In the/etc directory, perform the following operations:
(1) CD/etc
VI exports
/Home * (sync, RW, no_root_squash)/OPT * (sync, RW, no_root_squash)
(2) Restart NFS
Service NFS restart
Note: firewall settings. If system error: No route to
Introduction to network data collection and analysis tool tcpdump
As the name suggests, tcpdump can completely intercept the "Header" of the packets transmitted in the network for analysis. It supports filtering network layer, protocol, host,
What is Oops? From a linguistic perspective, oops should be a anthropomorphic word. After a minor accident or an embarrassing task, you can say "oops". translated into Chinese, it is called "". "Sorry, sorry, I didn't mean to break your cup ".
Compile a C System in Linux, including the lexical and syntax analysis modules. in Linux, use bison and flex.YACC is a generator of grammar analyzer. Bison is the GNU version of YACC. lex and YACC are tools used to construct lexical analyzer and
After collecting and sorting out the relevant Linux killing process materials, I would like to recommend this article to you here. I hope you will see a lot of gains in the future.
1. Kill Purpose: kill a process based on the process number.Usage:
Linux script syntax basics:
Start with 1The program must start with the following line (must begin with the first line of the file ):#! /Bin/shSymbol #! The parameter used to tell the system that the program is used to execute the file. In this
I. Overview
System calling is a way for applications to interact with the kernel. As an interface, system calls allow applications to enter the operating system kernel to use various resources provided by the kernel, such as operating hardware,
I have been working on some open-source projects in Linux in the last week. In fact, I have been playing a hard job a long time ago. This time I encountered some problems when compiling the program again, so I will record it here.
1. When the C ++
I recently used the broadcast program in network programming. I found it online and can test it in person.
Client:
1 # include 2 # include 3 # include 4 # include 5 # include 6 # include 7 8 9 int main (void) 10 {11 struct sockaddr_in all; 12
Perhaps most of those who are used to programming in advanced languages will ignore the specific process of function calling. If they want to know this process, they will have to start with assembly, but the assembly language is obscure. Here is a
The first time you install software in Linux.As a person who has never used Linux for a few days, it is also a harvest to learn how to install software on Linux. The general steps for installing a .tar.gz file are as follows (find the file,
1. The READ function reads data from open devices or files.
# Include Ssize_t read (int fd, void * Buf, size_t count );Returned value: the number of bytes read successfully. If an error is returned,-1 is returned and errno is set. If the value has
Print the LS command man help file: man ls | LPR
LPR solution lift (SELF: http://linux.chinaitlab.com/command/11571.html)
Name: LPR Permission: All Users Usage: LPR [-P printer]The printer manager LPD sends an archive or device to the printer
Signal Value action comment-------------------------------------------------------------------------Sighup 1 Term hangup detected on controlling TerminalOr death of Controlling ProcessSIGINT 2 term interrupt from keyboardSigquit 3 core quit from
Basic information of "Linux high-performance Server programming" by: youshuang Publishing House: Machinery Industry Publishing House ISBN: 9787111425199 mounting Date: June 2013 published on: 16: 1-1 category: computer> operating system> Linux more
Usr1 is also usually used to inform the application to reload the configuration file. For example, sending a usr1 signal to the Apache HTTP Server will lead to the following steps: stop accepting new connections and wait until the current connection
In the previous two articles, we introduced two types of thread synchronization objects: mutex and read/write lock in Linux. These two types of thread synchronization objects are used to protect specific resources (memory, file handle, etc. If a
Cut is a selection command, which is to analyze a piece of data and retrieve what we want. In general, the selection information is usually analyzed for "rows", not the entire information analysis.
(1) The syntax format is:Cut [-BN] or cut [-C] or
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