2 description "Base role applied to all servers"
7 :grant => { :status => :administrator },
8 :tomh => { :status => :administrator },
9 :matt => { :status => :administrator },
10 :jburgess => { :status => :administrator }
14 :search => ["openstreetmap.org"]
18 :exim_queue_limit => {
19 :help => "Mail queue alert level",
26 :comment => "Reboot automatically after a panic",
27 :parameters => { "kernel.panic" => "60" }
30 :comment => "Do TCP level MTU probing if we seem to have an ICMP blackhole",
32 "net.ipv4.tcp_mtu_probing" => "1",
33 "net.ipv4.tcp_base_mss" => "1024"
37 :comment => "Tune network buffers",
39 "net.core.rmem_max" => "16777216",
40 "net.core.wmem_max" => "16777216",
41 "net.ipv4.tcp_rmem" => "4096 87380 16777216",
42 "net.ipv4.tcp_wmem" => "4096 65536 16777216",
43 "net.ipv4.udp_mem" => "3145728 4194304 16777216"
47 :comment => "Increase maximum backlog for incoming network packets",
49 "net.core.netdev_max_backlog" => "2500",
50 "net.core.netdev_budget" => "600"
53 :network_conntrack_established => {
54 :comment => "Only track established connections for four hours",
56 "net.netfilter.nf_conntrack_tcp_timeout_established" => "14400"
60 :comment => "Turn on syncookies to protect against SYN floods",
62 "net.ipv4.tcp_syncookies" => "1"
66 :comment => "Use fq as the default queuing discipline",
68 "net.core.default_qdisc" => "fq"
71 :tune_cpu_scheduler => {
72 :comment => "Tune CPU scheduler for server scheduling",
74 "kernel.sched_autogroup_enabled" => 0
77 :default_console_log_level => {
78 :comment => "Set console log level defaults",
80 "kernel.printk" => "4 4 1 7"