All posts by admin

By November 11, 2018

Centos 7X Enable FTP TLS Reference https://linuxconfig.org/setup-secure-proftpd-server-on-centos-7-with-tls Set the port range in /etc/proftpd.conf echo “PassivePorts 49152 65534″ >> /etc/proftpd.conf Open the Firewall ports firewall-cmd –add-port=49152-65534/tcp –permanent firewall-cmd –reload Validation firewall-cmd –list-ports Update the options in /etc/sysconfig/proftpd From PROFTPD_OPTIONS=”” To PROFTPD_OPTIONS=”-DTLS” Verify TLS has been setup in /etc/proftpd.conf TLSEngine on TLSRequired on TLSRSACertificateFile /etc/pki/tls/certs/proftpd.pem TLSRSACertificateKeyFile /etc/pki/tls/certs/proftpd.pem


Read More
By November 11, 2018

Error: Mailbox access error: Panic: file mail-index-sync-keywords.c: assertion failed Cause Corrupted Dovecot index file. Resolution Connect to the server using SSH. Move the file /var/qmail/mailnames/example.com/john.doe/Maildir/dovecot.index: # cd /var/qmail/mailnames/example.com/john.doe/Maildir/ # mv dovecot.index{,.back}


Read More
By October 31, 2018

Error xxxxxx crond: () FAILED to authorize user with PAM (Authentication token is no longer valid; new one required) RUN chage -l This can be due to the user’s password has expired.


Read More
By October 03, 2018

Public DNS Servers Google: Google FAQ 8.8.8.8 8.8.4.4 Level 3 : 4.2.2.2 4.2.2.1 The new kid on the block is Cloudflare 1.1.1.1 1.0.0.1 https://mozilla.cloudflare-dns.com/ https://developers.cloudflare.com/1.1.1.1/dns-over-https/json-format/


Read More
By September 01, 2018

I don’t normally post personal life experiences on this blog. But this is a story that needs to be told. My fiancee’ and I recently went to Baltimore inner harbor. I had to visit University of Maryland to renew my Red Hat Certification. So we booked a room at this well known Hilton hotel. I


Read More
1 2 3 86