Download the official OpenStack document for installation (Icehouse Juno Kilo), according to the official documentation, download two RPM packages, for example, I want to build OpenStack Icehouse on centos6.5, need two installation packages, EPEL-RELEASE-6.8-NOARCH.RPM source package, in one is rdo-release--icehouse-4-src.rpm opened under window. Check the configuration profile inside, there are Foreman.repo Puppetlabs.repo Rdo-release.repo find their corresponding, there is a epel-release-6.8-n
blockchain network. 2.1 Digital Currency architectureThe architecture of the digital currency consists of three major categories of member Services (membership), Blockchain Services (Blockchain), and Chain Code services (Chaincode). These categories are just the logical structure of the digital currency, not physically dividing the components into different processes, address spaces, or virtual machines. 2.1.1 Member ServicesMember Services are responsible for managing user identities, pr
character used to split the cookie value--load-cookies=l. Netscape/wget format files that contain cookies--drop-set-cookie Ignore Set-cookie from response--user-agent=agent HTTP user-agent Value--random-agent using a randomly selected HTTP user-agent value--host=host HTTP Host Value--referer=referer HTTP referer Value-H HEADER,--hea. Extension header (e.g. "x-forwarded-for:127.0.0.1")--headers=headers extension head (e.g. "accept-language:fr\netag:123")--auth-type=auth. HTTP Authentication Type
name 2015-05-26 14:58:23: Checking for super user privileges 2015-05-26 14:58:23: User has super user privileges Using configuration parameter file: /u01/11.2.0/grid/crs/install/crsconfig_params LOCAL ADD MODE Creating OCR keys for user 'root', privgrp 'root'.. Operation successful. root wallet root wallet cert root cert export peer wallet profile reader wallet pa wallet peer wa
/400/fill/i0jbqkfcma==/dissolve/70/gravity/center "/>Setting aliases is more convenient:
#设置别名更方便 Set-alias edit notepad.exe Edit Myscript.ps1
"Digital Signature Certificate"Scripts can easily be replaced or higher, and using signature verification tells us whether the script trusts or contains malicious tampering.To Create a certificate:Start-All Programs-->microsoft Visual Studio 2012-->visual Studio tools-->vs2012 x86 native Tools command PromptOr:C:\Program Files\Windows Kits\8
What's Token?Popularly speaking, token is a user's credential, need to take the correct user name/password to Keystone application to get. If users use username/password to access OpenStack API each time, it is easy to disclose user information, which poses a security risk. So OpenStack requires users to access their APIs before they need to get tokens, and then use token as their user credentials to access the OpenStack API.
The origins of the four tokensD version, only the UUID type Toke
classified into public and private keys.Public Key: extracted and generated from the private key; can be made public to everyone;Private Key: It is created using tools and kept by the user. The private key must be kept confidential;
Features: data encrypted with the public key can only be decrypted using the private key of the matching child; and vice versa;Purpose:Digital Signature: allows the recipient to confirm the sender's identity;Key Exchange: the sender encrypts a symmetric key with the
;function: completeness;Algorithm:Md5:message Digest 5, 128bitsSha1:secure Hash algorithm 1, 160bitssha224, sha256, sha384, sha512Key exchange: IKE (Internet key Exchange)Public Key CryptographyDH (Deffie-hellman)A:p, GB:p, GA:x-P^x%g ==> BA: (p^y%g) ^x=p^yx%g B:y-P^y%g ==> AB: (p^x%g) ^y=p^xy%gSecond, the PKIPKI is the initial acronym of Public Key Infrastructure, which is the key infrastructure; PKI is a standard technology and specification to use
provide the necessary directory-level files and text-level files for the CA;Directory-level files:/etc/pki/ca/certs/etc/pki/ca/crl/etc/pki/ca/newcertsText-level files:/etc/pki/ca/serial: Save certificate serial number, general initial serial number AH is 01;/etc/pki/ca/inde
1. Fedora 14 Yum source Shanghai Jiaotong University
First, enter the terminal to open and enter the Su, password, and administrator permission;
Input VI/etc/yum. Repos. d/fedora-sjtu.repo, press ENTER
Copy the following content to the opened fedora-sjtu.repo again:
Fedora-ftp.sjtu.edu.cnName = fedora 14-i386Base url = http://ftp.sjtu.edu.cn/fedora/linux/releases/14/Fedora/i386/ OS/Enabled = 1Gpgcheck = 0Gpgkey = file: // etc/pki/rpm-GPG-key-FedoraEve
Environment: AIx 7.1 Oracle RAC 11.2.0.3 [email protected]:/oraapp/GRID/gridhome>./root. shperforming root user operation for Oracle 11g
The following environment variables are set as: oracle_owner = grid ORACLE_HOME =/oraapp/GRID/gridhome
Enter the full pathname of the local bin directory: [/usr/local/bin]: copying dbhome to/usr/local/bin... copying oraenv to/usr/local/bin... copying coraenv to/usr/local/bin...
Creating/etc/oratab file... entries will be added to the/etc/oratab file as needed
is createdFinished running generic part of root script. now product-specific root actions will be saved med. using configuration parameter file:/u01/app/11.2.0/grid/crs/install/crsconfig_paramsUser ignored Prerequisites during installationInstalling Trace File AnalyzerOLR initialization-succe Ssful root wallet cert root cert export peer wallet profile reader wallet pa wallet peer wallet keys pa wallet keys
Localhost error causes Rac root. sh to fail to be executed, racroot. shEnvironment: AIX 7.1 Oracle Rac 11.2.0.3root @ kk01:/oraapp/grid/gridhome>./root. shPerforming root user operation for Oracle 11gThe following environment variables are set as: ORACLE_OWNER = grid ORACLE_HOME =/oraapp/grid/gridhomeEnter the full pathname of the local bin directory: [/usr/local/bin]: Copying dbhome to/usr/local/bin... copying oraenv to/usr/local/bin... copying coraenv to/usr/local/bin...Creating/etc/oratab fil
I encountered a certificate issue today.
Symptom:
A software used by the Customs Department must be connected to the Internet. However, the problem is that only the administrator can log on to the software. If another user with the administrator privilege is used, the software cannot be used either. the error message "cannot connect to the server" is displayed.
Analysis:
The software is installed under the Administrator. During the installation, the certificate is required for the softwa
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