You have learned how to list and delete UFW firewall rules. When configuring a firewall always allow only those incoming connections that are necessary for the proper functioning of your system. If you have questions, feel free to leave a comment below. firewall...
3. firewalld:firewalld是CentOS和Red Hat Enterprise Linux中的防火墙管理工具。它起初使用了iptables,但现已切换到nftables。以下是一些firewalld的常用命令: –`firewall-cmd –state`:显示防火墙状态; –`firewall-cmd –permanent`:永久生效的命令; –`firewall-cmd –reload`:重新加载防火墙规则; –`firewal...
firewall-cmd --new-zone=myzone ---permanent #创建后需要重启firewalld firewall-cmd --reload #删除zone #删除myzone firewall-cmd --delete-zone=myzone --permanent firewall-cmd --reload #查看可用的zone firewall-cmd --get-zones #查看zone的默认区 firewall-cmd --get-default-zone #修改zone...
This article explains how to add iptables firewall rules using the “iptables -A” (append) command. “-A” is for append. If it makes it easier for you to remember “-A” as add-rule (instead of append-rule), it is OK. But, keep in mind that “-A” adds the rule at the en...
To view a summary of the rules defined for UFW on your Server, just call the command: sudo ufw status numbered This command shows the list of rules created for your firewall, each identified by a unique number. To delete a rule, just use thedeletecommand. ...
Deny a specific port on UFW: sudo ufw deny 80 Allow SSH traffic on UFW: sudo ufw allow ssh Delete a rule on UFW: sudo ufw delete allow 80 Enable logging for UFW: sudo ufw logging on Conclusion In this article, we covered the basics of managingFirewalldandUFWinmodern Linux distributions...
firewall-cmd --zone=public --remove-port=100-500/tcp --permanent firewall-cmd --reload 三、开放或限制IP 1、限制IP地址访问 (1)比如限制IP为192.168.0.200的地址禁止访问80端口即禁止访问机器 firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.0.200" port prot...
Before you delete all firewall rules, back up the rules. Run the following commands to back up firewall rules: touch [$Iptables] iptables-save > [$Iptables] Note Replace the[$Iptables]variable with the actual directory in which you want to save the firewall rule backup file. ...
或者运行systemctl restart firewalld,重启firewalld服务也可以。可见,一个zone对应一个xml格式的配置文件,如果觉得命令麻烦的话,直接修改这个配置文件,然后reload或者重启服务也可以。 2.5. 关于rich rule富规则 你也许想说,配置这么多zone好麻烦啊。我现在的需求很简单,就只想对一台机器全部放开,但是不想配置这么多...
阻止特定IP通过防火墙 firewall-cmd --add-rich-rule="rule family='ipv4' source address='192.168.1.3' reject" 阻止特定的IP段通过防火墙firewall-cmd --add-rich-rule="rule family='ipv4' source address='192.168.1.0/24' reject"