System Administration Jobs

I host my ERPNext instance on Hawk Host and need a small Windows-friendly script that quietly pulls the nightly backup down to my office PC. The server already generates and stores the last seven nightly archives; all I want is to mirror the newest file locally every day at 03:30 Hong Kong time. Key behaviours I need built in • Runs on Windows, launched by the Task Scheduler at 03:30 HKT. • If the machine happens to be off or asleep, the script should run automatically the next time the PC wakes and still pick up the most recent archive. • Local retention is my responsibility, so simply downloading the newest file into a specific folder is enough; no need to delete older copies. • A notification is mandatory: if three consecutive days pass without a successful ...

We are looking for an experienced Zimbra Webmail Specialist to help us install, configure, and optimize a Zimbra email server for professional business email communication. Deliverables expected: • Fully functional Zimbra Webmail running on my chosen OS and domain • SSL certificate installed and tested • Admin credentials provided, with at least one user mailbox created as a proof-of-concept • Can be used as SMTP I’ll supply root/SSH access and any DNS records you need. Please outline your experience with Zimbra deployments and give an estimated timeline for completion.

Our small nonprofit needs reliable, on-call technical support focused exclusively on Windows machines. Day-to-day we handle most routine tasks ourselves, but when new software has to be installed or an existing program suddenly refuses to cooperate, productivity grinds to a halt. I’m looking for a patient, detail-minded professional who can step in remotely, diagnose issues quickly, walk staff through clean installations, and resolve troubleshooting tickets without disrupting our mission-critical work. Typical scenarios include: • Installing licensed applications, updates, or patches on Windows 10/11 desktops and a few laptops. • Fixing installation failures, missing dependencies, or lingering registry remnants after uninstalls. • Clarifying best-practice settings...

I am looking for someone who can supply a permanent Windows-based VPS or RDP account that never incurs a fee. The machine must offer at least 4 GB RAM, 200 GB or more of storage, and a full-duplex 1 Gbps connection. I will be running light-to-medium desktop applications on it and using it as a secure data-storage node, so consistent performance and uptime are essential. Because I access the machine remotely, please have standard remote-access tools already enabled and ready to go the moment you hand over the credentials. No credit-card activation, hidden renewal, or pay-as-you-go arrangement can be involved; I need a truly cost-free, always-on server that will stay online 24 / 7 for the lifetime of the hardware or service. Deliverables • Fully operational Windows VPS / RDP login...

Hi I will share the details with the shortlisted candidates. Thanks

NO PLACEHOLDERS. Do not insert a placeholder: please read the project details carefully because here are all the details you need to make an accurate estimation. I am seeking targeted assistance to install Kalidroid (the Kali Linux environment for Android) on my Google Pixel 10a, which is already running the latest build of GrapheneOS. Objective – Create a stable setup for security testing, with all key Kali tools fully functional, without compromising GrapheneOS's security defenses. What I expect 1. A step-by-step guide (or video-call support) for flashing or importing the Kalidroid image. 2. Configuration of network settings, permissions, and repositories to ensure penetration testing packages update correctly. 3. Final verification: running specific utilities (e.g., nmap,...

I need an experienced network-oriented systems engineer to install and fully configure a Broadband Network Gateway (BNG) that will run on a Linux platform. The exact application mix is still open, but the core requirement is a stable, production-ready BNG that can authenticate subscribers, shape traffic, collect usage data, and hand off sessions cleanly to my existing upstream routers. You will decide the most appropriate Linux distribution and tool-chain, document every step, and leave the server in a state where I can add or remove service modules later without downtime. A strong background with PPPoE, DHCP, RADIUS, IPoE, QoS policies, and high-throughput tuning under Linux is essential. Deliverables • A clean Linux installation, hardened and updated • Fully operational BNG...

NO PLACEHOLDERS. Do not insert a placeholder: please read the project details carefully because here are all the details you need to make an accurate estimation. I need to identify, install, and configure open-source software that allows me to remotely manage IoT devices without using an MQTT network. Currently, I intend to manage control units that oversee already installed environmental sensors performing: • temperature monitoring • humidity detection • air quality measurement The connectivity currently available on the devices is based on FTP; the control units are equipped with a telephone SIM. The goal is to have a dashboard that allows for viewing device status, monitoring data flow from devices, performing tasks on devices (such as firmware updates), etc. Envi...