I recently used a 115 online storage disk to download something. It was initially a 12 m optical fiber, and the data written to the disk every second was kept around 1 ms. I was so scared to upgrade to 115 m optical fiber two days ago and then open the online storage, the HDD lights on the host are constantly on. Does this product give fsync every time after receiving the buffer? The strace artifact finds that there is no fsync, that is, the cache is disabled when the file is opened.
Recently,
Good news: in linux, the network TV nslive has a graphics client download-Linux general technology-Linux technology and application information. The following is a detailed description. Decompress the package and use the nslive command line version!
: Http://www.newseetv.com/soft/gnslive-0.1.0.tar.gz
Instructions
1. Display the contents of the Demo1 file on the screen via Java.net.URL1 PackageHdfs;2 ImportJava.io.InputStream;3 ImportJava.net.URL;4 Importorg.apache.hadoop.fs.FsUrlStreamHandlerFactory;5 Importorg.apache.hadoop.io.IOUtils;6 7 Public classJardemo {8 Static{9Url.seturlstreamhandlerfactory (Newfsurlstreamhandlerfactory ());Ten } One Public Static voidMain (string[] args) { AInputStream in =NULL; - Try { -in=NewURL (args[0]). OpenStream (); theIoutils.copybytes (in, Syste
Install linux basic Edition Software
The redhat5 Software Package uses Yum management, so you need to connect to the Internet if you need to add software. to install the software from a CD, follow these steps:
1,Attach a cd
Create the directory mkdir/home/demo/rhel5
Mount disk image file Mount-o loop rhel-server-5.4-i386-dvd.iso/home/demo/rhel5
Or use a cdMount/dev/CDROM/home/demo/rhel5
2,YumSet
Ø CD/etc/yum. Repos. d
Add a local. Repo
I reviewed the Linux socket programming, wrote the simplest server and client programs, and passed the test. The server-side programs adopt the loop and busy waiting mechanism, which will be changed to multithreading and thread pool mechanism later.
Server programs
#include
Client Program
#include
Ubuntu14.04 + mutt + msmtp configure the command line mail client in linuxInstall software msmtp mutt
apt-get install -y msmtp mutt
Configure msmtp
After the installation is complete, configure msmtp first. The default configuration file varies with the operating system version and can be viewed through msmtp -- version.
# msmtp --versionmsmtp version 1.4.31Platform: x86_64-pc-linux-gnuTLS/SSL library: GnuT
Linux XMPP server Tigase (Spark client test)
Tigase is an XMPP server developed based on Java. Similar to Openfire, Tigase can be used to build an Instant Messaging (IM) platform.
1. Preparation
Before installing Tigase, you must first prepare the Java Environment and Database (MySQL is used in this article ).
Tigase download: https://projects.tigase.org/projects/tigase-server/files
Download: tigase-server
Related configuration etc. please take a look at an article on server side articles: http://blog.csdn.net/pingd/article/details/478053491.Client Terminal Source code:Openssl_client.c#include 2. Compiling3. Implementationusage:openssl_client [SERVER_IP] [Server_port] Linux OpenSSL programming client side
/tigase.sh Stop Etc/tigase.conf5. Test Tigase server with SparkAfter the server starts successfully, use XMPP client Spark to test the tigase server.Open Spark, register a new user, the server is the host name or IP address of the Tigase server, and the--virt-hosts configuration item in Etc/init.properties is consistent.Once the creation is successful, you can log in directly.Open another spark, create another user and log in, add contacts, and chat w
Related configuration, etc. please see an article about server side articles: http://blog.csdn.net/pingd/article/details/478053491.Client Terminal Source:Openssl_client.c#include 2. Compiling3. Runningusage:openssl_client [SERVER_IP] [Server_port] Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Linux OpenSSL programming
Setting up Samba server and using client in Linux
I am just a beginner in Linux. I have encountered many problems during Samba configuration, and the online tutorials are not quite complete. Therefore, I will write a complete article here for your convenience.
1. First, find the smb-related service programs in the Add/delete software library. Generally, they are
FTP library, written in C by Thomas pfau
The detailed API (HTML) and description (readme. ftplib_v3.1) are provided, which can be used in both Windows and Linux environments. The RFC 959 file of the FTP protocol is also attached.
Download Page:
Http://nbpfaus.net /~ Pfau/ftplib/
Ftplib
Ftplib is a set of routines that implement the FTP protocol. They allow applications to create and access remote files through function callinstead of needing to f
) this.width=650; "Width=" 1108 "height=" 323 "title=" 7.png "style=" Width:734px;height:190px;float:none; "src=" http ://s3.51cto.com/wyfs02/m02/49/4b/wkiom1qsqphrmzmtaahbokslfwk286.jpg "alt=" wkiom1qsqphrmzmtaahbokslfwk286.jpg "/ >When you return to the hosts interface, you see that the Z icon has turned green to indicate a successful monitoring.650) this.width=650; "Width=" "height=" 494 "title=" 8.png "style=" Width:736px;height:280px;float:none; "src=" http ://s3.51cto.com/wyfs02/m00/49/4b/
SVN Linux usesSVN Linux Client Update
[Root@ds svn]# SVN co svn://10.10.233.19/web1//svn/--username=mark1--password=mark1Chinese character error can be modified:
Export Lc_ctype= "en_US. UTF-8 "Export lc_all=List and view:
[Root@ds ~]# svn list svn://10.10.233.19/web1/--username=mark1--password=mark1--verbose2 Mark June 14 01:17./1 Mark 3 June 00:56 New Text D
Label: Download Zabbix installation package (Zabbix installation package contains ZABBIX_AGENTD client installation package, we only select ZABBIX_AGENTD Client installation)Zbbix Official website: http://www.zabbix.com/downloadClient actionsTips: Linux Software compilation installation requires two installation packages gcc gcc-c++ make can be installed online u
Symptom:
You cannot log on from a common user on a Linux machine. It takes a long time to log on and cannot log on,
When you manually mount the/home directory of the NIS server, the following error occurs:
Do_ypcall: clnt_call: RPC: unable to send;Errno = network is unreachable do_ypcall
Check and find that this machine is an NIS client machine.
Solution:
Start services related to the NIS server.
/Etc/init.
Linux XMPP server Tigase (Spark client test), xmpptigase
Tigase is an XMPP server developed based on Java. Similar to Openfire, Tigase can be used to build an Instant Messaging (IM) platform.
1. Preparation
Before installing Tigase, you must first prepareJava environmentAndDatabase (MySQL is used in this article).
Tigase download: https://projects.tigase.org/projects/tigase-server/files
Download:Tigase-ser
Bypy-Python client of Baidu cloud/Baidu Network Disk
: Https://github.com/houtianze/bypy
Copyright 2013 Hou Tianze (GitHub: houtianze, Twitter: @ ibic, G ++: + TianzeHou)
This is a Python client of Baidu cloud/Baidu Network Disk. The main purpose is to use 2 TB of Baidu cloud disk in Linux (command line. For example, you can use it on the Raspberry Pi. It provide
Using mutt + msmtp as the linux Mail Client these days, the leaders asked me to deploy a script written by the Development Department, and sent the attachment generated by the script to his mailbox via email. Let's get started, because the mail command has been used to send emails, but this time it won't work. Because the attachment is required. Someone told me that the mail command can contain attachments,
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