IT Daily Documentation

Unable to push repo using bitbucket in CentOS 7

August 4, 2020

Problem: try to use git to push my repo in CentOS 7. But pop up below error message:

fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Solution: Go to Bitbucket panel, go to the SSH keys page in Personal Setting (not repo setting) and add the public key content.

Then upload the private key to your CentOS 7 server and enter below command:

eval `ssh-agent`
ssh-add <private_key_file>

remember the key file permission (600), and if you don’t want to run above command every time you log in. you can run ssh-agent on the background.

eval $(ssh-agent -s)

then enter below command --

ssh -T [email protected]

above command is to verify your configuration and Bitbucket username. If you see below message then you can start to push your repo.

You can use git or hg to connect to Bitbucket. Shell access is disabled.

You can push your code using

git push

Process Documentation

Solve error – “… /sockjs-node/info?t=1462183700002 net::ERR_CONNECTION_REFUSED”

July 12, 2020

Problem: after deploy react website, the console prompt below message:

... /sockjs-node/info?t=1462183700002 net::ERR_CONNECTION_REFUSED
[WDS] Disconnected!

Solution: disable sockjs-node function in /node_modules/sockjs-client/dist/sockjs.js:

At line 1605:

try {
        // self.xhr.send(payload);  // comment it
    } catch (e) {
        self.emit('finish', 0, '');
        self._cleanup(false);
    }

Process Documentation

Solve error – “Error: ENOSPC: System limit for number of file watchers”

July 11, 2020

Problem: after enter command npm start, the error pop up. It seems related to file monitor process.

Solution: The quota need to be increased, enter below command:

echo fs.inotify.max_user_watches = 524288 | sudo tee -a /etc/sysctl.conf 
sudo sysctl -p

Source link: https://blog.csdn.net/qq_38106692/article/details/101512232

Process Documentation

“Warning: putenv() has been disabled for security reasons in…” occurred in LNMP

July 9, 2020

Problem: running command “composer install”, the error Warning: putenv() has been disabled for security reasons in” occurred.

In LNMP environment, the parameter “putenv” is disable by default.

Solution:

Go to php.ini and find disable_functions.

Then remove “putenv“.

Uncategorized

Laravel with Nginx config file example

July 9, 2020

Just for my reference.

server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    root /var/www/laravel/public;
    index index.php index.html index.htm;

    server_name localhost;

    location / {
            try_files $uri $uri/ =404;
    }
}

Process Documentation

No application encryption key has been specified even enter “php artisan key:generate” command

July 9, 2020

Problem: In Laravel 5, facing the common issue -- “No application encryption key has been specified” error after enter below command:

php artisan key:generate

still not work.

Solution: enter

php artisan config:cache

to enable cache.

Process Documentation

Redirect ip website using Nginx configuration

July 9, 2020

Want to prevent other visitor can view the ip website (e.g xxx.xxx.xxx.xxx/test_website), because it just for local test.

Solution:

add below script into server{}

set $allow 0;
if ($remote_addr ~ "your allowed ip 1") { set $allow 1;}
if ($remote_addr ~ "your allowed ip 2") { set $allow 1;}
if ($remote_addr ~ "your allowed ip 3") { set $allow 1;}

if ($allow ~ 0) {
	rewrite ^ https://www.google.com;
}

Process Documentation

WordPress – need FTP account and password/Connection Information to update plugins

July 8, 2020

Problem: need FTP account and password/Connection Information to update plugins.

Solution: add below script in your wp-config.php file:

define('FS_METHOD', 'direct');

ref: https://stackoverflow.com/a/46161116/9311972

Process Documentation

Run command after connected a bash terminal via SSH

June 30, 2020

Problem: Want to run command after SSH connected.

Solution: if you are using Ubuntu, enter:

echo 'command' >> ~/.bashrc

if you are using Centos, enter:

echo 'command' >> ~/.bash_profile

Process Documentation

Use ssh-agent to save ssh passphrase in Window 10

June 10, 2020

Ref: https://stackoverflow.com/a/52113739

Ref: https://stackoverflow.com/a/18683544

Problem: When using SSH to connect other server, I don’t want to type passphrase everytime:)

For Windows 10 you need PowerShell to active ssh-agent in order to save passphrase.

Solution: First use Administrator right to open PowerShell (Windows PowerShell).

Then enter below command to active ssh-agent:

local Administrator PowerShell 
Set-Service ssh-agent -StnartupType Automatic
Start-Service ssh-agent
Get-Service ssh-agent

Then now you can add the key file (My file store in C:\Users\user.ssh\id_rsa), it will prompt a message to obtain the passphrase.

ssh-add C:\Users\user.ssh\id_rsa
(Enter your passphrase)

Eventually, ssh-agent will store your passphrase now. You can also enter

ssh-add -l

to check out the record.