Recent news about the two certificate authorities WoSign and StartCom has once again drawn attention to online privacy and security issues. With Mozilla, Apple, and Google finalizing penalties against these two CAs, many websites using certificates issued by them are now scrambling to find new certificates …
Today’s internet is fraught with undercurrents and countless traps, and HTTPS can help you guard against some of them. However, the HTTPS ecosystem relies heavily on Certificate Authorities (CAs), which have several widely criticized issues: certificates are expensive; the system lacks transparency; and there are serious security problems, such as being compromised to issue fraudulent certificates or mistakenly issuing certificates used for man-in-the-middle …
Installation Environment: CentOS 6.4
The PHP memcache extension enables support for the memcached database caching server. Below is the installation method.
1. Download
Download URL: http://pecl.php.net/package/memcache
File Name: memcache-3.0.8.tgz
After the file is downloaded successfully, upload …
When using VMware to set up a testing environment, I needed to clone multiple virtual operating systems (I’m using CentOS 6.4), which leads to a MAC address conflict issue.
Here’s the solution:
Open Virtual Machine Settings——Network Adapter——Advanced, check the MAC address, and regenerate …
When you check out from the server using TortoiseSVN for the first time, you are prompted to enter your username and password. Below the input fields, there is an option to save the authentication information. If you select this option, you won’t need to enter your username and password each time afterward. However, if you later modify …
The reason is that Maven defaults to versions 1.4 or 1.5. Navigate to the Maven installation directory and modify the version configuration file to fix this.
Here is an example using my installation path:
cd /usr/local/apache-maven/conf
vi settings.xml Scroll down to near the bottom where the JDK setting is and add the following code …
Jenkins Build Error: unmappable character for encoding ASCII
The cause is that the pom.xml file does not specify an encoding. Open the pom.xml file and add the following code as shown below:
Attachment code download: https://www.cnop.net/uploadfile/201 …
Open the user folder for the forgotten password: # find /root/.jenkins -name config.xml
The relevant user has only one file, config.xml. Replace the node content with the following, save, and restart:
#jbcrypt:$2a$10$DdaWzN64JgUtLdvxWIflcuQu2fgrrMSAMabF5TS …
If the download and installation of Yunsuo gets stuck at the following screen, the cause is a system language issue.
Fix:
Press “Ctrl + c” to terminate the installation –># export LC_ALL=C # Temporarily switch the system language environment to C locale –>Then reinstall Yunsuo …
While following up on a project recently, I noticed a large number of abnormal requests appearing in the backend Tomcat server logs. These showed up as requests from many suspicious domains and IPs, quickly flooding the website logs, as shown below: Since the frontend uses Nginx and its logs were normal, the above information basically confirms that the backend server was under a CC attack …
