[2556] in Kerberos-V5-bugs
pending/274: Request Help
daemon@ATHENA.MIT.EDU (YingZhaoHui)
Wed Dec 4 20:05:24 1996
Resent-From: gnats@rt-11.MIT.EDU (GNATS Management)
Resent-To: gnats-admin@rt-11.MIT.EDU
Resent-Reply-To: krb5-bugs@MIT.EDU, YingZhaoHui <s603@pdns.nudt.edu.cn>
Date: Thu, 5 Dec 1996 08:58:39 +0800
From: YingZhaoHui <s603@pdns.nudt.edu.cn>
To: krb5-bugs@MIT.EDU
>Number: 274
>Category: pending
>Synopsis: Request Help
>Confidential: yes
>Severity: serious
>Priority: medium
>Responsible: gnats-admin
>State: open
>Class: sw-bug
>Submitter-Id: unknown
>Arrival-Date: Wed Dec 04 20:05:01 EST 1996
>Last-Modified:
>Originator:
>Organization:
>Release:
>Environment:
>Description:
>How-To-Repeat:
>Fix:
>Audit-Trail:
>Unformatted:
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dear sir:
When I installed Kerberos edition BETA 5 on a workstation(Sun 4/75=
SPARCstation 2,OS is SunOS Release 5.4 Generic).
I've met the following problems.
1. When I executed the sample program as a command,it is proper.
The result is:
sun8% sserver 4500
sun8%
---------------------------
sun8% sclient sun8 4500
sendauth succeeded, reply is:
reply len 26, contents:
You are kerb5@NUDT.EDU.CN
sun8%=20
but when I treated the "sserver" as a daemon,it is wrong.
Here is the result:
sun8% sclient sun8
sclient: Software caused connection abort while using =
sendauth
sun8%
The line in file inetd.conf is as follows:=20
sample stream tcp nowait root=
/home/sun8/kerb5/src/appl/sample/sserver/sserver sserver
=20
2. When I executed the simple "sim_client" in first time, the display is=
as follows:
sun8% sim_client sun8
Got credentials for sample.
Sent authentication data: 421 bytes
Sent checksummed message: 122 bytes
Segmentation Fault (core dumped)
sun8%=20
and when I executed it after the first time,the display is proper.
When I treated the sim_server as a command,the display is:
sun8% sim_client sun8=20
Got credentials for sample.
Sent authentication data: 421 bytes
Sent checksummed message: 122 bytes
Sent encrypted message: 123 bytes=09
sun8%=20
-------------------
sun8% sim_server sun8
Received 421 bytes
sim_server: Wrong principal in request while reading =
request
sun8%=20
The line in file inetd.conf is:
sample dgram udp wait root=
/home/sun8/kerb5/src/appl/simple/server/sim_server sim_server
=20
3. When I create an account, using "login.krb5" as the login shell,it=
display Login incorrect
when I debug the program login.krb5, I found the packet (will send to=
kdc) is:
"\004\002tmeng\000\000NUDT.EDU.CN\0002`krbtgt\000NUDT.EDU.CN", '\000'
after send the packet,the return packet is:
"\004\004tmeng\000\000NUDT.EDU.CN\0002=A0=DEV\000\177=E6=C6\000\004\000h=FB\=
023;=FC=E2{\016n=AD=CA\231=D4\002=E8\032=E7W&\003=A4Rp\026=DDu\223\r71\002<\=
222f=C1=D1\020=CA4.\030\e\002~=F9=D2\"=A1\037P=ED=FCI\233=DFuPs=B6=BB;zU^T\0=
04\204=C5=A9d=E7=A1\215\212\023[=DAbMZ=C7=DA=E5\236=F0'=E8=CA/\205=CFCE=DDO=
=AF0=D1W=B5=FF=A3\230^=A1", '\000'=20
=20
Here is the debug's detail step by step:
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /home/sun8/kerb5/src/appl/bsd/login.krb5=20
login: tmeng
Password:=20
Breakpoint 1, send_recv (pkt=3D0xefffe5a8, rpkt=3D0xefffe0b8, f=3D3,=20
_to=3D0xefffe020, addrs=3D0x38180) at send_to_kdc.c:328
328 if ((numsent =3D sendto(f,(char *)(pkt->dat), pkt->length, 0,=20
(gdb) print *pkt
$4 =3D {length =3D 45, dat =3D=
"\004\002tmeng\000\000NUDT.EDU.CN\0002=A0=DEV`krbtgt\000NUDT.EDU.CN",=
'\000' <repeats 12 times>, "=EF\177+p", '\000' <repeats 36 times>,=
"=EF\177+p", '\000' <repeats 92 times>, "=EF\177+p", '\000' <repeats 43=
times>,=
"\004=F0\001\b\230=EFo=FA8\000\003b`\000\000\001@\000\000\000\200\000\003c=
=A0=EFo=B5x\000\000\000\001=EFpB=B4\000\000\000\000\000\003b`\000\000\000\00=
0=EF=FF=EF\211=EF=FF=E7\020=EFm\236d\000\000\000\000\000\000\000\001",=
'\000' <repeats 20 times>,=
"=EF\177+p\000\000\000\000-&\000\005\004=BD\200+\000\003\034\177\025\004\00=
0\000\000"..., mbz =3D 0}
(gdb) c
Continuing.
Breakpoint 2, send_recv (pkt=3D0xefffde70, rpkt=3D0xefffe0b8, f=3D3,=20
_to=3D0x8, addrs=3D0x38180) at send_to_kdc.c:365
365 recvresult =3D recvfrom(f, (char *)(rpkt->dat), =
sizeof(rpkt->dat), 0,
(gdb) next
367 if (recvresult < 0) {
(gdb) print *rpkt
$5 =3D {length =3D 0,=20
dat =3D=
"\004\004tmeng\000\000NUDT.EDU.CN\0002=A0=DEV\000\177=E6=C6\000\004\000h=FB=
\023;=FC=E2{\016n=AD=CA\231=D4\002=E8\032=E7W&\003=A4Rp\026=DDu\223\r71\002<=
\222f=C1=D1\020=CA4.\030\e\002~=F9=D2\"=A1\037P=ED=FCI\233=DFuPs=B6=BB;zU^T\=
004\204=C5=A9d=E7=A1\215\212\023[=DAbMZ=C7=DA=E5\236=F0'=E8=CA/\205=CFCE=DDO=
=AF0=D1W=B5=FF=A3\230^=A1", '\000' <repeats 1112 times>,=20
mbz =3D 0}
(gdb) c
Continuing.
Login incorrect
login:
4. I also want to know whether there is any special way to=20
debug the daemon "krb5kdc".
5. I don't know what's the uses of some dirctory and configes
except krb5.conf. For example: \athena, \\kerberos\\k_in_tkts,=
/etc/krbhst,and so forth. So I ask you which I must create. where
can I find informations about them.
6. After I install Kerberos on this workstation. I'll install appropriate=
part on other machine,include:
SPARCstation 2, OS is SUNOS Release 4.1.3(generic)
PC , OS is Windows for Workgroup
So I want to ask you whether there is some notes I should take?
I'm looking forward to your help. My e-mail is s603@nudt.edu.cn.
=20
Thank you!
Meng Teng 96.12.5
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