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[server configuration] System version # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic Official documents: https://rsync.samba.org/documentation.html install sudo apt install rsync xinetd Modify or add in / etc/default/rsync file RSYNC_ENABLE=inetd Create th ...

Sketch The Linux system used in this article is Ubuntu 16.04 and JDK is 1.8.0_. JDK Download JDK 1.8.0? Download link: https://pan.baidu.com/s/1AgiZ5DHnJjCVxBKPzdCddw Extraction code: v1ud Linux installing Java Create a folder in / usr/local / directory and upload the downloaded JDK through Xftp tool (if there is no Xftp ...

Preface: After learning the basic knowledge of python, let's write a simple case of crawler, which uses urllib and re library. The reptile principle of this case: First of all, we use urllib library to simulate the behavior of browser visiting website, and get the source code (html tag) of corresponding webpage from the give ...

Repository secrets are used to store passwords, secret keys, tokens and other confidential information.repository secrets can be configured in the setting interface of the warehouse Usage: kind: pipeline name: default steps: - name: build image: alpine environment: USERNAME: from_secret: docker_username PASSWORD: from_ ...

0. Intro BCC is a set of performance analysis tools based on ebpf of 4.x kernel; eBCC, as the name implies, is the abbreviation of extended BCC. It is the extension of the BCC project by Alibaba kernel team on Aliyun Linux, including the existing tool set of BCC itself and some small tools newly developed by us. eBCC is based on the extension o ...

Preface: In the previous article, we used the urlib and re libraries of python to complete the introduction case of crawler However, because regular expressions are difficult to master, we use a third-party library: beautiful soup to intercept the content of the web page text One, download and install beautiful soup If p ...

Note that since the supervisor cannot monitor the background program, all commands executed by the command need to be executed in the foreground, such as nginx: command = /usr/local/bin/nginx -g 'daemon off;' Talk about the benefits of this tool:Manage your process, terminate the automatic restart service process abnormallyTurn off the machine ...

The server environment is CentOS 6.8, and Python is the default version 2.6.6 1. Upgrade python Upgrade python2.6.6 to python2.7.14, which will not be described herePlease refer to the following documents for upgrading:https://blog.csdn.net/see_you_see_me/article/details/78550977 2.Python makes pip command unavailable Upgrading Python 2.7 resu ...

Preceding text ROS robot chassis (3) - Communication Protocol Defined PIBOT This protocol is simple and not related to ROS, and can be extended at the same time. In this paper, we use python to realize a transceiver, which can be used in windows or linux at the same time 1. dataHolder python struct package It can be used to pac ...

We all know that when CGO is not involved, cross-compilation of Go s is very simple and requires only the corresponding GOOS and GOARCH to be set, but when CGO is involved, the problem becomes a bit complicated because you need to specify a specific GCC. For example, if you want to cross-compile a dynamic library with CGO on Ubuntu and the tar ...