Difference between revisions of "Keepalived"
Jump to navigation
Jump to search
| Line 3: | Line 3: | ||
- https://nutss.wordpress.com/2019/07/12/high-availability-support-keepalived-and-nginx-on-ubuntu-debian/ | - https://nutss.wordpress.com/2019/07/12/high-availability-support-keepalived-and-nginx-on-ubuntu-debian/ | ||
- https://askubuntu.com/questions/1312333/keepalived-not-working-on-20-04 | - https://askubuntu.com/questions/1312333/keepalived-not-working-on-20-04 | ||
| + | |||
``` | ``` | ||
| − | sudo | + | apt update && apt install keepalived |
| − | + | sudo useradd -r -s /bin/false keepalived_script | |
``` | ``` | ||
| + | /etc/keepalived/keepalived.conf | ||
``` | ``` | ||
global_defs { | global_defs { | ||
| Line 42: | Line 44: | ||
} | } | ||
} | } | ||
| + | ``` | ||
| + | |||
| + | Logs | ||
| + | ``` | ||
| + | systemctl status keepalived | ||
| + | journalctl -f | ||
| + | ``` | ||
| + | |||
| + | capture multicast traffic | ||
| + | ``` | ||
| + | sudo tcpdump -npi eth0 net 224 | ||
| + | 16:10:05.472897 IP 172.16.0.167 > 224.0.0.18: VRRPv2, Advertisement, vrid 51, prio 100, authtype none, intvl 1s, length 28 | ||
| + | ``` | ||
``` | ``` | ||
Revision as of 16:21, 2 June 2021
Refs
- https://github.com/acassen/keepalived/blob/master/keepalived/etc/keepalived/keepalived.conf.in-
- https://nutss.wordpress.com/2019/07/12/high-availability-support-keepalived-and-nginx-on-ubuntu-debian/
- https://askubuntu.com/questions/1312333/keepalived-not-working-on-20-04
apt update && apt install keepalived sudo useradd -r -s /bin/false keepalived_script
/etc/keepalived/keepalived.conf
global_defs {
notification_email {
myuser@example.com
failover@example.com
sysadmin@example.com
}
# notification_email_from Alexandre.Cassen@example.com
# smtp_server 192.168.200.1
# smtp_connect_timeout 30
router_id LVS_DEVEL
vrrp_skip_check_adv_addr
vrrp_strict
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.200.16
192.168.200.17
192.168.200.18
}
}
Logs
systemctl status keepalived journalctl -f
capture multicast traffic
sudo tcpdump -npi eth0 net 224 16:10:05.472897 IP 172.16.0.167 > 224.0.0.18: VRRPv2, Advertisement, vrid 51, prio 100, authtype none, intvl 1s, length 28
```