记录下几个命令
然后 慢慢学习一下 得记住这些 神奇的 命令 然后 后面慢慢补文档
iptables
当 vps
无公网时 可用内网任意一台上网
https://support.huaweicloud.com/usermanual-ecs/ecs_03_0705.html
这些命令 都在 可上网的机器上操作
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| iptables -t nat -A POSTROUTING -o eth0 -s 172.16.1.0/24 -j SNAT --to 172.16.1.9 iptables -t nat -D POSTROUTING -o eth0 -s 172.16.1.0/24 -j SNAT --to 172.16.1.9
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查看 nat
设置规则
保存 iptables
规则
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| apt-get install iptables-persistent Usage: /usr/sbin/netfilter-persistent (start|stop|restart|reload|flush|save)
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文件查看
tail
vi
复制 yy
粘贴 p
设置 hostname
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| hostnamectl set-hostname name
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/etc/sysctl.conf
https://oneinstack.com/
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| fs.file-max = 1000000 fs.inotify.max_user_instances = 8192 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_fin_timeout = 30 net.ipv4.tcp_tw_reuse = 1 net.ipv4.ip_local_port_range = 1024 65000 net.ipv4.tcp_max_syn_backlog = 16384 net.ipv4.tcp_max_tw_buckets = 6000 net.ipv4.route.gc_timeout = 100 net.ipv4.tcp_syn_retries = 1 net.ipv4.tcp_synack_retries = 1 net.core.somaxconn = 32768 net.core.netdev_max_backlog = 32768 net.ipv4.tcp_timestamps = 0 net.ipv4.tcp_max_orphans = 32768
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