[Users] OpenVZ on Fedora Core 5 (networking question)
Aleksandar
amour at rousse.org
Tue Apr 25 13:25:58 EDT 2006
Hello Kiril,
just to mention that I've installed the vz*-3.0.0-7 packages and created
the vps with them. I couldn't start the yum update process so I tried to
get some help on irc. Someone pointed me to the wrong limits which were
for x86_64, I've corrected them and since then I was able to start
pretty much everything. Since the *-3.0.0-8 packages were released I've
updated to them and I used them to write this email.
regards,
Aleksandar
P.S. Don't forget to scroll down :-)
Kirill Korotaev wrote:
> Aleksandr,
>
> Can you please, provide the following information:
> 1. kernel version you use:
> # uname -a
>
Linux somehost.somedomain.net 2.6.16-1.2080_FC5.026test007 #1 Mon Apr 3
18:44:34 MSD 2006 i686 i686 i386 GNU/Linux
> 2. have you started vz service before VPS start?
> # /etc/init.d/vz restart
>
# service vz status
OpenVZ is running...
#service vz restart
Stopping OpenVZ: [OK]
Starting OpenVZ: [OK]
Bringing up interface venet0: [OK]
Configuring interface venet0: net.ipv4.conf.venet0.send_redirects = 0 [OK]
I've restarted it a lot of times
> 3. have you enabled ip forwarding?
> # cat /proc/sys/net/ipv4/ip_forward
>
# cat /proc/sys/net/ipv4/ip_forward
1
I actually don't need forwarding for the moment, because I want to be
able to ssh to the vps from the hardware node.
> 4. which template have you used for your VPS?
> # cat /etc/sysconfig/vz-scripts/101.conf
>
The fedora 5 template and I've updated it with yum through internet, I
didn't download the tarball.
=== BEGIN 101.conf ===
VERSION="2"
ONBOOT="no"
CLASSID="2"
# UBC parameters (in form of barrier:limit)
# Primary parameters
AVNUMPROC="40:40"
NUMPROC="65:65"
NUMTCPSOCK="80:80"
NUMOTHERSOCK="80:80"
VMGUARPAGES="6144:2147483647"
# Secondary parameters
KMEMSIZE="3578265:3816816"
TCPSNDBUF="319488:524288"
TCPRCVBUF="319488:524288"
OTHERSOCKBUF="132096:336896"
DGRAMRCVBUF="132096:132096"
OOMGUARPAGES="6144:2147483647"
# Auxiliary parameters
LOCKEDPAGES="32:32"
SHMPAGES="8192:8192"
PRIVVMPAGES="22528:24576"
NUMFILE="1280:1280"
NUMFLOCK="100:110"
NUMPTY="16:16"
NUMSIGINFO="256:256"
DCACHESIZE="1048576:1097728"
PHYSPAGES="0:2147483647"
NUMIPTENT="128:128"
# Disk quota parameters (in form of softlimit:hardlimit)
DISKSPACE="1048576:1153434"
DISKINODES="200000:220000"
QUOTATIME="0"
# CPU fair sheduler parameter
CPUUNITS="1000"
OFFLINE_MANAGEMENT="yes"
VE_ROOT="/vz/root/$VEID"
VE_PRIVATE="/vz/private/$VEID"
OSTEMPLATE="fedora-core-5-i386-default"
ORIGIN_SAMPLE="vps.basic"
HOSTNAME="www.rousse.org"
IP_ADDRESS="10.0.0.1"
NAMESERVER="XX.YY.154.19"
=== END 101.conf ===
> 5. from host and VPS:
> # ip a l
> # ip r l
>
Host:
# ip a l
2: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:50:bf:d1:f5:84 brd ff:ff:ff:ff:ff:ff
inet XX.YY.154.19/27 brd XX.YY.154.31 scope global eth0
inet XX.YY.154.28/27 brd XX.YY.154.31 scope global secondary eth0:0
inet6 fe80::250:bfff:fed1:f584/64 scope link
valid_lft forever preferred_lft forever
6: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
5: venet0: <BROADCAST,POINTOPOINT,NOARP,UP> mtu 1500 qdisc noqueue
link/void
# ip r l
XX.YY.154.0/27 dev eth0 proto kernel scope link src XX.YY.154.19
169.254.0.0/16 dev eth0 scope link
default via XX.YY.154.1 dev eth0
Guest:
# vzctl start 101
Starting VPS ...
VPS is mounted
Adding IP address(es): 10.0.0.1
/bin/cp: preserving times for `/etc/sysconfig/network.2701': Function
not implemented
ERROR: Can't copy file /etc/sysconfig/network
Setting CPU units: 1000
Set hostname: www.rousse.org
/bin/cp: preserving times for `/etc/hosts.2710': Function not implemented
ERROR: Can't copy file /etc/hosts
VPS start in progress...
# vzctl exec 101 ip a l
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
3: venet0: <BROADCAST,POINTOPOINT,NOARP,UP> mtu 1500 qdisc noqueue
link/void
inet 127.0.0.1/32 scope host venet0
# vzctl exec 101 ip r l
191.255.255.0/24 dev venet0 scope host
169.254.0.0/16 dev venet0 scope link
default via 191.255.255.1 dev venet0
> Thanks,
> Kirill
>
>> Hello,
>>
>> after installing and successfully running one OpenVZ VPS I wasn't
>> able to ping or ssh to the VPS. After analyzing a little bit I came
>> to the following:
>> 1) host venet0 isn't configured even after vzctl start 101
>> 2) venet0 in the guest (vps) is set to 127.0.0.1
>>
>> Is this normal ? I've assigned 10.0.0.1 to the VPS and if I manually
>> configure host's venet0 to 10.0.0.2 and guest's venet0 to 10.0.0.1
>> (through vzctl exec) I'm being able to ping and ssh to the vps.
>>
>> Also, could someone point me to some detailed information about the
>> OpenVZ networking concept ? Is it like vmware (separate interfaces) ?
>> Is it like jail (ethernet aliases) ? The only thing I found about
>> networking was "vzctl set XYZ --ipadd A.B.C.D" :)
>>
>> thanks,
>> Aleksandar
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at openvz.org
>> https://openvz.org/mailman/listinfo/users
>>
>
>
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