Plsql Remote Access Database address ora-12541: TNS: the best way to do without listeners, plsqlora-12541
It is strange that the ip address on the local LAN is not fixed. Now all the ip addresses are fixed, and this error is always reported. Baidu has no solution and is not feasible, or is there a problem with the method I opened ?????? I uninstalled the local oracle last night !!! The Virtual Machine is i
! "); -}Catch(IOException e) { Wu e.printstacktrace (); - } About $ } - - Public StaticConnection getconnection () { - returnConnectionker; A } + the Public StaticHbaseconnker getistance () { - //defines a common static method that returns an instance of the type $ if(Instanceker = =NULL) { the //when an object is instantiated (without using a synchronous block of code, instance is not equal to NULL, the object is returned directly
Create a MySQL user and set the remote access to grant usage on *.* to ‘fred‘@‘localhost‘ identified by ‘fred‘;//创建用户fred密码ferd select host,user,password from mysql.user where user=‘fred‘;//查看记录 grant all privileges on *.* to [emailprotected]‘%‘identified by ‘fred‘;//设置可以远程访问Workaround:1, change the table method:It may be that your account is not allow
Tags: address cal ted Base collision database from CTE changeTo turn on MySQL remote access permissions: log on to the MySQL service on a Linux system. -- Root is the user name
[[email protected] ~] - - P
-- Enter Password To create a remote connection to MySQL User: --Create
In terms of network performance, security, manageability, Linux has a strong advantage that other systems cannot match, and servers are particularly demanding on these aspects, so Linux is often used for server use. And when we need to maintain a Linux server, we need to remotely access the Linux system, this time a brief introduction to the Linux server under Windows remote
Install Jupyter notebook******
The first step: Install the Ipython, after the installation completes enters Ipython, the following figure, enters exit may exitPip Install Ipython
Step Two: Install JupyterPip Install Jupyter
Step Three: Configure the environment to access Jupyter notebook remotely
1, Jupyter notebook--generate-config
If you receive the following prompts, add –allow-root after the previous commandJupyter Notebook–generate-config–allow
: Self.client.connect ((self.ip,self.port)) except Oserror:print ("a socket operation was attempted to a network that cannot be connected") Self.txtBox.delete (0.0, END) self.txtBox.insert (0.0, "%s:%d connection failed ..."% (Self.ip,self.port)) Else:print ("%s connection succeeded ..."%self.ip) self.txtBox.delete (0.0, END) self.txtBox.ins ERT (0.0, "%s:%d connected successfully ..."% (Self.ip,self.port)) # The connection is successful and the other button is changed
Customize a configuration file for notebook, which is user-based rather than global. The generated file and location are prompted after the command executes . $ Ipython Profile Create Nbserver
Modify the ipython_notebook_config.py file that was generated when the create Nbserver was just created#, ipython_notebook_config.py is located in the ~/.ipython/profile_nbserver/directory by defaultC=Get_config
the MySQL database:Exit V. MySQL permissions detailed classification:Global Administrative permissions:File: Read and write files on the MySQL server.PROCESS: Displays or kills service threads belonging to other users.RELOAD: Overloads the Access Control table, refreshes the log, and so on.SHUTDOWN: Turn off the MySQL service.Database/data Table/Data column permissions:Alter: Modifies an existing data table (for example, add/Remove Columns) and index
MySQL default root user only local access, not remote connection management MySQL database, Linux How to open MySQL remote connection? Set the steps as follows:1. Grant command create remote connection MySQL authorized user Itlogger
The code is as follows
Co
Remote access to the mysql database:1. First, make sure that the firewall blocks the mysql database port (default: 3306 ).In Linux, you can use the following command to disable the Firewall:# Service iptables stopFor more information about how to set the firewall, see log: iptables firewall settings in RadHat Linux.2. log on to the mysql database:A) log on with the root account in LinuxB) In Windows, click
of a remote user
9. Obtain the real IP address of the remote user through the proxy server:If (request. servervariables ["http_via"]! = NULL ){
String user_ip = request. servervariables ["http_x_forwarded_for"]. tostring ();
} Else {
String user_ip = request. servervariables ["remote_addr"]. tostring ();
}
10. session ["variable"];Access session value;
For exa
Idrac settings
Click the Configuration tab and select Users (user).
Click [Available] (available) under the Username column to add a new user, or click the user name under the Username column to edit an existing user.
In the add/configure DRAC/MC User (Add/configure DRAC/MC users) page, configure the user name, password, access rights, and e-mail alert settings for the new or existing DRAC/MC user.
Configure a new user name and p
if not yet.4, sometimes may appear the client to the Chinese support bad question, may refer to the following third article environment variable setting:On the desktop, right-click My Computer, select Properties, select Environment variables in the Advanced page, and in the system variables, increase:1) variable name: oracle_homeVariable Value: E:\instantclient_11_22) variable name: tns_adminVariable Value: E:\instantclient_11_23) variable name: Nls_langVariable value: Simplified Chinese_china.
[[email protected] ~]# mkdir/home/liu/.ssh //If there is no need to create the folder[email protected] ~]# cat/etc/ssh/sshd_config >>/home/liu/.ssh/authorized_keys //The public key is imported into the authentication file of the server.6. Client set access server via SSH[[email protected] ~]$ ssh [email protected][email protected]' s password://input is the call phrase, if not set the calling phrase can be
following:In [1 from notebook.auth import Passwdin [2]: passwd () Enter password:verify password:out[2'sha1:67c9e60bb8b6:9ffede0825894254b2e042ea597d771089e11aed' sha1:67c9e60bb8b6:9ffede0825894254b2e042ea597d771089e11aedThis string is the password to be jupyter_notebook_config.py added.C.notebookapp.password = u'sha1:67c9e60bb8b6:9ffede0825894254b2e042ea597d771089e11aed '3. Modify the configuration filejupyter_notebook_config.pyLocate the following line in, uncomment and modify.c.notebookapp.
Configure SQL Server 2000 to allow remote accessSuitable for faults:1. Use the SQL Enterprise Manager to access SQL Server 2000 (because it adopts the Named Pipes method), but cannot be accessed using the ado.net method (UDP.2. Do not allow remote access using the ado.net method.Possible causes of faults include:1. SQL
Pptp settings and local vpn (and solve the problem that ssh cannot access the remote host under the vpn)1. Install pptpSudo apt-get install-y ppp pptpdsudo vim/etc/pptpd. conf modification: option/etc/ppp/pptpd-optionslocalip 172.31.26.19 (local vpn address) remoteip 172.31.26.20-200 (vpn customer point address range)Create a vpn account sudo vim/etc/ppp/chap-sec
http://www.linuxidc.com/Linux/2013-04/82510.htm
Configure and install http://www.linuxidc.com/Linux/2013-05/83975.htm for VNC under CentOS
VNC remote control installation and setup http://www.linuxidc.com/Linux/2013-01/77769.htm
Windows Access Ubuntu http://www.linuxidc.com/Linux/2012-10/73043.htm through VNC
Install VNC http://www.linuxidc.com/Linux/2012-07/64801.htm for Windows
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