![\"\"](\"https:\/\/unsrewiki.1sys1.com\/wp-content\/uploads\/2019\/05\/2-1-1024x415.png\")
<\/figure>\n\n\n\n2). Next click on Access in the top-right and go to <\/p>\n\n\n\n
Kerberos configuration: Download File<\/p>\n\n\n\n
3). Transfer or copy the files within to \/etc<\/p>\n\n\n\n
4). yum install -y nfs-utils<\/p>\n\n\n\n
5). systemctl enable nfs-secure<\/p>\n\n\n\n
6). systemctl start nfs-secure<\/p>\n\n\n\n
7). reboot<\/p>\n\n\n\n
8). mkdir \/shared<\/p>\n\n\n\n
9). vi \/etc\/fstab<\/p>\n\n\n\n
vid1557507882.nas2.lan:\/vid1557507882 \/shared nfs sec=krb5 0 0<\/code><\/pre>\n\n\n\n10). hostnamectl set-hostname mywebsite.com<\/p>\n\n\n\n
11). mount -a<\/p>\n\n\n\n
12). df -h<\/p>\n\n\n\n
Filesystem Size Used Avail Use% Mounted on\n\/dev\/mapper\/centos-root 28G 2.1G 26G 8% \/\ndevtmpfs 223M 0 223M 0% \/dev\ntmpfs 235M 0 235M 0% \/dev\/shm\ntmpfs 235M 9.5M 225M 5% \/run\ntmpfs 235M 0 235M 0% \/sys\/fs\/cgroup\n\/dev\/sda1 509M 200M 309M 40% \/boot\nvid1557507882.nas2.lan:\/vid1557507882 50G 128K 50G 1% \/shared\ntmpfs 47M 0 47M 0% \/run\/user\/0\n<\/code><\/pre>\n\n\n\n13). cp -a \/var\/www\/mywebsite.com\/ \/shared\/mywebsite.com<\/p>\n\n\n\n
14). vi \/etc\/httpd\/conf.d\/mywebsite.conf <\/p>\n\n\n\n
<Directory \"\/shared\/mywebsite.com\">\nRewriteEngine On\nRewriteCond %{HTTPS} off [OR]\nRewriteCond %{HTTP_HOST} ^www\\. [NC]\nRewriteCond %{HTTP_HOST} ^(?:www\\.)?(.+)$ [NC]\nRewriteRule ^(.*)$ https:\/\/mywebsite.com\/$1 [R=301,L]\n<\/Directory>\n<VirtualHost *:80>\n ServerName mywebsite.com\n ServerAlias www.mywebsite.com\n DocumentRoot \"\/shared\/mywebsite.com\"\n<\/VirtualHost>\n<VirtualHost *:443>\n ServerName mywebsite.com\n ServerAlias www.mywebsite.com\n DocumentRoot \"\/shared\/mywebsite.com\"\n SSLEngine on\n SSLCertificateFile \"\/etc\/letsencrypt\/live\/mywebsite.com\/cert.pem\"\n SSLCACertificateFile \"\/etc\/letsencrypt\/live\/mywebsite.com\/chain.pem\"\n SSLCertificateKeyFile \"\/etc\/letsencrypt\/live\/mywebsite.com\/privkey.pem\"\n<\/VirtualHost><\/code><\/pre>\n\n\n\n15). useradd nfs<\/p>\n\n\n\n
16). passwd nfs<\/p>\n\n\n\n
17). su nfs<\/p>\n\n\n\n
18). kinit nfs\/uid929361.nas2.lan -kt \/etc\/krb5.keytab<\/p>\n\n\n\n
19). crontab -e<\/p>\n\n\n\n
1 * * * * kinit nfs\/uid929361.nas2.lan -kt \/etc\/krb5.keytab<\/code><\/pre>\n\n\n\n20). exit<\/p>\n\n\n\n
21). vi \/etc\/httpd\/conf\/httpd.conf<\/p>\n\n\n\n
User nfs\nGroup root\n<Directory \"\/shared\/mywebsite.com\/\">\n AllowOverride all\n # Allow open access:\n Require all granted\n<\/Directory><\/code><\/pre>\n\n\n\n22). chmod 755 -R \/shared\/mywebsite.com<\/p>\n\n\n\n
23). Check to make sure your site’s .htaccess only shows the following:<\/p>\n\n\n\n
cat \/shared\/mywebsite.com\/.htaccess<\/p>\n\n\n\n
# BEGIN WordPress\n<IfModule mod_rewrite.c>\nRewriteEngine On\nRewriteBase \/\nRewriteRule ^index\\.php$ - [L]\nRewriteCond %{REQUEST_FILENAME} !-f\nRewriteCond %{REQUEST_FILENAME} !-d\nRewriteRule . \/index.php [L]\n<\/IfModule>\n# END WordPress<\/code><\/pre>\n\n\n\n24). apachectl -k restart<\/p>\n\n\n\n
SSL<\/h2>\n\n\n\n
1). mkdir \/shared\/ssl<\/p>\n\n\n\n
2). cd \/shared\/ssl<\/p>\n\n\n\n
3). git clone https:\/\/github.com\/certbot\/certbot <\/p>\n\n\n\n
4). certbot<\/p>\n\n\n\n
5). mkdir \/shared\/keys<\/p>\n\n\n\n
6). .\/certbot-auto certonly –webroot -w \/shared\/mywebsite.com\/ –register-unsafely-without-email –config-dir \/shared\/keys -d mywebsite.com<\/p>\n\n\n\n
7). vi \/etc\/httpd\/conf.d\/mywebsite.conf<\/p>\n\n\n\n
<Directory \"\/shared\/mywebsite.com\">\nRewriteEngine On\nRewriteCond %{HTTPS} off [OR]\nRewriteCond %{HTTP_HOST} ^www\\. [NC]\nRewriteCond %{HTTP_HOST} ^(?:www\\.)?(.+)$ [NC]\nRewriteRule ^(.*)$ https:\/\/mywebsite.com\/$1 [R=301,L]\n<\/Directory>\n<VirtualHost *:80>\n ServerName mywebsite.com\n ServerAlias www.mywebsite.com\n DocumentRoot \"\/shared\/mywebsite.com\"\n<\/VirtualHost>\n<VirtualHost *:443>\n ServerName mywebsite.com\n ServerAlias www.mywebsite.com\n DocumentRoot \"\/shared\/mywebsite.com\"\n SSLEngine on\n SSLCertificateFile \"\/shared\/keys\/live\/mywebsite.com\/cert.pem\"\n SSLCACertificateFile \"\/shared\/keys\/live\/mywebsite.com\/chain.pem\"\n SSLCertificateKeyFile \"\/shared\/keys\/live\/mywebsite.com\/privkey.pem\"\n<\/VirtualHost><\/code><\/pre>\n\n\n\n8). apachectl -k restart<\/p>\n\n\n\n
9). crontab -e<\/p>\n\n\n\n
0 23 * * * \/shared\/ssl\/certbot\/certbot-auto renew --register-unsafely-without-email --post-hook \"apachectl -k restart\"<\/code><\/pre>\n\n\n\nMySQL<\/h2>\n\n\n\n
1). mysqldump -uwordpress -p wp > backup.sql<\/p>\n\n\n\n
2). Login to your new Server you have assigned to be your MySQL Server<\/p>\n\n\n\n
3). Transfer the backup from step 1 to it.<\/p>\n\n\n\n
4). yum update <\/p>\n\n\n\n
5). vi \/etc\/yum.repos.d\/MariaDB.repo <\/p>\n\n\n\n
[mariadb]\nname = MariaDB\nbaseurl = http:\/\/yum.mariadb.org\/10.2\/centos7-amd64\ngpgkey=https:\/\/yum.mariadb.org\/RPM-GPG-KEY-MariaDB\ngpgcheck=1<\/code><\/pre>\n\n\n\n6). yum install MariaDB-client MariaDB-server <\/p>\n\n\n\n
7). service mariadb start <\/p>\n\n\n\n
8). mysql_secure_installation <\/p>\n\n\n\n
9). \/etc\/my.cnf.d\/server.cnf<\/p>\n\n\n\n
bind-address=0.0.0.0<\/code><\/pre>\n\n\n\n10). service mariadb restart <\/p>\n\n\n\n
11). mysql -uroot -p <\/p>\n\n\n\n
Create DATABASE wp;\nCREATE USER 'wordpress'@'%' IDENTIFIED BY 'Xsfd2V^dg1';\nGRANT ALL PRIVILEGES ON *.* TO wordpress@'%' IDENTIFIED BY 'Xsfd2V^dg1' WITH GRANT OPTION;<\/code><\/pre>\n\n\n\n12). mysql -uwordpress -p wp < backup.sql<\/p>\n\n\n\n
Private Networking<\/h2>\n\n\n\n
1). In your IONOS Cloud Panel shutdown both servers<\/p>\n\n\n\n
2). In your IONOS Cloud Panel go to Actions > Clone to make an identical copy of your current webserver.<\/p>\n\n\n\n
3). In your IONOS Cloud Panel create a new private network.<\/p>\n\n\n\n
Assign all 3 servers to this same network.<\/p>\n\n\n\n
4). Assign the now Cloned Web Server to your shared storage<\/p>\n\n\n\n
4). Restart your servers<\/p>\n\n\n\n
5). Login to your first server<\/p>\n\n\n\n
6). ifconfig<\/p>\n\n\n\n
You should now see a new interface that you didn’t have before<\/p>\n\n\n\n
7). vi \/etc\/sysconfig\/network-scripts\/ens224<\/p>\n\n\n\n
DEVICE=ens224\nBOOTPROTO=none\nONBOOT=yes\nIPADDR=192.168.0.1\nNETMASK=255.255.255.0\nUSERCTL=no\nVLAN=yes<\/code><\/pre>\n\n\n\n8). ifup ens224<\/p>\n\n\n\n
9). Repeat steps 5-7 and be sure to adjust the device name and to use new IPs on line IPADDR, 192.168.0.1, 192.168.0.2, etc<\/p>\n\n\n\n
10). You should now be able to ping using the new private IPs between the servers<\/p>\n\n\n\n
11). vi \/shared\/mywebsite.com\/wp-config.php<\/p>\n\n\n\n
\/** MySQL hostname *\/\ndefine( 'DB_HOST', '192.168.0.1' );<\/code><\/pre>\n\n\n\n12). systemctl stop NetworkManager.service<\/p>\n\n\n\n
13). systemctl disable NetworkManager.service<\/p>\n\n\n\n
14). systemctl enable network.service<\/p>\n\n\n\n
15). systemctl start network.service<\/p>\n\n\n\n
16). vi \/etc\/rc.local<\/p>\n\n\n\n
ifup ens224<\/code><\/pre>\n\n\n\n17). chmod +x \/etc\/rc.local<\/p>\n\n\n\n
Load Balancing<\/h2>\n\n\n\n
1). Create a new Load Balancer in your IONOS Cloud Panel<\/p>\n\n\n\n
Assign only your 2 Web Servers to it<\/p>\n\n\n\n
2). Configure it how you want but my preferred settings are: <\/p>\n\n\n\n
Health Check: ICMP Test ( 5s ) \nPersistence:No\nBalancing procedure: Round Robin<\/code><\/pre>\n\n\n\nIf you are running a online shop you will want to have Persistence enabled to ensure a better online shop experience.<\/p>\n\n\n\n
3). Update your Website’s DNS A record to point to the new Load Balancer IP.<\/p>\n\n\n\n
Conclusion of Part 2<\/h2>\n\n\n\n
You have now created a scalable cluster of 3 servers.<\/p>\n\n\n\n
In the future if you need more or less resources for Apache you can clone or remove one of your Web Servers . Make sure to add them to the Private Network or Load Balancer if adding more and configure the LAN interface on a new IP as well.<\/p>\n\n\n\n
In Part 3 we will explore creating a scalable MySQL Cluster to handle increased MySQL load as well.<\/p>\n","protected":false},"excerpt":{"rendered":"
Scaling In Part 2 we will further scale your website to use 3 servers with a Load Balancer, Private Network, and Shared Storage. One Server will act as the MySQL Server while the other 2 will Load Balance to handle Web requests. Shared Storage 1). In the IONOS Cloud Panel go to Infrastructure > Shared…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,4,1],"tags":[],"_links":{"self":[{"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/posts\/385"}],"collection":[{"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/comments?post=385"}],"version-history":[{"count":30,"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/posts\/385\/revisions"}],"predecessor-version":[{"id":525,"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/posts\/385\/revisions\/525"}],"wp:attachment":[{"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/media?parent=385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/categories?post=385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server-help.org\/index.php\/wp-json\/wp\/v2\/tags?post=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}