sysconfig iptables

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Configure iptables to only allow nfs and ssh services

1. modify the configuration file/etc/services (vi/etc/services) and add it to the row: mountd925/tcp # mountd process (you can change 925 to another available port) mountd925/udp2: modify the iptables configuration file/etc/sysconfig/iptables

Use of iptables extensions

1. in fact, the matching extension also needs to be added to the display extension of the-m reference module. the default value is implicit extension. do not use the-m status Detection Package to filter-mstate -- state {NEW, ESTATBLISHED, INVALID,

Detailed description of iptables extension

1. in fact, the matching extension also needs to be added to the display extension of the-m reference module. the default value is implicit extension. do not use the-m status Detection Package to filter-mstate -- state {NEW, ESTATBLISHED, INVALID,

Troubleshoot issues with Iptables and VSFTPD settings

Troubleshoot issues with Iptables and VSFTPD settingsBlog Category: Linux/centos/ubuntu Firewall J # work solves Iptables and VSFTPD setup issuesModifyVi/etc/sysconfig/iptables-configIptables_modules= "Ip_conntrack_ftp"Iptables-p INPUT

Build a firewall instance using Linux + iptables

Preface Using Linux + iptables as a firewall has high flexibility and stability (dude, my firewall has never been restarted since it was done), but it is troublesome to install and set it, this article aims to use firewall instances for the company

Linux Firewall iptables and linuxiptables

Linux Firewall iptables and linuxiptablesIntroduction to Linux Firewall: first, network packets need to enter your host through the firewall, server software program (Verification account), SELinux and File System (permission rwx, etc. Main firewall

Configure the firewall and nat forwarding service in CentOS

Today, I got a new server, used as a stepping stone, and pasted and copied the previous Code. As a result, there was a problem and I couldn't forward it, Beth was not clear, so I had to find it a little later. First, find the network, No network

Connect to Linux using FileZilla

FileZilla is a free open source FTP software, divided into client version and server version, with all the features of FTP software.  The controllable, structured interface and streamlined way to manage multiple sites makes the FileZilla client

Several ways Linux prohibits access to an IP address

I. Overview These two files are TCPD server configuration files, and TCPD servers can control the access of external IP to native services. The two configuration files are formatted as follows: #服务进程名: Host list: Optional command action when rule

EZDPL Linux Automated Deployment Practice Tutorial

Statement:EZDPL is not out-of-the-box and needs to be customized according to your application environment. It is more difficult and more risky for beginners to use.It's not a generic project, it's more about providing a way to make tedious

Centos6.4 under iptables firewall configuration

Configure the Cento6.4 iptables firewall. 1. View firewall status # Service Iptables StatusOr: #/etc/init.d/iptables StatusDescription: This method can also be manipulated below. 2. Turn off/ turn on/reboot the firewall # service Iptables Stop

What is Iptables?

What is Iptables-general Linux technology-Linux technology and application information? For more information, see. Iptables is a packet filtering management tool based on the netfilter architecture. It is mainly used for firewall or transparent

Firewall iptables settings

A Tomcat is mounted on the server. After specifying the port number, I will start accessing it! The company imposes limits on the RedHat port! Use iptables to view firewall settings: shell code iptables-nl I need a port 8880, it seems that it cannot

How to save the firewall rules of iptables

Save iptablesOfFirewallThe rules are as follows: Solution: The rules created by the iptables command are temporarily stored in the memory. If the system restarts before permanently saving these rules, all the rules will be lost. If you want the

FastDFS5.03 installation Configuration

Fastdfs IntroductionFastdfs is an open source, high performance Distributed File system, his main features include: file storage, synchronization and access, design based on high availability and load balancing, FASTFD is ideal for file-based Web

Iptables firewall option parameter introduction and instance configuration

Five rules of iptables: three rule tables of PREROUTINGFORWARDPOSTROUTINGINPUTOUTPUTiptables: five rule chains are included in three rule tables: filter for packets: INPUT, FORWARD, OUTPUTnat: address Translation: PREROUTING, POSTROUTING, and

Linuxiptables instance configuration

1. configure a filter table firewall (1) to clear the original rules. whether or not you have enabled the firewall when installing linux, if you want to configure your own firewall, clear all the filter rules. [root @ tp ~] # Iptables-F clear the

Basic iptables configuration method

The system is installed by default. if not, run yuminstall-yiptables to start serviceiptablesstart or/etc/init. d/iptablesstart run the following command to view the iptables configuration: iptables-L-n or directly View/etc/sysconfig/iptables-config

CentOS5.xiptables default configuration

When installing the CentOS Operating system, if the firewall (iptables) service is not enabled when you configure the system for the first time, the system will not automatically generate the iptables configuration file. To enable the firewall

Set iptables firewall in CentOS

Set the firewall in Linux. take CentOS as an example to open the iptables configuration file: vi/etc/sysconfig/iptables through/etc/init. d/iptablesstatus command to check whether port 80 is enabled. If no port 80 is enabled, you can use either of

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