The problem is that "su" has to be suid in order to read from the shadow file of your system to verify the password you have given.
By issuing "chmod 777 *" you deleted the suid bit (777 = 0777).
You have to reset this bit by executing "chmod 4755 /bin/su".
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APACHE - failed to start
[On] Red Hat Enterprise Linux Server release 7.4 (Maipo) Apache was not running and attempt to start the httpd service failed. The natural t...
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[Tested On] CentOS Linux release 7.4.1708 (Core) # wget https://ftp.postgresql.org/pub/source/v9.6.6/postgresql-9.6.6.tar.gz # tar xvzf post...
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Your new IT project requires you to setup postgresql database and most of the time we get to the postgresql website and download the version...
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# openssl s_client -connect localhost:443