防火墙 Jobs

My WordPress site is currently offline after malicious files were discovered on the server. I need it cleaned and brought back online, but more importantly I want to stop this from ever happening again. The immediate focus is firewall and server-side security; user authentication tweaks and data-at-rest encryption can follow once the house is no longer on fire. There are no security plugins installed yet, so you’ll be working from a clean slate. Feel free to recommend and configure the tools you trust most—Wordfence, Sucuri, ModSecurity, Fail2Ban, or a custom stack—as long as the final setup keeps attacks out and performance intact. Acceptance criteria • Every malicious file and injected line of code is removed, with the site fully functional and reachable. &bu...

I’m bringing a new Mikrotik router into service and want the initial network build done right the first time. Your job is to plan and implement the complete setup—interface assignments, WAN/LAN segmentation, DHCP, NAT, basic firewall rules, and any best-practice tweaks that keep the installation secure and future-proof. I will give you remote access to the device (RouterOS current stable release) along with the addressing details and any special VLAN or wireless requirements once we agree on the engagement. I expect clear notes of every change you make so I can maintain the router after hand-over, plus an export of the final configuration for backup. If you have the Mikrotik certification and have set up small to mid-size networks before, this should be a fast, clean project.

My SonicWall firewall needs its VPN function brought back to life, but I no longer have an active licence or support contract to lean on. The goal is simple: Windows-based staff must be able to connect reliably, without drops, and at normal speeds. I can give you full remote access to the appliance, the current configuration file, and a test Windows machine. What I need from you is a clean diagnosis, the necessary CLI or GUI tweaks, and any creative work-arounds that avoid licence-gated features while keeping security tight. If firmware needs to be upgraded or rolled back, please guide me through a safe procedure so we don’t lock ourselves out. Deliverables: • Restored, stable VPN access from at least one Windows PC (I’ll supply the test credentials). • A brief ch...

A recent scan showed a malicious code injection on one of the key pages of my custom-built PHP application, hosted on a dedicated AWS EC2 server. We cleaned the malware and found and patched the loophole. But then it came back and another loophole surfaced. I need an experienced security specialist to scan the entire server for malware and set up ongoing monitoring so this doesn’t resurface. Scope of work • Remove every trace of the current infection from both codebase and filesystem. • Audit the full stack, server configuration, and access logs to pinpoint the exact attack vector. • Patch or re-architect the vulnerable component you identify, then harden the server (SSH, firewall, file permissions, intrusion detection, etc.). • Deploy continuous monitoring and a...