Programmer Group

preparation in advance Execute yum update openssh to upgrade first. The official upgrade is okay anyway.If you have previously manually compiled an upgrade of openssh, test yourself for changes to the default profile path.) (Unified openssh version 7.4p1 is prepared here before Unified Compile Installation is upgraded to openssh 8.2p1) [root@n ...

In the early morning, I received alert text messages from Ali cloud server.Emergency security incident: access malicious download source, access malicious download IP.Instant wake up, immediately get up to handle. First log in to Aliyun backstage, check the security center's warning mascot, found several records: Parent process path: /usr/bin ...

catalog 1, Environment 2, Installation procedure 3, Use 4, 500 problem solving 1, Environment linux: centos7 docker:18.06.3-ce gitlab: twang2218/gitlab-ce-zh(Sinicized GitLab Community Edition) 2, Installation procedure To configure the image accelerator (skip this step if you have already configured it), open the / etc/docker/daemon.j ...

When using Python to write some scripts, in some cases, we need to log in to the remote service frequently to execute a command and return some results. In a shell environment, this is what we do. $ sshpass -p ${passwd} ssh -p ${port} -l ${user} -o StrictHostKeyChecking=no xx.xx.xx.xx "ls -l" Then you will find that your output has a lot of ...

rsync+lsyncd to realize real-time file synchronization yum -y install rsyncd (both the synchronized end and the synchronized end need to be installed) 1. Provide lsyncd installation source rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm 1 2 2. Dependency of installing lsyncd from yum yum -y install ...

mq cluster construction I haven't written these technical articles for a while. I'll spare some time to write them today, or I'll forget them This article records the process of building rocketmq cluster, and it's also a half day's achievement record! Interested friends like to go! Well, there's not much bullshit. Let's start. This article i ...

Implementation effect of this blog: combined with maven+gitlab, you can use Jenkins to implement version iterative update and version rollback operations for tomcat servers in different environments (test and online environments). After deployment, you only need to click a few times. 1, Environmental preparation system IP host name Running s ...

Make a record to avoid forgetting. Don't spray) Type 1: Ping the ip in a file. If you can ping up, if you can't Ping down #! /bin/bash for ip in `cat iplist` do ping=`ping -c 1 $ip|grep loss|awk '{print $8}'|awk -F "%" '{print $1}'` if [ $ping -eq 100 ];then echo $ip is down else echo $ip is up fi done Explain: f ...

A new WeChat official account has been applied for. 1. Apply for the account of wechat public platform, and then apply for Tencent cloud recommended by him to do demo 2. After applying for centos host, get the public ip and password. After ssh login, follow the demo prompt 3. Install web.py. wget -c http://webpy.o ...

I haven't written a blog for a long time. Although I haven't written a few articles, I'm still active in the Internet industry... Needless to say, it's useless. Let's share how to synchronize Git services.Git service we usually use gitlab rake tool to do regular backup. When there is a problem, we can use backup recovery. Is there a need for a ...