Using the yum command in the centos system is indeed a pleasant task, but there are also various problems in some cases.
One we met today is very tricky.
Yum install XXX. rpm
Warning:
Package XXX. rpm is not signed
Google, the solution is1. Modify yum. conf
Path:/etc/yum. conf
Find gpgcheck = 1
Change it to 0: gpgcheck = 0
2. Modify/etc/yum. Repos. d/utterramblings. repo.
Find gpgcheck = 1
Change it to 0: gpgcheck = 0
However, after these
normally and has been pushed for millions every day. It has not encountered any problems after several months of stable operation.However, there are still a large number of resources not recycled in the jmap process. In addition, full gc blocking has recently occurred, resulting in restart events. (Another reason may be that all nodes are pushed to a foreign machine, and the memory is very low, only 512 M -.-)For this evaluation, I generally know that when there are many pushes, there will be a
one.
However, the above method is only valid for the current user. To make the entire computer available, you need to copy it to the/library/quicklook directory. Of course, after copying, the user of this file needs to be changed. The following is a termina command sample.
Sudo chown-r root: admin/library/quicklook/suspicious \ package. qlgenerator
Use
It is very simple. If it is a PKG installer file, press the Space ke
table package.loaded and Package.preload with the original module name "Mod.sub" as the key, where the points in the module name do not have any meaning when searching. However, when searching for a file that defines a child module, require converts the point to another character, usually the system's directory separator, after which require searches for the name as if it were a different name. For example, the path is the following string:
Copy Code code as follows:
?;?. lua;c
Tools/raw Materials
Eclipse, Tomcat methods/Steps
Open Eclipse on the left right click on the project name select Export
In the Export screen click "Web"-> "WAR file" click "Next"
Click "Browse ..." to select a file's export location, Target runtime run environment Select Tomcat Version Click Finsh
By the end of this war package, the resulting directory structure is as follows
Put the generated war file in the Tomcat installation direc
Linux notes: linux software package management, linux software package
Introduction to linux software packageSoftware Package category:1. source code package (source code written in C language is not compiled ):Script installation package (source
Document directory
1. RPM stands for Red Hat Package Manager (Red Hat Package Manager)
2. Yum stands for Yellow Dog Updater, modified
3. Deb
4. APT (theadvanced packaging tool)
1. The suffix is .tar.gz?tar.z=tar.bz2 or. tgz.
2. Installation File ending with Bin
3. uncompiled RPM package installation
The software installation under the Windows GUI is gu
A package is an attribute of Oracle Pl/sql, which is like a container or a namespace that combines a variety of logically related types, constants, variables, exceptions, and subroutines. Provides a good organizational unit when writing large, complex applications for developers.
Once the package has been defined, the application can access a variety of functional units through the packet, without worrying
noun explanation
Package properties: In the Androidmanifest.xml file.
Package Name: The application's bundle name.
Application ID: The ApplicationID property under the module Defaultconfig block.
Set Application IDEach Android application has a unique application ID like the Java package name, such as Com.example.myapp. On Android devices an
Package Diagram introduction and common operations of package diagram in rational
Package chart Introduction
1. Definition: group model elements and provide a namespace for the elements in the group.
2. role: it is easy to understand complex systems and control the connections between various parts of the system structure. Logically, you can modularize a complex
Using relative package import in Python sometimes is a very painful thing, sometimes using the relative package import clearly can be in operation, but changed a way of operation is not possible. This article is going to solve this problem in depth, in the process of looking at the code to continue to practice, understand Python relative package import.This artic
Use the Setup Factory installation package creation tool to create the installation package, setupfactory
After we develop the software, in addition to a few cases, we copy the entire directory to the customer, we generally need to make the installation package to facilitate the deployment of the entire software, to deploy an installation
Android Make jar package:To create a new Android project, then right click, click Export, select the export type of the jar file under Java, do not select the Androidmanifest.xml and res folder in Java file specification. Otherwise, the error generating final archive:found duplicate file for Apk:androidmanifes will appear when the jar package is called.If you call the jar package on Android, you will need t
Linux software package management, linux software package
Linux software package management
There are two main types of Linux software package management: Binary Package management and source code package management.
Install-- I
Easyradius 1.6 was released two weeks ago. The new 1.6 version mainly updates the billing package, supports user package binding and preferential package usage, and adds cabinet binding.
It may be easy to understand how to bind a cabinet. For example, if a user is in area 1-Cabinet 1, you can bind the recharge card to the cabinet so that the recharge card is pro
Node. js package details, Node. js package details
In Node. in js language, packages and modules are not essentially different. packages are further abstracted Based on modules. Packages encapsulate an independent function, it is used for release, update, dependency management, and version control. Node. js implements the package mechanism according to CommonJS s
AIX package principles and Linux RPM packages
I. AIX package principle1. Principle2. File Set (Fileset) naming rulesFileset This naming format basically describes the content and hierarchy of this set of files, which makes it easy for administrators to view and manage3. Version number of the file set (Fileset)Versions and release version numbers are upgraded to require purchase, and upgrades to the followi
Sencha Study Notes 2: package your first Sencha Android app apk installation package, senchaapk
We have a preliminary impression on sencha through the introduction in the previous translation official Article. At the same time, we also generated the first sample application code framework through this wizard, many people may think that the next step should be based on the detailed information prompted by th
Android OTA update package preparation and androidota update package
0. Signature
Java-Xmx2048m-jar out/host/linux-x86/framework/signapk. jar-w build/target/product/security/testkey. x509.pem build/target/product/security/testkey. pk8
This key is automatically generated in debug mode.
You can also create your own private key through openssl
The generated key is automatically used to sign the OTA update
In linux, the RPM Package obtained from the tar package is just completed from a tar package to the RPM Package. record the following process to avoid forgetting. Www.2cto.com manually uses the tar package as an RPM Package. we ne
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