file path Archives

Tech Optimizer

June 6, 2026

PostgreSQL Dump and Restore: The Complete pg_dump Guide

pg_dump is a utility for exporting a PostgreSQL database into a file, which can be restored on the same or different servers. It exports a single database's tables, views, sequences, functions, indexes, triggers, and in-database grants but does not include roles, tablespaces, or server-level configurations. To capture global objects, pg_dumpall --globals-only should be executed prior to the per-database dump. pg_dump requires CONNECT and SELECT privileges on all tables and sequences within the target database, and a dedicated backup role is sufficient for single-database dumps, while superuser access is needed for global objects. pg_dump supports various output formats: plain SQL (.sql), custom binary (.dump), directory of files, and tar archive (.tar), each with different capabilities for restoration and compression. The custom format allows for selective and parallel restoration. For non-interactive use, credentials can be stored in a .pgpass file or passed via the PGPASSWORD environment variable. Restoration methods depend on the dump format: psql is used for plain SQL files, while pg_restore is used for custom and directory formats. The restoration process requires the target database to be created beforehand. Version mismatches between pg_dump and pg_restore can lead to failures, so it's essential to ensure that the binaries are version-matched. In Docker, pg_dump and pg_restore can be executed within containers, but care must be taken to manage credentials and ensure version compatibility. Exit codes from pg_dump should be checked to confirm successful operations.

Tech Optimizer

June 6, 2026

Hackers Use Fake Purchase Orders to Deploy JS.MonoGlyphRAT Targeting US Enterprises

Researchers have identified a new malware called JS.MonoGlyphRAT, which disguises itself as business documents to infiltrate corporate networks. It is primarily spread through phishing emails targeting various sectors in the U.S. and has been reported in countries like Germany, Sweden, and Australia. The malware is classified as "Unknown malware" on threat intelligence platforms, making traditional antivirus solutions ineffective. It establishes a persistent presence in the network by executing a JavaScript file and communicating with command-and-control (C2) servers over HTTP. Key indicators of compromise include unusual HTTP traffic, registry changes, and the execution of specific JavaScript files. The malware can download additional payloads and execute commands without leaving traces on disk. Indicators of compromise include specific IP addresses, URLs, file hashes, and registry keys associated with the malware's operation.

Winsage

April 19, 2026

Fix: “Cannot Complete the Archive Extraction” in Windows

Users may encounter the error message “Cannot complete the archive extraction wizard” when using the built-in Windows extractor for ZIP or RAR files, indicating limitations of this tool. Common issues include damaged archives, incompatible compression methods, long file paths, restricted extraction locations, insufficient disk space, or interruptions from security software. To address these challenges, users can: 1. Use third-party extractors like 7-Zip, WinRAR, or PeaZip for better compatibility and success rates. 2. Check if the archive is corrupted and re-download it if necessary, ensuring the download completes fully. 3. Shorten the file path by moving the archive to a simpler directory to avoid exceeding path limits. 4. Temporarily disable antivirus or real-time protection, as it may interrupt the extraction process. If problems persist, testing the archive on a different PC can help determine if the issue is with the archive or the current system. If the archive fails on another computer, it is likely corrupted or incomplete, requiring a fresh download or replacement.