Re: how to deceive programs as if I were a local user?
On Thu, Apr 23, 2009 at 11:17:11AM -0700, Chris Cowart wrote: This error means the program tried to look up some name information for your UID number and failed. You need to configure the data source in /etc/nsswitch.conf: group: files cache ldap passwd: files cache ldap I've already set like you showed. But, not for /compat/linux/etc/nsswitch.conf . Configuring nsswitch.conf in linux emulation environment, the program worked properly. I did't know I had to set /compat/linux/etc/nsswitch.conf for linux binary compatibility. Thanks. -- Iwao, Koichiro m...@club.kyutech.ac.jp ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to deceive programs as if I were a local user?
On Sat, Apr 25, 2009 at 05:34:16PM +0900, Kouichiro Iwao typed: On Thu, Apr 23, 2009 at 11:17:11AM -0700, Chris Cowart wrote: This error means the program tried to look up some name information for your UID number and failed. You need to configure the data source in /etc/nsswitch.conf: group: files cache ldap passwd: files cache ldap I've already set like you showed. But, not for /compat/linux/etc/nsswitch.conf . Configuring nsswitch.conf in linux emulation environment, the program worked properly. I did't know I had to set /compat/linux/etc/nsswitch.conf for linux binary compatibility. That's interesting. Was there a /compat/linux/etc/nsswitch.conf before? I think that if it's not there, the linux emulation layer should take the system's /etc/nsswitch.conf as default. But I might be wrong(TM). ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to deceive programs as if I were a local user?
On Sat, Apr 25, 2009 at 11:22:22AM +0200, Ruben de Groot wrote:
Configuring nsswitch.conf in linux emulation environment,
the program worked properly. I did't know I had to set
/compat/linux/etc/nsswitch.conf for linux binary compatibility.
That's interesting. Was there a /compat/linux/etc/nsswitch.conf before?
I think that if it's not there, the linux emulation layer should take
the system's /etc/nsswitch.conf as default. But I might be wrong(TM).
What does TM mean? :-(
Yes. I didn't make /compat/linux/etc/nsswitch.conf but just modified
the file that had already existed. I also configured
/compat/linux/etc/yp.conf and /compat/linux/etc/sysconfig/network to
use NIS.
I examined the linux emulator takes /compat/linux/etc/nsswitch.conf.
/etc/nsswitch.conf:
$ grep -v -e ^$ -e ^# /etc/nsswitch.conf
group: compat
group_compat: nis
hosts: files dns
networks: files
passwd: compat
passwd_compat: nis
shells: files
services: compat
services_compat: nis
protocols: files
rpc: files
/compat/linux/etc/nsswitch.conf:
$ grep -v -e ^$ -e ^# /compat/linux/etc/nsswitch.conf
passwd: files nis
shadow: files nis
group: files nis
hosts: files dns
bootparams: nisplus [NOTFOUND=return] files
ethers: files
netmasks: files
networks: files
protocols: files
rpc:files
services: files
netgroup: nisplus
publickey: nisplus
automount: files nisplus
aliases:files nisplus
And the sample program sample.c:
#includesys/types.h
#includestdio.h
#includepwd.h
int main(){
struct passwd *pw;
pw = getpwuid(getuid());
if(pw){
printf(success\n);
} else {
printf(error\n);
}
}
I compiled the sample for both freebsd and linux binaries.
With the setting above I ran each binary, both binaries resulted success.
But when nis is not written in linux emulation environment's nsswitch.conf,
the linux binary results error.
--
Iwao, Koichiro m...@club.kyutech.ac.jp
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Re: how to deceive programs as if I were a local user?
On Sat, Apr 25, 2009 at 11:22:22AM +0200, Ruben de Groot wrote: On Sat, Apr 25, 2009 at 05:34:16PM +0900, Kouichiro Iwao typed: On Thu, Apr 23, 2009 at 11:17:11AM -0700, Chris Cowart wrote: This error means the program tried to look up some name information for your UID number and failed. You need to configure the data source in /etc/nsswitch.conf: group: files cache ldap passwd: files cache ldap I've already set like you showed. But, not for /compat/linux/etc/nsswitch.conf . Configuring nsswitch.conf in linux emulation environment, the program worked properly. I did't know I had to set /compat/linux/etc/nsswitch.conf for linux binary compatibility. That's interesting. Was there a /compat/linux/etc/nsswitch.conf before? I think that if it's not there, the linux emulation layer should take the system's /etc/nsswitch.conf as default. But I might be wrong(TM). Sorry, I misunderstood what you meant. # cd /compat/linux/etc # mv nsswitch.conf nsswitch.conf.dummy And I ran the sample program, the linux binary resuled success. The linux emulator seems to take the /etc/nsswitch.conf. However, it is true that /compat/linux/etc/nsswitch.conf had already existed when I was going to edit. -- Iwao, Koichiro m...@club.kyutech.ac.jp ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to deceive programs as if I were a local user?
On Thu, Apr 23, 2009 at 04:32:29PM +0900, Kouichiro Iwao typed: Hi. I'm going to connect to the remote server with nxclient. But, net/linux-nx-client does't work with non-local (NIS or LDAP) account. Connecting the remote server, nxclient says connection error and I found out that it caused by nxssh. If nxssh was executed by a NIS account, nxssh says, [m...@trueno ~]$ nxssh You don't exist, go away! How to deceive programs as if I were a user in /etc/master.passwd? I don't know anything of nxssh, but it sounds like a pam issue. Ruben ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to deceive programs as if I were a local user?
Ruben de Groot wrote: On Thu, Apr 23, 2009 at 04:32:29PM +0900, Kouichiro Iwao typed: Hi. I'm going to connect to the remote server with nxclient. But, net/linux-nx-client does't work with non-local (NIS or LDAP) account. Connecting the remote server, nxclient says connection error and I found out that it caused by nxssh. If nxssh was executed by a NIS account, nxssh says, [m...@trueno ~]$ nxssh You don't exist, go away! How to deceive programs as if I were a user in /etc/master.passwd? I don't know anything of nxssh, but it sounds like a pam issue. This error means the program tried to look up some name information for your UID number and failed. You need to configure the data source in /etc/nsswitch.conf: group: files cache ldap passwd: files cache ldap -- Chris Cowart Network Technical Lead Network Infrastructure Services, RSSP-IT UC Berkeley pgpfcq6FgaN0i.pgp Description: PGP signature
