Charles Fisher

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Charles Fisher has an electrical engineering degree from the University of Iowa and works as a systems and database administrator for a Fortune 500 mining and manufacturing corporation.

Articles by Charles Fisher
SFTP Port Forwarding: Enabling Suppressed Functionality
February 22, 2023
Fault-Tolerant SFTP scripting - Retry Failed Transfers Automatically
January 4, 2023
SQLite for Secrecy Management - Tools and Methods
September 28, 2022
SSH Key Rotation with the POSIX Shell - Sunset Nears for Elderly Keys
December 7, 2021
In PuTTY, Scripted Passwords are Exposed Passwords
October 4, 2021
SQLite Extraction of Oracle Tables Tools, Methods and Pitfalls
July 20, 2021
Parallel shells with xargs: Utilize all your cpu cores on UNIX and Windows
February 16, 2021
Btrfs on CentOS: Living with Loopback
October 20, 2020
Oracle Linux on Btrfs for the Raspberry Pi
July 22, 2019
Encrypting NFSv4 with Stunnel TLS
August 13, 2018
Oracle Patches Spectre for Red Hat
March 15, 2018
ZFS for Linux
February 12, 2018
Meltdown/Spectre Status for Red Hat and Oracle
February 5, 2018
Rapid, Secure Patching: Tools and Methods
January 29, 2018
Linux Filesystem Events with inotify
January 8, 2018
Tor Security for Android and Desktop Linux
April 12, 2017
Flat File Encryption with OpenSSL and GPG
April 4, 2017
smbclient Security for Windows Printing and File Transfer
March 28, 2017
ADUPS Android Malware Infects Barnes & Noble
December 20, 2016
Android Browser Security--What You Haven't Been Told
September 22, 2016
Stunnel Security for Oracle
July 28, 2016
Secure File Transfer
March 24, 2016
Cipher Security: How to harden TLS and SSH
November 23, 2015
Strengthening Diffie-Hellman in SSH and TLS
October 29, 2015
Infinite BusyBox with systemd
May 12, 2015