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What is Kickstart Installations? Kickstart Installations for unattended automatic installation Kickstart files, which are ready before installation, can be used to automatically perform the installation. It can be saved on a single server system and supports one to many: that is, a single file installs CentOS on multiple computers All Kickst ...

I. iptables 1) Check the status of the firewall The firewall service name in centos7 is firewalld, no longer iptables [root@localhost ~]# systemctl status firewalld firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled) Active: active (running) since One 2017-12 ...

In the privatization platform, ntp server needs to be deployed. Because it is two physical servers, in order to avoid single point problem, two ntp servers need to be deployed here. Other clients in the same network segment need to calibrate and synchronize the clock with these two servers through ntp service. Since it is a private platform, o ...

Before, nginx+tomcat cluster configuration was a simple polling mechanism upstream servers{ #server 172.25.67.29:9091 weight=1 max_fails=1 fail_timeout=50; server 172.25.67.29:9091; server 172.25.67.27:9091; server 172.25.67.27:8380; } As shown above. In this way, it's OK to restart one of the t ...

iptables rule persistence Set firewall rules iptables -A INPUT -s 1.1.1.1/32 -p tcp -m tcp --dport 22 -j DROP iptables -A INPUT -s 2.2.2.2/32 -p tcp -m tcp --dport 22 -j DROP iptables -A INPUT -s 3.3.3.3/32 -p tcp -m tcp --dport 22 -j DROP iptables -A INPUT -s 4.4.4.4/32 -p tcp -m tcp --dport 22 -j DROP Save firewall rules service iptabl ...

1, Install redis 1. Download redis installation package Go to the official website http://redis.io , you can also use the wget command cd /usr/local/soft/ wget http://download.redis.io/releases/redis-4.0.6.tar.gz 2. Unzip tar xzf redis-4.0.6.tar.gz 3. Compile and install cd redis-4.0.6 make 2, Remote access ...

1, Configure firewall and open the port required by FTP service Turn off the firewall of the system #Stop firewall [root@localhost ~]# systemctl stop firewalld.service #Disable startup of firewall [root@localhost ~]# systemctl disable firewalld.service Install iptables firewall #install [root@localhost ~]# yum in ...

Using the command line tool MiniUPnP client Installation method: Download the source code here and compile it as follows: make sudo checkinstall This way, you can uninstall it later. usage method: Usage : upnpc [options] -a ip port external_port protocol [duration] Add port redirection upnpc [ ...

The Laravel team yesterday released v7.7.0, which includes container supported constructors supporting variable parameters, some new HTTP client functions, Blueprint's new rawIndex() method and all the latest functions in the 7.x branch. Repair and change: HTTP client GET request support array Daniel Mason contributed to the HTTP client's suppo ...

Note: This article is not an original article, which is transferred from the following: View and setup of Selinux 1. Check SELinux status 1.1 getenforce The getenforce command is a combination of the words get (get) and enforceto view the selinux status, as opposed to the setenforce command. The setenforce command is a combination of th ...