diff options
Diffstat (limited to 'deploy/adapters/cobbler/snippets/sysctl.xml')
| -rw-r--r-- | deploy/adapters/cobbler/snippets/sysctl.xml | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/deploy/adapters/cobbler/snippets/sysctl.xml b/deploy/adapters/cobbler/snippets/sysctl.xml new file mode 100644 index 00000000..fe13bf7f --- /dev/null +++ b/deploy/adapters/cobbler/snippets/sysctl.xml @@ -0,0 +1,78 @@ +<file> + <file_path>/etc/sysctl.conf</file_path> + <file_contents> +<![CDATA[ +#raw +# Kernel sysctl configuration file for Red Hat Linux +# +# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and +# sysctl.conf(5) for more details. + +# Controls IP packet forwarding +net.ipv4.ip_forward = 0 + +# Controls source route verification +net.ipv4.conf.default.rp_filter = 1 + +# Do not accept source routing +net.ipv4.conf.default.accept_source_route = 0 + +# Controls the System Request debugging functionality of the kernel +kernel.sysrq = 0 + +# Controls whether core dumps will append the PID to the core filename. +# Useful for debugging multi-threaded applications. +kernel.core_uses_pid = 1 + +# Controls the use of TCP syncookies +net.ipv4.tcp_syncookies = 1 + +# Controls the default maxmimum size of a mesage queue +kernel.msgmnb = 65536 + +# Controls the maximum size of a message, in bytes +kernel.msgmax = 65536 + +# Controls the maximum shared segment size, in bytes +kernel.shmmax = 68719476736 + +# Controls the maximum number of shared memory segments, in pages +kernel.shmall = 4294967296 + +# increase TCP max buffer size settable using setsockopt() +net.core.rmem_max = 16777216 +net.core.wmem_max = 16777216 + +# increase Linux autotuning TCP buffer limit +net.ipv4.tcp_rmem = 4096 87380 16777216 +net.ipv4.tcp_wmem = 4096 65536 16777216 + +# increase the length of the processor input queue +net.core.netdev_max_backlog = 30000 +net.ipv4.tcp_max_syn_backlog = 4096 + +# recommended default congestion control is htcp +net.ipv4.tcp_congestion_control=htcp + +# recommended for hosts with jumbo frames enabled +net.ipv4.tcp_mtu_probing=1 + +# increase client parallel connections +net.ipv4.ip_local_port_range = 15000 61000 +net.ipv4.tcp_fin_timeout=30 + +# fast cycling of sockets in time_wait state and re-using them +net.ipv4.tcp_tw_recycle = 1 +net.ipv4.tcp_tw_reuse = 1 + +# increase the maximum number of requests queued to a listen socket +net.core.somaxconn = 8192 + +# avoid caching tcp network transfer statistics +net.ipv4.route.flush=1 +#end raw +]]> + </file_contents> + <file_owner>root.root</file_owner> + <file_permissions>644</file_permissions> +</file> |