Linux

The following log contents appear for each connection failure when Rehl (619 error) occurs when the PPTP VPN server connection is set up to view the system log [Cat/var/log/messages |grep pptpd]: Gre:read (fd=6,buffer=80504c0,len=8196) from PTY

Today engineering side of the brother feedback a problem, LVM partition after the installation completed reboot found unable to mount and identify, host environment for SLSE11 SP3. By viewing and processing, the results are now recorded. First,

reproduced from: http://blog.csdn.net/brucexu1978/article/details/7721313 Linux process status (PS stat) R, S, D, T, Z, X March 11, 2012 Posted by Jian PS Progress Status: process state codesPROCESS State Codes Here are the different values of

ulimit command to view and change system limits ulimit Command Detailed Ulimit the resources used by the shell startup process to set system limits Syntax format Ulimit [-ACDFHLMNPSSTVW] [size] Defined in the/etc/security/limits.conf fileLimit.

"This article was written on July 5, 2018"TESS4J is the tesseract Java JNA wrapper. This article describes the steps and considerations for using tess4j in the CentOS 7 operating system. Before the official start, take a bit of space and give a

I. Iostat and iowait detailed commentary-View disk bottlenecks one, Iostat basics%iowait does not respond to disk bottlenecks1, installation IostatIostat's bag is called Sysstat.Yum Install sysstat- y2, iowait the actual measurement is CPU time:

#define _IO (TYPE,NR) _ioc (_ioc_none, (Type), (NR), 0)#define _ior (type,nr,size) _ioc (_ioc_read, (Type), (NR), (_ioc_typecheck (size)))#define _IOW (type,nr,size) _ioc (_ioc_write, (Type), (NR), (_ioc_typecheck (size)))#define _IOWR (type,nr,size)

version has redhat Enterprise Linux (RHEL) 5.4/5.5/5.8/6.0/6.3 iso image file:RHEL 5.4 iso downloadHttp://rhel.ieesee.net/uingei/rhel-server-5.4-i386-dvd.isoHttp://rhel.ieesee.net/uingei/rhel-server-5.4-x86_64-dvd.isoRHEL 5.5 iso

First, installed under UbuntuThis does not have to be installed, the system is well supported.System->administration->hardware DriversChoose the Broadcom STA wireless driverActivateIf you do not have this option, execute it in the shell:sudo apt-get

First, socketIn general, the socket has an alias called a socket.Sockets originate from UNIX and can be manipulated using "open open–> read-write write/read–> close" mode. Socket is an implementation of this pattern, the socket is a special kind of

Proc/pid/maps shows the memory regions and access rights mapped by the process. The operation set in the corresponding kernel is proc_pid_maps_op, and the specific export function is Show_map. A segment of the process's address space in the kernel

Reference:1. Common Linux processes and kernel threads2. management and scheduling of the Kthreadd--linux process for Linux under process 2nd (vii)Kthreadd: This kernel thread has only one function, which is to manage the dispatch of other kernel

Iperf is a network performance testing tool. The Iperf can test for maximum TCP and UDP bandwidth performance. The Iperf has a variety of parameters and UDP features that can be adjusted as needed. Iperf can report bandwidth, delay jitter, and

Recently, using BusyBox to customize a very simple root filesystem for arm-based boards, because BusyBox only supports telnet and does not support SSH, this article describes in detail how to cross-compile dropbear and port it to a target board to

I. Mounting storage mediaThe Linux file system incorporates all the disks into a single virtual directory, which needs to be placed in the virtual directory before the new storage media is used, which is called mount (mounting)　　1.1 Mount CommandThe

I have not been able to understand the two cross-compiler exactly what the problem, deliberately Google, summed up as follows, hoping to help the road and I have the same confused brother .... I. What is ABI and Eabi1) ABI: Binary Application

Document directory 1. the system that uses keepalived for Hot Backup requires a virtual IP address. However, Which machine the virtual IP address belongs to depends on the master and backup of the hot backup group, therefore, when the host

1. Install Reverse Proxy Server1. Download the reverse proxy server software using squid ,: Http://www.squid-cache.org/Versions/v2/2.2/squid-2.2.STABLE5-src.tar.gz The downloaded file is stored in the/usr/local/squid/src directory. The file name

Shell script example: calculate the time difference in milliseconds and microseconds, and shell microseconds You can use the time command to calculate the execution duration of a command. Although the time command can be precise to milliseconds, the

QSV usage in FFMPEG (windows)INDEIn Windows, Intel Media SDK in INDE is usually used instead of MMS, because the latter is only available in Linux and Windows Server.INDE can be downloaded for free. It is recommended that you download its offline