1.selinux/ssh port
2.
有整列卡用这个
Disk Scheduler Selection
cat /sys/block/<block device>/queue/scheduler
echo noop | sudo tee /sys/block/<block device>/queue/schedulerAdding the following lines to your/etc/sysctl.conffile will increase network throughput
net.core.rmem_max=16777216 net.core.wmem_max=16777216 net.ipv4.tcp_rmem=4096 87380 16777216 net.ipv4.tcp_wmem=4096 65536 16777216