Posts by stan92

Ok thanks.. didn't know.

Hi,
I've just switched the network cards on some of my VPS from Vlan100Mbps to a Vlan 1Gbps.
(I removed the 100Mbps card and added the new one, reboot the server)

But when I try to ping another VPS (that still use the 100mbps netword card), I get an error "a destination host unreachable"
The VPS runs on Ubuntu 20.04 and use Netplan.
Any help (or Guide)?

I finally found the solution after reading some posts on the forum

Thanks voja and H6G

If that can help.
First of all, (I didn't know) for using the API, I had to activate it...and generate password.


I update my keepalived.conf like this

For the master

global_defs {}
vrrp_script chk_api { script "/bin/systemctl status my-service.service"
 interval 2
}
vrrp_instance VI_1 {    state MASTER
    interface eth0
    virtual_router_id 101
    priority 101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        xx.xx.xx.xx
    }
    track_script {
       chk_api
    }
    notify_fault "/etc/keepalived/failover.sh"
}

For the slave

global_defs {
}
vrrp_script chk_api {
 script "/bin/systemctl status my-service.service"
 interval 2
}
vrrp_instance VI_1 {    state BACKUP
    interface eth0
    virtual_router_id 101
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        xx.xx.xx.xx
    }
    track_script {
       chk_api
    }
    notify_fault "/etc/keepalived/failover.sh"
}

And my failover.sh script looks like this

#!/usr/bin/env bash
CURL_BODY='<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://enduser.service.web.vcp.netcup.de/"><SOAP-ENV:Body><ns1:changeIPRouting><loginName>LOGIN_NAME</loginName><password>PASSWIRD</password><routedIP>FAILOVERIP</routedIP><routedMask>32</routedMask> <destinationVserverName>SERVER_NAME</destinationVserverName><destinationInterfaceMAC>SERVER_NAME_MAC_ADDR</destinationInterfaceMAC></ns1:changeIPRouting></SOAP-ENV:Body></SOAP-ENV:Envelope>'
CURL_OUTPUT=$(curl -s -H "Content-Type: text/xml; charset=utf-8" -H "SOAPAction:" -d "$CURL_BODY" -X POST https://www.servercontrolpanel.de:443/WSEndUser?xsd=1)
echo "Failover IP basculee " | mail -s "Basculement IP" stan@email.com

I have to write a better a script especially for handling the response of the API.

Quote from H6G

Netcup has an API you need to inform about the VPS being down, then the Failover IP will switch to the other VPS.

You can find a (German) documentation here: https://www.netcup-wiki.de/wik…ebservice#changeIPRouting

I thank you... Does it mean I have to create a kind a daemon that checks if the VPS is down, and if it is, invoke the changeIPRouting method?

Hi,

I am running a couple of VPS at netcup and try to add a failover Ip support on 2 VPS.

Currently, all my VPS are under Ubuntu 18.04

I installed keepalived and configured the netplan config file by adding my Failover IP on both VPS.

I expected when I shutdown my master VPS, the Failover IP automatically switches to the the slave VPS but it's not the case..

It only works if I assign the Failover IP using the SCP.

Any help?

Hi,
Just get a VPS at netcup..and I can't figure out how to install Ubuntu
From the Control Panel Server -> Media -> Images, I select Ubuntu 18.04 and get a green progress bar 2/4
Is there a additional step? (it seems it's blocked at 2/4)

Regard