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CentOS7 Docker CE online installation

Docker CE supports the 64-bit version of CentOS 7, and requires the kernel version to be at least 3.10. CentOS 7 meets the minimum kernel requirements, but due to the relatively low kernel version, some functions (such as overlay2 storage layer driver) cannot be used, and some functions may not be stable

Docker 2021-08-11 0 likes 0 comments 4128 views

tar package compression and decompression

The Linux tar (English full spelling: tape archive) command is used to back up files. tar is a tool program used to create and restore backup files. It can add and unlock files in the backup file

Linux 2021-10-14 0 likes 0 comments 4173 views

Use scp to transfer files between Linux devices

Suppose you have a file that needs to be removed from the server, or you want to put it on the server. It would be a bit redundant to set up some form of FTP client, or configure a share to handle this small task

Linux 2021-09-14 0 likes 0 comments 4212 views

CentOS 6.8 YUM configuration Alibaba Cloud source

Have you encountered using yum to install software as slow as a turtle? The default system uses centos mirror source, we can modify it to accelerate the domestic mirror source

Linux 2021-08-19 2 likes 0 comments 4415 views

CentOS 6.x installation gcc-c++ conflict resolution with the original version

Package gcc-c++.i686 0:4.4.7-11.el6 will be installed, Package gcc-c++.i686 0:4.4.7-11.el6 will be installed...

Linux 2021-08-19 0 likes 0 comments 4599 views

How to choose a server system: CentOS, Ubuntu, Debian

These versions have different characteristics and play different roles in different application fields, so they cannot be generalized. And most VPS only provide release versions maintained by the open source community

Site Related 2021-09-30 0 likes 0 comments 4636 views

TCPing port connection debugging tool

In general, the IP of our Ping server is only the delay obtained by the ICMP protocol transmission, and some IDCs will optimize the ICMP delay very well. In fact, it is exposed by testing with TCPing.

Linux 2021-08-25 0 likes 0 comments 4844 views

CentOS7 install update security patch

System administrators usually only care about the security update part of the system when upgrading the system, and the upgrade of pure software version does not need to be rooted, because upgrading them may cause unpredictable problems. We only install the security update part of the system update.

Linux 2021-09-12 0 likes 0 comments 4943 views

【Docker + Selinux】 Can't Open / Permission denied

The main solution is how to configure `docker` security in the environment where `selinux` is turned on, as well as common error solutions. It is not blindly `chmod -R 777`,`--privileged=true`,`setenforce 0` , But focus on using the `selinux` security strategy

Docker 2021-09-26 0 likes 0 comments 5114 views

How does Linux determine whether Crontab is running normally?

In the process of our development, we often encounter situations where scheduled tasks are not executed as expected. In the Linux system, timing tasks are generally implemented by the system Crontab. This article discusses how to judge whether the Crontab is running normally.

Linux 2023-06-07 0 likes 0 comments 6082 views