RE: [Vserver] Virtualizing a physical server

2006-01-25 Thread smagnuson 

yup


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Ehab Heikal
Sent: Wednesday, January 25, 2006 7:30 PM
To: vserver@list.linux-vserver.org
Subject: RE: [Vserver] Virtualizing a physical server


The section starting with 
sudo vi /vservers/vrhas3template01/etc/resolv.conf
Are these files that I should manually edit?

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, January 25, 2006 7:02 PM
To: vserver@list.linux-vserver.org
Subject: RE: [Vserver] Virtualizing a physical server


This is what I did.  Modify as required.

Hope it helps.
sig



Creating a vserver from a non-vserver host (The server was redhat AS 3)

* Clone host1 (non-vserver) to host2:vserver1

calcrs03 --> calvunix02:rhas3template01


ssh calvunix02
sudo /etc/rc.d/rsyncd start
sudo vserver vrhas3template01 build -m skeleton -n vrhas3template01
--context 30 --hostname vrhas3template01.corporate.net --interface
172.27.XX.XX --netdev eth0 --netmask 255.255.248.0 --initstyle plain

ssh calcrs03
cat /home/sig/rsync-exclude.txt
/u01/
/u02/
/u03/
/u04/
/u05/
/u06/
/u07/
/u08/
/u09/
/u10/
/u11/
/u99/
/unix_data/
/proc/
/dev/
/boot/

sudo rsync -avz -e ssh --exclude-from=/home/sig/rsync-exclude.txt /
172.27.XX.XX:/vservers/vrhas3template01

ssh calvunix02
sudo vi /vservers/vrhas3template01/etc/resolv.conf
sudo vi /vservers/vrhas3template01/etc/fstab
sudo vi /vservers/vrhas3template01/etc/hosts
sudo vi /vservers/vrhas3template01/etc/ssh/sshd_config
X11UseLocalhost no - Needed for vserver x forwarding
sudo vi /vservers/vrhas3template01/etc/sysconfig/network
set hostname
sudo vi /vservers/vrhas3template01/etc/rc.sysinit
remove mtab references
remove tty references
sudo vi /vservers/vrhas3template01/etc/inittab
remove tty references
check over /usr/local/etc/vservers/vrhas3template01/..

sudo vserver vrhas3template01 start
sudo vserver-stat
sudo vserver vrhas3template01 enter










-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Ehab Heikal
Sent: Tuesday, January 24, 2006 6:13 PM
To: vserver@list.linux-vserver.org
Subject: [Vserver] Virtualizing a physical server


I need to setup a development or staging server of an existing running
server. Is there a tool to do so?

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RE: [Vserver] Virtualizing a physical server

2006-01-25 Thread Ehab Heikal 
The section starting with 
sudo vi /vservers/vrhas3template01/etc/resolv.conf
Are these files that I should manually edit?

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, January 25, 2006 7:02 PM
To: vserver@list.linux-vserver.org
Subject: RE: [Vserver] Virtualizing a physical server


This is what I did.  Modify as required.

Hope it helps.
sig



Creating a vserver from a non-vserver host (The server was redhat AS 3)

* Clone host1 (non-vserver) to host2:vserver1

calcrs03 --> calvunix02:rhas3template01


ssh calvunix02
sudo /etc/rc.d/rsyncd start
sudo vserver vrhas3template01 build -m skeleton -n vrhas3template01
--context 30 --hostname vrhas3template01.corporate.net --interface
172.27.XX.XX --netdev eth0 --netmask 255.255.248.0 --initstyle plain

ssh calcrs03
cat /home/sig/rsync-exclude.txt
/u01/
/u02/
/u03/
/u04/
/u05/
/u06/
/u07/
/u08/
/u09/
/u10/
/u11/
/u99/
/unix_data/
/proc/
/dev/
/boot/

sudo rsync -avz -e ssh --exclude-from=/home/sig/rsync-exclude.txt /
172.27.XX.XX:/vservers/vrhas3template01

ssh calvunix02
sudo vi /vservers/vrhas3template01/etc/resolv.conf
sudo vi /vservers/vrhas3template01/etc/fstab
sudo vi /vservers/vrhas3template01/etc/hosts
sudo vi /vservers/vrhas3template01/etc/ssh/sshd_config
X11UseLocalhost no - Needed for vserver x forwarding
sudo vi /vservers/vrhas3template01/etc/sysconfig/network
set hostname
sudo vi /vservers/vrhas3template01/etc/rc.sysinit
remove mtab references
remove tty references
sudo vi /vservers/vrhas3template01/etc/inittab
remove tty references
check over /usr/local/etc/vservers/vrhas3template01/..

sudo vserver vrhas3template01 start
sudo vserver-stat
sudo vserver vrhas3template01 enter










-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Ehab Heikal
Sent: Tuesday, January 24, 2006 6:13 PM
To: vserver@list.linux-vserver.org
Subject: [Vserver] Virtualizing a physical server


I need to setup a development or staging server of an existing running
server. Is there a tool to do so?

___
Vserver mailing list
Vserver@list.linux-vserver.org
http://list.linux-vserver.org/mailman/listinfo/vserver
___
Vserver mailing list
Vserver@list.linux-vserver.org
http://list.linux-vserver.org/mailman/listinfo/vserver

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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 08:25:20PM +0200, Alex Lyashkov wrote:
> ? ???, 25.01.2006, ? 19:51, Herbert Poetzl ?:
> > On Wed, Jan 25, 2006 at 07:27:11PM +0200, Alex Lyashkov wrote:
> > > ? ???, 25.01.2006, ? 19:07, Herbert Poetzl ?:
> > > > On Wed, Jan 25, 2006 at 06:51:14PM +0200, Alex Lyashkov wrote:
> > > > > ? ???, 25.01.2006, ? 18:47, Herbert Poetzl ?:
> > > > > > On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> > > > > > > Hi,
> > > > > > > 
> > > > > > > It seems that abstract UNIX sockets "leak" from a vserver. I'm 
> > > > > > > trying to run
> > > > > > > the same java app inside two vservers and only the first one 
> > > > > > > started succeeds.
> > > > > > > 
> > > > > > > The critical piece from strace is:
> > > > > > > 
> > > > > > > 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> > > > > > > 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, 
> > > > > > > [7738151124464566273], 4) = 0
> > > > > > > 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> > > > > > > PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE 
> > > > > > > (Address already in use)
> > > > > > > 
> > > > > > > Looking at unix_bind() in net/unix/af_unix.c, it would seem that 
> > > > > > > the socket
> > > > > > > hashes are identical across all vservers and that no additional 
> > > > > > > context check
> > > > > > > is used. There is a context check in include/net/af_unix.h, but 
> > > > > > > this
> > > > > > > does not seem to be used when creating sockets from unix_bind().
> > > > > > > 
> > > > > > > Any ideas?
> > > > > > 
> > > > > > this should help ...
> > > > > > 
> > > > > > --- linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-21 18:28:17 
> > > > > > +0100
> > > > > > +++ linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-25 17:22:11 
> > > > > > +0100
> > > > > > @@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
> > > > > > sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
> > > > > > struct unix_sock *u = unix_sk(s);
> > > > > >  
> > > > > > +   if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
> > > > > > +   continue;
> > > > > > if (u->addr->len == len &&
> > > > > > !memcmp(u->addr->name, sunname, len))
> > > > > > goto found;
> > > > > > 
> > > > > > thanks for spotting this ...
> > > > > > 
> > > > > this not a full fix. 
> > > > > this not fix issue for FS based unix sockets. 
> > > > 
> > > > sorry Alex, but the filesystem case is already covered
> > > > by the namespaces, which you can verify easily ...
> > > > 
> > > > so everything fine here ...
> > > > 
> > > don`t. inode must have one context id (just are error or if
> > > unification), but access/bind from an other context.
> > 
> > could you provide an example where it fails for you?
> > 
> look into unix_bind. 
> you can`t create unix socket if fs consist fs object with same name. One
> object can be create via chroot or via full path and second is program
> inside VPS.

well, it's the idea of those sockets to have a filesystem
representation, so naturally it will give an error when
the filesystem entry already exists (which IMHO is the
right thing here). nevertheless, as the guests will not
'share' the same namespace and therfore will have different
areas of the filesystem assigned, they will be able to
create one instance (of a given name) per context, which
is the same as on a real machine, no?

best,
Herbert

> -- 
> FreeVPS Developers Team  http://www.freevps.com
> Positive Softwarehttp://www.psoft.net
> 
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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Alex Lyashkov 
В Срд, 25.01.2006, в 19:51, Herbert Poetzl пишет:
> On Wed, Jan 25, 2006 at 07:27:11PM +0200, Alex Lyashkov wrote:
> > ? ???, 25.01.2006, ? 19:07, Herbert Poetzl ?:
> > > On Wed, Jan 25, 2006 at 06:51:14PM +0200, Alex Lyashkov wrote:
> > > > ? ???, 25.01.2006, ? 18:47, Herbert Poetzl ?:
> > > > > On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> > > > > > Hi,
> > > > > > 
> > > > > > It seems that abstract UNIX sockets "leak" from a vserver. I'm 
> > > > > > trying to run
> > > > > > the same java app inside two vservers and only the first one 
> > > > > > started succeeds.
> > > > > > 
> > > > > > The critical piece from strace is:
> > > > > > 
> > > > > > 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> > > > > > 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 
> > > > > > 4) = 0
> > > > > > 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> > > > > > PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE 
> > > > > > (Address already in use)
> > > > > > 
> > > > > > Looking at unix_bind() in net/unix/af_unix.c, it would seem that 
> > > > > > the socket
> > > > > > hashes are identical across all vservers and that no additional 
> > > > > > context check
> > > > > > is used. There is a context check in include/net/af_unix.h, but this
> > > > > > does not seem to be used when creating sockets from unix_bind().
> > > > > > 
> > > > > > Any ideas?
> > > > > 
> > > > > this should help ...
> > > > > 
> > > > > --- linux-2.6.16-rc1/net/unix/af_unix.c   2006-01-21 18:28:17 
> > > > > +0100
> > > > > +++ linux-2.6.16-rc1/net/unix/af_unix.c   2006-01-25 17:22:11 
> > > > > +0100
> > > > > @@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
> > > > >   sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
> > > > >   struct unix_sock *u = unix_sk(s);
> > > > >  
> > > > > + if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
> > > > > + continue;
> > > > >   if (u->addr->len == len &&
> > > > >   !memcmp(u->addr->name, sunname, len))
> > > > >   goto found;
> > > > > 
> > > > > thanks for spotting this ...
> > > > > 
> > > > this not a full fix. 
> > > > this not fix issue for FS based unix sockets. 
> > > 
> > > sorry Alex, but the filesystem case is already covered
> > > by the namespaces, which you can verify easily ...
> > > 
> > > so everything fine here ...
> > > 
> > don`t. inode must have one context id (just are error or if
> > unification), but access/bind from an other context.
> 
> could you provide an example where it fails for you?
> 
look into unix_bind. 
you can`t create unix socket if fs consist fs object with same name. One
object can be create via chroot or via full path and second is program
inside VPS.

-- 
FreeVPS Developers Team  http://www.freevps.com
Positive Softwarehttp://www.psoft.net

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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 07:27:11PM +0200, Alex Lyashkov wrote:
> ? ???, 25.01.2006, ? 19:07, Herbert Poetzl ?:
> > On Wed, Jan 25, 2006 at 06:51:14PM +0200, Alex Lyashkov wrote:
> > > ? ???, 25.01.2006, ? 18:47, Herbert Poetzl ?:
> > > > On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> > > > > Hi,
> > > > > 
> > > > > It seems that abstract UNIX sockets "leak" from a vserver. I'm trying 
> > > > > to run
> > > > > the same java app inside two vservers and only the first one started 
> > > > > succeeds.
> > > > > 
> > > > > The critical piece from strace is:
> > > > > 
> > > > > 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> > > > > 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 
> > > > > 4) = 0
> > > > > 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> > > > > PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE 
> > > > > (Address already in use)
> > > > > 
> > > > > Looking at unix_bind() in net/unix/af_unix.c, it would seem that the 
> > > > > socket
> > > > > hashes are identical across all vservers and that no additional 
> > > > > context check
> > > > > is used. There is a context check in include/net/af_unix.h, but this
> > > > > does not seem to be used when creating sockets from unix_bind().
> > > > > 
> > > > > Any ideas?
> > > > 
> > > > this should help ...
> > > > 
> > > > --- linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-21 18:28:17 +0100
> > > > +++ linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-25 17:22:11 +0100
> > > > @@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
> > > > sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
> > > > struct unix_sock *u = unix_sk(s);
> > > >  
> > > > +   if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
> > > > +   continue;
> > > > if (u->addr->len == len &&
> > > > !memcmp(u->addr->name, sunname, len))
> > > > goto found;
> > > > 
> > > > thanks for spotting this ...
> > > > 
> > > this not a full fix. 
> > > this not fix issue for FS based unix sockets. 
> > 
> > sorry Alex, but the filesystem case is already covered
> > by the namespaces, which you can verify easily ...
> > 
> > so everything fine here ...
> > 
> don`t. inode must have one context id (just are error or if
> unification), but access/bind from an other context.

could you provide an example where it fails for you?

TIA,
Herbert

> -- 
> FreeVPS Developers Team  http://www.freevps.com
> Positive Softwarehttp://www.psoft.net
> 
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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Alex Lyashkov 
В Срд, 25.01.2006, в 19:07, Herbert Poetzl пишет:
> On Wed, Jan 25, 2006 at 06:51:14PM +0200, Alex Lyashkov wrote:
> > ? ???, 25.01.2006, ? 18:47, Herbert Poetzl ?:
> > > On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> > > > Hi,
> > > > 
> > > > It seems that abstract UNIX sockets "leak" from a vserver. I'm trying 
> > > > to run
> > > > the same java app inside two vservers and only the first one started 
> > > > succeeds.
> > > > 
> > > > The critical piece from strace is:
> > > > 
> > > > 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> > > > 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 4) 
> > > > = 0
> > > > 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> > > > PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE (Address 
> > > > already in use)
> > > > 
> > > > Looking at unix_bind() in net/unix/af_unix.c, it would seem that the 
> > > > socket
> > > > hashes are identical across all vservers and that no additional context 
> > > > check
> > > > is used. There is a context check in include/net/af_unix.h, but this
> > > > does not seem to be used when creating sockets from unix_bind().
> > > > 
> > > > Any ideas?
> > > 
> > > this should help ...
> > > 
> > > --- linux-2.6.16-rc1/net/unix/af_unix.c   2006-01-21 18:28:17 +0100
> > > +++ linux-2.6.16-rc1/net/unix/af_unix.c   2006-01-25 17:22:11 +0100
> > > @@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
> > >   sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
> > >   struct unix_sock *u = unix_sk(s);
> > >  
> > > + if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
> > > + continue;
> > >   if (u->addr->len == len &&
> > >   !memcmp(u->addr->name, sunname, len))
> > >   goto found;
> > > 
> > > thanks for spotting this ...
> > > 
> > this not a full fix. 
> > this not fix issue for FS based unix sockets. 
> 
> sorry Alex, but the filesystem case is already covered
> by the namespaces, which you can verify easily ...
> 
> so everything fine here ...
> 
don`t. 
inode must have one context id (just are error or if unification), but
access/bind from an other context. 


-- 
FreeVPS Developers Team  http://www.freevps.com
Positive Softwarehttp://www.psoft.net

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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 06:51:14PM +0200, Alex Lyashkov wrote:
> ? ???, 25.01.2006, ? 18:47, Herbert Poetzl ?:
> > On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> > > Hi,
> > > 
> > > It seems that abstract UNIX sockets "leak" from a vserver. I'm trying to 
> > > run
> > > the same java app inside two vservers and only the first one started 
> > > succeeds.
> > > 
> > > The critical piece from strace is:
> > > 
> > > 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> > > 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 4) = 0
> > > 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> > > PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE (Address 
> > > already in use)
> > > 
> > > Looking at unix_bind() in net/unix/af_unix.c, it would seem that the 
> > > socket
> > > hashes are identical across all vservers and that no additional context 
> > > check
> > > is used. There is a context check in include/net/af_unix.h, but this
> > > does not seem to be used when creating sockets from unix_bind().
> > > 
> > > Any ideas?
> > 
> > this should help ...
> > 
> > --- linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-21 18:28:17 +0100
> > +++ linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-25 17:22:11 +0100
> > @@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
> > sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
> > struct unix_sock *u = unix_sk(s);
> >  
> > +   if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
> > +   continue;
> > if (u->addr->len == len &&
> > !memcmp(u->addr->name, sunname, len))
> > goto found;
> > 
> > thanks for spotting this ...
> > 
> this not a full fix. 
> this not fix issue for FS based unix sockets. 

sorry Alex, but the filesystem case is already covered
by the namespaces, which you can verify easily ...

so everything fine here ...

best,
Herbert

> -- 
> FreeVPS Developers Team  http://www.freevps.com
> Positive Softwarehttp://www.psoft.net
> 
> ___
> Vserver mailing list
> Vserver@list.linux-vserver.org
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RE: [Vserver] Virtualizing a physical server

2006-01-25 Thread smagnuson 
This is what I did.  Modify as required.

Hope it helps.
sig



Creating a vserver from a non-vserver host (The server was redhat AS 3)

* Clone host1 (non-vserver) to host2:vserver1

calcrs03 --> calvunix02:rhas3template01


ssh calvunix02
sudo /etc/rc.d/rsyncd start
sudo vserver vrhas3template01 build -m skeleton -n vrhas3template01 --context 
30 --hostname vrhas3template01.corporate.net --interface 172.27.XX.XX --netdev 
eth0 --netmask 255.255.248.0 --initstyle plain

ssh calcrs03
cat /home/sig/rsync-exclude.txt
/u01/
/u02/
/u03/
/u04/
/u05/
/u06/
/u07/
/u08/
/u09/
/u10/
/u11/
/u99/
/unix_data/
/proc/
/dev/
/boot/

sudo rsync -avz -e ssh --exclude-from=/home/sig/rsync-exclude.txt / 
172.27.XX.XX:/vservers/vrhas3template01

ssh calvunix02
sudo vi /vservers/vrhas3template01/etc/resolv.conf
sudo vi /vservers/vrhas3template01/etc/fstab
sudo vi /vservers/vrhas3template01/etc/hosts
sudo vi /vservers/vrhas3template01/etc/ssh/sshd_config
X11UseLocalhost no - Needed for vserver x forwarding
sudo vi /vservers/vrhas3template01/etc/sysconfig/network
set hostname
sudo vi /vservers/vrhas3template01/etc/rc.sysinit
remove mtab references
remove tty references
sudo vi /vservers/vrhas3template01/etc/inittab
remove tty references
check over /usr/local/etc/vservers/vrhas3template01/..

sudo vserver vrhas3template01 start
sudo vserver-stat
sudo vserver vrhas3template01 enter










-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Ehab Heikal
Sent: Tuesday, January 24, 2006 6:13 PM
To: vserver@list.linux-vserver.org
Subject: [Vserver] Virtualizing a physical server


I need to setup a development or staging server of an existing running
server. Is there a tool to do so?

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Re: [Vserver] Virtualizing a physical server

2006-01-25 Thread Joep Gommers 
Not at all, sorry bout thatIll just go back to cleaning my houseits what im good at :)J-On 1/25/06, Herbert Poetzl <
[EMAIL PROTECTED]> wrote:On Wed, Jan 25, 2006 at 04:48:07PM +0100, Joep Gommers wrote:
> If the skeleton method in still to heavy for you to start off with try> download prebuild virtualmachine guests:> After you installed a (rpm:> 
http://www.virtualinfrastructure.nl/downloads/kernel-2.6.11-1.35_FC3.vs2.0.0.0.rc4.i686.rpm)> kernel just unpak it> bash# wget> 
http://www.virtualinfrastructure.nl/downloads/precompiled/virtualinfrastructure-11012006-fc3-minimal.tgz> bash# tar xvzf virtualinfrastructure-11012006-fc3-minimal.tgz> bash# mkdir /etc/vservers> bash# mv fc3_minimal /etc/vservers
>> en start the thing:> bash# vserver fc3_minimal start>> bash# vserver fc3_minimal enter>> be aware: This is a fedora core 3 guest and fedora code 3 kernel. For other> versions check the vserver website.
well, good idea, but how would that help him withvirtualizing an existing machine?TIA,Herbert> Cheers,> J->> On 1/25/06, Herbert Poetzl <
[EMAIL PROTECTED]> wrote:> >> > On Wed, Jan 25, 2006 at 03:12:46AM +0200, Ehab Heikal wrote:> > > I need to setup a development or staging server of an existing running> > > server. Is there a tool to do so?
> >> > just create a new skeleton guest with the -m skeleton> > build method, which resembles the physical system> > regarding networking and naming, the copy over the> > entire contents of the physical machine, excluding
> > the /dev and /proc directory to the skeleton dir> > (cp -a, dump/restore, tar, rsync, ...)> >> > starting and stopping the guest should work after> > that, but you might want to clean up scripts later
> > to avoid a bunch of failures when the new guest> > tries to mess with the hardware ...> >> > HTH,> > Herbert> >> > > ___
> > > Vserver mailing list> > > Vserver@list.linux-vserver.org> > > 
http://list.linux-vserver.org/mailman/listinfo/vserver> > ___> > Vserver mailing list> > Vserver@list.linux-vserver.org
> > http://list.linux-vserver.org/mailman/listinfo/vserver> >> ___> Vserver mailing list
> Vserver@list.linux-vserver.org> http://list.linux-vserver.org/mailman/listinfo/vserver

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Re: [Vserver] Virtualizing a physical server

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 04:48:07PM +0100, Joep Gommers wrote:
> If the skeleton method in still to heavy for you to start off with try
> download prebuild virtualmachine guests:
> After you installed a (rpm:
> http://www.virtualinfrastructure.nl/downloads/kernel-2.6.11-1.35_FC3.vs2.0.0.0.rc4.i686.rpm)
> kernel just unpak it
> bash# wget
> http://www.virtualinfrastructure.nl/downloads/precompiled/virtualinfrastructure-11012006-fc3-minimal.tgz
> bash# tar xvzf virtualinfrastructure-11012006-fc3-minimal.tgz
> bash# mkdir /etc/vservers
> bash# mv fc3_minimal /etc/vservers
> 
> en start the thing:
> bash# vserver fc3_minimal start
> 
> bash# vserver fc3_minimal enter
> 
> be aware: This is a fedora core 3 guest and fedora code 3 kernel. For other
> versions check the vserver website.

well, good idea, but how would that help him with
virtualizing an existing machine?

TIA,
Herbert

> Cheers,
> J-
> 
> On 1/25/06, Herbert Poetzl <[EMAIL PROTECTED]> wrote:
> >
> > On Wed, Jan 25, 2006 at 03:12:46AM +0200, Ehab Heikal wrote:
> > > I need to setup a development or staging server of an existing running
> > > server. Is there a tool to do so?
> >
> > just create a new skeleton guest with the -m skeleton
> > build method, which resembles the physical system
> > regarding networking and naming, the copy over the
> > entire contents of the physical machine, excluding
> > the /dev and /proc directory to the skeleton dir
> > (cp -a, dump/restore, tar, rsync, ...)
> >
> > starting and stopping the guest should work after
> > that, but you might want to clean up scripts later
> > to avoid a bunch of failures when the new guest
> > tries to mess with the hardware ...
> >
> > HTH,
> > Herbert
> >
> > > ___
> > > Vserver mailing list
> > > Vserver@list.linux-vserver.org
> > > http://list.linux-vserver.org/mailman/listinfo/vserver
> > ___
> > Vserver mailing list
> > Vserver@list.linux-vserver.org
> > http://list.linux-vserver.org/mailman/listinfo/vserver
> >

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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Alex Lyashkov 
В Срд, 25.01.2006, в 18:47, Herbert Poetzl пишет:
> On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> > Hi,
> > 
> > It seems that abstract UNIX sockets "leak" from a vserver. I'm trying to run
> > the same java app inside two vservers and only the first one started 
> > succeeds.
> > 
> > The critical piece from strace is:
> > 
> > 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> > 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 4) = 0
> > 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> > PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE (Address 
> > already in use)
> > 
> > Looking at unix_bind() in net/unix/af_unix.c, it would seem that the socket
> > hashes are identical across all vservers and that no additional context 
> > check
> > is used. There is a context check in include/net/af_unix.h, but this
> > does not seem to be used when creating sockets from unix_bind().
> > 
> > Any ideas?
> 
> this should help ...
> 
> --- linux-2.6.16-rc1/net/unix/af_unix.c   2006-01-21 18:28:17 +0100
> +++ linux-2.6.16-rc1/net/unix/af_unix.c   2006-01-25 17:22:11 +0100
> @@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
>   sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
>   struct unix_sock *u = unix_sk(s);
>  
> + if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
> + continue;
>   if (u->addr->len == len &&
>   !memcmp(u->addr->name, sunname, len))
>   goto found;
> 
> thanks for spotting this ...
> 
this not a full fix. 
this not fix issue for FS based unix sockets. 

-- 
FreeVPS Developers Team  http://www.freevps.com
Positive Softwarehttp://www.psoft.net

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Re: [Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 03:35:23PM +0100, Andreas Schultz wrote:
> Hi,
> 
> It seems that abstract UNIX sockets "leak" from a vserver. I'm trying to run
> the same java app inside two vservers and only the first one started succeeds.
> 
> The critical piece from strace is:
> 
> 20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
> 20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 4) = 0
> 20397 bind(5, {sa_family=AF_FILE, [EMAIL 
> PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE (Address 
> already in use)
> 
> Looking at unix_bind() in net/unix/af_unix.c, it would seem that the socket
> hashes are identical across all vservers and that no additional context check
> is used. There is a context check in include/net/af_unix.h, but this
> does not seem to be used when creating sockets from unix_bind().
> 
> Any ideas?

this should help ...

--- linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-21 18:28:17 +0100
+++ linux-2.6.16-rc1/net/unix/af_unix.c 2006-01-25 17:22:11 +0100
@@ -238,6 +238,8 @@ static struct sock *__unix_find_socket_b
sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
struct unix_sock *u = unix_sk(s);
 
+   if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH))
+   continue;
if (u->addr->len == len &&
!memcmp(u->addr->name, sunname, len))
goto found;

thanks for spotting this ...

best,
Herbert

> Regards
> Andreas
> 



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Re: [Vserver] Virtualizing a physical server

2006-01-25 Thread Joep Gommers 
If the skeleton method in still to heavy for you to start off with try download prebuild virtualmachine guests:After you installed a (rpm: 
http://www.virtualinfrastructure.nl/downloads/kernel-2.6.11-1.35_FC3.vs2.0.0.0.rc4.i686.rpm) kernel just unpak itbash# wget 
http://www.virtualinfrastructure.nl/downloads/precompiled/virtualinfrastructure-11012006-fc3-minimal.tgzbash# tar xvzf virtualinfrastructure-11012006-fc3-minimal.tgzbash# mkdir /etc/vserversbash# mv fc3_minimal /etc/vservers
en start the thing:bash# vserver fc3_minimal startbash# vserver fc3_minimal enterbe aware: This is a fedora core 3 guest and fedora code 3 kernel. For other versions check the vserver website.
Cheers,J-On 1/25/06, Herbert Poetzl <[EMAIL PROTECTED]> wrote:
On Wed, Jan 25, 2006 at 03:12:46AM +0200, Ehab Heikal wrote:> I need to setup a development or staging server of an existing running> server. Is there a tool to do so?just create a new skeleton guest with the -m skeleton
build method, which resembles the physical systemregarding networking and naming, the copy over theentire contents of the physical machine, excludingthe /dev and /proc directory to the skeleton dir(cp -a, dump/restore, tar, rsync, ...)
starting and stopping the guest should work afterthat, but you might want to clean up scripts laterto avoid a bunch of failures when the new guesttries to mess with the hardware ...HTH,Herbert
> ___> Vserver mailing list> Vserver@list.linux-vserver.org> 
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Re: [Vserver] Virtualizing a physical server

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 03:12:46AM +0200, Ehab Heikal wrote:
> I need to setup a development or staging server of an existing running
> server. Is there a tool to do so?

just create a new skeleton guest with the -m skeleton
build method, which resembles the physical system 
regarding networking and naming, the copy over the
entire contents of the physical machine, excluding
the /dev and /proc directory to the skeleton dir
(cp -a, dump/restore, tar, rsync, ...)

starting and stopping the guest should work after
that, but you might want to clean up scripts later
to avoid a bunch of failures when the new guest
tries to mess with the hardware ...

HTH,
Herbert

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Re: [Vserver] I/O CFQ scheduler

2006-01-25 Thread Herbert Poetzl 
On Tue, Jan 24, 2006 at 08:06:38PM +0300, Vasily Tarasov wrote:
> Hello.
> 
> Can you tell me, please, can util-vserver-0.30.209 
> 
> work with I/O CFQ Scheduler already?

yes, it's a 'hard-coded' kernel feature of the devel branch
(for now) 

> How?

just enable the cfq i/o scheduler for your system/tasks
and the accounting will be done per context (guest)

in the future I guess there will be util support to fine
tune the priorities and set the I/O groups ...

HTH,
Herbert

> 
> Thank you.
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Re: [Vserver] vservers don't start after update to 2.01

2006-01-25 Thread Herbert Poetzl 
On Wed, Jan 25, 2006 at 12:45:55PM +0100, Jens Holze wrote:
> 2006/1/13, Jens Holze <[EMAIL PROTECTED]>:
> > 2006/1/11, Herbert Poetzl <[EMAIL PROTECTED]>:
> > > On Wed, Jan 11, 2006 at 04:03:58PM +0100, Jens Holze wrote:
> > > > Hi!
> > > >
> > > > I updated VServer from 2.00 to 2.01 by patching a new 2.6.14.4-kernel
> > > > and installing the utils (209) from self-build rpms on Fedora Core 4.
> > >
> > > maybe the installation of your 'self built' utils is a
> > > little incomplete ... I'd try with the source tar, and
> > > after a proper configuration (to get your pathes right)
> > > do the 'make install' and 'make install-distribution'
> >
> > I erased the rpms and installed from source (with the prefix=/).
> > Everything is in place now, save_ctxinfo in /lib/util-vserver/ .
> >
> > > > Everything worked prior to that but since then I can't manage to start
> > > > any debian-based Vservers. I thought something with the kernel went
> > > > wrong so I build it anew but that didn't solve anything.
> > > > When trying to start a vserver I get:
> > > >
> > > > // RTNETLINK answers: File exists
> > >
> > > this means that the 'configured' IP(s) already exists,
> > > maybe with a different netmask/prefix, check with
> > > 'ip addr ls' and remove the 'offending' IP(s)
> > >
> >
> > Yeah I know, this one is not the problem, I just took existing
> > settings and made a new server from it hoping that would eliminate the
> > save_ctxinfo problem...
> >
> > > > // save_ctxinfo: execv(): No such file or directory
> > >
> > > this very much looks like the save_ctxinfo is failing
> > > possible reasons could be:
> > >
> > >  - /lib/util-vserver/save_ctxinfo (or wherever it is
> > >on your distro) is not executable or missing
> > >  - /etc/vservers/.defaults/run.rev is not pointing
> > >to a valid directory to store the info
> > >  - the directory /var/run/vservers.rev is not writeable
> > >or does not exist
> > >
> >
> > I thought so but: save_ctxinfo is at the exact location and
> > executable... /run.rev is there and pointing to /var/run/vservers.rev
> > which exists and is writeable (there are directories inside for the
> > fedora vservers which are running!). It must be something special that
> > is done in debian vservers which doesn't happen with fedora core
> > vservers?!
> > Also, I wonder where the vserver starting script looks for this file,
> > is it possible that I have to edit any config file? I mean it's in the
> > same directory so why doesn't he find it?
> >
> > > > // An error occured while executing the vserver startup sequence; when
> > > > // there are no other messages, it is very likely that the init-script
> > > > // (/etc/init.d/rc 3) failed.
> > > > //
> > > > // Common causes are:
> > > > // * /etc/rc.d/rc on Fedora Core 1 and RH9 fails always; the 'apt-rpm' 
> > > > build
> > > > //   method knows how to deal with this, but on existing installations,
> > > > //   appending 'true' to this file will help.
> > > > //
> > > > // Failed to start vserver 'debian_two'
> > > >
> > > > The common causes don't really help and I can't think of anything
> > > > else. I even build an all new debian vserver but even this one doesn't
> > > > boot. Other (Fedora-based) vservers do work perfectly. Any help would
> > > > be greatly appreciated.
> > >
> > > yes, well, to explain all kinds of errors in a tool
> > > of this complexity is almost impossible ...
> >
> > Of course it is, it's just that its obviously a different problem as
> > far as I get it.
> >
> > Jens
> > > HTH,
> > > Herbert
> > >
> > > >
> > > > Jens
> > > > ___
> > > > Vserver mailing list
> > > > Vserver@list.linux-vserver.org
> > > > http://list.linux-vserver.org/mailman/listinfo/vserver
> > >
> 
> Hi!
> 
> I had an intense look at the installation since obviously something
> must have gone wrong there (as you pointed out, too). I checked for
> vprocunhide being in place and executed (which is the case) and then
> ran the testme.sh once more where I first got an error with chcontext
> in /usr/sbin/chcontext. There should be no such file since I erased
> those with rpm and then installed from source to
> /(etc,lib/util-verser,sbin). That drew my attention to the fact that
> obviously some files of the prior rpm installation remained on the
> system and I wondered whether that causes the problem (allthough I
> still wonder why it only happens with debian based vservers). After I
> deleted the redundant chcontext the testme.sh found no error at all.
> Then I deleted /usr/sbin/vserver presuming that /sbin/vserver should
> be used. However, the problem remained, the servers fail to boot while
> directories for their context are created under /var/run/vservers.rev
> and the run files do point to the respective files in
> /var/run/vservers as if the servers actually were running. Maybe he's
> looking for the save_ctxinfo in all the wrong places?
> I'm sure it's just some really stupid tweak I

[Vserver] "Abstract" (not FS based) UNIX sockets collision

2006-01-25 Thread Andreas Schultz 
Hi,

It seems that abstract UNIX sockets "leak" from a vserver. I'm trying to run
the same java app inside two vservers and only the first one started succeeds.

The critical piece from strace is:

20397 socket(PF_FILE, SOCK_STREAM, 0)   = 5
20397 setsockopt(5, SOL_SOCKET, SO_PASSCRED, [7738151124464566273], 4) = 0
20397 bind(5, {sa_family=AF_FILE, [EMAIL 
PROTECTED]/run/.php-java-bridge_socket}, 110) = -1 EADDRINUSE (Address already 
in use)

Looking at unix_bind() in net/unix/af_unix.c, it would seem that the socket
hashes are identical across all vservers and that no additional context check
is used. There is a context check in include/net/af_unix.h, but this
does not seem to be used when creating sockets from unix_bind().

Any ideas?

Regards
Andreas



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Re: [Vserver] I/O CFQ scheduler [scanned]

2006-01-25 Thread Veit Wahlich 
Am Dienstag, den 24.01.2006, 20:06 +0300 schrieb Vasily Tarasov:
> Can you tell me, please, can util-vserver-0.30.209 
> work
>  
> with I/O CFQ Scheduler already?

I did not know util-vserver {had|could have} any problems with that...
I am using the CFQ I/O elevator on most of my servers (with vserver guests),
without any problems until now...

> How?

Compile CFQ I/O scheduler support into the kernel and append the
following parameter to your kernel boot parameters:
elevator=cfq

Regards,
// Veit


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Re: [Vserver] vservers don't start after update to 2.01

2006-01-25 Thread Jens Holze 
2006/1/13, Jens Holze <[EMAIL PROTECTED]>:
> 2006/1/11, Herbert Poetzl <[EMAIL PROTECTED]>:
> > On Wed, Jan 11, 2006 at 04:03:58PM +0100, Jens Holze wrote:
> > > Hi!
> > >
> > > I updated VServer from 2.00 to 2.01 by patching a new 2.6.14.4-kernel
> > > and installing the utils (209) from self-build rpms on Fedora Core 4.
> >
> > maybe the installation of your 'self built' utils is a
> > little incomplete ... I'd try with the source tar, and
> > after a proper configuration (to get your pathes right)
> > do the 'make install' and 'make install-distribution'
>
> I erased the rpms and installed from source (with the prefix=/).
> Everything is in place now, save_ctxinfo in /lib/util-vserver/ .
>
> > > Everything worked prior to that but since then I can't manage to start
> > > any debian-based Vservers. I thought something with the kernel went
> > > wrong so I build it anew but that didn't solve anything.
> > > When trying to start a vserver I get:
> > >
> > > // RTNETLINK answers: File exists
> >
> > this means that the 'configured' IP(s) already exists,
> > maybe with a different netmask/prefix, check with
> > 'ip addr ls' and remove the 'offending' IP(s)
> >
>
> Yeah I know, this one is not the problem, I just took existing
> settings and made a new server from it hoping that would eliminate the
> save_ctxinfo problem...
>
> > > // save_ctxinfo: execv(): No such file or directory
> >
> > this very much looks like the save_ctxinfo is failing
> > possible reasons could be:
> >
> >  - /lib/util-vserver/save_ctxinfo (or wherever it is
> >on your distro) is not executable or missing
> >  - /etc/vservers/.defaults/run.rev is not pointing
> >to a valid directory to store the info
> >  - the directory /var/run/vservers.rev is not writeable
> >or does not exist
> >
>
> I thought so but: save_ctxinfo is at the exact location and
> executable... /run.rev is there and pointing to /var/run/vservers.rev
> which exists and is writeable (there are directories inside for the
> fedora vservers which are running!). It must be something special that
> is done in debian vservers which doesn't happen with fedora core
> vservers?!
> Also, I wonder where the vserver starting script looks for this file,
> is it possible that I have to edit any config file? I mean it's in the
> same directory so why doesn't he find it?
>
> > > // An error occured while executing the vserver startup sequence; when
> > > // there are no other messages, it is very likely that the init-script
> > > // (/etc/init.d/rc 3) failed.
> > > //
> > > // Common causes are:
> > > // * /etc/rc.d/rc on Fedora Core 1 and RH9 fails always; the 'apt-rpm' 
> > > build
> > > //   method knows how to deal with this, but on existing installations,
> > > //   appending 'true' to this file will help.
> > > //
> > > // Failed to start vserver 'debian_two'
> > >
> > > The common causes don't really help and I can't think of anything
> > > else. I even build an all new debian vserver but even this one doesn't
> > > boot. Other (Fedora-based) vservers do work perfectly. Any help would
> > > be greatly appreciated.
> >
> > yes, well, to explain all kinds of errors in a tool
> > of this complexity is almost impossible ...
>
> Of course it is, it's just that its obviously a different problem as
> far as I get it.
>
> Jens
> > HTH,
> > Herbert
> >
> > >
> > > Jens
> > > ___
> > > Vserver mailing list
> > > Vserver@list.linux-vserver.org
> > > http://list.linux-vserver.org/mailman/listinfo/vserver
> >

Hi!

I had an intense look at the installation since obviously something
must have gone wrong there (as you pointed out, too). I checked for
vprocunhide being in place and executed (which is the case) and then
ran the testme.sh once more where I first got an error with chcontext
in /usr/sbin/chcontext. There should be no such file since I erased
those with rpm and then installed from source to
/(etc,lib/util-verser,sbin). That drew my attention to the fact that
obviously some files of the prior rpm installation remained on the
system and I wondered whether that causes the problem (allthough I
still wonder why it only happens with debian based vservers). After I
deleted the redundant chcontext the testme.sh found no error at all.
Then I deleted /usr/sbin/vserver presuming that /sbin/vserver should
be used. However, the problem remained, the servers fail to boot while
directories for their context are created under /var/run/vservers.rev
and the run files do point to the respective files in
/var/run/vservers as if the servers actually were running. Maybe he's
looking for the save_ctxinfo in all the wrong places?
I'm sure it's just some really stupid tweak I simply couldn't think of
yet. Any other suggestions?

Thanks

Jens
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Re: [Vserver] patch-2.6.16-rc1-vs2.1.0.6.1 ok ;-)

2006-01-25 Thread Joel Soete 
> On Tue, Jan 24, 2006 at 09:19:33AM +0100, Joel Soete wrote:
> >
> > Hello Herbert,
> > [...]
> > > excellent, I would appreciate to get a posting similar to
> > > http://list.linux-vserver.org/archive/vserver/msg11977.html
> > >
> > Here there are:
> > Linux-VServer Test [V0.14] Copyright (C) 2003-2005 H.Poetzl
> > chcontext is working.
> > chbind is working.
> > Linux 2.6.16-rc1-vs2.1.0.6.1-pa2-d32up parisc/0.30.209/0.30.209 [Ea] (0)
> > VCI:  0002:0001 263 03000116
> > ---
> > [000]# succeeded.
> > [001]# succeeded.
> > [011]# succeeded.
> > [031]# succeeded.
> > [101]# succeeded.
> > [102]# succeeded.
> > [201]# succeeded.
> > [202]# succeeded.
> > <>
> > well even -v option didn't give me more, though?
>
> but the -L option will :)
>
oops ?

so here are the additional success ;-)

---
[L01]# succeeded.
[D01]# succeeded.
[L02]# succeeded.
[D02]# succeeded.
[L03]# succeeded.
[D03]# succeeded.
[L11]# succeeded.
[D11]# succeeded.
[L12]# succeeded.
[D12]# succeeded.
[L21]# succeeded.
[D21]# succeeded.
[L22]# succeeded.
[D22]# succeeded.
[L31]# succeeded.
[D31]# succeeded.

Tx,
Joel


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