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  • What is the difference between the commands of centos7 and 6?
    What is the difference between the commands of centos7 and 6?
    Differences: 1. centos7 uses systemd instead of init; 2. To modify the host name, centos6 needs to modify "/etc/sysconfig/network", while 7 needs to modify "/etc/hostname"; 3. centos7 uses the chrony command to synchronize time, and 6 uses ntp .
    CentOS 3425 2022-03-07 15:53:31
  • What types of firewalls are there in centos?
    What types of firewalls are there in centos?
    The firewalls in centos include: 1. iptables, which is a packet filtering firewall on the Linux platform; 2. firewalld, which is a firewall with both a command line terminal and a graphical interface; 3. ebtables, which is an Ethernet bridge firewall.
    CentOS 5673 2022-03-03 18:41:27
  • How to check how many cores the CPU has in centos7
    How to check how many cores the CPU has in centos7
    How to check the number of cores of the CPU in centos7: 1. Log in to the CentOS server and open the terminal; 2. In the terminal window, execute the "cat /proc/cpuinfo | grep "cores"|uniq" command and check the output results.
    CentOS 20119 2022-03-03 18:36:15
  • How to check the number of bits of the system in centos
    How to check the number of bits of the system in centos
    Viewing method: 1. Use the "getconf LONG_BIT" command; 2. Use the "getconf WORD_BIT" command; 3. Use the "file /bin/ls" command. If "32-bit" appears in the output information, it means 32-bit. "64-bit" means 64 bits.
    CentOS 5959 2022-03-03 18:20:03
  • What command can you use to check the version number on centos?
    What command can you use to check the version number on centos?
    Command to check the version number: 1. "cat /etc/issue" or "cat /etc/redhat-release", which can output the centos version number; 2. "cat /proc/version", "uname -a" or "uname -r" to output the kernel version number.
    CentOS 66993 2023-02-27 15:10:42
  • what is centos xen
    what is centos xen
    In centos, Xen is an open source virtual machine monitor. It is an open source virtualization technology based on the , multiple virtual machines can be safely executed on a set of physical hardware.
    CentOS 1884 2022-03-03 18:00:12
  • What is centos7 yum
    What is centos7 yum
    In centos7, the full name of yum is "Yellowdog update Modified", which is a Shell front-end package manager in Fedora, RedHat and SUSE. Yum is based on RPM package management and can automatically download and install RPM packages from designated servers.
    CentOS 4961 2022-03-03 17:52:25
  • Where to choose language in centos
    Where to choose language in centos
    In centos, you can select the language in "Applications", the path is "Applications-System Tools-Settings-Region & Language-Language", select the specified language, and the language setting will take effect after restarting the system.
    CentOS 4120 2022-02-22 16:39:53
  • How to check how many CPUs there are in centos7
    How to check how many CPUs there are in centos7
    Method: 1. Use "grep 'physical id'/proc/cpuinfo|sort-u|wc-l" command to check the physical number of CPU; 2. Use "grep 'core id'/proc/cpuinfo|sort-u|wc" -l" command to view the number of CPU cores.
    CentOS 8624 2022-02-22 16:22:35
  • What is the difference between ubuntu and centos commands
    What is the difference between ubuntu and centos commands
    Differences: 1. Centos uses the "service httpd" command to start and shut down the service, and ubuntu uses the "/etc/init.d/apache" command to start and shut down the service; 2. Centos uses the "yum upgrade" command to upgrade the system, and ubuntu uses "atp-get". Command upgrade.
    CentOS 12495 2022-02-22 16:13:37
  • What does udp mean in centos
    What does udp mean in centos
    In centos, udp is the abbreviation of "User Datagram Protocol", which means User Datagram Protocol. It is a connectionless transport layer protocol in the open system interconnection reference model, providing simple and unreliable transaction-oriented information transmission services.
    CentOS 2286 2022-02-22 16:02:42
  • What is the difference between centos mini version and official version?
    What is the difference between centos mini version and official version?
    The difference between the centos mini version and the official version: the official version contains a large number of commonly used software, and in most cases does not require online downloading during installation, and is larger in size; the mini version only contains core components, and many software needs to be downloaded online and is larger in size smaller.
    CentOS 7716 2022-02-22 15:53:10
  • How to check if the port is open in centos
    How to check if the port is open in centos
    Method: 1. Use the telnet command, the syntax is "telnet ip port"; 2. Use the nc command, the syntax is "telnet ip port"; 3. Use the firewall command, the syntax is "firewall-cmd --query-port=port/ tcp".
    CentOS 22152 2022-02-22 15:42:48
  • What system is centos 6.5 64-bit?
    What system is centos 6.5 64-bit?
    The 64-bit version of centos6.5 is a Linux server system that is one of the Linux distributions; this system is compiled from the source code released by "Red Hat Enterprise Linux" in accordance with the open source code regulations. It has all the functions of RHEL and has High degree of stability.
    CentOS 2948 2022-02-22 15:32:07
  • How to check the php installation directory in centos7
    How to check the php installation directory in centos7
    How to view the PHP installation directory in centos7: 1. Use the whereis command to view, this command is used to find files, the syntax is "whereis php"; 2. Use the find command to view, this command is used to find files in the specified directory, the syntax is "find/-name php*".
    CentOS 4906 2022-02-22 10:36:18

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