No network after installing NethServer on World4you VPS

Support
,
1

OK, I found a vServer on world4you.com and try to install Nethserver on Centos7. I think there shoud be a howto?

2

When I try to install nethserver on the vServer I just can go to this point:

nethserver-install

 sssd-ldap.x86_64 0:1.16.4-21.el7_7.3
  sssd-proxy.x86_64 0:1.16.4-21.el7_7.3
  tcl.x86_64 1:8.5.13-8.el7
  tdb-tools.x86_64 0:1.3.16-1.el7
  tokyocabinet.x86_64 0:1.4.48-3.el7
  trousers.x86_64 0:0.3.14-2.el7
  udisks2.x86_64 0:2.7.3-9.el7
  udisks2-iscsi.x86_64 0:2.7.3-9.el7
  udisks2-lvm2.x86_64 0:2.7.3-9.el7
  volume_key-libs.x86_64 0:0.3.9-9.el7
  wpa_supplicant.x86_64 1:2.6-12.el7
  xfsprogs.x86_64 0:4.5.0-20.el7
  yajl.x86_64 0:2.0.4-4.el7
  yum-cron.noarch 0:3.4.3-163.el7.centos
  yum-plugin-changelog.noarch 0:1.1.31-52.el7

Complete!

Configuring system, please wait...

Created symlink from /etc/systemd/system/multi-user.target.wants/nethserver-config-network.service to /usr/lib/systemd/system/nethserver-config-network.service.

tail -f /var/log/messages

Mar 21 18:22:21 gcd5g9 shorewall: Compiling /etc/shorewall/stoppedrules...
Mar 21 18:22:21 gcd5g9 shorewall: Shorewall configuration compiled to /var/lib/shorewall/.start
Mar 21 18:22:21 gcd5g9 shorewall: Starting Shorewall....
Mar 21 18:22:21 gcd5g9 shorewall: Initializing...
Mar 21 18:22:21 gcd5g9 shorewall: Processing /etc/shorewall/init ...
Mar 21 18:22:21 gcd5g9 shorewall: Processing /etc/shorewall/tcclear ...
Mar 21 18:22:21 gcd5g9 shorewall: Setting up Route Filtering...
Mar 21 18:22:21 gcd5g9 shorewall: Cannot open "/proc/sys/net/ipv4/route/flush": No such file or directory
Mar 21 18:22:21 gcd5g9 shorewall: Setting up Martian Logging...
Mar 21 18:22:21 gcd5g9 shorewall: Setting up Proxy ARP...
Mar 21 18:22:21 gcd5g9 shorewall: Setting up Traffic Control...
Mar 21 18:22:21 gcd5g9 shorewall: Processing /etc/shorewall/tcstart ...
Mar 21 18:22:21 gcd5g9 shorewall: FireQOS 3.1.5
Mar 21 18:22:21 gcd5g9 shorewall: (C) 2013-2014 Costa Tsaousis, GPL
Mar 21 18:22:21 gcd5g9 shorewall: Clearing all QoS on all interfaces...
Mar 21 18:22:21 gcd5g9 shorewall: venet0: cleared traffic control
Mar 21 18:22:21 gcd5g9 shorewall: - removed all IFB devices
Mar 21 18:22:21 gcd5g9 FireQOS[3923]: Cleared all QOS on all interfaces
Mar 21 18:22:21 gcd5g9 shorewall: FireQOS 3.1.5
Mar 21 18:22:21 gcd5g9 shorewall: (C) 2013-2014 Costa Tsaousis, GPL
Mar 21 18:22:21 gcd5g9 shorewall: Traffic is classified:
Mar 21 18:22:21 gcd5g9 shorewall: - on 0 interfaces
Mar 21 18:22:21 gcd5g9 shorewall: - to 0 classes
Mar 21 18:22:21 gcd5g9 shorewall: - by 0 FireQOS matches
Mar 21 18:22:21 gcd5g9 shorewall: 0 TC commands executed
Mar 21 18:22:21 gcd5g9 shorewall: All Done! Enjoy...
Mar 21 18:22:21 gcd5g9 FireQOS[3948]: QoS applied ok (0 tc commands applied)
Mar 21 18:22:21 gcd5g9 shorewall: bye...
Mar 21 18:22:21 gcd5g9 shorewall: Preparing iptables-restore input...
Mar 21 18:22:21 gcd5g9 shorewall: Running /sbin/iptables-restore --wait 60...

After this I lose my ssh connection to the vServer and I dont know how to go further…

3

Do you have VNC access to the VPS in some way? It could be that you ip address has changed in some way during the install… If you could check IP settings it might give a clue.

4

No, just ssh.

Edit: I just have this when I ssh to the vServer:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default
    link/void
    inet 127.0.0.1/32 scope host venet0
       valid_lft forever preferred_lft forever
    inet xxx.xxx.xxx.xxx/24 brd xxx.xxx.xxx.xxx scope global venet0:0
       valid_lft forever preferred_lft forever
5

Could you connect again after you lost connection during Neth install or did you setup a new centos image?
Were the network settings like that before you installed Nethserver?

Maybe wrong Neth network settings?

db networks show

BTW, World4you may support VNC too, at least it’s mentioned in their FAQ:

6

No, I was not able to reconnect…

In the meantime I saw this but I cannot find any further Infos abt how to use VNC…

7

Can you reboot/restart your server from world4you admin interface after the process hang?

Maybe try this before Neth install to make Neth configure the right interface:

ip link set dev venet0:0 alias eth0

or

ip link set dev venet0 alias eth0

…and deactivate changes to venet0 before Neth install:

chattr +i /etc/sysconfig/network-scripts/ifcfg-venet0

BTW, I moved the posts about VPS install to a new topic…

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