Questions tagged [keepalived]

an open source daemon that implements the VRRP standard.

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Something like VRRP/keepalived without MAC address impact? (RHEL 8) [closed]

I am looking to set up a cluster (of two systems) with a VIP, just what keepalived would do. In a different context, I already have keepalived working well. However, our network team told me not to ...
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setting up keepalived that contains vpn servers

I was wondering if i can create two VPN servers with their private IPs, then setting up a keepalived master and backup, adding floating ip to the keepalived server so that the user will only connect ...
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Keepalived and VIP MAC Address

I am using keepalived and ipvsadm installed on Redhat 7.4 and I have an issue. My virtual IPs don't have MAC address associated. The issue that I have is that sometimes from the firewall the vip is ...
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Keepalived without peer IP on VIP interface

I am facing a situation where I have a single IP to connect to another network, and I am wondering if I can use keepalived to set the VIP on an interface, using another unterface with IP on another ...
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keepalived delay before bringing ip up

Is it possible to configure a delay before bringing the virtual IP up in keepalived? Background: I have multiple Master/Master MySQL Setups. Only one Master is used at time. Keepalived is used for VIP ...
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Is there a way to keep a service up at both MASTER and SLAVE with Keepalived?

I'm using a Red Hat 6.6 and my keepalived version is v1.2.7. I have configured two servers with keepalived and the failover is working as expected, nothing much about that. But I do have a service ...
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How to shutdown keepalived without releasing the VIP

Usually it is a good thing that when keepalived shuts down, it releases the virtual IP address (VIP) via VRRP and removes the address from the local interface so that other instances can take it over. ...
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Keepalived not sending or replying to ARP requests Ubuntu 20.04 Server

I am not able to ping the virtual IP of keepalived. When I checked further, I found that keepalived is not sending ARP requests or reply. None of the hosts in same network received gratuitos APR ...
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Keepalived increasing slave/master promotion interval/timeout (advert_int) not working

I am trying to increase the default interval (advert_int) which triggers a slave to master promotion which seems to be 1 second by setting it on keepalived.conf to 3 seconds: vrrp_instance VI_1 { ...
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high availability with keepalived and nginx on ubuntu

I have two identical linux servers serving the same content through nginx. I want to have high availability through failover with keepalived, that is, server number 1 always serves the content of ...
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keepalived - “notifiy_master”/ “notify_backup” does not start/stop application

I want to start/stop a freeradius depending on the master (start) or the backup (stop) state of the keepalived instance. The freeradius is listening for accounting messages on the shared virtual ip. I ...
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Keepalived cannot find ip for docker interface

We have a docker-compose based application and running in two servers and can access with server-ip:port. To integrate Keepalived floating IP for this service, I tried adding docker service running ...
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Is it possible to manage mounting of a DRBD device using keepalived?

Back in the day (2006/2007) I used heartbeat to manage a floating IP and mounting a DRBD device on one of two mostly identical computers. Now I want to finally replace those old Linux systems with ...
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LVS not working

vip:10.110.23.239 real-server:10.110.23.141 lvs:10.110.23.134 I have deployed a spring-boot application on real-server(10.110.23.141) with port 18787, it can be accessed successfully on any server. ...
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Wireguard don't work with VRRP

I try to use Wireguard on a firewall with VRRP (based on Keepalived). The firewall blocks all the communications except to the VRRP address on port 51820 and the valid established connections. ...
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setting keepalived for HA

I followed this blog to setup keepalived service. This question is in continuation with this one. But whenever i'm trying to ping the Virtual IP directly from host it always says host unreachable. ...
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How to troubleshoot Virtual IP not switching over to the MAC address of failover server

A Virtual IP was set up for hosts db1 and db2 to share. They are both running RHEL 8. These hosts are configured with keepalived using VRRP to failover the virtual IP address from the master (db1) to ...
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CentOS7 keepalived not failing back during vmware snapshot with longer than average unstun time

OS: CentOS7 Keepalived version 1.3.5 (Release 16.el7) Yum available version from repo: 1.3.5 Release 19.el7) I have experienced this issue accross multiple CentOS7 VMs with the same keepalived version....
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How to allow external accession from Keepalived virtual ip with HAproxy?

I have two haproxy servers running in balancer mode. Both of servers run with private ips 10.9.1.1, 10.9.1.2 and virtual ip from KeepAlived is 10.9.1.100 Then, I'd like to allow external users to ...
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Upto what number of nodes can keepalived / CTDB HA softwares scale for IP failovers?

We are trying to build a high availability cluster with a support to highly scalable architecture. In an effort we plan to use - DNS server to distribute client requests across N nodes. All active ...
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Need Restart OS Level After change virtual ip on keepalived

I am using keepalived for make HA current maxscale and using virtual IP on keepalived. If I change virtual IP on keepalived I must restart OS on VM or restart keepalived service only? I am still ...
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How can I Configure Keepalived for MultiNetwork Servers?

I am going to configure two servers for IPFailover with Keepalived, but each server has two network cables, so they are double networked. Should I configure Keepalived as it is configured on single ...
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Keepalived VIP not getting updated MAC after failover

I've got keepalived set up on 2 RHEL7.8 VMs to provide HA for a shared VIP. The VIP works and properly switches to each server when expected. I experience two issues related to the MAC not getting ...
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Can I have identical config on all Keepalived nodes?

While trying to configure an experimental Kubernetes cluster (in a few VMs on my laptop) as "high available" I found the advise to do this using the combination of keepalived and haproxy ( ...
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IPVS transmitting packets to incorrect backends

We are using ipvs for L4 loadbalancing which transmits packets to L7 backends on ipip tunnel mode. There are three ipvs systems configured with source hashing for persistence. Sometimes, ipvs is ...
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how to health check haproxy backend with different IP?

I am running 2 haproxy servers that keep state of each other with keepalived to be fault tolerant. These haproxies have many frontends and backends, in order to avoid port exhaustion when forwarding ...
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227 views

Haproxy service won’t start when keepalived service is running

I am trying to configure haproxy with keepalived but if I start keepalived service first, haproxy fails to start. When keepalived service is stopped, haproxy starts without any problems. I get the ...
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Keepalived same host for real server and load balancer

I've came across following note (keepalived - Virtual is not routing my requests to real servers): Accessing the virtual IP from the load balancers or one of the real servers is not supported. ...
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How to configure keepalived, so that choosing master is not static?

I have already managed to configure a setup where I have a master and a backup machine, so when the master fails the backup goes back up. And when the master starts again, it takes the master position ...
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1answer
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Proxy-Arp setup with Keepalived

I currently am trying to create a setup with N servers where 1 server is the master for a Virtual IP, and the (N-1) servers act as backups, presumably controlled by keepalived. However, one issue I ...
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2 Node — KeepaliveD — network break

I have a two node ( VMs ) setup running keepaliveD. The problem is that due to only ability of managing the VMs from command line, I can't demonstrate how the network break between both node-A and ...
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dual ISP firewall cluster in linux

For the past couple of weeks i have been trying to figure out how to make firewall cluster, each having different ISP. I have found few guides on how to do it with one ISP using technologies like ...
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Using floating IP for load-balanding OpenShift/OKD control plane

On-prem OpenShift installation requires load-balancer over the control plane, and does so already for installation. Now this cluster will be local, with the control plane only accessible inside ...
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active/active load balancer in linux? [closed]

we have 2 haproxy servers in an active passive (keepalived) setup forwarding to a couple apache backends. The load has increased and I'm searching for an active active load balancer solution. Is there ...
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Get status of the master VRRP router Keepalived

I have two Linux routers (RHEL 7) participating in a redundant VRRP configuration provided by the keepalived package version 2.0.20. These two routers used to be running RHEL 6 and keepalived version ...
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Keepalived: Invalid master transition

We have a two machine keepalived setup where both machines are configured in the same way. vrrp_instance RP_VI_1 { interface eth3 state BACKUP ...
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Does something remember network state at Linux reboot?

I have two systems using keepalived with scripts which run at all state transitions (backup, fault, master). At bootup these scripts document the network configuration (ip addr, ip ro) when they are ...
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Keepalived configuration for a budget cluster of 2 web server nodes on Linode

I am on a low budget - so I am running just 2 identical Linodes (Ubuntu 18.x). I don't plan to use Nodebalancer, since I need only one server to be up at a time. I have been able to successfully ...
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HAPROXY wont start even with net.ipv4.ip_nonlocal_bind = 1

OK. This is a very old problem but with a relatively new OS. I'm running CentOS 6.10 on one server with KeepAliveD and HAPROXY and the same on two other CentOS 7.x servers. I've created an HA ...
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Keepalived in a Tinc VPN mesh, can't ping the VIP after an election

Description Configuration I have 3 nodes, connected together using Tinc VPN, where I'd like to install HAproxy and have a VIP so that HAproxy is itself in a High Availability mode. Here are the ...
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Windows implementation of keepalivd?

Me and my team have been trying to find a solution to the following setup: Two physical/vm machines with their own memory and network devices. One will act as master the other slave. A virtual IP ...
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Keepalived doesn't gain quorum when tracked process comes up

I'm using keepalived v2.0.19 on CentOS7 with a single vrrp instance tracking haproxy process presence. Unfortunately the vrrp instance never leaves the FAULT state after a restart of haproxy process ...
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HAProxy as TCP load balancer (SSL passthrough) not working?

i am having some trouble setting up HAProxy as a TCP load balancer (layer 4) and i would like to have your advice about it. i've been following many guides on the web and i came up with this ...
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340 views

monitoring keeplived virtual IP with snmp

I am trying to monitor keepalived VIP with snmp. I got keepalived running on two servers. We had the situation that suddenly the VIP was on both servers which was a big problem, since these servers ...
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monitoring keepalived with snmp

I am trying to monitor keepalived with snmp. Here are the relevant part of the config: /etc/snmp/snmp.conf # As the snmp packages come without MIB files due to license reasons, loading # of MIBs is ...
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linux gateway using keepalived

pic Dear, I'm using 2 linux as my gateway of a subnet. Here I want to using keepalived service, But ip routing looked strange. From the router it couldn't find a route to the subnet. Tracerout looked ...
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Is it possible to establish two simultaneous keepalived VIPs to allow HAProxy load balanced HA via DNS round robin?

I'm currently investigating the use of HAProxy as a Load Balancer. I've found that the recommended configuration for HA of the HAProxy itself (not the backends) involves using keepalived to establish ...
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487 views

syslog udp load balancing and failover with keepalived

I have a simple two host graylog cluster for which i need to load balance udp syslog traffic, I'm using keepalived, floating ip and load balancing work perfectly, but it still directs traffic to all ...
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Keepalived not executing scripts

I have a few state change scripts executed and they seem to be called on when I view the service status but they never run. If I execute the script manually it works fine. Any thoughts? Using Deb9.
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Virtual Loadbalancer based on Virtual IP

I need to setup K8S in HA Mode on hosted Baremetal. If have a vSwitch Network where I can easily assign internal IPs. Is there a Virtual Linuxbased loadbalancer (Active/Passiv) software that allows me ...

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