3 // /etc/sysctl.conf generator
5 // Mark Huang <mlhuang@cs.princeton.edu>
6 // Copyright (C) 2006 The Trustees of Princeton University
8 // $Id: sysctl.php,v 1.1 2006/11/06 22:02:17 mlhuang Exp $
11 // Get admin API handle
12 require_once 'plc_api.php';
18 $nodenetworks = $adm->GetNodeNetworks(array('ip' => $_SERVER['REMOTE_ADDR']));
19 if (!empty($nodenetworks)) {
20 $nodes = $adm->GetNodes(array($nodenetworks[0]['node_id']));
23 $nodenetworks = $adm->GetNodeNetworks($node['nodenetwork_ids']);
24 foreach ($nodenetworks as $nodenetwork) {
25 // Nodes with proxy socket interfaces need to be able to forward
26 // between the fake proxy0 interface and the real interface.
27 if ($nodenetwork['method'] == 'proxy') {
37 # Kernel sysctl configuration file for Red Hat Linux
39 # For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and
40 # sysctl.conf(5) for more details.
42 # Controls IP packet forwarding
43 net.ipv4.ip_forward = <?php echo $ip_forward; ?>
45 # Controls source route verification
46 net.ipv4.conf.default.rp_filter = 1
48 # Controls the System Request debugging functionality of the kernel
51 # Controls whether core dumps will append the PID to the core filename.
52 # Useful for debugging multi-threaded applications.
53 kernel.core_uses_pid = 1
55 # TCP window scaling and broken routers
56 net.ipv4.tcp_moderate_rcvbuf=0
57 net.ipv4.tcp_default_win_scale=0
58 net.ipv4.tcp_window_scaling=0
60 # Mark only out of window RST segments as INVALID. This setting, among
61 # other things, allows data to be sent with SYN packets.
62 net.ipv4.netfilter.ip_conntrack_tcp_be_liberal=1