Keepalived - Revision history

Busk at 17:58, 26 July 2022

2022-07-26T17:58:18Z

2021-06-02T17:25:34Z

2021-06-02T17:24:15Z

2021-06-02T17:22:58Z

2021-06-02T16:24:49Z

2021-06-02T16:21:42Z

2021-06-02T16:11:09Z

2021-05-28T15:43:25Z

Created page with "https://nutss.wordpress.com/2019/07/12/high-availability-support-keepalived-and-nginx-on-ubuntu-debian/"

New page

https://nutss.wordpress.com/2019/07/12/high-availability-support-keepalived-and-nginx-on-ubuntu-debian/

← Older revision		Revision as of 17:58, 26 July 2022
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
		+	- https://www.ibm.com/docs/en/elm/6.0.5?topic=SSYMRC_6.0.5/com.ibm.jazz.install.doc/topics/t_setup_haproxy_ha.html

@@ Line 20: / Line 20: @@
      # smtp_server 192.168.200.1
      # smtp_connect_timeout 30
      router_id ADC_DEV
      vrrp_skip_check_adv_addr
      vrrp_garp_interval .001
      vrrp_gna_interval .001

@@ Line 22: / Line 22: @@
      router_id ADC_DEV
      vrrp_skip_check_adv_addr
      vrrp_garp_interval .001
      vrrp_gna_interval .001

@@ Line 13: / Line 13: @@
 ```
 global_defs {
-   notification_email {
+    notification_email {
-     myuser@example.com
+        sysadmin@example.com
-     failover@example.com
+        failover@example.com
-     sysadmin@example.com
+    # notification_email_from no-reply@example.com
-   # notification_email_from Alexandre.Cassen@example.com
+    # smtp_server 192.168.200.1
-   # smtp_server 192.168.200.1
+    # smtp_connect_timeout 30
-   # smtp_connect_timeout 30
+    router_id ADC_DEV
-   router_id LVS_DEVEL
+    vrrp_skip_check_adv_addr
-   vrrp_skip_check_adv_addr
+    vrrp_garp_interval .001
-   # vrrp_strict  # Breaks using auth_type PASS - https://askubuntu.com/questions/1312333/keepalived-not-working-on-20-04
+    vrrp_gna_interval .001
-   vrrp_garp_interval 0
+    enable_script_security
-   vrrp_gna_interval 0
+    script_user nobody
+}
 vrrp_instance VI_1 {
@@ Line 42: / Line 57: @@
 .168.200.17
 .168.200.18
+     }
+}

@@ Line 23: / Line 23: @@
     router_id LVS_DEVEL
     vrrp_skip_check_adv_addr
-    vrrp_strict
+    # vrrp_strict  # Breaks using auth_type PASS - https://askubuntu.com/questions/1312333/keepalived-not-working-on-20-04
     vrrp_garp_interval 0
     vrrp_gna_interval 0

@@ Line 3: / Line 3: @@
 - 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
 ```
-sudo tcpdump -npi eth0 net 224
+apt update && apt install keepalived
-:10:05.472897 IP 172.16.0.167 > 224.0.0.18: VRRPv2, Advertisement, vrid 51, prio 100, authtype none, intvl 1s, length 28
+sudo useradd -r -s /bin/false keepalived_script
 ```
 ```
 global_defs {
@@ Line 42: / Line 44: @@
+     }
+}
 ```

← Older revision		Revision as of 16:11, 2 June 2021
Line 1:		Line 1:
−	https://nutss.wordpress.com/2019/07/12/high-availability-support-keepalived-and-nginx-on-ubuntu-debian/	+	# 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
		+
		+	```
		+	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
		+	```
		+
		+	```
		+	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
		+	}
		+	}
		+	```