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  • Wang 22:55 on 2020-02-16 Permalink | Reply
    Tags: blog, , ,   

    Migrate blog from GCP —> WordPress.com! 😀😀

     
  • Wang 23:42 on 2018-05-11 Permalink | Reply
    Tags: blog, , , ,   

    Website down 

    Today I received alert email suddenly which said my blog site went down…😂😂😂

    So I logged in server and checked containers’s status, everything looked fine

    [root@blog xiaowang]# docker stack ps blog
    ID                  NAME                IMAGE               NODE                DESIRED STATE       CURRENT STATE            ERROR               PORTS
    qwsjjol3jk2f        blog_mysql.1        mysql:5.7           blog                Running             Running 15 days ago                       
    n9gbil4zcavy        blog_nginx.1        nginx:1.13.8        blog                Running             Running 15 days ago                       
    hg778gcc35vz        blog_wordpress.1    wordpress:4.9.1     blog                Running             Running 15 days ago
    

    When I checked the port, everything also looked fine

    [root@blog xiaowang]# netstat -tuapn | egrep '80|443'
    tcp6       4      0 :::80                   :::*                    LISTEN      12146/dockerd       
    tcp6       2      0 :::443                  :::*                    LISTEN      12146/dockerd       
    tcp6      74      0 ::1:80                  ::1:47352               CLOSE_WAIT  -                   
    tcp6       3      0 ::1:80                  ::1:47348               CLOSE_WAIT  -                   
    tcp6      74      0 ::1:80                  ::1:47402               CLOSE_WAIT  -                   
    tcp6      78      0 ::1:443                 ::1:56994               CLOSE_WAIT  -                   
    tcp6      78      0 ::1:443                 ::1:56944               CLOSE_WAIT  -                   
    tcp6      74      0 ::1:80                  ::1:47350               CLOSE_WAIT  -
    

    But when I executed “curl http://localhost, it was blocked, so I guess something wrong with local network.

    After checking I executed “sysctl -w net.ipv4.ip_forward=1” to enable ip forward, and I finally could access the port. So I executed “echo “net.ipv4.ip_forward=1″ >> /etc/sysctl.conf” to make it permanent.

    I’m using google cloud, I guess maybe they have reset the network which I didn’t make it permanent before.

     
  • Wang 22:12 on 2018-04-05 Permalink | Reply
    Tags: blog, , ,   

    Test https on blog 

    After applying certification on Let’s Encrypt, I tested the certification and generated the report.

     
  • Wang 18:23 on 2018-02-10 Permalink | Reply
    Tags: blog, chrome, , Web   

    not good..

     
  • Wang 19:05 on 2018-01-20 Permalink | Reply
    Tags: aliyun, blog, , ,   

    Proxy Aliyun’s domain to AWS’s server 

    I registed my domain “wanghongmeng.com” on Aliyun, and applied free EC2 server for one year on AWS.

    After building my blog on AWS, I set A parse to the server’s IP of AWS.

    But yesterday I received email from Aliyun which said that my server was not in Aliyun after they checking, it was not allowed, I have to miggrate my blog server to Aliyun, otherwise they will undo my authority number.

    After thinking about this, for saving money(Aliyun is not free for one year), I solved it by the way below:

    1.Set A parse to my friend’s server ip which was bought in Aliyun

    2.Add a piece of configuration in his nginx.conf:

    server {
        listen  80;
        server_name  wanghongmeng.com www.wanghongmeng.com;
    
        location / {
            rewrite ^/(.*)$ https://$server_name/$1 permanent;
        }
    }
    
    server {
        listen 443;
        server_name wanghongmeng.com www.wanghongmeng.com;
        ssl on;
        ssl_certificate "Location of Pem File";
        ssl_certificate_key "Location of Key File";
        ssl_session_timeout 5m;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_ciphers "Your Algorithm";
        ssl_session_cache shared:SSL:50m;
        ssl_prefer_server_ciphers on;
    
        location / {
            proxy_pass  http://AWS's IP:443/;
        }
    }
    

    3.Expose 443 port on my AWS, and only accept requests from my friend’s server IP:

    server {
        listen  443;
        
        set $flag 0;
        if ($host = 'www.wanghongmeng.com') {
            set $flag 1;
        }
        if ($host = 'wanghongmeng.com') {
            set $flag 1;
        }
        if ($flag = 0){
            return 403;
        }    
        
        location / {
            allow "My Friend's Server IP";
            proxy_pass  http://blog-ip;
        }
    }
    

    Things done! 😀😀

     
  • Wang 23:27 on 2018-01-06 Permalink | Reply
    Tags: blog, , , ,   

    Build blog with docker/wordPress with https 

    1.install docker

    1.1.update yum

    sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
    [dockerrepo]
    name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/7/ enabled=1 gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg EOF 
    

    1.2.install docker

    sudo yum update -y
    sudo yum install -y docker-engine
    sudo curl -L https://github.com/docker/compose/releases/download/1.18.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
    sudo chmod +x /usr/local/bin/docker-compose
    sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
    

    1.3.start docker

    sudo systemctl enable docker
    sudo systemctl start docker
    

    2.https/nginx configuration

    2.1.replace certificate

    replace domain.key/chained.pem with your certificate, you could apply free certificate on Let’s Encrypt

    2.2.nginx configuration

    replace wanghongmeng.com with your domain in nginx.conf

    3.initialize

    3.1.wordpress initialize

    login http://xxx.com, setup wordpress

    3.2.install https plugin

    install Really Simple SSL plugin, setup whole site covered by https

    3.3.test

    https://xxx.com

     
  • Wang 21:46 on 2018-01-06 Permalink | Reply
    Tags: blog, , ,   

    Build blog with docker/wordpress 

    1.install docker

    1.1.update yum

    sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
    [dockerrepo]
    name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/7/ enabled=1 gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg EOF 
    

    1.2.install docker

    sudo yum update -y
    sudo yum install -y docker-engine
    sudo curl -L https://github.com/docker/compose/releases/download/1.18.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
    sudo chmod +x /usr/local/bin/docker-compose
    sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
    

    1.3.start docker

    sudo systemctl enable docker
    sudo systemctl start docker
    

    2.start wordpress by docker-compose

    sudo docker-compose -f blog-compose.yml up -d
    

    3.test wordpress

    http://localhost

    P.S. start container by docker instead of docker-compose

    docker run --name blog-mysql -v /var/lib/mysql:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=mysql -e MYSQL_DATABASE=blog -e MYSQL_USER=blog -e=MYSQL_PASSWORD=blog -d mysql:5.7 --character-set-server=utf8 --collation-server=utf8_general_ci
    docker run --name blog-wordpress --link blog-mysql:mysql -e WORDPRESS_DB_USER=blog -e WORDPRESS_DB_PASSWORD=blog -e WORDPRESS_DB_NAME=blog -p 8080:80 -d wordpress:4.9.1
    
     
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