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Questions tagged [virtual-ip]

53 questions
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can you give me feedback on an HA architecture using linux-ha and pacemaker?

I am trying to come up with an architecture for achieving HA on one of our services (in-house service, single tcp connection for all requests). Just started reading on linux-ha and pacemaker, and i'd like to know if the following approach makes any…
Shlomi
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Issue with setting up Telnet Management on Open VPN Server

When I enable telnet on openVPN (windows) using this parameter management localhost 25333, I am not able to access the clients through their virtual IPs anymore. At the same time, when I disable this parameter management localhost 25333 in server…
theGeekster
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Remotely configure OpenVPN custom client certificates and static Virtual IP

On our current basic OpenVPN (on Windows) setup, we are using common client certificates for all clients. In order to introduce some kind of security, what are the possible measures I can make ? Alongside the following option ? Can I remotely…
theGeekster
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Unable to connect to failover cluster

I have a 2 node failover cluster running on Windows 2008 R2. The cluster is functioning and I can failover services between the two nodes. All was working fine last week but now nothing can connect to the cluster unless it is on the same subnet as…
ts404
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keepalived doesn't listen on virtual IP

I'm learning to use keepalived; for now within a single machine - just to make sure the forwarding works. I've started a mock webserver listening on 192.168.56.200:8080. It just replies with the hostname. $ curl…
jkff
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Virtual IP failover on windows 7

i would like to find out how to set up virtual IP failover on windows 7. There are many online guides on linux heartbeat and pacemaker but i need configuration guides on how to set up virtual IP failover in windows 7. My understanding of virtual IP…
Wayne
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How do I configure a virtual IP interface on RHEL 4 for HA failover

I have two servers, each with a physical IP address on a physical network interface: Server A: 192.168.0.1 (eth0) - PRIMARY Server B: 192.168.0.2 (eth0) - BACKUP I want to run an application on server A as primary, and the same application on…
BG100
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Virtual IP or Load balancing for a http/ mysql cluster

First of all i have to say i'm very very newbie as sysadmin. I'm trying to do someone else's work, and i have almost 0 experience in clustering / load balancing and related stuff. This is the situation. I have 4 phisical servers. The wanted…
n0cturnal
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Cannot access LAN virtual IP from WAN using iptables NAT

Here's the setup: 2 servers running CentOS 5.6 (hostnames = "master1" and "master2") "master1" LAN IP is 10.224.45.130 and WAN IP is 184.107.x.1 "master2" LAN IP is 10.224.45.131 and WAN IP is 184.107.x.2 Apache + Heartbeat installed on both, with…
Sarah Ryan
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Virtual IP in pacemaker cluster not pinging

I have two Linux rhel8 servers with pacemaker/corosync/pcsd installed. I've used the ocf:heartbeat:IPaddr2 resource to create a virtual IP for the cluster. I have a similar setup on a few older clusters and it works fine but the ones I'm setting up…
Karanpreet Singh
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How to configure Keepalived Virtual IP?

I've been researching about Keepalived Virtual IP to make ProxySQL/MaxScale highly available and came across the concept of Virtual IP. All the articles that I've read just mentions a random Virtual IP directly but in no place I was able to find out…
Nandni
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What is the difference between the private addresses on eth0 and eth1 on Digital Ocean?

Here is the output of command ip a on my Digital Ocean server: root@ubuntu-s-1vcpu-1gb-blr1-01:~# ip a 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd…
Himanshuman
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pacemaker - what's wrong with ipsrcaddr?

I want to implement "floating" IP between two nodes using pcs+corosync+pacemaker. I've read dozens of howtos and ClusterLabs documentation, but it seems I've done something wrong. Help me please. I want a following thing - floating IP and its route…
ZZ Wave
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keepalived(or another solutions) between 2 interfaces one server

community. Could you help me with the next question? I'll have a server Linux with 2 NIC in the same network ens33 192.168.23.2 ens34 192.168.23.3 and plugin in different switches: I want to use Virtual IP (Floating IP) for example…
Vasia Pupkarev
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How do Virtual IPs allow fast switching?

I am designing a simple fail over system with just a primary and standby server. The main one will be in our office, while the standby will be on the cloud. I was reading about virtual IPs and how they provide 'failover' typically for load…
user1034912
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