similar to: DNAT and Load Balancing

Hi, I have a suspicious problem with multiple uplinks configuration. First of all my configuration: 1) kernel 2.6.20.3 2) iptables 1.3.7 3) last iproute (for masked marks) All wan interfaces are bridged (stp disabled) in only one interface (wan0), all lan interfaces are bridged (stp enabled) in only one interface (zlan0). The wan0 bridge is to allow UPnP works. To allow related

Hello all! I applied http://www.ssi.bg/~ja/routes-2.6.8-10.diff patch to kernel 2.6.8.1 and it works fine, or almost fine. It does the load balancing well, but when one link is dropped it continues to try it. At the end of http://www.ssi.bg/~ja/nano.txt it is said to ping gateway 1 and gateway 2, for the kernel to know if that route is working, but since my linux is connected to the links

I have a doubt. If you use such a script monitoring the link status with ping and then reconfiguring, why do you need the DGD patch? You need to do some reconfiguration (change multipath to a single default route) anyway if you use the script, right? Also, the DGD patch uses src to lookup the routing table entry, but if you have a dynamic IP for the WAN interface (PPPoE, DHCP etc), this approach

Hello, I have configured a load balancing router using Julian''s patches and as described in "nano.txt" for two ISP links as shown below. ISP 1 ISP 2 . . | | | | | | | WAN

Hi, A friend of mine has 2 lines of 512kbps terminated in two Linux boxes. He now want to remove those 2 boxes and have some device which will loadbalance the two ISPs and also have a failover arrangement. But he has agreed to give me a chance to do it on Linux for my own satisfication. Is this easy to do with lartc? How do I go about it exactly? I have very less time to do it since his

IMHO, i believe that it would be more realistic to have one router providing load balancing/dead gateway to one/several subnet(s). otherwise, each server/user would have to do their own load balancing for each subnet! that, or you would need 3 routers, one for each subnet and a linux router doing the load balancing in the middle. with 3 routers, the load balancing configurations

I recompiled yet 2.6.19.1 kernel (using iptables with the same patches too). The configuration for this test is: 1) linux box with 2.6.19.1 kernel (SMP machine) with these patches/modules: a) l7-filter b) ipp2p c) connlimit d) set 2) 4 ethernet interfaces: a) 2 external (eth1 and eth3) interfaces with balanced links (as described in nato-howto) bridged as wan0

Hello, Does CentOS 5.4 support large ( > 2 TB) external storage devices using GPT (GUID Partition Tables), while the main OS resides on smaller hard disks using MBR. In this scenario, what can be the largest possible size of an ext3 partition (and filesystem) which can be created on the storage array under CentOS 5.4 ? Thanks, Manish

Hello, On the Intel Core 2 Duo processor based systems, we have the option of installing either x86_64 or the i386 distribution. I would like to know your experiences with the x86_64 port. How does it compare with the i386 distribution in terms of stability, reliability and performance ? How significant are the performance benefits gained by using the x86_64 linux instead of i386 on the same

I downloaded xen-3.2.1.tar.gz from xen.org, installed all dependencies and make world on ubuntu hardy. It compiles fine until the errors below.... ------------------------------------------------------ ... ... install -m0644 -p include/public/foreign/*.h /usr/local/src/xen-3.2.1/dist/install/usr/include/xen/foreign install -m0644 -p include/public/COPYING

Hi, could anyone provides any example about the use of ip route command to force the use of one route using masks in the mark? The configuration is: 1 LAN (zlan0) iface N WAN (wan0 ... wanN) ifaces with static IPs and load balanced. iptables 1.3.7 kernel 2.6.19.2 iproute 2.6.19 I''m yet setting marks into packets for QoS and its working, I now want to set some bits (OR)

Has anyone created or rebuilt a Linux Software RAID having mirrored partitions on unequal sized hard disks ? There is a CentOS 5 server having two 400 GB hard disks with five mirrored partitions (software RAID 1) and one of the hard disks is dying. Since new 400 GB HDDs are not available here, we are exploring the possibility of replacing the faulty hard disk with one of a higher capacity (500 GB

Dear Sir, Please help me in building the right solution. My requirement is: 1st I want to club both ISP bandwidth to get 512kbps. 2nd, In normal condition, it should be in Load balancing. 3rd , In ISP Failover condition, traffic will automatically route to working ISP. What I have: I have installed the RHEL 3.0 with 3 Network Card. Kernel is 2.4.21-9EL I have the link from two ISP both

Hello! I read the Split access and Load balancing sections into LARTC (Chapter 4). However I have one gateway only and the LARTC says about 2 links. I need to know how to make a load balance with my links. Thanks in advance. Eriberto - Brazil

I''m converting my network from a "one interface per segment" to a "single connection with vlans", well, some hardware I have requires using different vlan IDs. suffice it to say I need bridges to connect a few different vlans that should all be one but can''t be because of firmware constraints. so my first step is to get shorewall to know about bridges.

Hi all, I have a strange setup I am trying to get working. Initally I thought I could set it up by just setting up the correct routes. However after thinking about it I have convinced myself (maybe incorrectly) that I most likely need some sort of advanced NAT/routing setup. Below is a description of the networks involved: Local net (192.168.101.0/24) | | Linux machine eth1

hello i have slackware installed and i have two internet connections , ADSL(2,5mbps) + CableModem(1mbps) i want to share the connections in a small network NAT for the ADSL connection, and a proxy server for the cablemodem connection i searched all over the internet (probably not where i was supposed to) but i could''n find a solution if someone could give me a tip i would really

I have recently installed CentOS 6 on a system with a Realtek 8180L wireless card. The wireless card is detected properly and uses the rtl8180 driver. But it connects to our wireless network only after logging to the Desktop Environment (GNOME) and using the Network Manager Applet. In order to make the wireless card connect to the network automatically at system start up, I edited the Connection

Hi all I would like to know what happens with a dead router in a multipath configuration like the one presented http://lartc.org/howto/lartc.rpdb.multiple-links.html Do i need to monitor dead routers and reconfigure ? Guillermo

Hello, Is there any command / option available on CentOS to expire a user's password immediately ? I remember using "passwd -e" on some other distribution but the -e option does not seem to be present on CentOS 5.x. Thanks, Manish