[Samba] second dc not working properly
Jason Keltz
jas at eecs.yorku.ca
Wed Dec 9 23:49:59 UTC 2020
On 12/9/2020 6:14 AM, Rowland penny via samba wrote:
> On 08/12/2020 23:20, Jason Keltz via samba wrote:
>>
>> On 12/8/2020 4:35 PM, Rowland penny via samba wrote:
>>> On 08/12/2020 21:09, Jason Keltz via samba wrote:
>>>> I'm running Samba 4.11.16 on CentOS 7 and not having much luck with
>>>> failover to a second domain controller. I could *really* use some
>>>> help.
>>>>
>>>> I know my Samba config is fine. I know that adding the second
>>>> domain controler was fine. Replication is working perfectly. No
>>>> errors. If I stop the DC processes on either server, Windows
>>>> clients appear to failover perfectly fine.
>>>>
>>>> The problem seems to affect my Linux clients (CentOS 7) running
>>>> winbind.
>>>>
>>>> Let's say a CentOS 7 client X is connected to dc2, and I stop the
>>>> DC processes on dc2.... The odd time, the client will connect to
>>>> dc1 almost right away, and everything just works the way it should
>>>> always work.
>>>>
>>>> However, most of the time, I stop the DC processes on dc2, the
>>>> client will connect to dc1, I can even do a "wbinfo -u" or "wbinfo
>>>> -g", but "whoami" reveals "user doesn't exist". Somewhere between
>>>> 20-50 minutes later, it just "magically" works. The timing doesn't
>>>> seem consistent. Even a reboot doesn't fix things when it's in
>>>> this state.
>>>>
>>>> I've tried to follow the Samba logs, but I really can't figure out
>>>> what's up. Andrew? Jeremy? Anyone?
>>>>
>>>> I don't think this can be just my system. I suspect there's a lot
>>>> of users out there running multiple DCs with a similar setup to me,
>>>> believing that it's all working, and maybe, because there hasn't
>>>> been a failure, everything works great, but who knows what will
>>>> happen when there's actually a failure.
>>>>
>>>> Jason.
>>>>
>>>>
>>> Try adding these lines to the /etc/resolv.conf on the Linux clients:
>>>
>>> options rotate
>>>
>>> options timeout:1
>>>
>>> ||Rowland
>>
>>
>> Hi Rowland,
>>
>>
>> Here's something that may help jog your memory if you've heard of
>> this happening before.....
>>
>> So my machine was connected to dc2... wbinfo -u is giving me nothing
>> now, yet wbinfo -g is working fine.
>>
>>
>> This sure has me puzzled.
>>
> The fact that 'wbinfo -g' works, seems to suggest that the DC is being
> connected to, so why does 'wbinfo -u' not work ?
>
> Unfortunately you cannot select which DC to use with wbinfo, bu you
> can with net, so try this when 'wbinfo -u' doesn't work: net
> usersidlist -S DCHOSTNAME
>
> Replace 'DCHOSTNAME' with the running DC's hostname.
>
> If you get output it shows that your DC is working and the problem
> lies elsewhere.
>
> Rowland
Hi Rowland,
There must have been a problem with mail on Samba list today.. you sent
your message at 6:14 AM, and I got it at night.. lol.
I just tried again.
Host is on dc2.
I stopped DC services on dc2.
I ran on host, wbinfo -u - it quickly gave me a whole user list. I ran
wbinfo -g - it quickly gave me a group list.
In netstat output I see:
host->dc1:ldap ESTABLISHED
host->dc1:microsoft-ds ESTABLISHED
Exactl as it should... But try to become me...
# su - jas
su: user jas does not exist
# getent passwd jas
<nothing>
# net usersidlist -S dc1
<hangs for 1 min 38 s> (there's over 4500 users)...
Immediately following this, I could "getent passwd jas" and it worked!
So I repeated the exact same test...
Put DC2 back up.
Connect host to dc2.
Everything is working.
I stopped DC services on dc2.
I ran on host, wbinfo -u - it quickly gave me a whole user list. I ran
wbinfo -g - it quickly gave me a group list.
In netstat output I see:
host->dc1:ldap ESTABLISHED
host->dc1:microsoft-ds ESTABLISHED
Exactl as it should... But try to become me...
# su - jas
su: user jas does not exist
# getent passwd jas
<nothing>
# net usersidlist -S dc1
<hangs for 1 min 38 s> (there's over 4500 users)...
But this time, after running "net usersidlist -S dc1", still takes the
same amount of time to process the data, but again "su - jas" doesn't
work...
I know it will eventually "unstick", and the host will be working on dc2
without me doing anything, but it will take some time... If I leave for
awhile, and come back it will be "fixed".
There's definately an issue between nsswitch and winbind
Slightly shrunk version of strace on "su - jas" when it's "broken":
> 9862 execve("/bin/su", ["su", "-", "jas"], 0x7ffde4219898 /* 46 vars
> */) = 0
> 9862 brk(NULL) = 0x56097cefa000
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc870a000
> 9862 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
> 9862 fstat(3, {st_mode=S_IFREG|0644, st_size=209922, ...}) = 0
> 9862 mmap(NULL, 209922, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fdcc86d6000
> 9862 close(3) = 0
> 9862 open("/lib64/libpam.so.0", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`&\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=61680, ...}) = 0
> 9862 mmap(NULL, 2155088, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc82db000
> 9862 mprotect(0x7fdcc82e8000, 2097152, PROT_NONE) = 0
> 9862 mmap(0x7fdcc84e8000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd000) = 0x7fdcc84e8000
> 9862 close(3) = 0
> 9862 open("/lib64/libpam_misc.so.0", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\20\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=15648, ...}) = 0
> 9862 mmap(NULL, 2109752, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc80d7000
> 9862 mprotect(0x7fdcc80da000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc82d9000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fdcc82d9000
> 9862 close(3) = 0
> 9862 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`&\2\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=2156240, ...}) = 0
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc86d5000
> 9862 mmap(NULL, 3985920, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc7d09000
> 9862 mprotect(0x7fdcc7ecc000, 2097152, PROT_NONE) = 0
> 9862 mmap(0x7fdcc80cc000, 24576, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c3000) = 0x7fdcc80cc000
> 9862 mmap(0x7fdcc80d2000, 16896, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdcc80d2000
> 9862 close(3) = 0
> 9862 open("/lib64/libaudit.so.1", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 at 2\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=127184, ...}) = 0
> 9862 mmap(NULL, 2261896, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc7ae0000
> 9862 mprotect(0x7fdcc7afe000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc7cfd000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d000) = 0x7fdcc7cfd000
> 9862 mmap(0x7fdcc7cff000, 37768, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdcc7cff000
> 9862 close(3) = 0
> 9862 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\16\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=19248, ...}) = 0
> 9862 mmap(NULL, 2109744, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc78dc000
> 9862 mprotect(0x7fdcc78de000, 2097152, PROT_NONE) = 0
> 9862 mmap(0x7fdcc7ade000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fdcc7ade000
> 9862 close(3) = 0
> 9862 open("/lib64/libcap-ng.so.0", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\25\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=23968, ...}) = 0
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc86d4000
> 9862 mmap(NULL, 2118016, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc76d6000
> 9862 mprotect(0x7fdcc76da000, 2097152, PROT_NONE) = 0
> 9862 mmap(0x7fdcc78da000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7fdcc78da000
> 9862 close(3) = 0
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc86d3000
> 9862 mmap(NULL, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc86d1000
> 9862 arch_prctl(ARCH_SET_FS, 0x7fdcc86d1780) = 0
> 9862 mprotect(0x7fdcc80cc000, 16384, PROT_READ) = 0
> 9862 mprotect(0x7fdcc78da000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc7ade000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc7cfd000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc84e8000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc82d9000, 4096, PROT_READ) = 0
> 9862 mprotect(0x56097bff3000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc870b000, 4096, PROT_READ) = 0
> 9862 munmap(0x7fdcc86d6000, 209922) = 0
> 9862 brk(NULL) = 0x56097cefa000
> 9862 brk(0x56097cf1b000) = 0x56097cf1b000
> 9862 brk(NULL) = 0x56097cf1b000
> 9862 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
> 9862 fstat(3, {st_mode=S_IFREG|0644, st_size=106172832, ...}) = 0
> 9862 mmap(NULL, 106172832, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fdcc1194000
> 9862 close(3) = 0
> 9862 getuid() = 0
> 9862 geteuid() = 0
> 9862 socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
> 9862 close(3) = 0
> 9862 socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
> 9862 close(3) = 0
> 9862 open("/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 3
> 9862 fstat(3, {st_mode=S_IFREG|0644, st_size=1677, ...}) = 0
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc8709000
> 9862 read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1677
> 9862 read(3, "", 4096) = 0
> 9862 close(3) = 0
> 9862 munmap(0x7fdcc8709000, 4096) = 0
> 9862 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
> 9862 fstat(3, {st_mode=S_IFREG|0644, st_size=209922, ...}) = 0
> 9862 mmap(NULL, 209922, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fdcc86d6000
> 9862 close(3) = 0
> 9862 open("/lib64/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260!\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=61560, ...}) = 0
> 9862 mmap(NULL, 2173048, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc0f81000
> 9862 mprotect(0x7fdcc0f8d000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc118c000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb000) = 0x7fdcc118c000
> 9862 mmap(0x7fdcc118e000, 22648, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdcc118e000
> 9862 close(3) = 0
> 9862 mprotect(0x7fdcc118c000, 4096, PROT_READ) = 0
> 9862 munmap(0x7fdcc86d6000, 209922) = 0
> 9862 open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
> 9862 fstat(3, {st_mode=S_IFREG|0644, st_size=2461, ...}) = 0
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc8709000
> 9862 read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2461
> 9862 read(3, "", 4096) = 0
> 9862 close(3) = 0
> 9862 munmap(0x7fdcc8709000, 4096) = 0
> 9862 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
> 9862 fstat(3, {st_mode=S_IFREG|0644, st_size=209922, ...}) = 0
> 9862 mmap(NULL, 209922, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fdcc86d6000
> 9862 close(3) = 0
> 9862 open("/lib64/libnss_winbind.so.2", O_RDONLY|O_CLOEXEC) = 3
> [note: /lib64/libnss_winbind.so.2 ->
> /xsys/pkg/samba/lib/libnss_winbind.so.2]
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\f\0\0\0\0\0\0"...,
> 832) = 832 <--- I wish I could understand what it is reading here...
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=18400, ...}) = 0
> 9862 mmap(NULL, 2135848, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc0d77000
> 9862 mprotect(0x7fdcc0d7a000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc0f79000, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fdcc0f79000
> 9862 mmap(0x7fdcc0f7a000, 26408, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdcc0f7a000
> 9862 close(3) = 0
> 9862
> open("/xsys/pkg/samba-4.11.16/lib/private/libwinbind-client-samba4.so",
> O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\16\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=18688, ...}) = 0
> 9862 mmap(NULL, 2109576, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc0b73000
> 9862 mprotect(0x7fdcc0b76000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc0d75000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fdcc0d75000
> 9862 close(3) = 0
> 9862 open("/xsys/pkg/samba-4.11.16/lib/private/libreplace-samba4.so",
> O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\r\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=13616, ...}) = 0
> 9862 mmap(NULL, 2105352, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc0970000
> 9862 mprotect(0x7fdcc0972000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc0b71000, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fdcc0b71000
> 9862 mmap(0x7fdcc0b72000, 8, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdcc0b72000
> 9862 close(3) = 0
> 9862 stat("/xsys/pkg/samba-4.11.16/lib", {st_mode=S_IFDIR|0755,
> st_size=4096, ...}) = 0
> 9862 stat("/xsys/lib64", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
> 9862 open("/lib64/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\16\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=40600, ...}) = 0
> 9862 mmap(NULL, 2318912, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc0739000
> 9862 mprotect(0x7fdcc0741000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc0940000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7fdcc0940000
> 9862 mmap(0x7fdcc0942000, 184896, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fdcc0942000
> 9862 close(3) = 0
> 9862 open("/lib64/libfreebl3.so", O_RDONLY|O_CLOEXEC) = 3
> 9862 read(3,
> "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\v\0\0\0\0\0\0"...,
> 832) = 832
> 9862 fstat(3, {st_mode=S_IFREG|0755, st_size=11392, ...}) = 0
> 9862 mmap(NULL, 2105536, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fdcc0536000
> 9862 mprotect(0x7fdcc0538000, 2093056, PROT_NONE) = 0
> 9862 mmap(0x7fdcc0737000, 8192, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fdcc0737000
> 9862 close(3) = 0
> 9862 mprotect(0x7fdcc0737000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc0940000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc0b71000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc0d75000, 4096, PROT_READ) = 0
> 9862 mprotect(0x7fdcc0f79000, 4096, PROT_READ) = 0
> 9862 munmap(0x7fdcc86d6000, 209922) = 0
> 9862 getpid() = 9862
> 9862 lstat("/run/winbindd", {st_mode=S_IFDIR|0755, st_size=60, ...}) = 0
> 9862 lstat("/run/winbindd/pipe", {st_mode=S_IFSOCK|0777, st_size=0,
> ...}) = 0
> 9862 socket(AF_UNIX, SOCK_STREAM, 0) = 3
> 9862 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
> 9862 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
> 9862 fcntl(3, F_GETFD) = 0
> 9862 fcntl(3, F_SETFD, FD_CLOEXEC) = 0
> 9862 connect(3, {sa_family=AF_UNIX, sun_path="/run/winbindd/pipe"},
> 110) = 0
> 9862 poll([{fd=3, events=POLLIN|POLLOUT|POLLHUP}], 1, -1) = 1
> ([{fd=3, revents=POLLOUT}])
> 9862 write(3,
> "P\10\0\0\0\0\0\0\0\0\0\0\206&\0\0\0\10\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 2128) = 2128
> 9862 poll([{fd=3, events=POLLIN|POLLHUP}], 1, 5000) = 1 ([{fd=3,
> revents=POLLIN}])
> 9862 read(3,
> "\250\17\0\0\2\0\0\0\37\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 4008) = 4008
> 9862 poll([{fd=3, events=POLLIN|POLLOUT|POLLHUP}], 1, -1) = 1
> ([{fd=3, revents=POLLOUT}])
> 9862 write(3,
> "P\10\0\0\1\0\0\0\0\0\0\0\206&\0\0\0\0\2\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 2128) = 2128
> 9862 poll([{fd=3, events=POLLIN|POLLHUP}], 1, 5000) = 1 ([{fd=3,
> revents=POLLIN}])
> 9862 read(3,
> "\250\17\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 4008) = 4008
> 9862 open("/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 4
> 9862 fstat(4, {st_mode=S_IFREG|0644, st_size=2502, ...}) = 0
> 9862 mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdcc8709000
> 9862 read(4, "# Locale name alias data base.\n#"..., 4096) = 2502
> 9862 read(4, "", 4096) = 0
> 9862 close(4) = 0
> 9862 munmap(0x7fdcc8709000, 4096) = 0
> 9862 write(2, "su: ", 4) = 4
> 9862 write(2, "user jas does not exist", 23) = 23
> 9862 write(2, "\n", 1) = 1
> 9862 close(1) = 0
> 9862 close(2) = 0
> 9862 close(3) = 0
> 9862 exit_group(1) = ?
> 9862 +++ exited with 1 +++
I even stopped winbind on the client, deleted /run/winbindd, and
restarted winbindd... still nothing... (though wbinfo -u and wbinfo -g
are working)...
I don't think there's a way to "reset" nsswitch, and there's not even a
cache because I'm not using nscd.
Anything else to try?
Jason.
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