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Access ssh [message #2582]

Mon, 10 April 2006 18:10

lkhost.com
Messages: 6
Registered: April 2006

Junior Member

Hello

After create, i not obtain access per ssh w/ root password.

vzctl start 101
vzctl exec 101 service sshd start
vzctl set 101 --userpasswd root:t3mp

In ssh:
login as: root
Password:
Access denied

ssh running.
why?

Thanks

[Updated on: Mon, 10 April 2006 18:12]

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Re: Access ssh [message #2584 is a reply to message #2582]

Mon, 10 April 2006 19:22

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

1. are you able to 'enter' VPS?
2. what host OS, OVZ kernel and template do you use?

try:
# vzctl exec 101 mount devpts /dev/pts -t devpts
# vzctl exec 101 MAKEDEV tty
# vzctl exec 101 MAKEDEV pty

http://static.openvz.org/userbars/openvz-developer.png

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Re: Access ssh [message #2585 is a reply to message #2584]

Mon, 10 April 2006 20:29

lkhost.com
Messages: 6
Registered: April 2006

Junior Member

Hello, thanks Razz

Well, OS centos 4.2. Template centos-4-i386-minimal.

In grub:
title OpenVZ (2.6.8-022stab061.1-smp)
root (hd0,0)
kernel /boot/vmlinuz-2.6.8-022stab061.1-smp ro root=LABEL=/
initrd /boot/initrd-2.6.8-022stab061.1-smp.img

root@starznetwork [~]# vzctl exec 101 mount devpts /dev/pts -t devpts
Unable to open /dev/vzctl: No such device or address
Please check that vzdev kernel module is loaded and you have sufficient permissions to access the file.

root@starznetwork [~]# vzctl exec 101 MAKEDEV tty
Unable to open /dev/vzctl: No such device or address
Please check that vzdev kernel module is loaded and you have sufficient permissions to access the file.
root@starznetwork [~]# vzctl exec 101 MAKEDEV pty
Unable to open /dev/vzctl: No such device or address
Please check that vzdev kernel module is loaded and you have sufficient permissions to access the file.

Help Smile

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Re: Access ssh [message #2604 is a reply to message #2585]

Tue, 11 April 2006 10:06

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

you somehow lost /dev/vzctl file in host system. Did you install manually from sources or from RPM?

In any case, type:
# mknod /dev/vzctl c 126 0

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Re: Access ssh [message #2610 is a reply to message #2604]

Tue, 11 April 2006 13:53

lkhost.com
Messages: 6
Registered: April 2006

Junior Member

Hello, thanks again.

All rpm.
I copied of page: http://www.eth0.us/taxonomy/term/23
root@server17 [~]# /dev/vzctl
-bash: /dev/vzctl: Permission denied
root@server17 [~]# mknod /dev/vzctl c 126 0
mknod: `/dev/vzctl': File exists
some idea?

Help again....

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Re: Access ssh [message #2611 is a reply to message #2610]

Tue, 11 April 2006 13:59

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

1.
# ls -la /dev/vzctl

2. disable selinux on your node. see /etc/selinux/conf file.

3.
# strace -o -f out.file vzctl exec 101 ls
and post out.file here.

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Re: Access ssh [message #2618 is a reply to message #2611]

Tue, 11 April 2006 17:59

lkhost.com
Messages: 6
Registered: April 2006

Junior Member

Hello,

Selinux disable now.

root@server17 [~]# ls -la /dev/vzctl
crw------- 1 root root 126, 0 Apr 11 12:53 /dev/vzctl
root@server7 [~]# strace -o -f out.file vzctl exec 101 ls
strace: out.file: command not found
root@server17 [~]#

thanks Sad

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Re: Access ssh [message #2619 is a reply to message #2618]

Tue, 11 April 2006 18:39

kir
Messages: 1645
Registered: August 2005
Location: Moscow, Russia

Senior Member

(1) Initial "access denied" error was probably caused by the "PermitRootLogin no" setting in /etc/ssh/sshd_config. Edit the file, set "PermitRootLogin yes" and restart sshd.

(2) /dev/vzctl problem might be caused by the fact you haven't started openvz on the node after the reboot. Does running "/etc/init.d/vz start" helps?

Kir Kolyshkin

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Re: Access ssh [message #2620 is a reply to message #2619]

Tue, 11 April 2006 19:18

lkhost.com
Messages: 6
Registered: April 2006

Junior Member

Hello

"PermitRootLogin yes" and restart sshd , it okay.

(2) /dev/vzctl problem might be caused by the fact you haven't started openvz on the node after the reboot. Does running "/etc/init.d/vz start" helps?

vz started in reboot.

root@server17 [~]# /etc/init.d/vz start
OpenVZ already running [FAILED]

root@server7 [~]# /etc/init.d/vz stop
Shutting down VPS 101
Stopping OpenVZ: [ OK ]
root@server7 [~]# /etc/init.d/vz restart
Stopping OpenVZ: [ OK ]
Starting OpenVZ: [ OK ]
Bringing up interface venet0: [ OK ]
Configuring interface venet0: [ OK ]
Starting VPS 101: [ OK ]

and now? Shocked

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Re: Access ssh [message #2634 is a reply to message #2620]

Wed, 12 April 2006 15:27

dev
Messages: 1693
Registered: September 2005
Location: Moscow

Senior Member

Leonardo,

the problem is very simple, you use the same IP for both VPS and your host system.

If you want your VPS to use the same IP, you need at least setup NAT in host system. See this topic on forum for this:
http://forum.openvz.org/index.php?t=tree&goto=2254&# msg_2254
But since I see your host has multiple IPs, I don't think this is what you want...

So what you need is to leave one IP to host, remove other IPs from host configuration and assign them to your VPSs.

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