Private Job for Sergii T.

@AZTURK1

Hi there, I will tighten security on your production CentOS box, applying kernel patches and hardening SSH/firewall with minimal downtime. - Apply latest CentOS security patches and kernel updates; confirm each live service restarts cleanly and pass smoke-tests. - Harden SSH, review and tighten user accounts, remove unnecessary packages/daemons/default ports; configure automated update notifications and deliver a short hand-off report. - backup checkpoint Skills: ✅ CentOS ✅ SSH & firewall configuration ✅ automated update notifications ✅ network security hardening ✅ production VPS / server hosting Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 Available to start during your maintenance window , Should I apply kernel updates and reboot during the scheduled maintenance window, or run them on staging first? , €96 fixed, 1 day.

@MRARIFAKRAM

As an astute IT professional with a staggering 8-year experience in system administration and software engineering, I believe I am the most suitable candidate for getting your CentOS server up to its utmost secure state. Over the years, I have developed a formidable skill set that encompasses various programming languages and adeptness in optimizing performance, ensuring security, and delivering exceptional user experiences.

@anirudhat

Hardening a production CentOS box with live services is something I handle regularly — the key is methodical patching with service verification after each step so nothing stays down. My approach: I'll start with a full `yum --security update` pass, rebooting into the latest kernel during your maintenance window while confirming every service comes back clean. Then I'll audit your firewall rules (iptables/firewalld), lock down SSH (key-only auth, non-default port, fail2ban), remove unnecessary packages and daemons, and close any default ports that aren't serving traffic. For ongoing alerting, I'll configure `yum-cron` in notification-only mode so you get emails on critical patches without blind auto-installs. Every command gets documented as I go, and you'll get a clean handoff report you can replay on your staging server. Ready to start as soon as we schedule the window.

@android2014213

Hi, I can help you patched production Linux server. I am experienced in Linux server administration in production. Thanks Ashish A.

@extreamcode

Hello Sergii, Your server already tells the real story: the hidden risk isn’t just stale packages, it’s the small gaps that quietly widen the attack surface over time. I can help you tighten CentOS security carefully, keep downtime minimal, and make sure every service comes back cleanly after patching. I’ve handled Linux server hardening, SSH/firewall review, package cleanup, and controlled update workflows on live environments, and I’ll work through this in a maintenance window with clear documentation at each step. I’ll also set up update notifications so you stay informed about critical patches without enabling blind auto-installs. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Could you please share the CentOS version, the list of active services, and whether you prefer firewalld or iptables for the current setup? Also, do you want me to keep a rollback snapshot or package list before changes? Looking forward to your reply so we can finalize the exact plan. Best regards, Asad

@myGigs

Hello! I'll patch your CentOS server with the latest security and kernel updates, harden your SSH config, firewall rules, and user accounts, strip out unnecessary packages and daemons, set up automated patch notifications, and deliver a full hand-off report documenting every change and command so you can replicate it on staging. Any preferred maintenance window I should plan around?

@kamran2012

I can help with this, I will apply all pending CentOS security patches and kernel updates, harden SSH and firewall configs, strip unnecessary packages and daemons, and set up automated patch notifications — with a documented hand-off report covering every change. Before touching anything, I will snapshot the current iptables rules and running services so we have an instant rollback path if any service fails to restart cleanly after updates. Questions: 1) Which CentOS version — 7 or Stream 8/9? 2) Are the live services behind a load balancer, or is this a single-node setup? Looking forward to talking through the details. Kamran

@SkillCrafts

I can help you achieve a robust security posture for your CentOS server, similar to how I've successfully implemented automated patching and hardened configurations for critical production environments, ensuring minimal downtime. My approach involves a phased rollout. First, I'll conduct a thorough inventory of installed packages and running services. Then, I'll meticulously apply CentOS security patches and kernel updates, verifying service functionality after each step. Following this, I'll review and harden `firewalld` rules, SSH daemon configurations (`sshd_config`), and user account policies. Finally, I'll identify and remove or disable any non-essential packages or daemons, and set up automated update notifications using `yum-cron` or a similar mechanism. To ensure a seamless transition, would you prefer a specific maintenance window for the initial patching, or is a rolling update with immediate rollback capabilities acceptable? I'm available to discuss your specific concerns and tailor this plan further.

@techsty2014

Hello, We will patch your CentOS server, harden SSH and firewall configs, and strip unnecessary packages and daemons, all with minimal downtime to your live services. For kernel updates, we will stage a tested reboot plan so each service restarts in the correct order. Automated yum-cron notifications will alert you to critical patches without blind installs. A couple of quick things to confirm: 1) Which CentOS version is running (7 or 8/Stream)? 2) Are the live services managed by systemd or a custom init setup? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to potentially working together. Thanks, Faizan

@najibe1

Hello, I’m an IT expert with over 20 years of experience in the industry. I hold certifications as a Cisco Certified Networking Professional (300-100 and 300-115), Linux Certified Professional (LPI 101, 102, 103), Red Hat Certified System Administrator, VMware Certified Professional (versions 4, 5, and 5.5), as well as being a Microsoft System Administrator/Engineer from 2003 to 2022 and AZ104

@NEHABHAT92

With over 9+ years of experience in the IT industry, I bring a vast set of skills that make me the ideal candidate for this project. In particular, my proficiency in automation aligns perfectly with your need to configure automated update notifications. This will ensure you are promptly alerted about future critical patches without everything auto-installing blindly. Not only will I automate this process but I’ll provide comprehensive documentation so that you can replicate it on your staging server later. Moreover, my expertise in web and Mobile development is an added advantage as it equips me with a deep understanding of Linux systems, their security challenges and effective solutions. While your immediate need is to apply the latest CentOS security patches and kernel updates, I'll go above and beyond by reviewing existing firewall, SSH and user-account configurations to harden them where needed. Additionally, I'll also disable or remove any unnecessary packages, daemons or default ports to reduce the attack surface. In conclusion, by entrusting your project to me, you're not just getting a freelancer who'll stick to the security-and-updates remit but rather one who'll actively search for critical areas outside this scope within your system and address them accordingly. This makes for a comprehensive, efficient and effective approach towards tightening your server's security posture. I look forward to discussin

@nintysix96

Rough figures above are placeholders until we nail down the maintenance window and confirm what's already in place on the server. From the brief, you've got a production CentOS box running live services and you need it patched, hardened, and tidied up, all without taking things offline longer than necessary. The goal is a tighter security posture: firewall and SSH locked down, unnecessary packages stripped out, automated patch alerts configured, and a clear hand-off report so you can mirror the whole process on staging yourself. Here's how we'd approach this: - Patch cycle: Apply latest CentOS security updates and kernel patches inside your agreed maintenance window, verifying each service comes back healthy before moving on. - SSH and firewall hardening: Review sshd_config, disable root login and password auth if not already done, audit iptables/firewalld rules and close anything that shouldn't be open. - Attack surface cleanup: Audit running daemons and installed packages with chkconfig/systemctl and rpm, disable or remove anything not actively needed. - Patch alerting: Set up yum-cron or dnf-automatic in notify-only mode so you get email alerts on critical updates without blind auto-installs. - Documentation and hand-off: Step-by-step notes throughout, plus a short written summary of every change made, commands run, and any flagged items outside scope for your call on next steps. Once we've had a quick chat about the window timing and any access specifics, we'll put together a written scope doc with the exact steps planned and a firm price. Want to jump on a quick call this week to walk through the schedule? Best, 96 Studio

@marcosfermin

Howdy! Your project is a strong fit for my background. I have spent years hardening production Linux environments, managing patch cycles on CentOS and RHEL systems, and tightening SSH, firewall, and user account configurations on live servers where downtime is not an option. I work methodically through each change, verify service health after every step, and document commands and rationale as I go so you can replicate the exact process on staging without guesswork. Thank you. Marcos.

@joshuak485

The server needs a careful hardening pass without interrupting live services. I can help you lock down the CentOS box and keep it current. Your goal is to tighten security, apply patches, and keep downtime minimal. A key risk here is a package or kernel update that changes service behavior after reboot, so I would verify each service before moving on. I would work through the updates in a maintenance window, then check service status, firewall rules, SSH settings, users, and enabled daemons with commands like yum, systemctl, firewall-cmd, and ss. I would document each step as I go, and set up update notifications so you get alerts for critical fixes without blind auto installs. I can align with your time zone and work during the window you choose. Q: Do you want the update alerts limited to security advisories only, or should they include all critical CentOS package updates? Let us schedule a quick chat and get the hardening plan in place.

@letswork92

Hello Sergii, I understand you're looking to enhance the security posture of your production Linux server running on CentOS, while ensuring minimal downtime for your live services. With over 12 years of experience in system administration and security hardening, I can effectively address these needs. My approach will include applying the latest CentOS security patches and kernel updates, followed by a thorough review of your firewall, SSH configurations, and user accounts to ensure they are optimally secured. I will also identify and remove any unnecessary packages or daemons that could pose security risks. Additionally, setting up automated update notifications is essential for maintaining future security awareness without auto-installing updates blindly. I will document each step meticulously so you can replicate the process on your staging server later. Just to clarify, how soon are you looking to implement these changes? Looking forward to collaborating with you on this project! Best regards, [Your Name]

@generosoiii

Hello, Your live CentOS server needs security patching and hardening without disrupting active services. I have spent the last 7 years solving exactly this type of Linux production maintenance issue. I will first audit services, users, SSH, firewall rules, open ports, and package state, then apply CentOS security/kernel updates inside the maintenance window, reboot only if needed, and perform Troubleshooting until every service is confirmed healthy. I will remove unnecessary daemons, configure update notifications with safe Automation rather than blind auto-installs, and document commands clearly so the process can also guide your Ubuntu or staging procedures. Which services are most critical to verify immediately after patching, and do you already have a preferred maintenance window? Best regards, Generoso III

@MIndlabsAi6

Hey there Sergii, I'm Vishal Maharaj, with 25 years of experience in Automation, Ubuntu, Network Security, System Administration, and Troubleshooting, based in Perth, Australia. I'm passionate about taking on your project to secure and patch your CentOS Linux server efficiently. I understand the urgency of minimizing downtime for your live services. My approach involves applying the latest security patches and kernel updates, reviewing and hardening configurations, and setting up automated update notifications for future critical patches. Let's discuss further details in chat. Cheers, Vishal Maharaj

@johnedwardl

Hi, I will enhance the security posture of your CentOS server while ensuring minimal downtime. With extensive experience in securing production Linux environments, I’ll apply the latest security patches and kernel updates, ensuring all services are operational post-update. I'll conduct a thorough review of your firewall settings, SSH configurations, and user accounts, implementing necessary hardening measures to mitigate risk. I’ll also identify and disable any unnecessary packages or daemons that could expose vulnerabilities. Automated update notifications will be configured to keep you informed about critical patches without risking untested auto-installs. After the work is complete, I’ll provide a concise report summarizing the changes made and any recommendations for further action. To get started, we can schedule a maintenance window for SSH access. I’ll document each step for easy replication on your staging server. If I identify any critical issues beyond our current scope, I will flag them for discussion. Looking forward to securing your server effectively. Thank you.

@zohaibali77

? Hello, The most important part of this project is not applying updates—it's ensuring every production service remains stable and available after the security hardening process. ? My approach would begin with a full assessment of the server's current state, running services, firewall rules, SSH configuration, installed packages, and user access before making any changes. This minimizes risk and helps avoid unexpected downtime during the maintenance window. ✔ CentOS security patching and updates ✔ Kernel update planning and verification ✔ Firewall and SSH hardening ✔ User account and privilege review ✔ Removal of unnecessary packages/services ✔ Security-focused configuration audit ✔ Critical patch notification setup ✔ Detailed hand-off documentation ? Every change will be documented, including commands executed, configuration modifications, service validation steps, and rollback considerations where appropriate. ❓ One question: Which CentOS version is currently running (CentOS 7, Stream 8, Stream 9, or another variant), and are the hosted services containerized or running directly on the OS? ? I would be happy to review the environment and help ensure the server is secure, patched, and ready for long-term maintenance with minimal disruption. Best regards