diff options
Diffstat (limited to 'examples/sync/nack')
| -rw-r--r-- | examples/sync/nack/Makefile.am | 2 | ||||
| -rw-r--r-- | examples/sync/nack/README | 1 | ||||
| -rw-r--r-- | examples/sync/nack/node1/Makefile.am | 1 | ||||
| -rw-r--r-- | examples/sync/nack/node1/conntrackd.conf | 125 | ||||
| -rw-r--r-- | examples/sync/nack/node1/keepalived.conf | 38 | ||||
| -rw-r--r-- | examples/sync/nack/node2/Makefile.am | 1 | ||||
| -rw-r--r-- | examples/sync/nack/node2/conntrackd.conf | 124 | ||||
| -rw-r--r-- | examples/sync/nack/node2/keepalived.conf | 38 | ||||
| -rwxr-xr-x | examples/sync/nack/script_backup.sh | 3 | ||||
| -rwxr-xr-x | examples/sync/nack/script_master.sh | 5 |
10 files changed, 338 insertions, 0 deletions
diff --git a/examples/sync/nack/Makefile.am b/examples/sync/nack/Makefile.am new file mode 100644 index 0000000..6fd99b1 --- /dev/null +++ b/examples/sync/nack/Makefile.am @@ -0,0 +1,2 @@ +EXTRA_DIST = script_backup.sh script_master.sh +SUBDIRS = node1 node2 diff --git a/examples/sync/nack/README b/examples/sync/nack/README new file mode 100644 index 0000000..66987f7 --- /dev/null +++ b/examples/sync/nack/README @@ -0,0 +1 @@ +This directory contains the files for the NACK based protocol diff --git a/examples/sync/nack/node1/Makefile.am b/examples/sync/nack/node1/Makefile.am new file mode 100644 index 0000000..edc0ed7 --- /dev/null +++ b/examples/sync/nack/node1/Makefile.am @@ -0,0 +1 @@ +EXTRA_DIST = conntrackd.conf keepalived.conf diff --git a/examples/sync/nack/node1/conntrackd.conf b/examples/sync/nack/node1/conntrackd.conf new file mode 100644 index 0000000..f24fa7e --- /dev/null +++ b/examples/sync/nack/node1/conntrackd.conf @@ -0,0 +1,125 @@ +# +# Synchronizer settings +# +Sync { + Mode NACK { + # + # Size of the buffer that hold destroy messages for + # possible resends (in bytes) + # + ResendBufferSize 262144 + + # + # Entries committed to the connection tracking table + # starts with a limited timeout of N seconds until the + # takeover process is completed. + # + CommitTimeout 180 + + # Set Acknowledgement window size + ACKWindowSize 20 + } + + # + # Multicast IP and interface where messages are + # broadcasted (dedicated link). IMPORTANT: Make sure + # that iptables accepts traffic for destination + # 225.0.0.50, eg: + # + # iptables -I INPUT -d 225.0.0.50 -j ACCEPT + # iptables -I OUTPUT -d 225.0.0.50 -j ACCEPT + # + Multicast { + IPv4_address 225.0.0.50 + IPv4_interface 192.168.100.100 # IP of dedicated link + Group 3780 + Backlog 20 + } + + # Enable/Disable message checksumming + Checksum on + + # Uncomment this if you want to replicate just certain TCP states. + # This option introduces a tradeoff in the replication: it reduces + # CPU consumption and lost messages rate at the cost of having + # backup replicas that don't contain the current state that the active + # replica holds. TCP states are: SYN_SENT, SYN_RECV, ESTABLISHED, + # FIN_WAIT, CLOSE_WAIT, LAST_ACK, TIME_WAIT, CLOSE, LISTEN. + # + # Replicate ESTABLISHED TIME_WAIT for TCP +} + +# +# General settings +# +General { + # + # Number of buckets in the caches: hash table + # + HashSize 8192 + + # + # Maximum number of conntracks: + # it must be >= $ cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max + # + HashLimit 65535 + + # + # Logfile + # + LogFile /var/log/conntrackd.log + + # + # Lockfile + # + LockFile /var/lock/conntrack.lock + + # + # Unix socket configuration + # + UNIX { + Path /tmp/sync.sock + Backlog 20 + } + + # + # Netlink socket buffer size + # + SocketBufferSize 262142 + + # + # Increase the socket buffer up to maximum if required + # + SocketBufferSizeMaxGrown 655355 +} + +# +# Ignore traffic for a certain set of IP's: Usually +# all the IP assigned to the firewall since local +# traffic must be ignored, just forwarded connections +# are worth to replicate +# +IgnoreTrafficFor { + IPv4_address 127.0.0.1 # loopback + IPv4_address 192.168.0.1 + IPv4_address 192.168.1.1 + IPv4_address 192.168.100.100 # dedicated link ip + IPv4_address 192.168.0.100 # virtual IP 1 + IPv4_address 192.168.1.100 # virtual IP 2 +} + +# +# Do not replicate certain protocol traffic +# +IgnoreProtocol { + UDP + ICMP + IGMP + VRRP + # numeric numbers also valid +} + +# +# Strip NAT traffic +# +StripNAT diff --git a/examples/sync/nack/node1/keepalived.conf b/examples/sync/nack/node1/keepalived.conf new file mode 100644 index 0000000..41aa35b --- /dev/null +++ b/examples/sync/nack/node1/keepalived.conf @@ -0,0 +1,38 @@ +vrrp_sync_group G1 { # must be before vrrp_instance declaration + group { + VI_1 + VI_2 + } + notify_master /etc/conntrackd/script_master.sh + notify_backup /etc/conntrackd/script_backup.sh +} + +vrrp_instance VI_1 { + interface eth1 + state SLAVE + virtual_router_id 61 + priority 80 + advert_int 3 + authentication { + auth_type PASS + auth_pass papas_con_tomate + } + virtual_ipaddress { + 192.168.0.100 # default CIDR mask is /32 + } +} + +vrrp_instance VI_2 { + interface eth0 + state SLAVE + virtual_router_id 62 + priority 80 + advert_int 3 + authentication { + auth_type PASS + auth_pass papas_con_tomate + } + virtual_ipaddress { + 192.168.1.100 + } +} diff --git a/examples/sync/nack/node2/Makefile.am b/examples/sync/nack/node2/Makefile.am new file mode 100644 index 0000000..edc0ed7 --- /dev/null +++ b/examples/sync/nack/node2/Makefile.am @@ -0,0 +1 @@ +EXTRA_DIST = conntrackd.conf keepalived.conf diff --git a/examples/sync/nack/node2/conntrackd.conf b/examples/sync/nack/node2/conntrackd.conf new file mode 100644 index 0000000..4f15773 --- /dev/null +++ b/examples/sync/nack/node2/conntrackd.conf @@ -0,0 +1,124 @@ +# +# Synchronizer settings +# +Sync { + Mode NACK { + # + # Size of the buffer that hold destroy messages for + # possible resends (in bytes) + # + ResendBufferSize 262144 + + # Entries committed to the connection tracking table + # starts with a limited timeout of N seconds until the + # takeover process is completed. + # + CommitTimeout 180 + + # Set Acknowledgement window size + ACKWindowSize 20 + } + + # + # Multicast IP and interface where messages are + # broadcasted (dedicated link). IMPORTANT: Make sure + # that iptables accepts traffic for destination + # 225.0.0.50, eg: + # + # iptables -I INPUT -d 225.0.0.50 -j ACCEPT + # iptables -I OUTPUT -d 225.0.0.50 -j ACCEPT + # + Multicast { + IPv4_address 225.0.0.50 + IPv4_interface 192.168.100.200 # IP of dedicated link + Group 3780 + Backlog 20 + } + + # Enable/Disable message checksumming + Checksum on + + # Uncomment this if you want to replicate just certain TCP states. + # This option introduces a tradeoff in the replication: it reduces + # CPU consumption and lost messages rate at the cost of having + # backup replicas that don't contain the current state that the active + # replica holds. TCP states are: SYN_SENT, SYN_RECV, ESTABLISHED, + # FIN_WAIT, CLOSE_WAIT, LAST_ACK, TIME_WAIT, CLOSE, LISTEN. + # + # Replicate ESTABLISHED TIME_WAIT for TCP +} + +# +# General settings +# +General { + # + # Number of buckets in the caches: hash table + # + HashSize 8192 + + # + # Maximum number of conntracks: + # it must be >= $ cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max + # + HashLimit 65535 + + # + # Logfile + # + LogFile /var/log/conntrackd.log + + # + # Lockfile + # + LockFile /var/lock/conntrack.lock + + # + # Unix socket configuration + # + UNIX { + Path /tmp/sync.sock + Backlog 20 + } + + # + # Netlink socket buffer size + # + SocketBufferSize 262142 + + # + # Increase the socket buffer up to maximum if required + # + SocketBufferSizeMaxGrown 655355 +} + +# +# Ignore traffic for a certain set of IP's: Usually +# all the IP assigned to the firewall since local +# traffic must be ignored, just forwarded connections +# are worth to replicate +# +IgnoreTrafficFor { + IPv4_address 127.0.0.1 # loopback + IPv4_address 192.168.0.2 + IPv4_address 192.168.1.2 + IPv4_address 192.168.100.200 # dedicated link ip + IPv4_address 192.168.0.200 # virtual IP 1 + IPv4_address 192.168.1.200 # virtual IP 2 +} + +# +# Do not replicate certain protocol traffic +# +IgnoreProtocol { + UDP + ICMP + IGMP + VRRP + # numeric numbers also valid +} + +# +# Strip NAT traffic +# +StripNAT diff --git a/examples/sync/nack/node2/keepalived.conf b/examples/sync/nack/node2/keepalived.conf new file mode 100644 index 0000000..41aa35b --- /dev/null +++ b/examples/sync/nack/node2/keepalived.conf @@ -0,0 +1,38 @@ +vrrp_sync_group G1 { # must be before vrrp_instance declaration + group { + VI_1 + VI_2 + } + notify_master /etc/conntrackd/script_master.sh + notify_backup /etc/conntrackd/script_backup.sh +} + +vrrp_instance VI_1 { + interface eth1 + state SLAVE + virtual_router_id 61 + priority 80 + advert_int 3 + authentication { + auth_type PASS + auth_pass papas_con_tomate + } + virtual_ipaddress { + 192.168.0.100 # default CIDR mask is /32 + } +} + +vrrp_instance VI_2 { + interface eth0 + state SLAVE + virtual_router_id 62 + priority 80 + advert_int 3 + authentication { + auth_type PASS + auth_pass papas_con_tomate + } + virtual_ipaddress { + 192.168.1.100 + } +} diff --git a/examples/sync/nack/script_backup.sh b/examples/sync/nack/script_backup.sh new file mode 100755 index 0000000..813e375 --- /dev/null +++ b/examples/sync/nack/script_backup.sh @@ -0,0 +1,3 @@ +#!/bin/sh + +/usr/sbin/conntrackd -n # request a resync from other nodes via multicast diff --git a/examples/sync/nack/script_master.sh b/examples/sync/nack/script_master.sh new file mode 100755 index 0000000..ff1dbc0 --- /dev/null +++ b/examples/sync/nack/script_master.sh @@ -0,0 +1,5 @@ +#!/bin/sh + +/usr/sbin/conntrackd -c # commit the cache +/usr/sbin/conntrackd -f # flush the caches +/usr/sbin/conntrackd -R # resync with kernel conntrack table |