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Questions tagged [virtual-ip]

The tag has no usage guidance.

2
votes
0answers
33 views

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 ...
0
votes
1answer
80 views

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, ...
0
votes
0answers
26 views

Virtual IP between server behind NAT and server with network directly

I have two VMs and I need make Virtual IP between these servers. But first VMs behind NAT and second has IP directly. Can I do this with keepalived? But I coudn't find any information how I can do ...
0
votes
1answer
35 views

Ip and secondary ip sometimes doesn't repond to ping

In order to have a virtual ip, I sometimes add another IP for my interface enp2s0f0 using # ifconfig enp2s0f0:1 192.168.201.33 up I also send a gratitus arp in order to publish the new ip of the ...
0
votes
0answers
687 views

pfsense and virtual IP addresses

I'm quite new to pfsense and network configuration in general, so I'm sorry if the question is too simple. I'm trying to set up an IPSec connection to a client machine, and to assign a hostname to a ...
0
votes
1answer
256 views

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 ...
6
votes
1answer
657 views

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 ...
0
votes
1answer
121 views

Point a subdomain to a dedicated application server using NetScaler

Background on a question: we have a domain (www.example.com) that point to multiple servers with an SSL Wildcard *.example.com aka hitting a VIP (I am not an expert on VIP would love to learn more). ...
0
votes
1answer
588 views

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 ...
0
votes
2answers
862 views

High Availability HAProxy setup behind PfSense

I am building out a new high availability environment with 2 HAProxy load balancing servers and 2 NGINX web servers all on CentOS 7. I have everything setup and working with both load balancers but am ...
0
votes
1answer
68 views

Obtain Virtual IP - Azure App Service Environment

I am trying to setup IP Based SSL instead of SNI SSL on an azure Web App. The App Service Plan is Standard S1, but unfortunately I am getting the following error message: There are no IP addresses in ...
0
votes
1answer
290 views

can we implement IP load balancing by LVS direct routing without using VIP? is we can, How?

I am trying to implement IP Load Balancing using LVS Direct routing method. Now Ideally there is a virtual IP assigned to the Load Balancer server, but I have only 3 IP addresses. I am using 10.209....
0
votes
0answers
50 views

Connecting to local VIP: wrong outbound interface used

I have an issue where my outbound connections are using the wrong interface. I believe I have routing all configured properly. I have an active/standby database on two blades that use a Virtual IP. ...
2
votes
1answer
519 views

(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 ...
1
vote
1answer
846 views

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 ...
1
vote
0answers
3k views

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 /etc/sysconfig/network-scripts/ifcfg-eth0:proxy DEVICE=eth0:proxy BOOTPROTO=none ONPARENT=no TYPE=...
-1
votes
1answer
52 views

Replacing host with another at runtime using same FQDN [closed]

I have host h1 running a few services. It registers with a central server and the server requires its FQDN and IP. I can specify any FQDN here. At run time, if h1 were to be replaced with another host ...
2
votes
2answers
446 views

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 ...
-1
votes
3answers
312 views

How does HA / failover work?

Let's say we have ten servers, each one has a copy of stateless application. user enters address in a browser / client program. dns server returns a list of ip (however many people say that dns ...
1
vote
1answer
2k views

How to pass all traffic through virtual ip on linux

I have an Ethernet card on CentOS server. It has been configured: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 40:f2:e9:9b:b7:bb brd ff:ff:ff:ff:...
1
vote
1answer
3k views

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 ...
1
vote
1answer
3k views

Multimaster Keepalived Configuration (Virtual IP with Load Balancing)

Here are requirements: 1. High Availability 2. Load Balancing First configuration 1. Two linux servers have been configured with one static IP for each: 10.17.243.11, 10.17.243.12 2. Keepalived has ...
1
vote
0answers
270 views

Binding ISC DHCPD to a virtual (heartbeat) interface

I had a DHCP server that acted as a relay endpoint and worked fine. let's say this is a solo machine with eth0 with an ip of 192.168.0.10 I needed to bring this server down and join it to a cluster, ...
-1
votes
1answer
91 views

how to 2 ip virtual in public dan private with forward to different destination

Here my case, Server 1 public IP in 1 box (eth0) -> 203.x.x.55/28 and 57/28 gw 203.x.x.49 private IP (eth1) -> 10.10.8.1 Server 2 private IP in 1 box (eth0) -> 10.10.8.5/24 and 7/24 gw 10.10.8.1 ...
1
vote
1answer
3k views

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 ...
-6
votes
2answers
3k views

How to set a virtual ip on Vmware [closed]

I’m trying to setup a high availability failover on vmware (on a single machine - locally) for learning purposes using two Ubuntu 12.04 boxes and one virtual ip with no success. Box1 listens on 192....
0
votes
1answer
7k views

How to implement virtual IPs on AWS?

Is it possible to create floating IPs within Amazon? More specifically within the VPC? If so, how can I do this? Their documentation doesn't seem to point me in the right direction. The best I could ...
0
votes
1answer
348 views

Understanding networking in a web hosting environment

Background info (pardon my lack of the correct lingo here): I'm going to be running a pair of physical servers, each hosting some simple sites with Nginx. The servers are in a colo and I will have ...
0
votes
1answer
85 views

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 ...
0
votes
1answer
2k views

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 ...
0
votes
1answer
512 views

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 ? ...
3
votes
1answer
608 views

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 ...
0
votes
3answers
3k views

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 ...
-1
votes
2answers
100 views

Is a virtual IP assigned by a hosting provider?

I'm going to be setting up HA proxy with 2 physical servers, using heartbeatd. I'm going to have clients point domains to an IP address which can't change after doing so. My hosting provider has ...
5
votes
2answers
3k views

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 ...
-1
votes
1answer
7k views

Pfsense Virtual IP NATing

Am setting up Pfsense 2.0 but am stuck when it comes to port forwarding/Natting. I've done it before but not using Virtual IPs. Say I have WAN on 11.11.11.1 and LAN on 192.168.5.5, I have added a ...
0
votes
1answer
7k views

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 ...
2
votes
1answer
6k views

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 ...
0
votes
2answers
997 views

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 ...
0
votes
1answer
765 views

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 ...
0
votes
3answers
2k views

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 ...
0
votes
1answer
1k views

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....
1
vote
0answers
86 views

IP migration by filtering

I'm looking for a solution to use virtual IPs between 2 hosts, but in a specific way. I would like to have the addresses bound to both hosts at once, but filtered out on the inactive one (arp ...