Linux

To debug a program that is already running Under UNIX, use PS to see the PID (Process ID) of the running program, and then use the GDB PID format to hook up the running program. First, using GDB to correlate

Three time parameters for a file under Linux(1) Modification Time (mtime): Content modifiedThe modification time here refers to the content of the text changes, and the time of the update.Eg: Save the file after VI. (2) Status Time (CTime): status

Using the software: quotaOperating system: Ubuntu 12.04_x86_64For partitions: Users under/homeFirst, install the quota# Apt-get Install-y QuotaSecond, configure disk quota partitionConfigure the device catalog to support the appropriate quota#

Your own example:-A input-s 192.168.28.68-p tcp--dport 1000-j ACCEPT172.168.XX.XX in the Internal network open 1000 this portIn any case, iptables is a need for special care to set up something, in the event that the server is not around you, and

Ext.: http://jiekeyang.blog.51cto.com/11144634/1774473I. System performance Analysis1. The performance of the system refers to the effectiveness, stability and responsiveness of the operating system to complete the task . The complete task of the

-Atime, Mtime, CTime in LinuxI. atime, Mtime, CTime in the document1. Meaning and display method of various event markersatime: The last time the file was accessed was atime with the LS -lu Viewmtime: Last file content modification time, with LS -l

For programmers, mastering some basic Linux commands is essential, even if not available today, and should be used in the near future. Because Linux has a lot of commands, each command can basically be introduced in an article, so this article only

I. Introduction of CACTI monitoring software1. Cacti is a PHP language implementation of a software, its main function is to use the SNMP service to obtain data, and then use RRDtool to store and update data, when the user needs to view the data

IntroductionAwk is a powerful text analysis tool, with the search for grep and the editing of SED, which is especially powerful when it comes to analyzing data and generating reports. To put it simply, awk reads the file line-by-row, using spaces as

This problem is actually I met a few months ago, but it seems to be still in memory of what, the heart of Shanghai, has not fully adapted to the new environment, plus this problem is not too abstruse problem, feel too simple, put on hold. I came to

(0) The Turnel of GRE1. This process is the process of establishing turnel on both sides.(1) LAN routing process1, host A to send a source of 192.168.1.2, the purpose of 10.1.1.2 package(2) Packaging process1, depending on the internal network, may

1, using wget crawl siteFor example, I want to crawl all the contents of www.isi.edu/nsnam/ns/tutorial, then enterWget-r-p-np-k-E http://www.isi.edu/nsnam/ns/tutorialThen wget will crawl all the content in the www.isi.edu/nsnam/ns/tutorial and store

(. pb.h:9:42:fatal error:google/protobuf/stubs/common.h:no such file or directoryLook at this, you should know that the header file is not found, then you can use the-i parameter of g++:-i/usr/local/lib/protobuf/include to command g++ to find the

1./proc DirectoryThe Linux kernel provides a mechanism for accessing kernel internal data structures and changing kernel settings at run time through the/proc file system. The proc file system is a pseudo-file system that only exists in memory and

Linux uses static libraries and dynamic libraries(a) The concept of the libraryLibraries are reusable code, and libraries are often used in large projects.In essence , a library is a binary form of executable code that can be loaded into memory by

0: The recent major network disk has been stopped, so they are wondering whether to build a private cloud, so hemp will not have to worry about the network disk is disabled.OwnCloud is a free open source software for sharing files, calendars,

Let's start with a well-written kernel driver module to experience the following character device driversYou can temporarily ignore the following code implementation!Memdev.c#include #include #include #include #include int dev1_registers[5];int

I. Daemon processDaemons, also known as the wizard (Daemon) process, as the name implies, the Guardian is always there, it is running in the background of a special process, independent of the control terminal and periodically perform certain tasks

Install SMPlayer 16.4 open source player in Ubuntu The latest version of free open-source Media Player SMPlayer is 16.4. It has a built-in decoder that allows you to play almost all video and audio formats in Linux and Windows. It does not require

The Ubuntu user name is not in the sudoers file and will be reported. A new account www.bkjia.com is created. A message is displayed when sudo is executed today: [Sudo] password for www.bkjia.com:Www.bkjia.com is not in the sudoers file. The