[OpenAFS] Ticket cache file permission incorrect of Openafs Client in Scientific Linux 6
huangql
huangql@ihep.ac.cn
Fri, 2 Aug 2019 12:49:10 +0800
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3DISO-8859-1"><style>body { line-height: 1.5; }blockquote { margin-top: =
0px; margin-bottom: 0px; margin-left: 0.5em; }body { font-size: 10.5pt; fo=
nt-family: ????; color: rgb(0, 0, 0); line-height: 1.5; }</style></head><b=
ody>=0A<div><span></span>Hi Ben,</div><div><br></div><div>I got it. Thanks=
for your good suggestion.</div><div><br></div><div>Regards,</div><div>Qiu=
lan</div>=0A<div><br></div>=0A<hr style=3D"width: 210px; height: 1px;" ali=
gn=3D"left" color=3D"#b5c4df" size=3D"1">=0A<div><span><div style=3D"MARGI=
N: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>huangql</div></div></=
span></div><div>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D<br>Computing center,the Institute of High Energy Physics, CAS, China<b=
r>Qiulan Huang &nb=
sp; Tel: (+86) 10 8823 6087<br>P.O. Box 918-7 =
Fax: (+86) =
10 8823 6839<br>Beijing 100049 P.R. China  =
; Email: huangql@ihep.ac.cn<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D</div>=0A<blockquote style=3D"margin-Top: 0px; margin=
-Bottom: 0px; margin-Left: 0.5em"><div> </div><div style=3D"border:no=
ne;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style=3D=
"PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma=
;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px=
"><div><b>From:</b> <a href=3D"mailto:kaduk@mit.edu">Benjamin Kaduk</=
a></div><div><b>Date:</b> 2019-08-01 03:56</div><div><b>To:</b>&=
nbsp;<a href=3D"mailto:huangql@ihep.ac.cn">huangql</a></div><div><b>CC:</b=
> <a href=3D"mailto:openafs-info@openafs.org">openafs-info</a></div><=
div><b>Subject:</b> Re: [OpenAFS] Ticket cache file permission incorr=
ect of Openafs Client in Scientific Linux 6</div></div></div><div><div>On =
Mon, Jul 29, 2019 at 12:47:35PM +0800, huangql wrote:</div>=0A<div>> De=
ar all,</div>=0A<div>> </div>=0A<div>> I'm stuck with the ticket cac=
he file permission incorrect after users login farm with Pam module.=
In this case, users failed to run "kpasswd", "klist" command with t=
he following error.</div>=0A<div>> </div>=0A<div>> kpasswd: Credenti=
als cache permissions incorrect getting principal from ccache</div>=0A<div=
> </div>=0A<div>That sounds like an issue at the Kerberos or PAM (con=
figuration) layer;</div>=0A<div>asking on kerberos@mit.edu might be more l=
ikely to reach the right people.</div>=0A<div> </div>=0A<div>-Ben</di=
v>=0A<div> </div>=0A<div>> klist: Credentials cache permissions in=
correct while setting cache flags (ticket cache FILE:/tmp/krb5cc_60037_1Bd=
T0m)</div>=0A<div>> </div>=0A<div>> </div>=0A<div>> I found the e=
rror caused by the incorrect permission of ticket file(all the personal ti=
cket file with the root uid but right gid ).</div>=0A<div>> </div>=0A<d=
iv>> For example:</div>=0A<div>> </div>=0A<div>> -rw------- 1 roo=
t u07 469 Jul 29 10:00 /tmp/krb5cc_60037_1BdT0m</div>=0A<div>> </div>=
=0A<div>> And this issue happens in Scientific Linux 6 not in Scientifi=
c Linux 7.</div>=0A<div>> </div>=0A<div>> I attached the pam.d confi=
guration:</div>=0A<div>> </div>=0A<div>> </div>=0A<div>> [root@lx=
slc613 ~]# vi /etc/pam.d/system-auth-ac</div>=0A<div>> #%PAM-1.0</div>=
=0A<div>> # This file is auto-generated.</div>=0A<div>> # User chang=
es will be destroyed the next time authconfig is run.</div>=0A<div>> au=
th sufficient =
pam_krb5.so try_first_pass</div>=0A<div>> auth &=
nbsp; optional pam_afs_session.s=
o program=3D/usr/bin/aklog</div>=0A<div>> auth &=
nbsp; required pam_env.so</div>=
=0A<div>> auth sufficient&nbs=
p; pam_fprintd.so</div>=0A<div>> auth &nbs=
p; requisite pam_succeed_if.so u=
id >=3D 500 quiet</div>=0A<div>> auth &=
nbsp; required pam_deny.so</div>=0A<di=
v>> </div>=0A<div>> account sufficient =
pam_krb5.so</div>=0A<div>> account =
required pam_unix.so</div>=0A<div>> acco=
unt sufficient pam_localuser.so<=
/div>=0A<div>> account sufficient &n=
bsp; pam_succeed_if.so uid < 500 quiet</div>=0A<div>> account &=
nbsp; required pam_permit.so</di=
v>=0A<div>> </div>=0A<div>> password sufficient&nb=
sp; pam_krb5.so  =
; use_first_pass</div>=0A<div>> password requis=
ite pam_cracklib.so try_first_pass retry=3D3 type=
=3D</div>=0A<div>> password sufficient &nb=
sp; pam_unix.so sha512 shadow nullok try_first_pass use_authtok</div>=0A<d=
iv>> password required =
pam_deny.so</div>=0A<div>> </div>=0A<div>> session =
required pam_unix.so</div>=0A<div>>=
; session optional p=
am_krb5.so</div>=0A<div>> session optional =
; pam_afs_session.so program=3D/usr/bi=
n/aklog</div>=0A<div>> session optional &n=
bsp; pam_keyinit.so revoke</div>=0A<div>> session&nbs=
p; required pam_limits.so<=
/div>=0A<div>> session [success=3D1 default=3Di=
gnore] pam_succeed_if.so service in crond quiet use_uid</div>=0A<div>> =
~</div>=0A<div>> </div>=0A<div>> </div>=0A<div>> [root@lxslc613 ~=
]# vi /etc/pam.d/password-auth-ac</div>=0A<div>> #%PAM-1.0</div>=0A<div=
>> # This file is auto-generated.</div>=0A<div>> # User changes will=
be destroyed the next time authconfig is run.</div>=0A<div>> auth =
; sufficient pam_krb=
5.so try_first_pass</div>=0A<div>> auth &n=
bsp; optional pam_afs_session.so progr=
am=3D/usr/bin/aklog</div>=0A<div>> </div>=0A<div>> auth &=
nbsp; required pam_e=
nv.so</div>=0A<div>> auth suf=
ficient pam_unix.so nullok try_first_pass</div>=0A<div>&=
gt; auth requisite &n=
bsp; pam_succeed_if.so uid >=3D 500 quiet</div>=0A<div>> auth&=
nbsp; required =
pam_deny.so</div>=0A<div>> </div>=0A<div>> account  =
; sufficient pam_krb5.so</div>=0A<div>> a=
ccount required pam_=
unix.so</div>=0A<div>> account sufficient =
pam_localuser.so</div>=0A<div>> account &=
nbsp; sufficient pam_succeed_if.so uid < 500 quiet</d=
iv>=0A<div>> account required =
pam_permit.so</div>=0A<div>> </div>=0A<div>> password&n=
bsp; requisite pam_cracklib.so try_fir=
st_pass retry=3D3 type=3D</div>=0A<div>> password suf=
ficient pam_unix.so sha512 shadow nullok try_first_pass =
use_authtok</div>=0A<div>> password required &nb=
sp; pam_deny.so</div>=0A<div>> </div>=0A<div>> ses=
sion optional pam_kr=
b5.so</div>=0A<div>> session optional &nbs=
p; pam_afs_session.so program=3D/usr/bin/akl=
og</div>=0A<div>> session optional &=
nbsp; pam_keyinit.so revoke</div>=0A<div>> session &nb=
sp; required pam_limits.so</div>=
=0A<div>> session [success=3D1 default=3Dignore=
] pam_succeed_if.so service in crond quiet use_uid</div>=0A<div>> sessi=
on required pam_unix=
.so</div>=0A<div>> </div>=0A<div>> </div>=0A<div>> Does anyone kn=
ow about this issue and give me some clues? Any suggestions would be great=
ly appreciated. Many thanks.</div>=0A<div>> </div>=0A<div>> Regards,=
</div>=0A<div>> Qiulan</div>=0A<div>> </div>=0A<div>> </div>=0A<d=
iv>> huangql</div>=0A<div>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D</div>=0A<div>> Computing center,the Institute of =
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bsp; Tel: (+86) 10 8823 6087</di=
v>=0A<div>> P.O. Box 918-7 &nb=
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