Linux server configuration and management series - resolve dependency violation - yum rollback

How to solve the damage of package dependency Solution of package dependency destruction How to solve the damage of package dependency background Error reporting Solutions step The development of rollback method of yum 1. Background Today, I'm going to build a DNS server. Why do I report an error whe ...

Posted on Tue, 05 May 2020 09:59:21 -0700 by lucasmontan

[Redis] CentOS7 installation and configuration of Redis database

Step 1, Download Download with wget command wget http://download.redis.io/releases/redis-4.0.9.tar.gz Step 2: install and compile decompression tar -zxvf Then enter the redis path and use the make When compiling, some errors may occur, such as: cd src && make all make[1]: Entering directory /u ...

Posted on Sat, 04 Apr 2020 09:38:34 -0700 by JJ123

Redis Cluster Set Up Complete Process Demo

Preface This article is intended to locally simulate the process of building a redis server cluster. What is the role of a Redis cluster? Before experimenting with deployment, we need to understand why we need to set up a Redis cluster and what problems did it solve?What are the advantages?We can explore this issue from a single Redis server. ...

Posted on Tue, 24 Mar 2020 09:57:31 -0700 by jlh3590

Hicjack prctl for linux kernel pwn learning

Hijack prctl Prctl is a function of linux, which can make some settings for processes and threads. In prctl, the corresponding functions are called through virtual tables. If we hijack the virtual tables of prctl to point to other kernel functions that are helpful to us, such as the call ﹣ usermode ...

Posted on Thu, 05 Mar 2020 22:50:48 -0800 by Traduim

Oracle 12c version 2 installation steps - pure combat

Oracle 12c version 2 installation steps Experimental environment: Centos 7 Experiment preparation: one virtual machine, hard disk * 2 I. preliminary preparation Partition a new hard disk and format it [root@localhost ~]# fdisk /dev/sdb ##Step ellipsis . . . . . . [root@localhost ~]# mkfs.xfs /dev/sdb1 Auto mount [root@localhost ~]# mkdir /orc ...

Posted on Sat, 14 Dec 2019 11:09:25 -0800 by fiona

Solve the problem that the log time cannot be modified (Local time zone must be set--see zic manual page 2019)

Fault phenomenon The system log time is 8 hours late, for example, it's 12 noon, and the log time is 4 a.m Local time zone must be set--see zic manual page Solution (failed) Modify / etc/profile export TZ='Asia/Shanghai' Invalid. The date command displays normally, but the date command in the script still reports an error, and the ...

Posted on Wed, 27 Nov 2019 14:14:31 -0800 by Emma

kubernetes practice: internal dns domain name resolution server

Operating system: Ubuntu 16.04 Server IP: 172.18.1.12 1. Install bind9 apt install bind9 -y 2. Configuration resolution file Enter / etc/bind directory and open named.conf.local // // Do any local configuration here // // Consider adding the 1918 zones here, if they are not used in your // organization //include "/etc/bind/zones.rfc1918"; // ...

Posted on Wed, 30 Oct 2019 22:33:13 -0700 by AliceG

The compression function and cache time of apache Web page optimization

Apache Web page optimization Optimization overview Compression optimization To configure Apache's web page compression function, we use gzip compression algorithm to compress the web page content and then transfer it to the client browser. First, share the shared directory of the host computer to Linux [root@localhost ~]# smbclient -L //1 ...

Posted on Thu, 24 Oct 2019 21:10:24 -0700 by bjdouros

arm_linux Cross Compiler Development Environment - gcc 4.8.2

1. Environment linux 16.04 2. Required source files  binutils-2.23.1.tar.bz2  glibc-2.18.tar.gz  gcc-4.8.2.tar.bz2  gmp-5.1.3.tar.bz2  mpfr-3.1.2.tar.bz2  mpc-1.0.1.tar.gz  linux-2.6.34.14.tar.bz2 3. Setting environmental variables export SRCDIR=~/workbench/gcc-4.8.2/xtools/src export BUILD ...

Posted on Mon, 12 Aug 2019 02:56:35 -0700 by Lillefix

Oracle Silent Installation 11gr2 has been verified and can be installed directly

Operating System and Oracle Versionlinux version: SUSE Linux Enterprise Server 11 (x86_64)Oracle version: Release 11.2.0.3.0  1. Check whether the dependency packages are installed successfully. If the installation is not successful, please install it.rpm -q binutils compat-libstdc++-33 elfutils-libelf elfutils-libelf-devel gcc gcc-c++ gli ...

Posted on Sat, 06 Jul 2019 19:55:35 -0700 by LuckyLucy