Programmer Group

1. Preparations Close the firewall Close selinux systemctl stop firewalld.service setenforce 0 && getenforce && \cp /etc/selinux/config{,.ori} && grep -q "SELINUX=disabled" /etc/selinux/config || sed -i 's%SELINUX=enforcing%SELINUX=disabled%g' /etc/selinux/config 2.Yum installs Samba packages ...

Mission 23 October 1 0.1 Use w to view system load 10.2 vmstat command 10.3 top command 10.4 sar command 10.5 nload command   View System Load w command # Line 1: Current system time, system start-up time, logged-in users, system load: 1 minute, 5 minutes, 15 minutes [root@centos7 ~]# w 20:54:14 up 5 min, 1 user, load average: ...

Close the firewall systemctl status firewalld systemctl disable firewalld systemctl stop firewalld Systemctl is a system D tool, which is mainly responsible for controlling system D system and service manager. Systemd is a collection of system management daemons, tools, and libraries to replace the initial process of System ...

w/uptime View System Load Cat/proc/cpuinfo View cpu Number Vmstat monitoring system status, usage vmstat 1, key columns: r, b, swpd, si, so, bi, bo, us, wa top Views Process Usage Resources Top-c displays detailed process information Top-bn1 static display of all processes q exits, number 1 shows all core cpu s, capital M sorted by memory usag ...

I. Problem Description Today, after testing encrypted GitLab backup files, decrypting them, and then restoring GitLab, the recovery failed. The following error was reported: tar: db: Unable mkdir: insufficient privilege tar: db: Unable mkdir: insufficient privilege tar: db/database.sql.gz: Unable open: No file or directory ta ...

Deploying the war package to tomcat due to project needs, the start-up time is wrong: 31-Oct-2018 09:11:18.555 information [ContainerBackgroundProcessor[StandardEngine[Catalina]]] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [D:\Program Files\Apache Software Foundation\Tomcat 9.0_Tomcat9.0 ...

The pxe installation server written before forwarding: http://www.attacker.club/article/125 Service list dhcp: Assign IP addresses, specify startup files and tftp service addresses tftp-server: Transfer boot file http: Publish the iso image of CD-ROM pxelinux.0: The startup file of the system pxe is obtained by installing the syslinux packa ...

Mission 25 October 10.11 Linux Network Related 10.12 firewalld and netfilter 10.13 Netfilter 5 Table 5 Chain Introduction 10.14 iptables grammar   Linux network related commands View network card information: ifconfig Installation: Yum install-y net-tools [root@centos7 ~]# ifconfig ens33: flags=4163<UP,BROADCAST,RUNNING,MUL ...