- PDF Link: cheatsheet-ipvs-A4.pdf, Category: Tools
- Blog URL: https://cheatsheet.dennyzhang.com/cheatsheet-ipvs-A4
- Related posts: CheatSheet: shell, #denny-cheatsheets
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| Name | Command |
|---|---|
| List IPVS services | sudo ipvsadm -l -n |
| Set up a new IPVS service | sudo ipvsadm -A -t 1.2.3.4:80 -s rr |
| Change scheduling mode to Round Robin | sudo ipvsadm -E -t 1.2.3.4:80 -s rr |
| Change scheduling mode to Weighted Round Robin | sudo ipvsadm -E -t 1.2.3.4:80 -s wrr |
| Delete virtual service | sudo ipvsadm -d -t 1.2.3.4:80 -r 172.17.0.3 |
| Delete real server | sudo ipvsadm -D -t 1.2.3.4:80 |
| Show stats | sudo ipvsadm -L -n --stats --rate |
| Clear the whole table | sudo ipvsadm -C |
| Reference | Link: A minimal IPVS Load Balancer demo |
user@dennyzhang:~$ sudo ipvsadm --help
ipvsadm v1.28 2015/02/09 (compiled with popt and IPVS v1.2.1)
Usage:
ipvsadm -A|E virtual-service [-s scheduler] [-p [timeout]] [-M netmask] [--pe persistence_engine] [-b sched-flags]
ipvsadm -D virtual-service
ipvsadm -C
ipvsadm -R
ipvsadm -S [-n]
ipvsadm -a|e virtual-service -r server-address [options]
ipvsadm -d virtual-service -r server-address
ipvsadm -L|l [virtual-service] [options]
ipvsadm -Z [virtual-service]
ipvsadm --set tcp tcpfin udp
ipvsadm --start-daemon state [--mcast-interface interface] [--syncid sid]
ipvsadm --stop-daemon state
ipvsadm -h
Commands:
Either long or short options are allowed.
--add-service -A add virtual service with options
--edit-service -E edit virtual service with options
--delete-service -D delete virtual service
--clear -C clear the whole table
--restore -R restore rules from stdin
--save -S save rules to stdout
--add-server -a add real server with options
--edit-server -e edit real server with options
--delete-server -d delete real server
--list -L|-l list the table
--zero -Z zero counters in a service or all services
--set tcp tcpfin udp set connection timeout values
--start-daemon start connection sync daemon
--stop-daemon stop connection sync daemon
--help -h display this help message
virtual-service:
--tcp-service|-t service-address service-address is host[:port]
--udp-service|-u service-address service-address is host[:port]
--sctp-service service-address service-address is host[:port]
--fwmark-service|-f fwmark fwmark is an integer greater than zero
Options:
--ipv6 -6 fwmark entry uses IPv6
--scheduler -s scheduler one of rr|wrr|lc|wlc|lblc|lblcr|dh|sh|sed|nq,
the default scheduler is wlc.
--pe engine alternate persistence engine may be sip,
not set by default.
--persistent -p [timeout] persistent service
--netmask -M netmask persistent granularity mask
--real-server -r server-address server-address is host (and port)
--gatewaying -g gatewaying (direct routing) (default)
--ipip -i ipip encapsulation (tunneling)
--masquerading -m masquerading (NAT)
--weight -w weight capacity of real server
--u-threshold -x uthreshold upper threshold of connections
--l-threshold -y lthreshold lower threshold of connections
--mcast-interface interface multicast interface for connection sync
--syncid sid syncid for connection sync (default=255)
--connection -c output of current IPVS connections
--timeout output of timeout (tcp tcpfin udp)
--daemon output of daemon information
--stats output of statistics information
--rate output of rate information
--exact expand numbers (display exact values)
--thresholds output of thresholds information
--persistent-conn output of persistent connection info
--nosort disable sorting output of service/server entries
--sort does nothing, for backwards compatibility
--ops -o one-packet scheduling
--numeric -n numeric output of addresses and ports
--sched-flags -b flags scheduler flags (comma-separated)
License: Code is licenipvs under MIT License.
https://medium.com/@benmeier_/a-quick-minimal-ipvs-load-balancer-demo-d5cc42d0deb4
https://docs.huihoo.com/hpc-cluster/linux-virtual-server/HOWTO/LVS-HOWTO.ipvsadm.html
