To open ports on Ubuntu, we will use an uncomplicated firewall (UFW), which is an Uncomplicated Firewall tool that provides proxy settings in different systems. Many Linux systems come with the pre-installed firewall but in case of Ubuntu it will be required to install. You can installUFWo...
How to Check TCP/UDP Open Ports use Powershell and PortQuery TCP UDP ports Test-NetConnection PortQuery 原创 ganzy 2023-07-06 16:18:20 3464阅读 Python socket侦听多个端口python socket keepalive Python实现WebSocket服务器(心跳检查、进程通信)心跳检查进程通信WebSocket完整代码参考文档 心跳检查websocket适...
count=0if[ -n"$udpport"];thenforportin$udpportdoforiin`cat/tmp/dangersudpports.dat`doudpport=`echo$i| awk -F"[:]"'{print $1}'` desc=`echo$i| awk -F"[:]"'{print $2}'` process=`echo$i| awk -F"[:]"'{print $3}'`if[$udpport==$port];thenecho"$udpport,$desc,$pro...
我是这样做的! 1、Centos防火墙相关 开启防火墙 systemctl start firewalld.service 放行指定端口 firewall-cmd --zone=public --add-port=端口号/tcp --permanent 比如我要放行80,443 重启防火墙 systemctl restart firewalld.service 查看所有端口号 firewall-cmd --list-ports 或 netstat -ntlp #此命令如果...
Check UFW Status To check UFW status and show detailed information, run the following command: sudo ufw status verbose The output shows the status, default settings, and open ports. Working with UFW Rules UFW is a rule-based firewall. The rules define the extent of communication the server ...
Ubuntu 20.04 LTS Server for NanoPi R2S - Mainline Kernel 5.7.y / 5.8.y / 5.9.y / 5.10.y - avafinger/nanopi-r2s-ubuntu-server-minimal-image
他修改包的目标IP地址来发送包到机器自身(本地生成的包被安置为地址 127.0.0.1),包含一个选项: --to-ports <port>[<port>]:指定使用的目的端口或端口范围:不指定的话,目 标端口不会被修改。只能用于指定了-p tcp或者-p udp的规则。 3) 包过滤设置举例:假如有这样一个局域网,内部IP地址范围192.168.1.1-...
To disable all outbound host ports, use the value none. The default value opens etcd''s standard ports to ensure that Felix does not get cut off from etcd as well as allowing DHCP and DNS. [Default: tcp:179, tcp:2379, tcp:2380, tcp:6443, tcp:6666, tcp:6667, udp:53, udp:67]'...
/sbin/iptables -A INPUT -p udp --dport 32767 -m state --state NEW -j ACCEPT # Open ports for NSF end The bold numbers in the firewall rules must agree with the numbers you chose above in section 1 and 2. You can edit these numbers to your liking, but there are some kind of ...
nat -A SHADOWSOCKS -p tcp -j REDIRECT --to-ports 12345 # Add any UDP rules ip rule add fwmark 0x01/0x01 table 100 ip route add local 0.0.0.0/0 dev lo table 100 iptables -t mangle -A SHADOWSOCKS -p udp --dport 53 -j TPROXY --on-port 12345 --tproxy-mark 0x01/0x01 # ...