sysctl.conf (1911B)
1# /etc/sysctl.conf 2# 3# For more information on how this file works, please see 4# the manpages sysctl(8) and sysctl.conf(5). 5# 6# In order for this file to work properly, you must first 7# enable 'Sysctl support' in the kernel. 8# 9# Look in /proc/sys/ for all the things you can setup. 10# 11 12# Disables packet forwarding 13net.ipv4.ip_forward = 0 14# Disables IP dynaddr 15#net.ipv4.ip_dynaddr = 0 16# Disable ECN 17#net.ipv4.tcp_ecn = 0 18# Enables source route verification 19#net.ipv4.conf.default.rp_filter = 1 20# Enable reverse path 21#net.ipv4.conf.all.rp_filter = 1 22 23# Enable SYN cookies (yum!) 24# http://cr.yp.to/syncookies.html 25#net.ipv4.tcp_syncookies = 1 26 27# Enable people in the specified (min, max) group range to send ICMP_ECHO 28# messages (i.e. ping) and receive ICMP_ECHOREPLY responses. This allows 29# you to run non-suid and non-caps `ping`, but it also means anyone with 30# a gid in this range can send those packets (not just via `ping`). 31#net.ipv4.ping_group_range = 100 100 32 33# Disable source route 34#net.ipv4.conf.all.accept_source_route = 0 35#net.ipv4.conf.default.accept_source_route = 0 36 37# Disable redirects 38#net.ipv4.conf.all.accept_redirects = 0 39#net.ipv4.conf.default.accept_redirects = 0 40 41# Disable secure redirects 42#net.ipv4.conf.all.secure_redirects = 0 43#net.ipv4.conf.default.secure_redirects = 0 44 45# Ignore ICMP broadcasts 46#net.ipv4.icmp_echo_ignore_broadcasts = 1 47 48# Disables the magic-sysrq key 49#kernel.sysrq = 0 50# When the kernel panics, automatically reboot in 3 seconds 51#kernel.panic = 3 52# Allow for more PIDs (cool factor!); may break some programs 53#kernel.pid_max = 999999 54 55# You should compile nfsd into the kernel or add it 56# to modules.autoload for this to work properly 57# TCP Port for lock manager 58#fs.nfs.nlm_tcpport = 0 59# UDP Port for lock manager 60#fs.nfs.nlm_udpport = 0 61 62# Disable IPv6 63net.ipv6.conf.all.disable_ipv6 = 1 64net.ipv6.conf.default.disable_ipv6 = 1 65net.ipv6.conf.lo.disable_ipv6 = 1