All posts by admin

By February 17, 2019

This week I decided to do some Docker Swarm and Kubernetes labs. The Docker Swarm lab went very well and I was able to get a application up and running under 15 minutes. The Kubernetes ‘installation’ not up and running. The installation took me 3 hours due to multiple errors with the server environment. Below

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By December 27, 2018

Error H.264 (High Profile) decoder is required to play the file, but is not installed. H.264 or MPEG-4 Part 10, Advanced Video Coding (MPEG-4 AVC) is a block-oriented motion-compensation-based video compression standard. As of 2014, it is one of the most commonly used formats for the recording, compression, and distribution of video contentH Solution on Fedora

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By December 21, 2018

Panic: file mail-index-sync-keywords.c: line 227 (keywords_update_records): assertion failed: (data_offset >= sizeof(struct mail_index_record)) Solution The error can be fixed by removing the user file under spool directory. In our case the path was /var/spool/mail Then rm -rf <user>

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By November 11, 2018

Centos 7X Enable FTP TLS Reference 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

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