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7

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Iptables Upwork freelancers typically receive a client rating of 4.88.

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Last updated: July 1, 2015

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  1. Hans W.

    Hans W.

    Senior System Engineer

    United States - Last active: 5 months ago - Tests: 2

    Accomplished System Administrator with 16 years of experience in research and instructional computing support. Comprehensive experience with Linux, Windows and Solaris. Specialties * Enterprise System Administration * Storage Management * Network Engineering * Datacenter Operations

    $44.44 /hr
    679 hours
    5.00
  2. Bhushan Kumar Sharma

    Bhushan Kumar Sharma

    Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    India - Last active: 17 hours ago - Tests: 4 - Portfolio: 14

    Since 2001, I have been dedicatedly working with Linux Operating Systems & Open Source. Services Provided ::- Deployment, Configuration, Security, Hardening, Monitoring, Performance Tuning, Troubleshooting of Linux Server Roles AWS – Amazon Web Services Migration of Servers Hosting Panels like WHM/CPanel, Plesk etc Asterisk Dialers, VOIP and Call Center Solutions Customization of Linux Kernel & Distro with Rebranding Faculty of Post-Graduate Degree in Computer Sciences. Firewalls & Gateways Linux HPC - High Preformance Clusters Remote Server Support & Troubleshooting L3/L4 Security Auditing of Servers & Websites Cloud & Virtualization Technical Writing VPN - Site-to-Site, Road-warrior Vulnerability Assessment & Penetration Testing Kayako

    $16.67 /hr
    3,592 hours
    4.85
  3. Alexandru V.

    Alexandru V.

    Senior Linux Administrator

    Romania - Last active: 15 days ago - Tests: 4 - Portfolio: 2

    * Fully manage the installation, configuration and troubleshooting of Linux servers * Install and configure Web Servers and MySQL * Install and configure customer scripts and programs * Monitor performance to identify and resolve issues using a suite of systems and tools. * Troubleshoot and resolve network, system, hardware and software problems. * Achieve quick fixes and / or long-term solutions as needed. * Maintain 100% customer satisfaction through all available means.

    $20.00 /hr
    122 hours
    4.99
  4. Imran A.

    Imran A.

    Mr. Expert

    Pakistan - Last active: 1 day ago - Tests: 5 - Portfolio: 2

    Contact me for help in OpenStack, CloudStack, Software Defined Networking, Perl, Apache, PHP, Bash, NAGIOS, SCO Unix, Linux , Solaris. Asterisk, Juniper , Cisco, Mikrotik OS , Firewalls, SQUID, Spamassassin, SEO and others

    $18.00 /hr
    96 hours
    5.00
  5. Francesco Ongaro

    Francesco Ongaro

    Senior Security researcher

    Italy - Last active: 4 months ago - Tests: 6 - Portfolio: 1

    Francesco Ongaro is an Italian security expert and Hacker, living in Verona (the city of Romeo and Giulietta), specialized in Network and Web Application Penetration Tests. He performed several hundred of technical activities over the years for many of the most important and exposed costumers in the private, public infrastructure, finance, banking, insurance and media fields. His research and advisories are published on USH (www.ush.it) and he founded an independent Tiger Team under the ISGroup (www.isgroup.it) umbrella. Senior Security Researcher at ISGroup (http://www.isgroup.it/), IT Security Outsourcing company. CEO at USH (http://www.ush.it/), IT Security research team. IT/ICT Security - Vulnerability Assessment (VA) - Network Penetration Testing (NPT) - Social engineering - Web Application Penetration Testing (WAPT) - Ethical Hacking - Security engineering - White box Architecture, Application, Database and Code Review - IT Security Standards and Best practices Audit - IT Security Policy and Documentation Audit - Reverse Engineering - ISO 20000 / PCI DSS / NIST / COBIT - Information Risk Management - Disaster Recovery (DRP/BCP) - IT Audit & Compliance Management - Secure development - Project management

    $55.56 /hr
    1 hours
    0.00
  6. Priyaranjan Sahu

    Priyaranjan Sahu

    Expert in Linux and Windows server administration.

    India - Last active: 2 months ago - Tests: 6 - Portfolio: 19

    --> DNS management (Registrar end and Hosting end), --> Mail Services (Postfix, Qmail, Exim, Mail enable, Exchange), --> FTP Services (Proftpd, PureFTP,VSFTP), --> Plesk Panel (Windows and Linux), --> Cpanel (Linux) and Enkompass (Windows), --> Virtuoozzo (VPS, Linux and Windows), --> Webmail (Roundcube, Horde, Squirrel, Atmail), --> Database (MySQL, MSSQL, Jet) --> Statistics analysers (Awstats, Webalizer and etc) --> SPAM checkers (Spamassasin, Boxtrapper) --> Network Administration (CCNA, Linux and Windows) --> Webservers (Apache, Nginx, IIS) --> CMS (Wordpress, Joomla, Magento, PHPFox, Wiki, Forums, Drupal) --> Technical SEO with speed optimisation from server end. --> Scripts installation (PHP, Perl, Shell) --> Server Hardening. --> Installation of Softwares on a server environment. --> Migration and setup of websites with minimum downtime. --> Technical article writing. --> Active Directory. --> Lync Server. ---> Parallels Operations Automation. --> Parallels Business Automation. I am glad to provide Technical help related with Servers both Linux and Windows as well as technical help related with wordpress, Joomla, Magento, Drupal and SEO optimizations. I have worked with Parallels Products like Virtuoozzo, Plesk and also worked with Cpanel from the past 3 years totally dedicated. I am an expert in Web-hosting industry. I am also an expert in Network administration. Please check my Blog for some solutions: http://linwintech.blogspot.com/

    $22.22 /hr
    21 hours
    4.84
  7. Nikitas Skemvris

    Nikitas Skemvris

    Systems Administrator and IT Engineer

    United Kingdom - Last active: 01/17/2014 - Tests: 6

    I am an experienced Systems Administrator, having worked for many years with a broad range of fairly complicated technologies, products and tasks. I like to understand how an implemented system works and dislike relying on trial-and-error or luck. I am eager to analyze the costs and benefits of alternative solutions, examine the requirements of each situation and make informed suggestions on how they could better be served. I draw real satisfaction from automating routine tasks that would otherwise require human labor. I prefer to work with Unix-like systems, but I have long experience in administering and supporting Windows Servers as well. Key Skills: • Hardware: Assembling computers, identifying and replacing faulty parts • Common Office software: Word/Excel/Access/Powerpoint • Systems Administration: GNU/Linux (Slackware, Gentoo, RedHat/CentOS, ArchLinux, Debian), FreeBSD and Windows Operating Systems • Designing and Implementing secure IP Networks based on Ethernet and WiFi • Installing and customizing numerous Network Service software, including: Postfix, Dovecot, Apache, Nginx, Varnish, MySQL, PostgreSQL, BIND, PowerDNS, NFS, Samba, OpenSSH, NTPd, Squid, Rsyslog • Relational Databases: SQL • Firewalls and Traffic Control: Iptables, Iproute2, PF • Virtualization: Vmware ESXI, Microsoft HyperV, Linux Vserver, OpenVZ, FreeBSD Jails • Languages: Python, Ruby, PHP, PERL and BASH (Note: I don't consider myself a Software Developer, but I am able to develop small applications that automate routine tasks or import/export/analyse/present data in helpful ways, following proper programming practices)

    $15.56 /hr
    0 hours
    5.00
  8. Sibin Kumar

    Sibin Kumar

    Linux Systems Engineer (cpanel expert)

    India - Last active: 12 days ago - Tests: 2

    Am working in web hosting field for past 3 years. I have worked with different web hosting companies (Pacific Host, D9hosting, akooka etc). I am comfortable with all kind of Linux servers (setup, hardening etc) . Currently working as a tier 3 technician in a leading web-hosting company located at U.K. Familiar with: Software: WordPress,Joomla,phpmotion,clipbucket,Softaculous,fantastico,idera(R1soft), SolusVM etc Server side: Red5,cPanel,FTP,Mysql-Tuning,Apache-Tuning,Squid,OpenVZ,Zen etc Managing 1000+ Linux based servers using configuration management tools (Puppet) Installation/Troubleshooting of client side application and database systems. Perform database administration functions on MySQL database management systems, including general maintenance backup & data restoring. Mysql disaster recovery. General maintenance backup, data restoring and replication. Kernel recompilation, Server hardening, VPS container creation and assigning parameters Installation: Linux,Apache,MySQL,PHP(LAMP) etc from source as well as using package managers/repositories such as RPM, yum etc Troubleshooting(Centos,OpenVZ,cPanel,DNS,Apache,ngnix,litespeed) Handling DNS and its troubleshooting. Firewalls: Iptables, CSF, LFD, ASL All type of account migrations (using FTP mirroring, rsync etc) Basic bash scripting knowledge. Source code compile. Cloud Computing & AWS(basic concepts) Mysql administration(including backup) My linkin URL : linkedin.com/pub/sibin-kumar/2b/38b/722/en Control Panel: cPanel

    $5.00 /hr
    0 hours
    0.00
  9. Jose Luis Ruiz

    Jose Luis Ruiz

    Support Engineer

    Spain - Last active: 12/11/2014 - Tests: 1

    Telecommute / Work remotely from both Torremolinos (Málaga), Spain and Toronto, Canada Linux Administration and Maintenance (Debian/Ubuntu and Red Hat Enterprise 5.2., 5.5.) Amazon Cloud and VMware ESX Administration and Maintenance (Instances, Elastic Compute Cloud EC2, volumes, AMIs, snapshots, security groups, etc.) Postgres and Mysql Administration and Maintenance Queries, processing and scripting access.
DNS Management. Records creation A, CNAME, TXT, SPF, MX, etc. of over 30 domains LDAP Administration: Primary and secondary nodes, users, groups, roles management Bash/Python/Perl script programming.
Systems Securitization (iptables, patching, nagios, nmap, etc.) Services deployment (Apache, Tomcat, Postgres, MySQL, Rhino, Mobicents, Dialogic Media Server, Radisys Media Server, etc.) Applications (JAR/WAR) deployment in production environments (Tomcat and Rhino) PBX administration, Asterisk (database accessing, rules, triggers, etc.)
CMS Deployment and Management (Joomla, Wordpress, Dotcms) Support procedures definition for clients and partners.
Architecture design for global clients (France, Italy, Austria, USA, South America)
 Incidents Lifecycle Management and Optimization Nagios and Cacti Monitoring (Installation and configuration)


    $25.00 /hr
    0 hours
    0.00
  10. Nizhi Saeba

    Nizhi Saeba

    Asterisk and Linux System Administrator

    Mexico - Last active: 6 days ago - Tests: 5 - Portfolio: 2

    I have 10 years working with Asterisk, Linux, Postfix, Apache (and others). Actually i'm studying a bachelor in computer science at UNAM (Mexico) with focus on Data minning, Big Data, and Data Science. In the past i worked at comunications enterprise who has a large amount of office over a lot of cities in Mexico and Central America (Panama, Honduras, Nicaragua, Costa Rica, Dominic Republic), they have now a single callcenter where all calls that inbound from all cities, drops into that callcenter via VoIP with SIP over Asterisk. On the other hand, we build a system for automatic outbound calls for agents to prospect sales. I was also in charge of deployment of servers, Asterisk, Apache/PHP/Django (for web administration and web access for call agents), IPTables (for security), Squid (a web cache proxy for content filtering), Postfix+Dovecot for email, and a large of etcetera, all over ubuntu server and debian linux servers. often i wrote about my work, discoveries, advances and achievements in my blog at http://nizhi.im

    $16.00 /hr
    15 hours
    5.00