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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. Kundan S.

    Kundan S.

    System/Network Engineer

    Nepal - Last active: 10 days ago - Tests: 4 - Portfolio: 1

    I have been doing the system/network administration for last 6 years. My core area of work involves setup, maintain and troubleshoot system and network administration. I had successfully implemented and troubleshoot various system and network administration. My work platform includes (but not limited to ) Microsoft, Cisco, VMware, Citrix, Linux, IBM, SAN, Veritas etc. Below are the services which i have been providing to the organizations Microsoft platform : Active directory on w2k/w2k3/w2k8. IIS 6/7 web server/application server/file server/ smtp component for relaying. Certificate services as PKI in w2k/w2k3/s2k8. Visual SVN as subversioning and repository. Exchange 2003/2007/2010 and MDaemon for messaging solutions. WSUS, RDS, Terminal Services, Hyper-V DNS, DHCP, RRAS, Network Policy services. IPSec services PPTP and L2TP VPN Server. Kernel Debugging with Microsoft Debugger and kd tools SQL server 2008 Database administration. VBscripting for standalone and Active Directory environment. Linux services: LDAP with and without samba server. Qmail, postfix, Exim and sendmail as message transfer agent. Dovecot and courier as IMAP and POP3 server. smtp-auth, spamassasin, SPF with linux MTAs. Apache as webserver, apache and git as version control server . ssh server with and without password (with certificates and passphrase). VNC , screen as terminal services. oracle, mysql and postgresql on linux/unix. IPsec site to site and ssl vpn using freeswan, openswan and racoon. linux as firewall gateway using bash/perl gateway along with iptables, psad, and snort. bandwidth shaping policing services using htb and tcng. Voice server based on sip with h.323 support based on asterisk (trixbox, elastix, go-autodial ) with vicidial. quagga/zebra as advanced routing solutions. squid 2/3 cpanel/whm Amanda/zamanda/Bakula/rsync for backup services TCP Wrappers for hardening linux security. ext3/ext4/JFS on linux. puppet as configuration management. clonezilla. Debugging linux problems with signal trapping using bash scripts Networking : OSPF,EIGRP,RIP,BGP routing on cisco, juniper and open source in linux. Acess lists on cisco routers and security appliances (pix/asa). static and Dynamic NAT on cisco, juniper and open source linux/unix. L3 routing in cisco switches. SCCP/SIP in cisco CME, and call manager. INter vlan routing, site to site vpn, PPP/HDLC wan protocols, route summarization, equal/non equal cost load balancing. server virtualization on openvz, proxmox VE, KVM, XEN, citrix, vmware etc. desktop virtualization using citrix xendesktop and vmware view. App virtualization using citrix xenapp and vmware thinapp. user virtualization using citrix profile unity and appsense environment manager. ISCSI and Fiber channel based storage. IBM infosphere guardium for database security and data compliance CA identity minder and site minder. ...

    $11.11 /hr
    27 hours
    0.00
  2. 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
  3. Reneesh T R

    Reneesh T R

    I am a Linux System Admin. How can I help you?

    India - Last active: 8 days ago

    I have more than six years of experience as a Linux Sever Administrator and find below the areas that I have covered. * Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu), * Virtualization: (Vmware, Openvz, Virtuozzo, Xen, KVM, vserver), * Cloud hosting (Amazon EC2, AWS, S3), * Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), * Web servers (apache, nginx, lighttpd, tomcat), * Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), * Bulk marketing (Dkim, spf, high speed/inboxing, interspire), * Automation (puppet, perl/shell/awk scripting), * Monitoring (nagios, zabbix), * Hosting panels (Cpanel/WHM, Plesk, Directadmin).

    $6.00 /hr
    0 hours
    0.00
  4. Artem K.

    Artem K.

    SysAdmin

    Russia - Last active: 24 days ago - Tests: 1 - Portfolio: 1

    Linux administrator (gentoo, debian, archlinux, redhat and other). Windows administrator. Network administration. Mysql administration. web programming on parser (parser.ru). Support and administration of http servers, mail servers, firewall (iptables, shorewall), xen virtualization, VPN (openvpn, pptp, l2tp), routers. Linux kernel configuration. Linux sources compilation. Network hardware router configuration including firewalls (d-link, tp-link and other). Video streaming (web, surveillance).

    $10.00 /hr
    0 hours
    0.00
  5. Florent CARRE

    Florent CARRE

    Linux System Administrator & Developer

    France - Last active: 1 month ago

    Hi, I'm Florent a french system&network administrator and developper, I started to develop since I am 15 year old. I have competences on : - database management (mysql, postgresql, redis) - system and network administration (ipsec, openvpn, debian, centos, iptables, nftables) - virtualization (lxc, kvm, vmware esx/vsphere) - software development (C#, Python, Ruby) - web development (Html5, css3, javascript, jquery and nodejs) I am reactive, dynamic ,adaptable and rigorous I don't know what to say, i'm pretty bad on presentation.

    $25.00 /hr
    0 hours
    0.00
  6. Shamim Ahmed

    Shamim Ahmed

    System & Network Administrator

    Bangladesh - Last active: 08/26/2013 - Tests: 6 - Portfolio: 1

    Experienced in Linux maintenance/troubleshooting (RHEL, Centos, Debian, Ubuntu), Virtualization: (VMware, Xen, KVM), Cloud hosting (Amazon EC2, AWS, S3), Networking (DHCP,FTP:pureftpd, DNS:PowerDNS/bind/named, Proxy: Squid, VPN: openvpn/pptp,l2tp,IPSec,SSL Firewalls: iptables/ipfw,Shorewall, QoS, Proxies), Web servers (apache, nginx, lighttpd, tomcat), Mail servers (MS Exchange, Exim, Postfix, MDaemon, Anti-spam/ Antivirus: Clamav/Spamassassin/Amavis, Courier, Dovecot, Dkim, SPF), Automation (puppet, perl/shell/awk scripting), Monitoring (Cacti, MRTG, Munim, Nagios, Zabbix), Hosting Panels (Cpanel/WHM, Plesk, Directadmin). OS: Windows Server, MacOS, Linux, Mikrotik etc.

    $8.11 /hr
    0 hours
    0.00
  7. Wardha Anjum

    Wardha Anjum

    Senior Linux System Administrator

    Bangladesh - Last active: 1 month ago

    Hello. My name is Wardha Anjum. I am working as a Linux server administrator for last 2 years. I got certification on RHCSA (Redhat Certified System Administrator),RHCE (Redhat Certified Engineer), also CCNA Security. And also took training on CCNA, Redhat hardening. Listed below are my experience and skills: - OS: Windows Sever 2003, 2003 R2, 2008, 2008 R2, 2012; Windows XP, Vista, 7, 8; Red Hat Enterprise Linux 5,6,7; CentOS 5,6,7; - Server:LAMP, WAMP, DNS, Nagios,FTP, NFS, SAMBA, Mailservers( Postfix, Dovecot, Sendmail), Apache,SVN, Asterisk - Expert in server migration - Databases: MySQL,Micosoft SQL Server (MSSQL)

    $10.00 /hr
    0 hours
    0.00