Administración de sistemas Jobs

I have been asked to produce a clear, accurate map of a small K-12 school / church network before we move on to a later firewall project. The immediate objective is to discover every device on both subnets (/24 and /16), identify the HP switches, the Comcast-supplied modem, and the wireless access points, then show exactly what is plugged into every switch port. My plan is to run LDWin first; however, I am not very comfortable with Wireshark or alternative discovery utilities and would like step-by-step guidance on the best toolset and workflow so the process is repeatable for staff. No Cisco gear is in play, and the dead on-prem server will not be replaced, so there is no AD or local DNS to query. I need help from you: • How to get verified inventory of all switches, routers...

I’m looking for an experienced engineer to step in as my on-call partner across the entire stack of our small-to-mid-size environment. The immediate focus is threefold: 1. Network management Our switches, routers, and firewalls need continuous monitoring, tidy configuration control, and rapid incident response. You’ll fine-tune alerts, optimise configurations, and jump on any outages or performance dips the moment they surface. 2. Windows server maintenance The core workload runs on Windows Server. I need regular patching, backup verification, performance checks, and clear remediation plans when something misbehaves. Familiarity with Active Directory, Group Policy, and PowerShell scripting will make daily upkeep far smoother. 3. Cloud services Several workload...

I already have a clean Linux server reserved for n8n and need an expert who can take it from first boot to a fully operational, self-hosted automation hub. The goal is to build a reliable environment where I can design complex, client-facing workflows and handle routine data-integration jobs without worrying about stability, scaling, or security. You will: • Install and harden n8n on the Linux host (SSL, reverse proxy, backups, environment variables). • Configure user management, logging, and version-controlled deployment so I can push updates safely. • Build at least two sample workflows that demonstrate 1) seamless data transfer between systems and 2) a marketing-automation sequence, showing me the key nodes, triggers, and error-handling patterns. • Document ...

I am looking to revamp my existing website, to reflect a more premium, luxury brand for bungalow construction and project management. Scope of Work: Visual Facelift: Modernize the UI/UX with high-quality imagery, drone video backgrounds, and a mobile-responsive layout that emphasizes luxury and trust. Cost Calculator: Build a custom lead-generation tool that provides a rough construction estimate based on square footage and material quality. SEO & Performance: Ensure fast loading speeds and optimize for local keywords

I need help troubleshooting DNS issues, specifically with DKIM. Ideal Skills and Experience: - Expertise in DNS and DKIM setup - Experience with various DNS records (A, MX, CNAME) - Problem-solving skills for DNS-related issues - Familiarity with email authentication protocols

My DirectAdmin server hosts several domains whose SSL certificates are about to expire, and the automatic renewal process keeps throwing errors. I need a professional who already knows the quirks of DirectAdmin to step in, diagnose why the renewal is failing, and get every domain back to a clean, padlock-green state. Here’s what I expect: • All current certificates renewed (Let’s Encrypt or existing CA, whichever is appropriate) for every domain on the server. • Verification that each site loads over HTTPS without browser warnings. • Any mis-configured redirects or mixed-content issues resolved so the lock icon stays solid. • A short, plain-English note explaining what was fixed and how future renewals will run smoothly. Please tell me about your h...

I already have Proxmox VE 9 installed on an OVH dedicated box; I now need an experienced hand to bring the deployment to production-ready status. The job centres on three areas: • Storage – carve up the local disks into a resilient ZFS pool and document the exact pool layout and scrub schedule. • Networking – create a clean bridged setup with VLANs so that I can segment guests appropriately while keeping OVH’s network expectations intact (failover MACs, gateway handling, etc.). • Security – activate and tune Proxmox’s built-in firewall rules, lock down SSH, and ensure the web console is reachable only from my chosen WAN IPs or over Tailscale/another lightweight VPN. When the work is finished I expect a short, step-by-step write-up detailin...

I need my FortiGate 60 appliance configured so that staff from three separate groups can log in over a Remote Access VPN. Each group belongs to its own user group and must see only the resources assigned to it; nothing should bleed across locations. I will be using straightforward username-and-password authentication for every account. You’ll create the necessary address objects, user groups, policies, and split-tunnel settings so that: • Group A reaches the resources in Location A • Group B reaches the resources in Location B • Group C reaches the resources in Location C Please prepare the FortiClient VPN profile settings I can distribute to users and document any firewall or routing changes you make so I can maintain them later. All work must be done on th...

I’m putting together a new publication and need an experienced creative partner who can guide the entire process—from shaping the concept to delivering press-ready files. I’m still open on the exact format, so whether the final piece becomes a book, magazine, or brochure will depend on what best serves the content and audience we define together. Scope of work • Help me refine the publication’s purpose and target readers. • Recommend the most suitable format and page count. • Develop an editorial structure and visual style guide. • Create engaging content (articles, photos, illustrations) or coordinate with contributors as needed. • Design clean, modern layouts that balance readability with strong visual appeal. • Prepare fin...

I’ve installed a Hirschmann EAGLE40 industrial firewall and now need a specialist to walk it from factory defaults to a production-ready state. The hardware is racked, powered, and reachable through both the web interface and SSH; what’s missing is a solid rule-set, proper interfaces, and clean logging so the device actually protects the plant network rather than just sitting in the traffic path. Here’s what I expect: • You review the current blank configuration, discuss my network layout, and translate that into interface zones, NAT (if required), and a concise set of access rules. • You advise on best-practice hardening for an EAGLE40—admin account lockdown, firmware verification, logging to our Syslog server, and fail-safe settings. • You loa...

I run a computer-centric business that relies on a hybrid setup—part cloud, part on-prem servers—and I need a reliable partner to keep everything humming. Day-to-day, the help I’m after centers on two fronts: tracking down and fixing software glitches before they hurt productivity, and handling the nuts-and-bolts upkeep of our desktops, laptops, printers, and the small server room we still operate. Here’s what that looks like in practice: • Software troubleshooting: isolate crashes, apply patches, resolve compatibility issues across Windows and Linux, and speak with vendors when escalation is required. • Hardware maintenance: swap failing parts, run preventive diagnostics, clean equipment, and advise when a full replacement is more cost-effective. I r...

I’m looking for a marketing partner who can help me lift my brand’s visibility. My priority is marketing (not customer service or education) and the specific objective is to increase brand awareness. To make that happen, I want to concentrate on three complementary channels—social media, email marketing, and content marketing (blogs and articles). Here’s what I need: • A clear, data-backed strategy for how these three channels will work together to reach new audiences. • An editorial and posting calendar that keeps campaigns consistent and on message. • Attention-grabbing social posts, well-crafted email sequences, and authoritative blog or article content that all share a unified voice. • Ongoing performance tracking with concise report...

After moving my sites from RamNode’s cloud hosting to a new VPS, several core services stopped working. WHM and cPanel are installed and accessible, yet there were issues with the site. I changed the mailservers back to cloud hosting. What I need right now is a full review and clean configuration of the server so every component—mail server, FTP service, and DNS including nameserver glue—operates smoothly. Please log in, audit each service, adjust the settings, and document any permanent changes you make. Before I repoint the real nameservers, show me a working preview link or temporary hostname that proves the sites load correctly and email delivers both ways. Please also help me verify the glue records through WHOIS, so include that in your checklist. Deliverable for...

A recent penetration test on my Drupal site came back with several red flags, and I want every one of them closed out quickly and cleanly. Deliverables • Confirmed list of vulnerabilities with proof-of-concept tests • Patched code, updated modules / libraries and configuration changes (committed to Git) • A concise remediation report explaining what was fixed, how, and where • Final clean security scan results or screenshot showing no outstanding issues

I have a fresh Proxmox installation in place and now need an experienced hand to complete the next step: configuring a set of Linux-based virtual machines from the ground up. Your job is to handle the full system setup and configuration workflow—networking, storage assignment, template creation, and any tweaks required so the VMs boot cleanly and are ready for application deployment. Please bring solid, demonstrable experience with the Proxmox VE interface, CLI utilities, and typical KVM/QEMU guest-optimisation practices. Once you’re done I expect: • A working pool of Linux VMs (Debian or Ubuntu preferred, but I’m open to other mainstream distros if you recommend them) • Basic resource limits, bridge/VLAN networking configured, and a brief hand-over note exp...

I’m facing persistent outbound packet loss on my Linux server. The problem appeared a few days ago, right after I upgraded my hosting plan, and it has started to affect production-level traffic. Latency is acceptable and inbound packets arrive cleanly; only the outbound stream is dropping frames. I need someone who can jump in immediately, trace the root cause, and apply a permanent fix. Typical tools for the job might include tcpdump, traceroute, iptables, nftables, netstat, or any monitoring utilities you prefer—as long as the solution is clearly explained and reproducible. Acceptance criteria: • Outbound traffic shows 0 % (or normal-range) packet loss under load tests. • A short summary of what was wrong and the exact commands or configuration changes you app...

I'm looking for an experienced developer to help set up and manage a public DayZ server. Key Requirements: - Expertise in DayZ server setup and management. - Experience with custom mods and settings is a plus. - Ability to provide suggestions for mods and custom settings. Ideal Skills: - Proficiency in server management. - Familiarity with DayZ mods and community preferences. - Strong problem-solving skills and reliability. Please provide a portfolio or examples of previous work.

I manage a small group of VIP users who expect white-glove treatment whenever something goes wrong. Their day-to-day pain points fall into two buckets: • Software installation and configuration: from first-time deployments to tricky patching and plugin conflicts across Windows and macOS. • Connectivity hiccups—specifically frequent disconnections or an outright inability to join the network. I’ll route tickets to you through our help-desk portal (ServiceNow), and you will step in remotely via RDP, AnyDesk or VPN, diagnose, resolve, then document the fix in our knowledge base so the same issue never reaches the escalation queue twice. Clear, jargon-free status updates to the VIP are essential; I measure success by resolution time, user satisfaction scores and clean...