds ~]# dscreate -v from-file test.inf 
DEBUG: The 389 Directory Server Creation Tool
DEBUG: Inspired by works of: ITS, The University of Adelaide
DEBUG: Called with: Namespace(dryrun=False, file='test.inf', func=<function instance_create at 0x7fdeb4238f28>, verbose=True)
DEBUG: Running setup with verbose
DEBUG: Using inf from test.inf
DEBUG: Configuration ['general', 'slapd', 'backend-userroot']
DEBUG: general:config_version not in inf, using default
DEBUG: general:strict_host_checking not in inf, using default
DEBUG: general:selinux not in inf, using default
DEBUG: general:systemd not in inf, using default
DEBUG: general:start not in inf, using default
DEBUG: general:defaults not in inf, using default
DEBUG: Configuration general {'config_version': 2, 'full_machine_name': 'rhds.hkhot.local', 'strict_host_checking': False, 'selinux': True, 'systemd': True, 'start': True, 'defaults': '999999999'}
DEBUG: slapd:user not in inf, using default
DEBUG: slapd:group not in inf, using default
DEBUG: slapd:prefix not in inf, using default
DEBUG: slapd:self_sign_cert not in inf, using default
DEBUG: slapd:self_sign_cert_valid_months not in inf, using default
DEBUG: slapd:bin_dir not in inf, using default
DEBUG: slapd:sbin_dir not in inf, using default
DEBUG: slapd:sysconf_dir not in inf, using default
DEBUG: slapd:initconfig_dir not in inf, using default
DEBUG: slapd:data_dir not in inf, using default
DEBUG: slapd:local_state_dir not in inf, using default
DEBUG: slapd:lib_dir not in inf, using default
DEBUG: slapd:cert_dir not in inf, using default
DEBUG: slapd:config_dir not in inf, using default
DEBUG: slapd:inst_dir not in inf, using default
DEBUG: slapd:backup_dir not in inf, using default
DEBUG: slapd:db_dir not in inf, using default
DEBUG: slapd:ldif_dir not in inf, using default
DEBUG: slapd:lock_dir not in inf, using default
DEBUG: slapd:log_dir not in inf, using default
DEBUG: slapd:run_dir not in inf, using default
DEBUG: slapd:schema_dir not in inf, using default
DEBUG: slapd:tmp_dir not in inf, using default
DEBUG: Configuration slapd {'self_sign_cert': True, 'root_dn': 'cn=directory manager', 'port': 389, 'secure_port': 636, 'self_sign_cert_valid_months': 24, 'user': 'dirsrv', 'instance_name': 'test', 'group': 'dirsrv', 'root_password': 'geheim4test', 'initconfig_dir': '/etc/sysconfig', 'prefix': '/usr', 'bin_dir': '/usr/bin', 'sbin_dir': '/usr/sbin', 'sysconf_dir': '/etc', 'data_dir': '/usr/share', 'local_state_dir': '/var', 'lib_dir': '/usr/lib64', 'cert_dir': '/etc/dirsrv/slapd-test', 'config_dir': '/etc/dirsrv/slapd-test', 'inst_dir': '/usr/lib64/dirsrv/slapd-test', 'backup_dir': '/var/lib/dirsrv/slapd-test/bak', 'db_dir': '/var/lib/dirsrv/slapd-test/db', 'ldif_dir': '/var/lib/dirsrv/slapd-test/ldif', 'lock_dir': '/var/lock/dirsrv/slapd-test', 'log_dir': '/var/log/dirsrv/slapd-test', 'run_dir': '/var/run/dirsrv', 'schema_dir': '/etc/dirsrv/slapd-test/schema', 'tmp_dir': '/tmp'}
DEBUG: backend-userroot:suffix not in inf, using default
DEBUG: backend-userroot:create_suffix_entry not in inf, using default
DEBUG: backend-userroot:sample_entries not in inf, using default
DEBUG: backend-userroot:require_index not in inf, using default
DEBUG: Configuration backends []
DEBUG: START: Starting installation...
DEBUG: READY: Preparing installation for test...
DEBUG: PASSED: using config settings 999999999
DEBUG: PASSED: user / group checking
DEBUG: PASSED: prefix checking
DEBUG: list instance not found in /etc/dirsrv/slapd-test/dse.ldif: test

DEBUG: PASSED: instance checking
DEBUG: INFO: temp root password set to kl.eC6xyHOC3qDEMEuZ4c1u3MbKDFKJAJVjbZ2T8v2mVWnujj4U5pCzKIg0smtas1
DEBUG: PASSED: root user checking
DEBUG: [Errno 97] Address family not supported by protocol
Traceback (most recent call last):
  File "/usr/sbin/dscreate", line 75, in <module>
    result = args.func(inst, log, args)
  File "/usr/lib/python3.6/site-packages/lib389/cli_ctl/instance.py", line 71, in instance_create
    if sd.create_from_inf(args.file):
  File "/usr/lib/python3.6/site-packages/lib389/instance/setup.py", line 527, in create_from_inf
    self.create_from_args(general, slapd, backends, self.extra)
  File "/usr/lib/python3.6/site-packages/lib389/instance/setup.py", line 643, in create_from_args
    self._prepare_ds(general, slapd, backends)
  File "/usr/lib/python3.6/site-packages/lib389/instance/setup.py", line 611, in _prepare_ds
    assert_c(socket_check_open('::1', slapd['port']) is False, "port %s is already in use, or missing NET_BIND_SERVICE" % slapd['port'])
  File "/usr/lib/python3.6/site-packages/lib389/utils.py", line 1131, in socket_check_open
    with closing(socket.socket(socket.AF_INET6, socket.SOCK_STREAM)) as sock:
  File "/usr/lib64/python3.6/socket.py", line 144, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
OSError: [Errno 97] Address family not supported by protocol
ERROR: Error: [Errno 97] Address family not supported by protocol
[root@rhds ~]# 
[root@rhds ~]# 
[root@rhds ~]# 
[root@rhds ~]# 
[root@rhds ~]# 
[root@rhds ~]# 
[root@rhds ~]# 
[root@rhds ~]# dscreate  from-file test.inf 
Starting installation...
Error: [Errno 97] Address family not supported by protocol
[root@rhds ~]#

++++++++++++


~Hemant_Khot

From the Python lib389 code in instance/setup.py and utils.py, _prepare_ds() and socket_check_open,() require the use of IPv6 for a test, so it looks like IPv6 must be enabled for the installed to work properly.

As a bad workaround, may be try to modify the file
/usr/lib/python3.6/site-packages/lib389/utils.py

from
def socket_check_open(host, port):
    with closing(socket.socket(socket.AF_INET6, socket.SOCK_STREAM)) as sock:

to
def socket_check_open(host, port):
    with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:

but there may be other failures.

I do not see a clear IPv6 requirement in the RHDS docs, so this is likely not a tested scenario.
IPv6 is required in RHEL IdM.

If there is no IPv6 requirement, this would be a bug, and in various places, otherwise, what is the reason IPv6 needs to be disabled? Can IPv6 be enabled?

There is no requirement for IPv6 in RHDS, so this is a bug that needs to be fixed.  Investigating now...

I could reproduce the problem, and I verified a fix:

https://pagure.io/389-ds-base/issue/51064

Fixed upstream

Build tested:
389-ds-base-1.4.3.8-2.module+el8.3.0+6591+ebfc9766.x86_64

# grep -i ipv6 /etc/default/grub 
GRUB_CMDLINE_LINUX="console=ttyS0 console=ttyS0,115200n8 no_timer_check net.ifnames=0 crashkernel=auto ipv6.disable=1"

# grub2-mkconfig -o /boot/grub2/grub.cfg 
Generating grub configuration file ...
done
# grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
Generating grub configuration file ...
done

# reboot

# dscreate -v from-file test.inf 
...
...
DEBUG: FINISH: Completed installation for localhost


Marking as VERIFIED.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (389-ds:1.4 bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2020:4695