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- How to check the port in centos7 system
- The method to check the ports on the centos7 system is: 1. Execute the [firewall-cmd --zone=public --list-ports] command to view all open ports on the firewall; 2. Execute the [netstat -lnpt] command to view the listening ports.
- CentOS 7516 2020-03-16 19:20:32
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- How to check centos version
- Methods to check the centos version: 1. uname -a; 2. uname -r; 3. cat /etc/redhat-release; 4. cat /proc/version; 5. cat /etc/issue; 6. In the system-settings -See details.
- CentOS 3800 2020-03-16 17:31:40
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- Centos7 system startup process
- The startup process of the centos7 system is: 1. Power on self-test; 2. Select the boot device; 3. Boot loader; 4. Load the configuration file; 5. Load the kernel; 6. Kernel initialization; 7. Prepare the operating system; 8. systemd Services required to execute graphical.
- CentOS 2874 2020-03-16 17:20:07
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- The centos7 system cannot find the network card
- The solution to the problem that the centos7 system cannot find the network card is: 1. First, check the UUID information of the network card; 2. Then, check the MAC address of the network card; 3. Then, re-modify the configuration file; 4. Finally, restart the network card.
- CentOS 9531 2020-03-16 16:07:26
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- How to install mysql on centos7 system
- The method to install mysql on centos7 system is: 1. Install [yum repo]; 2. Enter the [/etc/yum.repos.d/] directory; 3. Execute the [yum install mysql-server] command to install it.
- CentOS 2647 2020-03-16 15:52:30
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- Centos7 system network is blocked
- The solution to the centos7 system network failure is: 1. Execute the [vi /etc/sysconfig/network-scripts/ifcfg-ens33] command to enter the network configuration; 2. Then, modify the configuration [ONBOOT=yes]; 3. Finally, restart Just a network card.
- CentOS 3276 2020-03-16 15:41:02
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- centos7 system cannot access tomcat
- The solution to the problem that the centos7 system cannot access tomcat is: 1. Enable the firewall service; 2. Open the 8080 port; 3. Execute the [firewall-cmd --reload] command to restart the firewall; 4. Finally, verify whether the 8080 port is effective.
- CentOS 2152 2020-03-16 15:18:39
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- Centos7 system cannot use yum command
- The solution to the problem that the yum command cannot be used in the centos7 system is: 1. First, switch to the root user; 2. Then, switch to the directory of the network card configuration file and open the network card configuration file; 3. Finally, modify the configuration [ONBOOT=yes] .
- CentOS 4604 2020-03-16 14:56:58
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- The centos7 system cannot ping the external network
- The solution to the problem that the centos7 system cannot ping the external network is: 1. First, execute the [vim /etc/resolv.conf] command to add DNS; 2. Then, execute the [route add default gw 192.168.11.1] command to add a route. Can.
- CentOS 4441 2020-03-16 14:45:41
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- Centos7 system cannot automatically obtain IP address through dhcp
- The solution to the problem that the centos7 system cannot automatically obtain the IP address through dhcp is: 1. First, open the ifcfg-nes33 configuration file and modify the configuration [ONBOOT=yes]; 2. Then, execute the [service network restart] command.
- CentOS 4765 2020-03-16 14:37:13
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- The difference between centos6 and 7
- The difference between centos6 and 7 is: 1. centos6 uses INIT technology to start the process, and centos7 uses systemd technology to start the process; 2. centos7 uses the ip command instead of ipconfig; 3. centos7 has a new hostname management tool hostnamectl.
- CentOS 5306 2020-03-16 14:28:19
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- How to install gcc in centos6.5 system
- The method to install gcc on centos6.5 system is: 1. First, execute the su command, enter the password, and become the root user; 2. Then, execute the yum command to install gcc online, such as [yum install gcc].
- CentOS 5694 2020-03-16 14:19:50
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- Centos6.5 system cannot access the Internet
- The method to solve the problem of centos6.5 system being unable to access the Internet is: 1. First, ensure that the network connection is working in NAT mode; 2. Then, modify the DNS address in the resolv.conf file; 3. Then, modify the virtual machine network configuration; 4. Finally, restart the network service.
- CentOS 3798 2020-03-16 11:53:25
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- The centos6.5 system cannot ping the external network
- The solution to the problem that the centos6.5 system cannot ping the external network is: 1. First, check the network card settings to ensure that the IP address and GATEWAY are in the same network segment; 2. Then, check whether the routing and firewall settings are correct; 3. Finally, set dns server is enough.
- CentOS 4032 2020-03-16 11:38:34
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- What to do if Chinese garbled characters appear in centos6 system
- The solution to Chinese garbled characters in the centos6 system is to modify the default character set configuration to the Chinese character set, such as [LANG="zh_CN.GBK" SUPPORTED="zh_CN.UTF-8:zh_CN:zh"].
- CentOS 3301 2020-03-16 11:29:23
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