Symptom:
When the program connects to mysql, mysql error. log prompts:
[Warning] IP address '10. 0.0.220 'cocould not be resolved: Name or service not known
Cause:
The Mysql database server does not have/etc/hosts configured or DNS services. As a result, the mysqld thread fails to parse the host name corresponding to the IP address.
References:
Mysql domain name resolution:
When a new client tries to create a connection with mysqld, mysqld generates a
Http://www.33lc.com/article/4015.html
1. view the Host Name
In Ubuntu, there are multiple methods to quickly view the Host Name:
1. Open a GNOME terminal window and you can see the host name in the command prompt. The host name is usually located after the "@" symbol;
2. Enter the hostname or uname-n command in the te
The new webmaster who buys a host for the first time is often confused by the host provider's many parameters and exaggerated slogans. as a result, the host cannot be properly selected. Let's take a look at the common usage when purchasing a host.
The new webmaster who buys a ho
Virtual host, you can save a lot of equipment, personnel, technology, capital, time and other inputs, for the upcoming establishment of Internet Web site enterprises to provide a "cheap" solution. Currently, 80% of the world's corporate Web sites are using virtual hosts.
What is a virtual host
The so-called virtual host, is to run a server on the Internet into a
Python10 job idea and source code: Class Fabric host Management Program Development (for reference only), python10fabric
Class Fabric host Management Program Development 1, job requirements
1. Run the program to list the Host group or host list (completed)
2. Select the specified h
Apache has two types of virtual hosts: IP-based virtual hosts and domain-based virtual hosts.
For IP-based virtual hosts, the configuration is as follows:
Namevirtualhost 10.10.10.11: 80Namevirtualhost 10.10.10.12: 80
# Virtualhost 1DocumentRoot "/AAA /"Servername domain1
# Virtualhost 2DocumentRoot "/BBB /"Servername domain2
Note: because each IP address is configured with a virtual host, you only need to determine which virtual
Programme background
In the rapid development of Internet information today, the development of IDC industry is more and more, so more people urgently need a simple and easy IDC solution. In order to solve this one IDC industry general concern problem, we launch this solution for reference.
Overall goal
Build a fully operational, easy to implement, easy to maintain and safe and stable host operation platform.
Demand analysis
1. Basic facilities
Before talking about the VMware network model, let's talk about several VMware Virtual Devices:
Vmnet0: This is the virtual switch used by VMware for virtual Bridging networks;Vmnet1: This is the virtual switch used by VMware in the Virtual Host-only network;Vmnet8: This is the virtual switch used by VMware for virtual Nat networks;VMware network adapter vmnet1: This is the virtual Nic used by the host to
Power-saving FEDORA host-Linux Enterprise Application-Linux server application information. The following is a detailed description. What is "power saving "?
However, if you have played a server, you will know the importance of power saving (especially when you see a power bill)
Here we mainly compare the user habits and do not compare the least power consumption of the host (because we know that the CPU
During multi-host communication, the RS232 interfaces of all devices are on the communication line. Only one device can be a host, and the others can be a slave device. The communication is initiated by the host. Generally, a data frame uses one start bit and nine data bits. Among them, 9th bits (rxb8) are used to indicate whether the frame is an address frame or
Anattality Welcome reprint, Please also keep this statement. Thank you!Source: https://andyyoung01.github.io/or http://andyyoung01.16mb.com/This article explores Docker's stand-alone container network, which provides a basis for subsequent understanding of network patterns across a single docker host.The establishment and control of Docker's default container network is a comprehensive solution combining network Namespace,iptables,linux Bridge and route table, this article focuses on how to use
OracleNet is an indispensable component in the process of using Oracle. For beginners, the three configuration files tnsname. ora, listener. ora, and sqlnet. ora are the most
Oracle Net is an indispensable component in the process of using Oracle. For beginners, the three configuration files tnsname. ora, listener. ora, and sqlnet. ora are the most
Oracle Net is an indispensable component in the process of using Oracle. For beginners, the three configuration files tnsname. ora, listener. or
Before introducing network mode, the use of several simple commands about the networkIfup eth0//start NIC Eth0Ifdown eth0//Turn off the NIC Eth0/etc/network/interfaces//Network configuration file/etc/init.d/networking//Network service location/etc/init.d/networking Restart//Restart Network/etc/resolv.conf//dns configuration fileIfconfig eth0 192.168.5.111//Reconfigure IP for NIC Eth0Simple introduction to one or three modesVMware offers three modes of operation, which are bridged (bridging mode)
Original: http://villasy1989.iteye.com/blog/956746My host is Windows7, installing a VMware virtual machine, loading the Ubuntu10.04 in the virtual machine, first introducing several virtual devices under VMware:Vmnet0:vmware is used for Virtual switch under virtual bridging network;Vmnet1:vmware is used for Virtual switch under virtual Host-only network;Vmnet8:vmware is used for Virtual switch under virtual
1 host-only Connection modeThe virtual machine has a separate IP address that differs from the host, but it is in a different network segment than the host host, and a new IP address is added to the host, and the IP address is guaranteed to be in the same network segment as
Environment: WIN7 flagship, desktop, u disk wireless Internet card.Virtual software: VMware9.0, virtual system: CentOS6.4Virtual machines need to be implemented to work as standalone machines and to surf the Internet.Three ways to introduce VMware network settings first1 host-only Connection modeThe virtual machine has a separate IP address that differs from the host, but it is in a different network segmen
How to deploy the SQL database to a remote host environment
You have developed a proud ASP. NET application, all things have been tested and everything works normally on your local machine, making full use of ASP. NET 2.0 members, roles, user information, and other new features, everything is ready, ready to publish it to a remote host environment, share this application with the world.
It is very easy to c
In a Kering host environment, typically all hosts in an office network do not have a public IP address, but they are able to access the Internet through a router (gateway) device with an IP address, which requires only NAT and forwarding capabilities. A device with such a function can, of course, be replaced by a single computer.The following is the simplest model:Host a (server side):Nic 1: Intranet IP Address 1NIC 2: Public IP address 3 or an IP add
Ext: http://blog.csdn.net/inject2006/article/details/3064399 Part of the content has changedIf you want to use VMware to install virtual machines, or to create a virtual system that is isolated from other machines in the network for special debugging purposes, the choice of network connection mode for virtual systems is very important. If you choose to work in an incorrect mode, you won't be able to achieve this, and you won't be able to take full advantage of VMware's role in network management
How do I select a disk host? Barcode data collector?
The inventory host is also called mobile smart terminal, barcode data collector, inventory gun, PDA, etc.
With the widespread popularization of bar code technology and the development of Warehouse Management Information Technology, more and more enterprises have adopted a set of inventory management software for warehouse management. We only need to inpu
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