How create an interfaces file

[devmapluz]

Hi
I have a VPS Proxmox VE 2.3 on debian 8 with my dedicated kimsufi server ovh.
After an ovh problem,i reboot the server and i can not access to my web applications on my ipfailover with the browser web.
I can not configure my /etc/network/interfaces file

Her is an exemple :

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0

auto eth0
iface eth0 inet static
   address x.y.z.t
   netmask 255.255.255.0
   broadcast x.y.t.255
   gateway x.y.t.254

auto eth0:0
iface eth0:0 inet static
   address a.b.c.d
   netmask 255.255.255.255
   broadcast a.b.c.d
   post-up route add x.y.z.254 dev eth0
   post-up route add default gw x.y.z.254
   pre-down route del x.y.z.254 dev eth0
   pre-down route del default gw x.y.z.254

# IP_SERVER = x.y.z.t
# IP_FAILOVER = a.b.c.d

When i restart my network, if i tape a.b.c.d on my browser, and it go to the proxmox interfaces a.b.c.d:8006 and not on my ipfailover
Have you an idea?
thnaks

 

[wylde]

#1 proxmox 2.3 is incredibly old
#2 where is your bridge interface?
#3 shouldn't you be applying your post-up/down routes on eth0?

 

[devmapluz]

1 :
I'm sorry but I have no time to change the version, it works depyis 10 years
2 :
what do you mean by bridge interface?
3 : yes perhaps, i try

 

[Chris]

We strongly recommend to update to the latest version of Proxmox VE as your version is no longer supported!
To update your /etc/network/interfaces under Proxmox VE you have to create a /etc/network/interfaces.new which will overwrite the /etc/network/interfaces on reboot. For details see here https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_network_configuration