When install dlib python module, i get error
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ERROR: Failed building wheel for dlib fatal error: Python.h: No such file or directory |
This is because missing python3-dev package. To fix, install
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apt install python3-dev |
If you are using python virtualenv, you will need to recreate the virtualenv after installing dev package.
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virtualenv -p /usr/bin/python3 venv |
To list all packages installed with brew
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brew list |
To see if a specific package installed, run
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brew list | grep package_name |
You can use PHP header() function to do redirect.
To do 301 redirect, use
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header('Location: https://new-url/', true, 301); exit; |
For 302 redirect, use
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header('Location: https://new-url/'); exit; |
If you need to redirect a site to new site keeping same URL structure, you can use
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$newUrl = "https://NEW-URL-HERE" . $_SERVER['REQUEST_URI']; header("HTTP/1.1 301 Moved Permanently"); Header("Location: $newUrl"); exit; |
On a Nginx server, when accessing a long url, i get error
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HTTP 414 Request-URI Too Large |
To fix the error, edit
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vi /etc/nginx/nginx.conf |
inside “http” section, find
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large_client_header_buffers |
Replace the line with
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large_client_header_buffers 4 32k; |
If your URL is very large, you may need to increase the 32k to higher or reduce the url length.
Large url like this mostly happend due to bad application design, so if possible try to make URL smaller.
Restart nginx
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systemctl restart nginx |
On older servers (centos 6, ubuntu 14, etc..), run
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service nginx restart |
On an Ubuntu Server, i done following to setup email forwarding.
Install postfix
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apt -y install postfix |
Edit /etc/postfix/main.cf, add following
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vi /etc/postfix/main.cf |
Add
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virtual_mailbox_domains = YOUR-DOMAIN_HERE.com virtual_mailbox_base = /var/mail/vhosts virtual_mailbox_maps = hash:/etc/postfix/vmailbox virtual_minimum_uid = 100 virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 virtual_alias_maps = hash:/etc/postfix/virtual |
Create Virtual mailbox
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vi /etc/postfix/vmailbox |
Add
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user1@YOUR-DOMAIN_HERE.com YOUR-DOMAIN_HERE.com/user1 |
Create alias file, used for mail forwarding
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vi /etc/postfix/virtual |
Add
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admin@YOUR-DOMAIN_HERE.com YOU@gmail.com |
Wth above configuration, mail coming to [email protected]_HERE.com will get forwarded to [email protected] Email coming to [email protected]_HERE.com get delivered to local mailbox folder.
Now run following commands to make hashmap
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postmap /etc/postfix/vmailbox postmap /etc/postfix/virtual |
Restart postfix
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systemctl restart postfix |
To upgrade EasyEngine, run
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ee cli update |
It is recommended you run this in tmux or screen to avoid disconnection while upgrading.
Example
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root@ip-172-26-9-39:~# ee cli update Note: It is recommended to run EasyEngine update in tmux/screen. Update at times may take some time. To view progress, tail logs in a different window using `tail -f /opt/easyengine/logs/ee.log`. You have version 4.0.14. Would you like to update to 4.0.17? [y/n] y Downloading from https://github.com/EasyEngine/easyengine/releases/download/v4.0.17/easyengine.phar... md5 hash verified: cb9041faecdae54e51aafdc9adccc4e5 Updating EasyEngine to new version. This might take some time. New version works. Proceeding to replace. Success: Updated EE to 4.0.17. root@ip-172-26-9-39:~# |
Related Posts
When restoring a MySQL database, i get error “MySQL server has gone away”.
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# mysql -u root -p'serverok123' sok_wp < backup.sql ERROR 2006 (HY000) at line 5095: MySQL server has gone away # |
To fix this, edit MySQL configuration file. Add following line under [mysqld] section.
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max_allowed_packet = 256M |
Restart MySQL
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systemctl restart mysql |
If you use MariaDB
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systemctl restart mariadb |
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iRedMail allow you to run your own mail server easily. It use postfix mail server for mail delivery.
Default mail attachment size in iredmail is 10 MB. To increase mail attachment size, login to server as user root, run following commands
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postconf -e message_size_limit=104857600 postconf -e mailbox_size_limit=104857600 systemctl restart postfix |
Here 104857600 is 100 MB in bytes (100 * 1024 * 1024). Change this as required. Sending very large file using mail attachment is not recommended, it is better use file sharing services like Google Drive, Dropbox, Microsoft OneDrive or another file hosting service for sharing large files.
Now edit php.ini file
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vi /etc/php/7.2/fpm/php.ini |
Change value for 3 of the following settings. It can be anything above 100 MB or whatever attachment size you want to use.
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memory_limit = 256M; upload_max_filesize = 100M; post_max_size = 120M; |
Restart php-fpm
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systemctl restart php7.2-fpm |
Edit roundcube configuration file
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vi /opt/www/roundcubemail/config/config.inc.php |
Set value for
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$config['max_message_size'] = '100M'; |
Edit Nginx config file
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vi /etc/nginx/conf-available/client_max_body_size.conf |
Set value for
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client_max_body_size 100m; |
restart nginx
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systemctl restart nginx |
Time Doctor is an application to track time. To uninstall Time Doctor on Ubuntu, run
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sudo /bin/bash -c 'apt purge sfproc; /bin/bash /opt/sfproc/uninstall' |
Time doctor run following process
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root@pc8:~# ps aux | grep sfp root 7884 0.0 0.1 72848 4316 pts/1 S 09:53 0:00 sudo -H -u training /bin/bash -l -c export DISPLAY=:0; export XAUTHORITY=/run/user/1004/gdm/Xauthority; export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1004/bus,guid=be774defc4c97a1711ff06305e2fb38d; export TD_DEVELOPER=; export XDG_CURRENT_DESKTOP=ubuntu:GNOME; export XDG_SESSION_DESKTOP=ubuntu; export XDG_SESSION_ID=2; cd /home/training; /opt/sfproc/SF/sfproc/3.0.64/sfproc &> /dev/null training 7889 0.0 0.0 19992 3148 pts/1 S 09:53 0:00 /bin/bash -l -c export DISPLAY=:0; export XAUTHORITY=/run/user/1004/gdm/Xauthority; export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1004/bus,guid=be774defc4c97a1711ff06305e2fb38d; export TD_DEVELOPER=; export XDG_CURRENT_DESKTOP=ubuntu:GNOME; export XDG_SESSION_DESKTOP=ubuntu; export XDG_SESSION_ID=2; cd /home/training; /opt/sfproc/SF/sfproc/3.0.64/sfproc &> /dev/null training 7893 4.4 1.2 1407988 51724 pts/1 SLl 09:53 0:00 /opt/sfproc/SF/sfproc/3.0.64/sfproc root 7947 0.0 0.0 21536 976 pts/1 S+ 09:54 0:00 grep --color=auto sfp root@pc8:~# |
