Networking :: NAT Stops Working When Load Balancing Is Enabled?
Dec 5, 2010
I am using the routing multiple upstream providers solution available on internet using iproute and gwping script. It works great but the problem I am facing is;
Code:
ip route add 192.168.15.0/24 dev eth1 src 192.168.15.2 table ptcl
ip route add default via 192.168.15.1 table ptcl
ip route add 192.168.16.0/24 dev eth2 src 192.168.16.2 table nayatel
ip route add default via 192.168.16.1 table nayatel
I am having a problem getting ISP load balancing working. Currently I can get only one side or the other working. I have been researching and reading Forum threads and other related posts on the subject.. I have read Howto's and lartc.org/howto.
I'm running a Source Dedicated Server on my Ubuntu laptop, and to connect to it via external IP from other computers in the network I need to enable loopback in my router.This was working fine, but then I disconnected my laptop for a few days, and when I came back the wireless stopped working on my Xbox. I reset the router to factory defaults, and then setup everything again. It was all working fine until I enabled loopback again and power cycled my router. Now every time I do that, the internet on Ubuntu stops working and the wireless on the Xbox stops working.
Edit: You can ignore this I guess. It seems I was actually DISABLING loopback by enabling that router option, which I guess caused this. Strange, because the first time enabling this option was the only way to get my external ip to work. Oh well, everything is fine now.
I have 3 machine each one is running ftp daemon(example), and have an application daemon which is monitoring load and can communicate with remaining servers. now for every new connection I can check load of each server and I want to redirect that socket connect request to least loaded server. that load balancer daemon should be able to do this at runtime without breaking any existing communication. This should work seamlessly with any application. How I can achieve it using any combination of Advance routing, VLAN, iptables LINUX.
I am using centos with two physical LAN cards. Some times one of our internet link goes down so the entire network stop. Now there are two different ISP internet lines coming into a single computer in their respactive lan cards for load balancing. Kindly guide me that how can I enable Load Balancing in my Linux Box.
If one ISP goes down the load balancing server will use teh second one and vice virsa.
My system: Slackware 13.0, 512MB RAM, x86 This is the webcam I'm trying to get working:
Quote:
Originally Posted by lsusb 2460 Pixart Imaging, Inc. Q-TEC WEBCAM 100
When I plug the webcam in (usb), the led starts to shine, indicating that it is filming. When I use a program (XSane for example) and click the 'scan' button, the led turns off! It seems that the cam works when it shouldn't, and vice versa.
I would like to say first and foremost that I have tried to lookup what I can find about this thing I am doing and most of the time all I have found are either un-replied posts or vaguely explained answers but here is what I want to do.I want to setup a small gateway for my new office using two 3G internet providers offering Huawei usb modems. So I would like to have two internet links active per time and have one LAN consuming from the two links. I have seen the phrase Load Balancing all over the place but they all show their examples using ethernet and static IP's. My providers give DHCP ip addresses so is there anything I need to know and can anyone point me in the direction of some tutorial or howto i can follow to do this?
eth0 is the default route, and eth3 is being used for something else. So what I want to do is load balance browsing between eth1 and eth2. I've added all of the routes in the LARTC guide, but the command to enable the load balancing:
Quote:
ip route add default scope global nexthop via $P1 dev $IF1 weight 1 nexthop via $P2 dev $IF2 weight 1 obviously involves creating a new default route. Since I'll be using Squid to push the traffic through the relevant line, how can I set up a load-balanced link for eth1 and eth2 without changing the existing default route on the server?
I'm running Ubuntu 10.10 Maverick Meerkat 64-bit on my desktop with a wired internet connection (with no firewall). For the past 2 days, I have observed that1. Firefox randomly throws up errors like "Problem loading page" whenever I click on a hyperlink. When I click on Reload, the page loads up just fine. This has been happening a lot recently..and I do not remember updating anything consciously. By the way, ipv6 is disabled in Firefox.2. The network stops working all of a sudden (usually indicated by the Firefox error). The Autho Eth0 indication is active, but I am unable to connect to any external machine.
3. Needless to say, this error is manifesting itself in apt-get as well. I get "something wicked happened" errors all the time, and am unable to download or install anything.That this is not a problem with the ISP is obvious because I also have Windows (from which I'm typing this, ironically), which is able to access the internet.Is this a bug in Ubuntu 10.10?
Have a very unusual problem that I am looking at troubleshooting. Only problem is I don't know where to start.I have the following wireless usb device:
Now it is fine when browsing the web, but whenever I download a large file/game from Steam it becomes unresponsive and stops working.I have noticed it happens whenever the download is maxed..which at the moment is at around 5.4mbps on steam.Never get a warning...just internet stops working...no pages can be displayed...The connection never disconnects.I can only get it working again when I unplug it and re insert it back in again.
Things I have tried: - Returning it to the shop and getting a new one (didn't fix it).
Code: Select allzerocool@hal9000:~$ uname -a Linux hal9000 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt4-3 (2015-02-03) x86_64 GNU/Linux
this is with both network manager and WICD, a problem i've had since i got ubuntu - multiple wipes and reinstalls the wifi is supported out of the box, the problem i've randomly run into since installing is, it will randomly stop detecting networks "no networks detected"
i've noticed over time as this as been happening, that it usually happens whenever there is a high load - multiple videos going on multiple tabs, videos queued up etc. its never happened during regular browsing - theres always a lot going on when it happens, almost like it collapses. the only way to fix this, is to quit the manager - shut off the computer (restarting doesnt work) and then it comes back after
host - ubuntu 1004 desktop 64-bit VM1 - ubuntu 1010 LAMP server 64 bit (without X) VM2 - ubuntu 1010 server 64-bit (without X) Virtualizer - Oracle VBox
point me the URL in respect of guides/howto to set up load balancing between 2 VMs, to sync VM1 to VM2. Google search on "howto load balancing linux lamp server on vbox vm" found follow; How to configure a low-cost load-balanced LAMP cluster [URL]
I want to know more multi WAN configuration in firewall and multi WAN loadbalancing configuration and what firewall or server mostly recommand from linux
I have a 10.04 32-bit virtual ubuntu server. I am trying to figure out how to setup load balancing. Here is how I planned out to do it, I need direction for what software I should use.
--Internet(1.2.3.4) --Router ---Load Balancing Server (192.168.1.30), port 80, public as in port forwarded Load balancer sends traffic to either web server ---Web Server 1 (192.168.1.100) ---Web Server 2 (192.168.1.101)
I heard I should use rsync to keep the files concurrent, at this point rsync is the least of my worries. I need to know what load balancer I should use I have tried and failed with crossroads(xr), and balance. I can't seem to find a modern tutorial for either system. I looked at linux virtual server but that is like 5 years ahead of my current knowledge.
I'm folding and I need it to only run on 6 cores instead of 8, and I have it set to do that but Ubuntu decides to bounce the load around the 2 extra cores as well, hurting my performance. Is there a way to disable it or set it to work only on 6 specific cores?
I already setup the load balancer and two servers behind it with this kind of topology
Code:
_ Server 1 request -> DIRECTOR / \_ Server 2
[code]....
The problem is when I try to hit the 192.168.1.1, it sometimes give me a HTTP 200 and sometimes it will timed out. I hit it using lynx -dump. It should return "Hello world!" if success. But if we hit it directly to 192.168.1.2:80 and 192.168.1.3:80, it will return HTTP 200 which means no error and no timeout. Since the Server 1 is the same as Server 2 in configuration, are there somethings I missed here?
Another information is that I set the director using round robin algorithm, so everytime a successful hit returned from server 1, the next one is surely heading to Server 2 right? Based on the Apache's access log, I also knew that the timed out occured only when it is the Server 2's turn to handle the request. Aside from the same httpd.conf and the same httpd version are there any things in the system level, kernel level that should be the same between those two servers?
A little background: CCNA and A+ I have preformed this task on Cisco routers Linux for 5+ years, mostly with Debian (mostly casual, a few production situations) I need to setup a linux box with Load Balancing over a cable line 8mb down, 1mb up connection and a T1 line. If this isn't possible, at the very least I need Failover (which I have admittedly not researched as fully.) I know Failover is possible, but I would really love to double my upload bandwidth as we host a small website here. Is load balancing over uneven connections possible on Debian?
Side question: If I host a website, when users connect and get responses over 2 Public IP's, what would be the reaction on the users side? Would it get filtered and or blocked by a firewall?
I'm having problems with my route rule in Firewall, I have two links that are working, and set the firewall to use multiple links at once. What has happened is that when i look the IPs of the clients, (its have for default the route to Link 2), they are changing or losing the rule route for link 2 and have in Explorer the Link 1 in any site for show me ip address, then after some seconds back to normal. And the firewall is not configured to do routing load balancing. What can be? Exist some configuration of kernel to accept this configuration ? Like ip route source or anything ?
i Have a Squid Server , i'm Using That for Caching ... i Have 3 Ether on My " Squid Server ". Ether1 : Directly Internet From ISP1 , 2Mbps . Ether2 : Directly Internet From ISP2 , 512 KBps . Ether3 : Connected too LAN . i want All The Files Format with " MP3 , RAR , ZIP , AVI , ... (All Downloads File) " Get From Ether1(ISP1) and WebPages Like " HTML , ASP , CGI , & ... " Get from Ether2(ISP2) i Not Know How to Configure That with My 2 ISP internet.
- One is loadbalancer, installed keepalived and ipvsadm - LV1
- One is failover for loadbalancer, installed keepalived and ipvsadm too - LV2
- The other servers was installed httpd and mysqld. (RealServer)
LV1 load balancing for both httpd and mysql. And it's working fine.
VIP for http: 192.168.1.110
VIP for mysql: 192.168.1.111
Now I want to setup a website on RealServers , with URL is [url], and this website connect to mysql via VIP 192.168.1.111, this means real servers will connect to their mysql via load balancer (LV!). I tried to connect mysql via VIP from real server but it cannot.
This is my first time to test piranha and I can't understand couple things: 1. how to setup public floating IP address between active and backup piranha node? 2. does piranha nodes have to run on public IP? 3. how to connect active piranha node with backup nodes? 4. does piranha only support http and ftp? 5. do I need to create common login for load monitor so that piranha could login to real servers and check the load ? 6. what is the hardware requirement for piranha to run on heavy loading site? I am using VMs all the time. I am using web gui interface with minor file editing, but I prefer done it with GUI. Currently running Centos 5.6 x86_64.
I have OpenSuse 11.1 installed in a system as server (without graphics). We have 3 NICs, 2 of them connected to 2 different ISPs through gateways, as follows:
IPs for NICs: IP1=192.168.5.2/24; IP2=192.168.6.2/24 dev=eth2 Gateways: GW1=192.168.5.10; GW2=192.168.6.10 dev=eth3 Third NIC connected into the internal network with and IP=192.168.11.2/24 dev=eth0
We added ip routes and rules as follows (used tables created with vim in the rt_table file with numbers 20 & 30):
ip route add NET1 dev DEV1 src IP1 table TB1 ip route add default via GW1 table TB1 ip route add NET2 dev DEV2 src IP2 table TB2
[code]....
ip route add default scope global nexthop via GW1 dev DEV1 weight WG1 nexthop via GW2 dev DEV2 weight WG2 from the server I could ping Yahoo! and ping any PC connected in the internal network (192.168.11.xxx). Fro PCs I could ping all the IPs of the server but not the GWs neither any web site, I couldn't surf either.
we have an ubuntu server (10.04 LTS) with apache2 (2.2.9) and mod_proxy + proxy_balancer enabled.Reverse proxy works greatly, but I can't get load balancing working. Apache connect always to first member.
My configuration is as follow:
ProxyRequests Off <Proxy *> Order deny,allow Allow from all </Proxy> <Proxy balancer://test>
I'm a newbie on Ubuntu, I have a problem with squid proxy. I'd like to configure a system, include:
- a server is named ProxyServer that is installed Squid proxy. - three servers, are named FTPServer01, FTPServer02, FTPServer03. each server is installed vsftpd. - Clients are installed Filezilla to up/download resource.
All servers are managed by IP address. When a client request a resource, client connect to ProxyServer, this ProxyServer will switch to one of Ftp servers. I do not know how to configure the squid's config file to setup them.
