How to solve problem Openssl libssl.so.1.1 not found on your system such as centos, ubuntu. Installing openssl missing depens libssl.so.1.1 not found and libcrypto.so.1.1 not found. Openssl libssl.so.1.1 not found problem as below: [huupv@huupv ~]$ ldd /usr/bin/openssl     linux-vdso.so.1 (0x00007ffe185e6000)     libssl.so.1.1 => => not found     libcrypto.so.1.1 => => not found     libz.so.1 => /lib64/libz.so.1 (0x00007fc3ca6f4000)     libdl.so.2 => /lib64/libdl.so.2 (0x00007fc3ca4f0000)     libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fc3ca2d2000)     libc.so.6 => /lib64/libc.so.6 (0x00007fc3c9f1c000)     /lib64/ld-linux-x86-64.so.2 (0x00007fc3cb2a1000) Openssl libssl.so.1.1 not found solve problem sudo ln -s /usr/local/lib64/libssl.so.1.1 /usr/lib64/libssl.so.1.1 sudo ln -s /usr/local/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1 The result, Openssl libssl.so.1.1 not found solve problem [huupv@huupv ~]$ ldd /usr/bin/openssl     li

In this tutorial, To use sed command regex such as: Lines starting from A till B printed, how to print between A line to B line , so on. sed command regex example The content sed_test file as picture below: Lines starting from 10 line till 15 line printed  [huupv@huupv ~]$ sed -n '10,12p' sed_test The output as below:     10    operator:x:11:0:operator:/root:/sbin/nologin     11    games:x:12:100:games:/usr/games:/sbin/nologin     12    ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin How to Lines starting from 10 line till end line printed  [huupv@huupv ~]$ sed -n '10,$p' sed_test  The output as picture below: Conclusion   Thought the article, you can printed line to line of file use sed command. How to Lines starting from A line till end line printed 

In this tutorial, I setup and Configure Postfix to use Gmail as a Mail Relay with 587 port. OS : Centos User : root Install postfix yum install postfix mailx cyrus-sasl cyrus-sasl-plain To configure postfix to use Gmail as a Mail Relay vi /etc/postfix/main.cf Add or modify the following as below: #To use smpt gmail with 587 port relayhost = [smtp.gmail.com]:587 smtp_use_tls = yes smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt smtp_tls_security_level = encrypt # Location of CA certificates smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt To configure Gmail authentication vi /etc/postfix/sasl_passwd Add the line as below: [smtp.gmail.com]:587    [email protected]:password Running commands as below: chmod 600 /etc/postfix/sasl_passwd chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db postmap /etc/postfix/sasl_pas

In this tutorial, How to use nginx redirect all http to https. All traffic http redirect to https for your website. How to do it..... For example, nginx.conf file for your website     server {             listen 80;             listen [::]:80;             if ($host = www.huuphan.com) {                return 301 https://$host$request_uri;            }             if ($host = huuphan.com) {               return 301 https://$host$request_uri;             }             server_name www.huuphan.com huuphan.com;             return 444;             #return 301 https://$server_name$request_uri;     }     server {             listen 443 ssl http2;             listen [::]:443 ssl http2;             server_name www.huuphan.com huuphan.com;             access_log off;             error_log /path/to/logs/error.log;             root /path/to/webroot;             index index.php index.html index.htm;             location / {                try_files $uri $uri/ /index.php?$