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Questions tagged [virtual-ip]

53 questions
6
votes
1 answer

2 node cluster (active-passive) with Windows Server 2016

I'd like to create a 2 node cluster with 2 servers with Windows Server 2016 standard. My cluster should be in active-passive configuration without shared storage (SAN, iSCSI, etc.) without active directory I'd like to get a virtual IP passed…
Danilo7
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6
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2 answers

UCARP: prevent the original master from taking over the VIP when it comes back after failure?

Keepalived can do this by combining the nopreempt option and the BACKUP state on the both nodes: Prevent VRRP Master from becoming Master once it has failed Prevent master to fall back to master after failure How about the UCARP? Name :…
quanta
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3
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1 answer

(Pacemaker) Nginx uses primary IP address instead of virtual IP to communicate with web servers

I have set up a two-node cluster (active/passive) with Corosync/Pacemaker and nginx as a reverse proxy. OS is RHEL7 and the machine has only one network interface at the moment. I configured two resources: cluster-vip for the shared virtual…
Litame
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3
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1 answer

Virtual IP Failover when machine is overloaded

We have been using keepalived in combination with a virtual IP address for two years now. In the rare case that a machine crashes this works very well. But when there are issues on the box itself we have seen a couple of cases where no failover took…
Marco
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2
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0 answers

Not able to ping VM and/or mount NFS after changing IP via POSTROUTING

Imagine the following setup. I have a machine A which exports a network share and is reachable under, say 1.1.1.1. A second B machine with an IP, say 2.2.2.2, is mounting that share, everything's fine. Now I'm trying to setup some kind of blue/green…
xxx
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2
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1 answer

Load balancing multiple NICs on single machine presenting a virtual IP

I've inherited a network setup, where the NFS/Samba linux RAID server ("Ubuntu 14.04.5 LTS") is serving everything over one NIC. As a result, the 1Gb network bandwidth is saturated. Unfortunately, the entire subnet attaches to this server via it's…
BurningKrome
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How to manage virtual ip addresses in RHEL 7

We currently have an alias assigned to our NIC for the purposes of managing a HA Proxy pair. # cat…
Josh Smeaton
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2 answers

How to point multiple top domains to IP of another top domain?

Lets say I have top domain domain-X.com with DNS A record pointing it to IP 1.2.3.4 then I have domains, which I might not have control over, they belong to customers, which owns them and may have different providers etc. domain-A.com,…
urza.cc
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2
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1 answer

Cannot get Web Sockets to work with virtual IP redirection

I can't get Web Sockets to work on my site when I access it via its virtual IP. If I use it's real (intranet) IP, everything works perfectly. If I use the virtual IP, I get this on Google Chrome console: SignalR: Connecting to websocket endpoint…
Luis Ferrao
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1 answer

IP failover with 2 nodes on different subnet: cannot ping virtual IP from second node?

I'm going to setup redundant failover Redmine: another instance was installed on the second server without problem MySQL (running on the same machine with Redmine) was configured as master-master replication Because they are in different subnet…
quanta
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1
vote
1 answer

Multiple floating IPs

I am configuring Squid with High Availability. I want the setup with below conditions Two squid proxy servers (siblings) with one IP address each Both the servers in active passive HA cluster with floating IP More than one floating IP assigned to…
Arun Krishnan
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1
vote
1 answer

Cannot reach keepalived VIP from other machines in the same network

I am working in bare metal environment trying to setup HA loadbalancing using keepalived. When I try to ping the VIP which I given in keepalived config file from other machines in the same network its not reachable, but when I stop keepalived in one…
sureshelavazhathi
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1 answer

how to make a Virtual ip on a 2 nodes cluster

i have a specific question, her's my situation : 1- 2 vms with drbd - pacemaker - corosync - NFs - here's my crm configuration : node san1 node san2 primitive drbd_res1 ocf:linbit:drbd \ params drbd_resource="res1" \ op monitor…
chubby.skelton
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1 answer

How to pass all traffic through virtual ip on linux

I have an Ethernet card on CentOS server. It has been configured: eth1: mtu 1500 qdisc mq state UP qlen 1000 link/ether 40:f2:e9:9b:b7:bb brd ff:ff:ff:ff:ff:ff inet 192.168.1.1/24 brd 10.54.19.255 scope…
LinhTran
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1 answer

keepalived failover virtual ip parameters

I have two servers (A-master and B-backup) with one virtual ip. I need to assign the virtual ip to server B in case server A fails. For this I'm trying to configure keepalived. server A virtual ip is configured on eth0:1 server B virtual ip is…
ivcode
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