1, local project uses WebStrom for development, vue framework; 2, when the project runs (npm run dev), in development mode, each function performs as expected, mainstream browsers (chrome, firefox, QQ, 360, Sogou) have good compatibility; 3, packaged (...
modprobe vboxsf reports an error virtual boxmodprobe: FATAL: Module vboxsf not found when virtual box mounts a file ...
problem description the project requires programs to connect to multiple databases (about 30, with the same username and password, but different library names). How to operate gracefully in Laravel? reference I have looked up the article Laravel ...
has set the environment variable in etc profile, which can be printed directly on the command line, but it is not available in the node program with "console.log (process.env.NODE_COUNTRY) ". Currently, it is also logged in by root users. what may b...
in the server, there is an elk user in etc passwd, but when I tell me in su that there is no such user, what does that mean? ask everyone to take a look at this. Why ...
using 1. yum-y install samba samba-client samba service is installed in centos7, 2. Then go to etc samba smb.conf to configure, as follows: [global] workgroup = WORKGROUP server string = Samba Server Version %v ...
according to the 1m size of one thread two or three hundred concurrent threads are only two or three hundred megabytes. memory should not be the bottleneck so what is the bottleneck of tomcat? ...
I use the command ffmpeg-I home video a.mp4-r 1-s 950x520-f image2 home video a.jpg can be executed on the terminal, but in the PHP file, I run exec ( ffmpeg-I home video a.mp4-r 1-s 950x520-f image2 home video a.jpg ) through a browser bu...
encountered SSH login failure: Host key verification failed. my action: delete the corresponding IP, in Know--host and reconnect. but there is a problem: the password is wrong, and then let me re-enter it. This happens when the other Permission denie...
problem description how do I deploy celery on the server? Environment: celery 4.2.0 , django 2.0.8 , python3.6.5 < hr > the environmental background of the problem and the method of trying recently developed a small project that requires cel...
error: command gcc failed with exit status 1 error occurred when running the command pip install cryptography in centos environment. Python-devel, libevent-devel, libffi-devel, openssl-devel are all installed and are the latest versions. The details...
Hello, everyone cpu ...
an exception occurred when uploading a local file using the rz command. It has been ensured that the rz command can be used normally adding the parameter-be after searching on the Internet will not solve the problem either error screenshot is as fo...
dig google.com ; <<>> DiG 9.10.3-P4-Debian <<>> google.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41658 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDI...
problem description: when developing java applications, you need to visit this website. Everything accesses normally on windows, and when deployed to a linux server, access timeout occurs [root@VM_18_115_centos ~]-sharp wget https: wap.zhengzhoubu...
system version is CentOS 7. Start Apache to report an error [root@localhost wiki]-sharp service httpd start Redirecting to bin systemctl start httpd.service Job for httpd.service failed because the control process exited with error code. See "...
the VMware that was originally configured can be ping. the virtual machine ping native ping virtual machine can and then leave the machine to sleep for a period of time. After waking up, the ping www.baidu.com shows ping: www.baidu.com:Name or servic...
recently found a problem, such as when the IP address is 192.168.96.190 and the gateway is 192.168.8.1, there is no default route. When the IP address is 192.168.96.190 and the gateway is 192.168.96.1, there is a default route. what is this phenomenon? ...
The question is this: for example, if I have built a set of services using docker-compose on machine a, is there any way to quickly use these containers on other machines (b machines)? the way I can think of is: put all the files needed to build on...
1. There is a text test.log, content that is: 1 an A 2 b B 3 c C 2. Execute while to get normal output cat test.log |while read item;do echo $item;done 1 an A 2 b B 3 c C 3. But executing while+awk loses the first line cat test.log |while r...
question 1: do a function to generate PDF. Html is read locally without network connection. there is a test.jpg file in the root directory. Now I write the PDF generated by the relative path directly without pictures. could you tell me how to write...
when the router-view content exceeds 1 screen, container appears scroll bar. Click the button to jump to the details. In Firefox, the details page does not exceed 1 screen, but height is indeed the height of the previous screen, and the scrolling positio...
wrote a website. most devices are in normal use. but one iphone6p found it unable to interact. I connected to mac and developed it with safari. there are no script files in the loaded resources of the web page. that is, the jquery introduced by my ...
I am writing hard $data = $pdo->query( "SELECT * FROM `user` " ); $data2 = $pdo->query( "SELECT * FROM `user` " ); where to display <? while($row = mysqli_fetch_array($data)){ ?...
I use Aliyun s server, and the system version is Debian8.9,. Now I want to install it on the server or Google browser. Have you installed it before? Excuse me, how is it installed? ...