Iptables Freelancers

Showing 88 freelancers

Iptables Freelancers

Showing 88 freelancers

  • Professional Server Help (Linux Administrator)

    Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients … more

    Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients and their team is always my priority. I have been working with all the major providers: Rackspace, Amazon, Softlayer, Godaddy, Hostgator, Bluehost, Linode, DreamHost, Mediatemple, Lunarpages. Expertise in Linux Administration is as follows (but not limted to) Server Distributions: RedHat, Centos, Fedora, Debian, Ubuntu, Gentoo, Suse, Mandriva, Opensuse, Knoppix, Slackware. Web servers: Apache, Lighttpd, Nginx, Tomcat File servers: Proftpd, Pureftpd, Vsftpd, Sftpd, TFTP, NFS, Samba DNS servers: Bind9, MyDNS, NSD Mail servers: Postfix(TLS,SASL), Exim, Sendmail, Qmail, Dovecot, Courier. Logging services: Syslog, Rsyslog, Syslog-ng Proxy servers: Squid(forward and reverse proxy), nginx, pound, lighttpd. Firewalls: Iptable scripts and Advance Policies Firewall with bruteforce detection. Firewall configuration: NAT, IP Masquerade Jabber servers: Openfire, Ejabberd, Djabberd Database servers: MySQL, Postgresql Backup: Bacula, bash scripts. VPN: PPTP Virtualisation: Openvz/Virtuozzo, Xen, Qemu, KVM, VMware Server, Parallels Workstation, Virtualbox headless, HyperVM. Monitoring: Nagios, munin, zabbix, zenoss Automation: Puppet(fan), custom bash scripts. Revision control: Git(fan), Subversion Package management: yum, rpm, dpkg, aptitude, apt-get, emerge Security: Nessus, John The Ripper, Tiger, PGP, GPG, nmap, Openvas, Snort, Ettercap, arpwatch, SSH, SSL, TLS, TCP Wrappers, Ethereal, dsniff, tcpdump, portsentry, rkhunter, chkrootkit, clamav, SPF, Spamassassin, domain keys. Cloud computing: Amazon (EC2, EBS, S3, CloudWatch), Rackspace services. Assessment tools: sar, vmstat, iostat, mpstat, netstat, iptraf, iftop, lsof, ntop, serverstats Misc services: NTP, Cups, DHCP, Dnsmasq  less

    lamp-administration apache-administration linux-system-administration postfix whm iis unix-shell mysql vpn nagios munin ftp cpanel plesk nginx postgresql lighttpd subversion puppet-administration ssh iptables drupal wordpress domain-migration mail-server-implementation openvz virtualization redmine amazon-ec2 amazon-web-services amazon-s3 rackspace-cloudservers virtuoso bash exim firewalls ssl centos ubuntu security email-deliverability-consulting mailenable ffmpeg atlassian-jira python rhel 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 1005 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
  • Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    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 … more

    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  less

    plesk whm cpanel lamp-administration vicidial trixbox asterisk vpn security penetration-testing mail-server-implementation apache-administration mysql postfix openvpn linux-system-administration redmine firewalls exim spamassassin awk unix-shell dns ssh ssl ubuntu technical-support technical-writing technical-documentation virtualization vmware-administration bacula mediawiki network-security nagios unix-system-administration snmp operating-systems-development magento windows-administration squid haproxy dhcp moodle samba ldap clustering apache-tomcat amazon-ec2 amazon-web-services subversion iptables svn git redhat-administration bash-shell-scripting xen-hypervisor 00 more less
    • $16.67 HOURLY RATE
    • 4.8
    • 981 HOURS
    • INDIA
    • LAST ACTIVE
    • 14 PORTFOLIO ITEMS
    • 4 TESTS
  • Web/Mobile Software Engineer/Developer

    grow up into independent successful Web/Mobile Software Engineer/Developer > from hardware power supply up to public social clouds > imagine future trends looking right now around the roots > growing up and supporting internet web projects and 'ria' apps > providing integration … more

    grow up into independent successful Web/Mobile Software Engineer/Developer > from hardware power supply up to public social clouds > imagine future trends looking right now around the roots > growing up and supporting internet web projects and 'ria' apps > providing integration for different types of solutions > establishing links and designing overview Software: Programming and scripting languages: script - ECMAScript, VBScript, JavaScript, JS Frameworks (JQuery, KineticJS, libcanvas) server side - Java SE, PHP, python, sh/zsh/bash, awk/sed/perl Development and maintenance of web applications based on: WordPress, Joomla, Drupal, Symfony2 framework, Yii framework SQLite, MySQL, Memcache PHP, XML, XSLT, HTML, CSS/JavaScript Servers administration: AWS EC2 instances PBAS, HSPc, Virtuozzo, Plesk VMWare ESX/vSphere Apache, MS IIS, Tomcat Qmail, Sendmail, MS Exchange, MailEnable MS DNS, Bind MS Active Directory Nagios, Zabbix, Bacula Database administration: Oracle, Interbase, MSSQL, MySQL OS Administration: MS Windows (Desktop&Server versions) Linux (RedHat & Debian based distros) HP-UX, Solaris Hardware: Designing and developing IT infrastructures: Public Telephone Networks, VoIP complexes local and distributed networks various connection channels (LAN, ISDN, xDSL, WiFi, broadband) Buildling, configuring, installing, maintaining servers (HP, Sun, Intel, Dell, IBM), network equipment (D-Link, Cisco), workstations Diagnostics and removal of hardware problems Workflow: Gathering, analyzing and documenting tech requirements, development tasks, product description; software re-engineering Participation in official public correspondence and other communications Planning and estimating  less

    security linux-system-administration ubuntu centos bash unix-system-administration hp-ux solaris-administration unix-shell windows-administration iis virtualization openvz vmware-administration vmware-esx lamp-administration ssh apache-administration nginx plesk whm cpanel dns ftp smtp database-administration sql mysql oracle-database mail-server-implementation sendmail qmail exim mailenable spamassassin amazon-web-services amazon-ec2 amazon-s3 technical-support helpdesk-support nagios zabbix website-development version-control git github oop html xhtml xml css php regular-expressions ajax javascript jquery drupal wordpress joomla network-planning network-administration tcp-ip firewalls iptables vpn openvpn project-management agile-software-development requirements-analysis asp.net-mvc google-analytics eclipse bacula software-testing software-qa-testing 00 more less
    • $12.99 HOURLY RATE
    • 5.0
    • 137 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux Admin / Networking / VoIP / Scripting / Web development

    Non-comprehensive list of GNU/Linux skills: - Debian-based distros - bash scripting - TCP/IP (networking) - netfilter/iptables (firewalling) - OpenVPN (virtual private networks) - OpenSSL (certificate management) - apache/nginx (web services) - cron (scheduling) - dovecot IMAP/POP3 and postfix SMTP (email) - asterisk PBX (voice over … more

    Non-comprehensive list of GNU/Linux skills: - Debian-based distros - bash scripting - TCP/IP (networking) - netfilter/iptables (firewalling) - OpenVPN (virtual private networks) - OpenSSL (certificate management) - apache/nginx (web services) - cron (scheduling) - dovecot IMAP/POP3 and postfix SMTP (email) - asterisk PBX (voice over IP) - git (revision control) - syslog (advanced logging) - nagios, icinga, munin, monit (monitoring) - backuppc (backup) Non-comprehensive list of network management skills: - solid understanding of TCP/IP & Ethernet - monitoring tools - VLAN management - manageable switches in general - IGMP & IGMP snooping - OSPF & BGP routing protocols - GePON OLT & ONU equipment About me: Solid understanding of communication and web technologies is my primary area of interest and expertise. Over the last 7 years I've been a tech support for an ISP, a systems & network administrator and a web developer. As a network administrator for 2 years, I discovered what it means to maintain a large-scale MAN (Metropolitan Area Network), including internet access, setting up and managing IPTV streaming through IGMP and IGMP snooping techniques. I've setup BGP so the provider can have a backup route for his services. I'm falimiar with the nature of the technical issues that can occur and the different ways of handling and preventing them. I'm experienced in ethernet & GePON networking equipment. I've managed network equipment from most major vendors, Cisco, HP, DLink, Dell and Fundry, just to name a few. I've been working with Debian GNU/Linux professionally for 2 years as a systems administrator for a Bulgarian tourist resort and 2 years maintenance the services infrastructure (web, mail, vpn, samba, domain management, monitoring, ticket resolution systems, asterisk voip). I worked at a web development company for a year, doing back-end web development with different and frameworks, such as django, rails, express.js, along with infrastructure administration tasks and support. Languages: html5, bash, python, ruby, javascript Databases: mysql, postgres, mongodb Hobbies & interessts: - x86 assembler - system security forensics - electronics  less

    linux-system-administration ubuntu bash asterisk iptables network-planning network-security network-administration html5 javascript ruby ruby-on-rails tcp-ip git github nagios devops munin redmine ssl vpn openvpn postfix mail-server-implementation openvz haproxy amazon-ec2 virtualization freepbx 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 59 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 8 TESTS
    ASSOCIATED WITH:
  • MQL4 Programmer, Webmaster, Server Administrator, Wordpress SEO

    MQL4 Programmer, developing Forex Metatrader indicators and EAs by client's specifications. Build custom personal or small business website for as much as 500$ for turnkey. Over 7+ years of experience in website design, SEO optimization and server administration. Have … more

    MQL4 Programmer, developing Forex Metatrader indicators and EAs by client's specifications. Build custom personal or small business website for as much as 500$ for turnkey. Over 7+ years of experience in website design, SEO optimization and server administration. Have developed corporate and personal websites for Semiconductor, 3D Analysis, Architecture and IT Services providers. Experienced in developing eCommerce websites. System administration experience include: Linux • Microsoft Windows Server • Microsoft Exchange • Group Policy & Procedures Development • Disaster Recovery Planning • BES - BIS • Network Security. InstallShield expert, software build engineer. Experienced translator for Hebrew & Russian languages.  less

    tfs windows-administration microsoft-exchange-server linux-system-administration ubuntu iptables postfix php ssl joomla dotnetnuke blackberry-app-development installshield mysql drupal apache-administration iis security helpdesk-support translation-hebrew-english translation-english-hebrew translation-russian-english translation-english-russian hebrew russian translation transcription database-management database-design mql4 forex-trading 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 435 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 8 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Server Admin

    During my working experience I have set up a number of different hardware and software units. Usually there are solutions based on Linux - first of all Debian and CentOS. Nowadays I can build your server for routing, VPN, corporate webhosting … more

    During my working experience I have set up a number of different hardware and software units. Usually there are solutions based on Linux - first of all Debian and CentOS. Nowadays I can build your server for routing, VPN, corporate webhosting; construct the wirewall rules and antivirus protection, implement your Linux servers or workstations in Active Directory infrastructure. I have good experience with DHCP, DNS, NAT, NetFlows, tc, LAMP. Also I am good at Windows XP/7 and Windows 2003/8 administration.  less

    linux-system-administration windows-administration dhcp firewalls vpn iptables tcp-ip lamp-administration mail-server-implementation technical-support 00 more less
    • $17.00 HOURLY RATE
    • 5.0
    • 60 HOURS
    • ISRAEL
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • System Administrator/Ruby programmer

    I am happy to offer you my best: accumulated for years knowledge and expertise. My core skills are: - UNIX administration ( especially Linux ) & UNIX-way in general ( utilizing existing tools delivering high reliability in a short time ) - open source solutions - network ( routing … more

    I am happy to offer you my best: accumulated for years knowledge and expertise. My core skills are: - UNIX administration ( especially Linux ) & UNIX-way in general ( utilizing existing tools delivering high reliability in a short time ) - open source solutions - network ( routing, IPsec, VPN, Firewall, balancing, kernel tuning ) - building comprehensive and robust infrastracture ( deployment, configuration management, version control, proactive monitoring, backups, failover solutions etc ) - automating tasks, via shell and Ruby I am also familiar with web development ( RubyOnRails, Jquery&ExtJS ). During my IT career i was involved in different IT projects & environments. I want to remind biggest and latest two of them: I have an experience of administrating worldwide Kaspersky Lab infrastructure. Nowadays i am administrating, russian mobile content provider network: high-loaded sms gateways and plenty of supporting services like databases, webservers, balancers etc  less

    ajax jquery javascript ruby ruby-on-rails unix-shell git iptables 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Linux Administrator

    4 years of various linux and windows administration experience such as: -Configuring failover soft-raid based network storage with incremental backup (mdadm+samba+ftp) -Local gateway with DNS server, transperent proxy, VPN server, mail and web-servers. Also traffic shaper and firewall … more

    4 years of various linux and windows administration experience such as: -Configuring failover soft-raid based network storage with incremental backup (mdadm+samba+ftp) -Local gateway with DNS server, transperent proxy, VPN server, mail and web-servers. Also traffic shaper and firewall rules. -WiFi-hotspots, isolated from main network. -Cups-based printing system. -Experience of maintaining windows 2003 domain network.  less

    linux-system-administration vpn raid-administration squid data-backup iptables mail-server-implementation samba ftp openwrt 00 more less
    • $5.56 HOURLY RATE
    • 5.0
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux Systems Engineer

    Linux (redhat/centos)/Windows (2k3/2k8) Server Configuration, Administration, Management, and troubleshooting Single & Multiple internal/intranet based LAMP Stack setups, configurations and administration LAMP Stack support - Single & Multiple setups Single LAMP Stack configuration with Linux(Centos/redhat), Apache, Mysql, and … more

    Linux (redhat/centos)/Windows (2k3/2k8) Server Configuration, Administration, Management, and troubleshooting Single & Multiple internal/intranet based LAMP Stack setups, configurations and administration LAMP Stack support - Single & Multiple setups Single LAMP Stack configuration with Linux(Centos/redhat), Apache, Mysql, and PHP Multi-Stack configurations of Linux(Centos/redhat), Apache, HA mysql setups and PHP Setup, troubleshooting, management of Citrix XenServer and VMware Servers. Install/Setup & Configuration Management & Troubleshooting Technical Support Handling Tickets tier 3 tickets & Phone support Backups and Providing Custom Backup Solutions Backups via Disk & Tape PowerAdmin/PowerDNS DNS Management Cisco ASA 55XX Adding/Removing ACLS Object Groups Project Management OpenNMS and SolarWinds Monitoring Services for WAN/LAN devices Implementation Test & Review Documentation & Support Service Control Review & Implementation Escalation Procedural summarization Writing and Reviewing Domain Security Control Sheets Policy Management and Overview Technical Writing Ticketing & Monitoring Policy Creation and Overview Acknowledgement Policies & Change Management Policies SLA Creation, Overview and Auditing Escalation Procedures Change-Management Documentation and Implementation Business Continuity Planning (BCP) & Disaster Recovery Planning (DRP) Documentation, training, and overview Executive Summary, Critical Process/Services Prioritization, Risk Mitigations & Cost Summarization Log Analysis Building new servers, configurations, setup, and installs: IIS 6 & IIS 7, Active Directory Apache SSL Cert Installs VERITAS Backups SQL 2k5/2k8 installation (Mirror Failover setup & support) Postfix SolarWinds & OpenNMS Monitoring Services Setup, troubleshooting, management of Citrix Applications and VMware Servers. Install & Configuration Management & Troubleshooting New server configurations, setup, and installs: IIS Apache Tomcat cPanel/WHM Plesk SSL Cert Installs Symantec Backup Exec 11d Backup Assist v.4 VERITAS Exchange 2k3/2k7 SQL 2k5/2k8 Bacula Qmail Postfix Vpopmail Spamassassin Simscan ClamAV Nagios  less

    centos virtualization vmware-administration iptables openvz apache-administration disaster-recovery data-backup policy-writing 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 5 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
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