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Improve sysctl settings

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- Fix kernel.shmmax and kernel.shmall on 32-bit Linux. Thanks @komanshidaruma!
- Clean up other sysctl settings
This commit is contained in:
hwdsl2 2017-10-28 15:40:24 -05:00
parent 68a6375399
commit 05c2cb911b
2 changed files with 26 additions and 22 deletions
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24
vpnsetup.sh
View File

@ -335,30 +335,32 @@ bigecho "Updating sysctl settings..."
if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then
conf_bk "/etc/sysctl.conf"
if [ "$(getconf LONG_BIT)" = "64" ]; then
SHM_MAX=68719476736
SHM_ALL=4294967296
else
SHM_MAX=4294967295
SHM_ALL=268435456
fi
cat >> /etc/sysctl.conf <<EOF
# Added by hwdsl2 VPN script
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
kernel.shmmax = $SHM_MAX
kernel.shmall = $SHM_ALL
net.ipv4.ip_forward = 1
net.ipv4.tcp_syncookies = 1
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.lo.send_redirects = 0
net.ipv4.conf.$NET_IFACE.send_redirects = 0
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.lo.rp_filter = 0
net.ipv4.conf.$NET_IFACE.send_redirects = 0
net.ipv4.conf.$NET_IFACE.rp_filter = 0
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.core.wmem_max = 12582912
net.core.rmem_max = 12582912

24
vpnsetup_centos.sh
View File

@ -321,30 +321,32 @@ bigecho "Updating sysctl settings..."
if ! grep -qs "hwdsl2 VPN script" /etc/sysctl.conf; then
conf_bk "/etc/sysctl.conf"
if [ "$(getconf LONG_BIT)" = "64" ]; then
SHM_MAX=68719476736
SHM_ALL=4294967296
else
SHM_MAX=4294967295
SHM_ALL=268435456
fi
cat >> /etc/sysctl.conf <<EOF
# Added by hwdsl2 VPN script
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
kernel.shmmax = $SHM_MAX
kernel.shmall = $SHM_ALL
net.ipv4.ip_forward = 1
net.ipv4.tcp_syncookies = 1
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.lo.send_redirects = 0
net.ipv4.conf.$NET_IFACE.send_redirects = 0
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.lo.rp_filter = 0
net.ipv4.conf.$NET_IFACE.send_redirects = 0
net.ipv4.conf.$NET_IFACE.rp_filter = 0
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.core.wmem_max = 12582912
net.core.rmem_max = 12582912