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- Centos 7 backup and restore Redis data
- What is Redis? Redis is an in-memory key-value cache and store (i.e. database) that can also be persisted to disk. In this article, you will learn how to back up and restore your redis database on Centos7. Backup and Restore Instructions By default, Redis data will be saved to a .rdb file on disk, which is a point-in-time snapshot of the Redis data set. Snapshots are taken at specified intervals, so are perfect for backups. Data Backup In Centos7 and other Linux distributions, the default Redis database directory is /var/lib/redis. However, if you have changed the redis storage location, you can find it by typing: [
- LINUX 526 2024-09-02 14:02:32
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- Linux's love-hate relationship with ping packages
- By default, Linux systems allow ping, but in some cases, for security reasons, we set the server to disable ping. To temporarily allow the ping command, you can use the command: echo0>/proc/sys/net/ipv4/icmp_ignore_all. :0, represents permission; 1, represents prohibition of viewing the current settings: 0, for which we can ping and try using the ping command - t can continuously allow or prohibit ping. Modify the configuration file /etc/sysctl.conf and add a line as shown above. net.ipv4.icmp_echo_ignore_all=11 means prohibited.
- LINUX 939 2024-09-02 14:01:10
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- Centos7 add delete Swap exchange partitions
- Swap means: swap partition, similar to Windows virtual memory, but when the physical memory is insufficient, part of the hard disk space is used as virtual memory, thereby solving the problem of insufficient physical memory capacity. Advantages: cost savings. Disadvantages: Inadequate performance. This method is not limited to Centos7 and can be used on all Linux systems. Operating user: root. Add swap partition space. Use the dd command to create the swap partition file /dev/mapper/centos-swap, with a size of 2G: $ddif=/dev/zeroof=/dev/mapper/centos-swapbs=1024count=2048000. Format the swap partition. :
- LINUX 737 2024-09-02 13:50:43
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- Centos 7 smoothly and seamlessly upgrades PHP7.1.0 to PHP 7.1.5
- Experimental environment: CentOS Linux release 7.3.1611 (Core) Kernel version: Linux version 3.10.0-514.el7.x86_641. There are two ways to check the PHP version, and the display results are the same. The first one #/usr/local/php/bin/php-v The second one #php-vPHP7.1.0(cli)(built:Dec17201617:00:32)(ZTS)Copyright(c)1997-2016ThePHPGroupZendEnginev3.1.0- dev,Copyright(c)1998-201
- LINUX 1216 2024-09-02 13:43:20
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- A brief introduction to common modules of ansible
- This article introduces commonly used modules. According to the official classification, the modules are classified by function into: cloud module, command module, database module, file module, asset module, message module, monitoring module, network module, notification module, package management module, source code control module, system module, Unit module, web facility module, windows module, please refer to the official page for details. Here we select some of the most commonly used modules from the officially classified modules for introduction (the commands module has been introduced in the previous article and will not be mentioned here). 1. The ping module tests whether the host is accessible. The usage is very simple and does not involve parameters: [root@361way~]#ansible10.212.52.252-mping10
- LINUX 479 2024-09-02 13:36:00
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- 6 Ways Progress Bars Lie to You
- Progress bars are a necessary evil. After all, we need some sort of feedback to know how much of a job is left until the computer is done. However, in most cases, the simple progress bar hides many deceptions, but maybe these are actually for our own
- Windows Series 489 2024-08-26 21:33:01
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- Paint.NET 5.1 Beta Adds Robust Color Management
- Every good image editing tool needs color management support. When you’re working with an image, you want to make sure it looks exactly within the app as it did in the camera or as the original creator wanted it to look. The color space of the sour
- Windows Series 708 2024-08-26 12:45:32
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- Google Will Start Preloading Windows PCs With Google Essentials
- Essentials can be quickly launched from the Start menu on Windows. It gives you access to Google’s entire library of games that run natively on desktop and Android devices (Angry Birds 2, Clash of Clans, and Asphalt Legends to name a few). You can
- Windows Series 605 2024-08-26 12:38:04
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- Dell Inspiron 14 Plus (7441) Laptop Review: A Basic Introduction for Snapdragon Newbies
- The Dell Inspiron 14 Plus (7441) laptop is on the cusp of innovative PC tech. Its Snapdragon X Series processor makes it one of the few Microsoft Co-Pilot+ PCs available, and AI-integrated features set it apart. That said, snappy processing and Co-Pi
- Windows Series 371 2024-08-25 12:32:32
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- How to Fix a Missing NVIDIA Control Panel in Windows 11 and 10
- The NVIDIA Control Panel is essential for fine-tuning graphics settings, optimizing game performance, and adjusting display configurations. However, if you can't find it on your Windows PC all of a sudden, here are some tips that will help yo
- Windows Series 803 2024-08-25 06:41:11
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- Microsoft Is Bringing Recall Back to Windows 11
- Recall was one of the AI-powered features created for Copilot+ PCs, giving you a visual history of everything on your PC accessible with a timeline and search box. For example, if you can’t remember where you saw an important message or product, yo
- Windows Series 541 2024-08-25 06:32:02
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- How to enable cross-device sharing in Windows 10
- How to turn on cross-device sharing in win10? There are still system resources used by many people in win10. How to turn on cross-device sharing during use? Many users still don’t know where this function is. For this reason, the editor has compiled the details According to the tutorial, you can easily open the modified function. Interested friends can read it and learn more. Tutorial on how to open cross-device sharing in win10 1. Open the settings function in the menu in the lower left corner. 2. Click System Options on the Windows Settings page. 3. Click the drop-down menu on the left to find the experience sharing option and click on it. 4. In the window page that opens, you can see a cross-device sharing function on the right side. Click it below to open it.
- Windows Series 546 2024-08-24 15:30:39
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- Introduction to Ansible Dynamic Inventory
- AnsibleInventory actually consists of two parts: static Inventory and dynamic Inventory. Static Inventory refers to the hosts and groups specified in the file /etc/ansible/hosts. DynamicInventory refers to obtaining the host list through an external script and returning it in the format required by ansible. To ansilbe command. This part generally combines the CMDB asset management system, zabbix monitoring system, crobble installation system, cloud computing platform, etc. to obtain host information. Since host resources generally increase or decrease dynamically, these systems generally update intelligently. We can use these tools to provide a
- LINUX 880 2024-08-24 10:44:02
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- 7 ways to help you check the registration date of Linux users
- Did you know, how to check the creation date of an account on a Linux system? If you know, what can you do? Did you succeed? If yes, how to do it? Basically Linux systems don't track this information, so what are the alternative ways to get this information? You may ask why am I checking this? Yes, there are situations where you may need to review this information and it will be helpful to you at that time. You can use the following 7 methods to verify. Use /var/log/secure Use aureport tool Use .bash_logout Use chage command Use useradd command Use passwd command Use last command Method 1: Use /var/l
- LINUX 796 2024-08-24 07:31:32
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- Summary of ansible usage: ansible installation
- 1. Introduction Ansible is a configuration management and application deployment tool. Its functions are similar to the current industry configuration management tools Chef, Puppet, and Saltstack. Ansible is developed through Python language. The Ansible platform was created by Michael DeHaan, who is also the author of the well-known software Cobbler and Func. The first version of Ansible was released in February 2012. Ansible manages machines through the SSH protocol by default, so Ansible does not need to install a client program on the server. You only need to install Ansible on a server. After Ansible is installed, you can manage and control it.
- LINUX 994 2024-08-24 07:31:14
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