Linux

Moved to: http://www.wypblog.com/archives/172 A temporary file is a file temporarily used to store data. If you use the method of creating a common file to create a file, you may encounter the problem of whether the file exists and whether the

V0.2, a required tool for viewing adult video in Linux Hedgehog @ http://blog.csdn.net/littlehedgehog The upgraded version is released so quickly. It is not because the previous version has too many bugs. The main reason is that the last

Solution for Linux system not responding to Syn packets The question about why SYN didn't respond is really depressing for a long time.When the client sends a SYN packet, the server does not respond to the SYN Packet of the client.After going

Some time ago, the library files provided by the other party were used in the project, but they were never used at the beginning. After reading many blogs on the Internet, the summary was published here. The next article will post a question about

2012.10.24 According to the introduction to Gcc on ubuntu wiki, We are initially familiar with Gcc usage. Compilation of a single file, capture errors, and compilation of multiple files. And easy to use Makefile. An error occurred while connecting

I have been developing a Linux C language for a while, and I have summarized some experiences here. I believe that people who do not know Linux programming will gradually step into the Linux Hall. You are welcome to discuss any errors or

# Use loop Modprobe cryptoloop Dd if =/dev/zero of =./partition_file0 bs = 1 k count = 1024 Losetup-e aes/dev/loop0./partition_file0 # partion_file0 is not required. You can directly use the/dev/sd * partition. Mkfs. ext3/dev/loop0

Today, I saw Baidu know someone asked me how to detect stack overflow. I started with curiosity and checked it. I found that there is a powerful library libsigsegv on linux, it can detect Stack Overflow (maybe implemented by signal ). I tested it.

[System status] OS => | operating system running status (thread queue, TCP/IP status ...) ------------------------------------------- Hardware => | Hardware working status (CPU, memory, disk, Nic ...)   Vmstat, iostat, sar, pidstat... all source

Signal is a mechanism used in Linux to communicate with each other or operate on processes. Signal is a widely used topic. Here, we only discuss several of the most important signals and techniques for using signal control processes.A signal is a

The message consists of a 12-byte header and four variable-length fields.IdentifierThe field is set by the client program and the server returns the result. 16-bitFlagThe fields are as follows: QR: 0 indicates the query message, and 1 indicates the

The UDP datagram format consists of the header and data. The header is very simple, 8 bytes in total. Including:◆ Source Port: 2 bytes, Source Port number.◆ Destination Port: 2 bytes. Destination Port number.◆ Length: 2 bytes. The total Length of

Copy from http://blog.csdn.net/chenglian_999/article/details/4785720 In the past, when I was reading about Linux principles, I always encountered kernel stacks and user stacks. Today, I have taken a look at the use of the stack in Linux separately.

  Hi, MM! Hedgehog @ http://blog.csdn.net/littlehedgehog             I can understand a piece of kernel code, but I am not quite sure what the code will do in Linux. Many Linux kernel beginners may feel deeply about it. This is actually a stumbling

Write. IMG files in Linux Hedgehog @ http://blog.csdn.net/littlehedgehog         Next we will use bximage to create a floppy disk image. (Of course, you can also use other tools, such as the VPC on windows platform) $ Bximage=========================

  The procedure is as follows: 1. Upload apache-tomcat-6.0.24.tar.gz and jdk-6u13-linux-i586.bin to/usr/local   Add executable permissions to these two files   # Chmod + x apache-tomcat-6.0.24.tar.gz jdk-6u13-linux-i586.bin 2. Run the following

2013.08.23 updated Concept 1: The shared library is called a dynamic library. In Linux, the executable file or dynamic library in ELF format has two fields: DT_RPATH and DT_RUNPATH (this is added to the new version ). // This method is only

Uninstalling linux is easy to think of formatting linux partitions. However, we basically use dual systems and use grub to guide the system. Once the linux boot partition is deleted, the system cannot start (if you do not believe it ). Grub exists

# Include "dma. h" /* How to use:** Call the specified DMA channel for the request_dma request. If the return value is 0, the channel is available;* Use free_dma to release the channel after use.*/   /* Dma_chan_busy [n]! = 0 indicates that the

Refer to "inter-process communication in Linux environment". This article explains why linux pipelines can only communicate between parent and child processes, because the parent process first establishes a pipeline, after the fork () function is