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Load Balancing with iptables and ip rule

Load Balancing with iptables and ip rule Steps This example uses an Arch Linux device with two Internet uplinks: eth0 and eth1. The mapping is: Mark 10 (0xa) - Routing table #110 - use eth0 Mark 11 (0xb) - Routing table #111 - use eth1 We decide which uplink to use based on the packet mark. First, use ip rule to map each mark to its routing table. The default routing table priority is 32768. To ensure our tables are used, set a higher priority (for example 31000).

Wednesday, December 4, 2019 Read
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Fighting ISP Cache Hijacking Again with iptables

Fighting ISP Cache Hijacking Again with iptables Cause The fight against the carrier cache problem started two years ago. The carrier even cached cnpm data. Worse, their cache servers were not only slow like a turtle in a marathon, they also crashed frequently, so I just wanted to write code but had to face a wall of red errors. Fix iptables -I FORWARD -p tcp -m tcp -m ttl --ttl-gt 20 -m ttl --ttl-lt 30 -j DROP

Monday, October 7, 2019 Read