Windows

Yesterday, my colleague encountered a hadoop fault. After looking for a long time, I did not see the problem. When asked about the problem, it took me a while to solve it. It is estimated that this was the final fault I solved for the storm cluster,

The above describes how to support VLAN in VMware ESXi. You can also configure a virtual switch in Hyper-V to support VLAN. This article still uses the experiment topology of-1, but only one physical network card is configured in Hyper-V to connect

In many cases, we need to use a Socket to send a specific TCP request to a specific port of the server to detect services enabled by a specified port of the server. Many languages have corresponding methods to meet the above requirements. Of course,

First, we do not recommend that you use it when you are new to the LNMP environment. Official Website: http://lnmp.org It is easy to install and supports nginx/apache/ftp/php/mysql What is an LNMP one-key installation package? The one-click

1. Create a script/usr/local/webserver/nginx/sbin/cut_nginx_log.sh.Vi/usr/local/webserver/nginx/sbin/cut_nginx_log.sh Enter reference #! /Bin/bash # This script run at 00:00 # The Nginx logs path Logs_path = "/usr/local/webserver/nginx/logs

Vi/etc/sysctl. confAdd the following content at the end: Reference # AddNet. ipv4.tcp _ max_syn_backlog = 65536Net. core. netdev_max_backlog = 32768Net. core. somaxconn = 32768Net. core. wmem_default = 8388608Net. core. rmem_default = 8388608Net.

1. After modifying the/usr/local/webserver/nginx/conf/nginx. conf configuration file, run the following command to check whether the configuration file is correct:/Usr/local/webserver/nginx/sbin/nginx-t If the following two lines of information are

The software cmake is required for mysql version 5.5 and later compilation and installation. The cmake feature is independent from the source code compilation. The compilation can be performed in another directory instead of the source code

# Use the-c option to regenerate the file specified by the option [Root @ localhost conf] # htpasswd-c htpasswd. user aaa New password: Re-type new password: Adding password for user aaa [Root @ localhost conf] # cat htpasswd. user Aaa: Bb5sDJ18YXP .

1. General format: telnet smtp.126.com 25 helo justtestauth loginbGl1amluMjIyODMxOUAxMj***bGowMjAyLC4***mail from:rcpt to:datato:dsfrom:mesubject:test

Hello everyone, the last time I briefly talked about the use of the process. This time I will explain in detail the content of the process and the introduction of advanced permissions. By the way, I like to share and be happy, that is, to make

Nfs is a file system. When the system space is insufficient, you can use it to mount the system partition on the network. ftp is certainly familiar to everyone. Would you like to know more details? Nfs Network File System) Configuration

Hello everyone, this time I will introduce you to the liunx system startup process, including what scripts are started, what is the role, and I hope you can take a good look at the problem if the system is faulty and fix it as needed. Startup

How can I ensure the status of a server? How can we ensure various information? The Nagios monitoring software can be used to monitor server information. I declare that all blog posts are recorded by myself and there is no plagiarism Nagios

I. Common Storage Architecture 1. DAS Storage Architecture Connect a storage device directly to a computer through the SCSI interface or fiber channel. 2. NAS Storage Architecture NAS includes storage devices such as hard drive arrays, CD or DVD

(1) install the required software and build the environment: # yum-y install httpd tftp-server dhcp system-config-kickstart mount the CD file, copy the software required for installing other machines to/var/www/html: Be sure to put it in the Apache

My experiment: Summary of temporary privilege escalation for general Domain Users) 1. Temporarily escalate permissions. A. General users install software released by administrators, such as zap ). B. Security settings that can be completed only

Delete the entire RAID: Mdadm/dev/md0 -- fail/dev/sdb -- remove/dev/sdbMdadm/dev/md0 -- fail/dev/sdc -- remove/dev/sdcMdadm/dev/md0 -- fail/dev/sdc -- remove/dev/sddMdadm/dev/md0 -- fail/dev/sde -- remove/dev/sdeMdadm/dev/md0 -- fail/dev/sdf --

Customer report: the Attention indicator on the front panel of the server is yellow. 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/0511412951-0.png "title =" Capture. PNG "alt =" 175011666.png"/> Fault Locating:

1. When configuring dhcp relay on a vswitch, You need to configure the IP address of the dhcp server to each interface, but the document in ruijie says that you can configure the IP address in global configuration mode. 2. When configuring Multiple