Soluții

Backup automat zilnic pentru documente importante

1. Problema identificată

Pierderile de date pot apărea din mai multe cauze: defecțiuni hardware, atacuri malware, ștergeri accidentale sau erori umane. În lipsa unui backup regulat, recuperarea documentelor poate fi imposibilă sau costisitoare.

2. Soluția propusă

Implementarea unui script de backup automat care, la o oră prestabilită, copiază toate documentele dintr-un folder ales către:

  • un hard disk extern sau un serviciu cloud securizat (Google Drive, OneDrive, Dropbox).

Scriptul poate fi configurat pe Windows (cu PowerShell) sau Linux (cu cron + rsync).

3. Pași de implementare

Windows – exemplu cu PowerShell:

powershell
robocopy "C:\Documente" "D:\Backup" /MIR

(Comanda copiază conținutul folderului „Documente” pe D:\Backup, păstrând structura)

Linux – exemplu cu rsync:

rsync -av --delete /home/user/Documente /mnt/backup/

4. Beneficii

  • Protejarea datelor împotriva pierderii

  • Eliminarea necesității unui backup manual

  • Restaurarea rapidă a documentelor în caz de incidente.

[mai mult...]

How to scan for weak passwords with Hydra

Hydra is a parallelized login cracker which supports numerous protocols to attack. It is very fast and flexible, and new modules are easy to add. This tool makes it possible for researchers and security consultants to show how easy it would be to gain unauthorized access to a system remotely.

It supports: Cisco AAA, Cisco auth, Cisco enable, CVS, FTP, HTTP(S)-FORM-GET, HTTP(S)-FORM-POST, HTTP(S)-GET, HTTP(S)-HEAD, HTTP-Proxy, ICQ, IMAP, IRC, LDAP, MS-SQL, MySQL, NNTP, Oracle Listener, Oracle SID, PC-Anywhere, PC-NFS, POP3, PostgreSQL, RDP, Rexec, Rlogin, Rsh, SIP, SMB(NT), SMTP, SMTP Enum, SNMP v1+v2+v3, SOCKS5, SSH (v1 and v2), SSHKEY, Subversion, Teamspeak (TS2), Telnet, VMware-Auth, VNC and XMPP.

Installed size: 956 KB
How to install: sudo apt install hydra

[mai mult...]

Configuring a secure private network on Windows 11 using Built-in VPN and Multi-Factor Authentication

In today’s context, network security is a top priority. The increase in cyberattacks, data leaks, and traffic interception makes using a VPN (Virtual Private Network) and Multi-Factor Authentication (MFA) essential for both workplace and personal use.

Windows 11 natively supports VPN configuration and allows enabling MFA through a Microsoft account without third-party apps. This project demonstrates the steps to configure a secure VPN connection in Windows 11 and activate MFA, ensuring data protection and traffic confidentiality.

[mai mult...]

How to optimize (overclock/undervolt) your amd sapphire gpu using SAPPHIRE TriXX app

Download & Install Sapphire TriXX

  1. Go to the official Sapphire site:
    https://www.sapphiretech.com/en/software
  2. Scroll to SAPPHIRE TriXX and click Download (make sure it’s the latest version).
  3. Open the downloaded .exe file and follow the on-screen instructions:
    • Accept the license agreement
    • Choose installation folder (default is fine)
    • Let it install required drivers/components if prompted
  4. Once installed, launch TriXX from your desktop or Start Menu
  5. First Launch Setup
  • Allow permissions: Windows may ask for admin permission — click Yes
  • Select your GPU (if you have multiple)
  • Familiarize yourself with the tabs:
    • Hardware Monitor / Info → Real-time GPU stats (temps, usage, fan RPM, clocks)
    • Overclocking → Adjust core/memory clock, voltage, and power limit
    • Fan Control → Set auto, fixed, or custom fan curves
    • TriXX Boost → Resolution scaling + Radeon Image Sharpening
    • Profiles → Save and load settings.
  1. Using TriXX to Optimize
  2. Monitor Your GPU
  • Go to Info tab → watch temperatures, fan speed, and clock speeds while gaming or running a benchmark
  • This baseline helps you know how much headroom you have for overclocking
  1. Overclock for Performance
  1. Go to Overclocking tab
  2. Increase Core Clock in small increments (+25–50 MHz)
  3. Do the same with Memory Clock
  4. Optionally increase Board Power Limit (+10–20%)
  5. Apply settings, then test with a benchmark or a demanding game
  6. If stable, repeat; if unstable (crashes/artifacts), lower settings slightly.

Tip: Keep GPU temps below 80–85 °C for long-term safety.

  1. Undervolt for Efficiency (Optional)
  • In Overclocking tab, lower VDDC (Voltage) slightly while keeping clocks stable
  • This reduces heat and noise, but may require trial and error
  1. Control Fans
  1. Go to Fan Control tab.
  2. Choose:
    • Automatic → GPU manages fans
    • Fixed → Constant speed (louder, but stable temps)
    • Custom Curve → Your own temperature-to-RPM mapping
  3. Test by running a game to check noise vs. temperature balance.
  1. Boost FPS with TriXX Boost
  1. Go to TriXX Boost tab
  2. Enable TriXX Boost
  3. Choose a slightly lower resolution (e.g., 85–90% of native) with Radeon Image Sharpening ON
  4. Launch your game — you should see a noticeable FPS bump.
  1. Save Profiles
  • In Profiles tab, save different setups:
    • Max OC → For gaming sessions
    • Quiet Mode → Lower fan noise for everyday use
    • Default → Stock settings.
  1. Testing & Stability Checks
  • Use tools like FurMark, 3DMark, or demanding games to stress-test.
  • Watch for:
    • Screen artifacts (weird lines/shapes)
    • Crashes
    • Overheating
  • If problems occur, lower your OC or voltage changes.
  1. Maintenance
  • Keep TriXX updated from the official site.
  • Clean your GPU fans every few months to maintain cooling efficiency.
[mai mult...]