Step 7: Allow Port Ranges UFW also can allow access to port ranges instead of allowing access to a single port. When you want to allow port ranges at the UFW port, you need to specify the range of the port and the protocol, either TCP or UDP. For example, if you want to allow th...
5. Toallow access to a port range, specify the range values and the protocol type (TCPorUDP). For instance, the following command allows connections from ports 2000 to 2004 for TCP: sudo ufw allow 2000:2004/tcp Change the protocol to allow connections from ports 2000 to 2004 for UDP wit...
防火墙是一种通过基于一组用户定义的规则过滤传入和传出网络流量来提供网络安全性的系统。通常，防火墙的...
假如是 DNS 服务,可以用下面的命令来允许外部网络访问所有发布出来的 DNS 服务:ufw route allow proto udp from any to any port 53同样,如果只针对一个特定的容器,比如 IP 地址为 172.17.0.2:ufw route allow proto udp from any to 172.17.0.2
Status: active Numbered rule list: Rule number Action From To Proto Port Range 1 ALLOW IN Any Any tcp 22 22 2 ALLOW IN Any Any tcp 80 80 3 ALLOW IN Any Any tcp 22 (v6) 22 (v6) 4 ALLOW IN Any Any tcp 80 (v6) 80 (v6) 4. 查看特定规则的详细信息 如果你想要查看特定端口或IP...
例,iptables -t filter -I OUTPUT -d 192.168.1.146 -p udp -m multiport --sports 137,138 -j REJECT; iprange:该模块支持--src-range、--dst-range匹配条件,允许指定一段连续的IP地址范围。 例,iptables -t filter -A INPUT -m iprange --src-range192.168.1.1-192.168.1.10 -j DROP; ...
sudo ufw allow from 87.197.5.125 to any port 22 To enable a range of ports, defining the type of communication (TCP or UDP), the command to execute respects the following syntax: sudo ufw allow start_port:end_port/tcp sudo ufw allow start_port:end_port/udp ...
Ufw Allow Subnet Range Of Ip Addresses The first IP address in this subnet which includes the IP 10.1.1.151 is 10.1.1.144. Allowing or Denying Connections on Specific Network Interfaces With personal computers, the number of network interfaces is going to be limited. You would have one ethernet...
sudo ufw allow 5001:5010/tcp sudo ufw allow 5001:5010/udp Allowing traffic on 5001:5010 port range Run the below command instead if you prefer to allow SSH connections from a specific IP address. The command allows SSH connections (port 22) only from the 192.168.1.2 IP address. sudo ufw...
ufw delete allow 21/tcp Allowing Connections from Specific IP addresses and Port Ranges We can also allow connections from a specific IP address with the following command: ufw allow 192.168.10.100 We can use a subnet mask to widen the range: ...