How To Create an SSL Certificate on Nginx

1. Install Nginx sudo yum install epel-release sudo yum install nginx sudo systemctl start nginx sudo systemctl enable nginx sudo firewall-cmd --permanent --zone=public --add-service=http sudo firewall-cmd --permanent --zone=public --add-service=https sudo firewall-cmd --reload Note: maybe user nginx repo Create file repo: /etc/yum.repo.d/nginx.repo [nginx] name=nginx repo baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/ gpgcheck=0 enabled=1 2.Create...

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How to Install PHP 5.6 or PHP 7.1 on Ubuntu 16.04, 14.04 using PPA

Install PHP 5.6 on Ubuntu Use the following set of command to add PPA for PHP 5.6 in your Ubuntu system and install PHP 5.6. $ sudo apt-get install python-software-properties $ sudo add-apt-repository ppa:ondrej/php $ sudo apt-get update $ sudo apt-get install -y php5.6 apt-get install libapache2-mod-php5.6 php5.6-cli php5.6-common php5.6-curl php5.6-gd php5.6-mysql php5.6-mysqli php5.6-json php5.6-mcrypt php5.6-odbc php5.6-xmlrpc...

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Set static IP Ubuntu

sudo nano /etc/network/interfaces and paste this under # The primary network interface: auto enp0s25 iface enp0s25 inet static address 192.168.0.16 netmask 255.255.255.0 gateway 192.168.0.1 dns-nameservers 8.8.4.4 8.8.8.8 sudo ip addr flush enp0s25 sudo systemctl restart networking.service Then verify it is correct: ip a...

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How to reset lost user password ubuntu on VMWare server

How to reset lost user password ubuntu on VMWare server edit the virtual machine's configuration (.vmx) and add or edit this option: bios.bootDelay = "15000" Reset Your Ubuntu Password Reboot your computer, and then as soon as you see the GRUB Loading screen, make sure to hit the ESC key so that you can get to the menu. If you have the option, you can choose the “recovery mode” item on the menu, usually found right below...

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How to Fix _default_ VirtualHost overlap on port 80, the first has precedence

Question :I running wordpress blog on apache web server on Virtual private server (VPS). I had the problem when i restarted the httpd service on my VPS. This error came after i setup multiple domain on my httpd config file, meaning i used more than one VirtualHost on httpd.conf : [root@vps ~]# service httpd restart Stopping httpd: [ OK ] Starting httpd: [Thu May 01 00:01:03 2014]...

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Các lệnh cơ bản mongodb

Sử dụng mongodb cũng chỉ cần thông qua một số câu lệnh đơn giản, chủ yếu là insert, update, find và remove. 1. Kết nối đến mongodb. Tương tự khi sử dụng sql thì phải kết nối đến database, mongodb cũng vậy: $m = new Mongo(“mongodb://${username}:${password}@localhost”); Lệnh này khởi tạo kết nối đến server cài đặt mongodb, mặc định nếu không có tham số sẽ là localhost với cổng port = 27017. Tiếp theo là lệnh chọn database $db...

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Kiến trúc Oracle Database 11g

Kiến trúc Oracle Database 11gXét 1 server Oracle cơ bản, chúng ta có 3 kiến trúc:Kiến trúc bộ nhớ (Memory Structure)+ Kiến trúc process (Process Structure)    ==> InstanceKiến trúc lưu trữ (Storage Structure) ==> DatabaseVới nonclustered database system, mỗi database sẽ chạy trên 1 instance. Trên 1 server, bạn tạo ra 3 database, thì sẽ có 3 instance, mỗi instance chạy cho 1 database.Với clustered database...

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Oracle 11g Enterprise Manager DB Control Changing Accessibility Mode Disabled to Enabled

I was using the OEM11G, when after the logon with my credential users, I saw the follow message “Accessibility Mode Disabled” as the image below: To solve it, you need to change the status of the accessibility-mode in the file “uix-config.xml”. This file can be found on directory:  $ORACLE_HOME/j2ee/OC4J_EM/applications/em/em/WEB-INF/....

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