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Igor Oseledko
Timeline
Scripting
Commands & Shells
Randomizing Filenames
Commands & Shells
Finding Gaps in Timestamps
Commands & Shells
Coronavirus Stats in Bash
Commands & Shells
Updating Lynis
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Converting Geofency Data to Google Maps
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Squid
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Machine Learning
The Black Box on the Org Chart
Machine Learning
The Post-Language Future of AI Systems
Machine Learning
Outsmarted by a River, a Rope, and an Anchor
Machine Learning
The AI Bubble Isn’t a Bubble. It’s a Trap.
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Filesystems
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Commands & Shells
Randomizing Filenames
Security
To Mask or Not to Mask
Security
Checking Linux Account Password
Security
The Coronavirus Discussion
Monitoring
All
Performance
Processes
Social Networks
Facebook
Instagram
Twitter
Commands & Shells
Finding Gaps in Timestamps
Commands & Shells
Converting Geofency Data to Google Maps
Performance
Analyzing atop Logs with atopsar
Commands & Shells
Verifying SNMP Connectivity on Multiple Hosts
Networking
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Email
Networking
Validating HTTPS Cache Peers for Squid
Commands & Shells
Verifying SNMP Connectivity on Multiple Hosts
Commands & Shells
Bulk-Adding IPTables Rules
Networking
Automatically Block Frequent Visitors
Photography
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Events
Garden
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Photography
Canyonlands National Park, Utah
Photography
Yellowstone National Park, Wyoming
Photography
Sun Juan Mountains, Colorado
Commands & Shells
Detecting Blurry Photos with ImageMagick
Home
2026
Archives
Infotech
finger: The Protocol That Told Strangers Everything About You
Igor
-
March 26, 2026
Infotech
The X Window System: Remote GUIs Built on a Protocol Nobody...
Igor
-
March 26, 2026
Infotech
lsof: The Command That Reveals Everything Your Processes Are Up To
Igor
-
March 26, 2026
Infotech
The Bourne Shell: The One That Started the Family Feud
Igor
-
March 26, 2026
Infotech
chroot: The Jail That Isn’t Really a Jail
Igor
-
March 26, 2026
Infotech
sed: The Stream Editor That Operates Entirely Without Seeing the Whole...
Igor
-
March 26, 2026
Infotech
inode: The Invisible Bureaucrat Running Every Unix Filesystem
Igor
-
March 26, 2026
Infotech
UUCP and Bang Paths: Routing Email Like a Treasure Map
Igor
-
March 26, 2026
Infotech
The /proc Filesystem: Your Kernel’s Diary, Readable as Text Files
Igor
-
March 26, 2026
Infotech
POSIX: The Standard That Tries to Herd Unix Cats
Igor
-
March 25, 2026
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