Linux Server Hardening & Security

@vili1977

Hello. I would like to help you with secure/update system/update packages/install fail2ban/block bot traffic/stop ddos attacks and optimization memory/php/apache/mysql issue. I have experience. Please read my feedback. Thank you.

@bindmission

Hello, I have 10 years of experience in Linux system administration. I can help you with server hardening and security on Ubuntu and CentOS. I will perform a security audit and configure your firewall. SSH hardening and user access control will be implemented. I will manage patches and set up security monitoring using tools like Fail2ban and SELinux. All changes will be documented thoroughly for your records. Regards, VishnuLal NB*

@kuldeepvk

Hi, I have 10 years of experience and knowledge as system administrator setup and management of different Linux Web Hosting Servers, AWS servers,Cloud Servers, GPU Servers, Server Monitoring, Server Security, Server Optimisation, Mailing Servers, Email Marketing, SSL, DNS, Apache, Nginx, etc with Cpanel, Plesk, Virtualmin or other panels. Services such as cPanel/WHM, Plesk, Virtualmin LAMP Stack, Tomcat, MySQL/MariaDB, Zimbra, Postfix mail server, Mailenable, smarter mail, MS SQL,AWS , etc. Please discuss to start. Thank you

@AZTURK1

Hi there, I understand you need a seasoned Linux System Administrator for comprehensive server hardening. With over 7 years managing secure Ubuntu and CentOS environments, I’m well-equipped to perform your security audit and implement robust protections. - Conduct detailed security audit and vulnerability assessment - Configure firewall rules to enforce strict access controls - Harden SSH with best practices including key-based auth and Fail2ban integration - Manage SELinux policies for enhanced kernel-level security - Implement patch management and continuous security monitoring - Provide clear, detailed documentation of all changes for your records **Skills:** ✅ Linux Server Hardening , Ubuntu & CentOS security practices ✅ Firewall Configuration & Fail2ban , intrusion prevention ✅ SSH Hardening & User Access Control , secure login implementation ✅ SELinux Policy Management , advanced kernel security ✅ Security Monitoring Setup , real-time threat detection tool integration ✅ Documentation , clean, audit-ready change logs **Certificates:** ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m ready to start immediately and deliver a hardened, secure Linux server with full documentation within 2 days. Which Linux distribution and version are you currently using on the server for hardening? Best regards,

@ArchnaAdmin

Hi, I have 8+ years of experience as a System Administrator with hands-on expertise in setting up and managing Linux web hosting and cloud servers, including server security, monitoring, and performance optimization. I work with Apache, Nginx, DNS, SSL, Cloudflare configuration and hosting panels such as cPanel/WHM, Plesk, and Virtualmin, and I also handle email server setup and email marketing environments. I provide complete server deployment along with SSL installation (free or paid), including HTTPS configuration and final verification to ensure everything works smoothly. Please discuss your requirements so we can get started. Thank you

@gattes

Hi there, I have over 10 years work experience with Linux and Server Management as well as server hardening and proactive/reactive security. Ping me and I'll help you out. Cheers!

@mnomanrajput

As an IT industry veteran with over a decade of experience, I offer you unparalleled expertise in Linux server administration and security. My credentials include several Cisco certifications including the esteemed CCNP Security. That means you can count on my in-depth understanding of not just Linux but also network security as a whole. Throughout my career, I've implemented countless security solutions incorporating numerous firewalls like Palo Alto, Cisco ASA, Fortinet and more - ensuring the utmost security for any network I manage. My proficiency in tools like Fail2ban and SELinux seamlessly aligns with your project requirements. Moreover, I place great value on meticulous documentation to ensure clarity and transparency. You can trust that all changes made will be well-recorded, providing you with a comprehensive overview of everything done to harden your server. With my extensive experience, knowledge and dedication, I am confident that I am the ideal fit for your Linux server hardening and security project. So let's start securing your server today!

@OutsourceMan

⭐⭐⭐⭐⭐ Hello Valuable Client, I can deliver end-to-end Linux server hardening with a structured, security-first approach. With support from CnELIndia’s experienced infrastructure team and direct leadership from Raman Ladhani, your project will follow clear phases: initial security audit and vulnerability assessment; firewall design and implementation using UFW/iptables with strict policies; SSH hardening including key-based access, port controls, and intrusion limits; user access governance with least-privilege and sudo policies; patch and update automation for Ubuntu/CentOS; deployment of Fail2ban, SELinux tuning, and continuous log-based monitoring with alerting. Each step includes risk validation, rollback planning, and performance checks to ensure stability. You will receive complete documentation covering configurations, policies, and maintenance procedures, ensuring long-term security, transparency, and smooth operational handover.

@ankurms

With over 9 years of experience managing Linux servers, including hands-on work with Ubuntu and CentOS, I am confident in my ability to proficiently perform the tasks you require. I have comprehensive knowledge of server hardening techniques, which encompasses all areas mentioned in your project description: firewall configurations, SSH hardening, user access control, patch management, and security monitoring. In addition to my familiarity with popular tools like Fail2ban and SELinux, I have a background that’s relevant to other aspects of this job as well. I can provide skillful documentation of all my changes, ensuring transparency throughout the process. Plus, with my expertise in Docker container setups and experience with Git management platforms like GitHub, GitLab, and Bitbucket, I can contribute more value to your infrastructure by automating deployment processes. My focus has always been on building long-term relationships with clients by delivering cost-efficient and top-quality solutions. Given the sensitive nature of server security, it’s important to hire someone who nurtures a sense of accountability towards your system; rest assured that you will find more than just that in me. Let's ensure your server is well-secured under my watch!

@iglobalvn

Hi, I can handle a full Linux server hardening end-to-end with a security-first approach. I’ll perform an initial audit, lock down SSH (keys, ciphers, access rules), configure firewall rules (UFW/iptables or firewalld), enforce proper user/permission controls, apply patch management, and set up active monitoring with tools like Fail2ban, SELinux/AppArmor, and log auditing. I have hands-on experience securing Ubuntu and CentOS servers in production. You’ll receive clear documentation of every change made, plus recommendations for ongoing maintenance and monitoring.

@sedawy

Struggling with security vulnerabilities exposing your server to attacks? Left unresolved, this risks breaches, downtime, and data loss. Approach - Security audit to identify gaps in Ubuntu/CentOS setups - Firewall (ufw/iptables) and SSH hardening with key auth, Fail2ban - User access control, SELinux enforcement, patch management via Python scripts - DevOps monitoring (Prometheus), Cloud integration options, automated alerts - Full validation with scans and docs About Me 15+ years in DevOps, Cloud, Security. MBA. ⭐⭐⭐⭐⭐ track record. Expert in Linux hardening, Python automation for sysadmin tasks. Bonus 14 days post-setup support, monitoring baseline, SOP docs for ongoing Security. Guarantee & CTA Funds secure until 100% satisfied. I deliver or no pay. Server hardened and monitored? Message now. Available immediately. Fast response.

@ahmadpiran

***HUMAN PROPOSAL - NO BOT TEXT*** Hi there, I can harden your Linux servers immediately. I noticed you specifically mentioned SELinux—this is the mark of a serious security posture. Most administrators just disable it because they find it "too difficult" to manage, but I will actually write the custom policies required to keep it in "Enforcing" mode so your system is protected at the kernel level without breaking your applications. I will start by running a full security audit to identify current vulnerabilities. From there, I will lock down SSH (switching to key-based authentication and a non-standard port), configure the firewall to strictly allow only necessary traffic, and tune Fail2ban to aggressively ban IPs that show malicious behavior. I will also set up unattended-upgrades to ensure security patches are applied automatically in the future. I guarantee I will support you until the server is secure and all your services are running smoothly. Best, Ahmad

@Web1devloper

As a versatile and experienced Linux System Administrator with in-depth knowledge of Ubuntu and CentOS, I am confident that I'm the perfect fit for your server hardening project. Over the course of my 8+ years in the industry, I've successfully conducted numerous security audits and implemented robust protection measures that have kept servers secure against potential threats. Also, my familiarity with tools like Fail2Ban and SELinux will prove invaluable in securing your system. But my abilities go beyond just securing your system; I believe in long-term solutions. That's why with every task that I undertake, I provide detailed documentation of all changes made. This way, you'll not only enjoy an enhanced level of security but also be able to reference the modifications done in the future if needed. Finally, my broad skill-set extends to encompassing areas such as Firewalls, SSH Hardening, User Access Control, Patch Management, and Security Monitoring Setup which are obviously key facets of your project. So let's connect, and together we can fortify your Linux servers to ensure maximum protection for your valuable data and projects. Looking forward to being of service!

@techsty2014

Hello, I am well-equipped to enhance the security of your Linux server through comprehensive hardening. With extensive experience in Ubuntu and CentOS, I will conduct a thorough security audit, configure firewalls, harden SSH, and manage user access. I will also implement a robust patch management strategy and set up continuous security monitoring using tools like Fail2ban and SELinux. Documentation will be meticulously crafted for every change to ensure transparency and ease of future management. My approach ensures that your server is fortified against vulnerabilities while maintaining optimal performance. Questions: • Are there specific compliance standards you need to adhere to? • Do you have existing documentation or policies that I should align with? I'm eager to provide a secure and reliable environment that meets your needs. Let’s discuss how we can best achieve your security objectives. Thanks and best regards, Faizan

@toriquldev123

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam

@Manish502

Hello, I can help you harden your Linux server with a **security-first approach**. I have strong hands-on experience with **Ubuntu and CentOS**, performing full security audits and implementing best practices for production environments. I’ll handle **firewall configuration**, **SSH hardening**, **user and access control**, **patch and update management**, and set up **security monitoring** using tools like **Fail2ban and SELinux** (or AppArmor where appropriate). All changes will be applied carefully to avoid downtime and misconfigurations. You’ll receive **clear documentation** covering what was done, why it was done, and how to maintain the setup going forward. I’m reliable, detail-oriented, and ready to start immediately. Please message me to get started it.

@letscms

Hello Sir, I have read your requirements carefully and I am confident that I can manage Linux os securely like ( fail2ban, ufw/iptable, ssh & etc ). I am a server administrator + full stack developer with 12+ years of experience. I can handle entire process end to end securely. Regards & Thanks Jitendra Sharma

@souravsasmal14

Hi, I’m an experienced Linux system administrator and can handle full server hardening and security for your Ubuntu/CentOS environment. I’ve done security audits, firewall setup, SSH hardening, user access control, patch management, and monitoring using tools like Fail2ban and SELinux. I’ll review the current server state, lock down access, apply best-practice security configurations, and set up ongoing monitoring. All changes will be clearly documented so you have full visibility and future reference.

@dobrorodniy

Hello. I can help you with this project immediately. I will complete this task as quickly and qualitatively as possible. About me: My name is Oleksandr. I am a sysadmin with 20 years of experience. My core competencies are Linux and FreeBSD. I have experience in general system administration, mail servers, web security, VPN, VOIP, LAMP, Cloud services, virtualization. Thank you for your time and consideration.