Guys,
I'm facing this problem too:
https://lists.samba.org/archive/samba/2013-March/172230.html
I have two Samba4 AC DC, in both located in my office, dual-stacked,
working like a charm.
Now, I need to deploy a third DC, located within Amazon EC2, which does NOT
have IPv6.
But, samba-tool fails to join.
How can I workaround this, without enabling a tunneled IPv6 within my EC2 ?
Exemplifying:
1- ubuntu-ad-1 - Master - ok - office LAN1 - IPv4 / IPv6
2- ubuntu-ad-2 - Slave - ok - office LAN2 - IPv4 / IPv6
3- ubuntu-ad-3 - Slave can't join - AWS - IPv4-Only
---
root at ubuntu-ad-3:~# kinit administrator
Password for administrator at CENTRAL.DOMAIN.COM.BR:
Warning: Your password will expire in 40 days on Thu 28 Aug 2014 05:56:10
PM UTC
---
---
root at ubuntu-ad-3:~# samba-tool domain join central.domain.com.br DC
-Uadministrator --realm=CENTRAL.DOMAIN.COM.BR --dns-backend=BIND9_DLZ
Finding a writeable DC for domain 'central.domain.com.br'
ERROR(exception): uncaught exception - Failed to find a writeable DC for
domain 'central.domain.com.br'
File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py",
line
175, in _run
return self.run(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/samba/netcmd/domain.py", line
552,
in run
machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend)
File "/usr/lib/python2.7/dist-packages/samba/join.py", line 1150, in
join_DC
machinepass, use_ntvfs, dns_backend, promote_existing)
File "/usr/lib/python2.7/dist-packages/samba/join.py", line 76, in
__init__
ctx.server = ctx.find_dc(domain)
File "/usr/lib/python2.7/dist-packages/samba/join.py", line 262, in
find_dc
raise Exception("Failed to find a writeable DC for domain
'%s'" %
domain)
---
Debugging it with `strace`, I'm seeing:
---
strace -f -e trace=network samba-tool domain join CENTRAL.DOMAIN.COM.BR DC
-Uadministrator --realm=CENTRAL.DOMAIN.COM.BR --dns-backend=BIND9_DLZ
.....
[pid 1533] +++ killed by SIGKILL +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=1533,
si_status=SIGKILL, si_utime=0, si_stime=0} ---
socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 5
setsockopt(5, SOL_IPV6, IPV6_V6ONLY, [1], 4) = 0
*connect(5, {sa_family=AF_INET6, sin6_port=htons(389), inet_pton(AF_INET6,
"2001:1291:XXX:85Xa::66XX", &sin6_addr), sin6_flowinfo=0,
sin6_scope_id=0},
28) = -1 ENETUNREACH (Network is unreachable)*
ERROR(exception): uncaught exception - Failed to find a writeable DC for
domain 'CENTRAL.DOMAIN.COM.BR'
File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py",
line
175, in _run
return self.run(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/samba/netcmd/domain.py", line
552,
in run
machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend)
File "/usr/lib/python2.7/dist-packages/samba/join.py", line 1150, in
join_DC
machinepass, use_ntvfs, dns_backend, promote_existing)
File "/usr/lib/python2.7/dist-packages/samba/join.py", line 76, in
__init__
ctx.server = ctx.find_dc(domain)
File "/usr/lib/python2.7/dist-packages/samba/join.py", line 262, in
find_dc
raise Exception("Failed to find a writeable DC for domain
'%s'" %
domain)
+++ exited with 255 +++
---
So, how can I force samba-tool to use IPv4? Since ubuntu-ad-3 doesn't have
IPv6...
Thanks!
Thiago
BUG opened at Launchpad: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1344400 Cheers! Thiago On 18 July 2014 18:13, Martinx - ????? <thiagocmartinsc at gmail.com> wrote:> Guys, > > I'm facing this problem too: > https://lists.samba.org/archive/samba/2013-March/172230.html > > I have two Samba4 AC DC, in both located in my office, dual-stacked, > working like a charm. > > Now, I need to deploy a third DC, located within Amazon EC2, which does > NOT have IPv6. > > But, samba-tool fails to join. > > How can I workaround this, without enabling a tunneled IPv6 within my EC2 ? > > Exemplifying: > > 1- ubuntu-ad-1 - Master - ok - office LAN1 - IPv4 / IPv6 > 2- ubuntu-ad-2 - Slave - ok - office LAN2 - IPv4 / IPv6 > > 3- ubuntu-ad-3 - Slave can't join - AWS - IPv4-Only > > --- > root at ubuntu-ad-3:~# kinit administrator > Password for administrator at CENTRAL.DOMAIN.COM.BR: > Warning: Your password will expire in 40 days on Thu 28 Aug 2014 05:56:10 > PM UTC > --- > > --- > root at ubuntu-ad-3:~# samba-tool domain join central.domain.com.br DC > -Uadministrator --realm=CENTRAL.DOMAIN.COM.BR --dns-backend=BIND9_DLZ > Finding a writeable DC for domain 'central.domain.com.br' > ERROR(exception): uncaught exception - Failed to find a writeable DC for > domain 'central.domain.com.br' > File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line > 175, in _run > return self.run(*args, **kwargs) > File "/usr/lib/python2.7/dist-packages/samba/netcmd/domain.py", line > 552, in run > machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend) > File "/usr/lib/python2.7/dist-packages/samba/join.py", line 1150, in > join_DC > machinepass, use_ntvfs, dns_backend, promote_existing) > File "/usr/lib/python2.7/dist-packages/samba/join.py", line 76, in > __init__ > ctx.server = ctx.find_dc(domain) > File "/usr/lib/python2.7/dist-packages/samba/join.py", line 262, in > find_dc > raise Exception("Failed to find a writeable DC for domain '%s'" % > domain) > --- > > Debugging it with `strace`, I'm seeing: > > --- > strace -f -e trace=network samba-tool domain join CENTRAL.DOMAIN.COM.BR > DC -Uadministrator --realm=CENTRAL.DOMAIN.COM.BR --dns-backend=BIND9_DLZ > ..... > [pid 1533] +++ killed by SIGKILL +++ > --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=1533, > si_status=SIGKILL, si_utime=0, si_stime=0} --- > socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 5 > setsockopt(5, SOL_IPV6, IPV6_V6ONLY, [1], 4) = 0 > *connect(5, {sa_family=AF_INET6, sin6_port=htons(389), inet_pton(AF_INET6, > "2001:1291:XXX:85Xa::66XX", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, > 28) = -1 ENETUNREACH (Network is unreachable)* > ERROR(exception): uncaught exception - Failed to find a writeable DC for > domain 'CENTRAL.DOMAIN.COM.BR' > File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line > 175, in _run > return self.run(*args, **kwargs) > File "/usr/lib/python2.7/dist-packages/samba/netcmd/domain.py", line > 552, in run > machinepass=machinepass, use_ntvfs=use_ntvfs, dns_backend=dns_backend) > File "/usr/lib/python2.7/dist-packages/samba/join.py", line 1150, in > join_DC > machinepass, use_ntvfs, dns_backend, promote_existing) > File "/usr/lib/python2.7/dist-packages/samba/join.py", line 76, in > __init__ > ctx.server = ctx.find_dc(domain) > File "/usr/lib/python2.7/dist-packages/samba/join.py", line 262, in > find_dc > raise Exception("Failed to find a writeable DC for domain '%s'" % > domain) > +++ exited with 255 +++ > --- > > So, how can I force samba-tool to use IPv4? Since ubuntu-ad-3 doesn't have > IPv6... > > Thanks! > Thiago >
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