All Services Programming & Development Linux/Unix System Administration $80/hr · Starting at $25 I have over 15 years of expertise in Linux and Unix server administration, installation, monitoring, security hardening, Open Source application customization, software development, and technical training. I have worked with some of the largest Fortune-500 firms over the years, but have also worked with many small and medium-sized businesses. I emphasize solutions rather than hype or any particular vendor; every client's circumstances are unique and I take pride in tailoring solutions for each. About $80/hr · Ongoing Download Resume I have over 15 years of expertise in Linux and Unix server administration, installation, monitoring, security hardening, Open Source application customization, software development, and technical training. I have worked with some of the largest Fortune-500 firms over the years, but have also worked with many small and medium-sized businesses. I emphasize solutions rather than hype or any particular vendor; every client's circumstances are unique and I take pride in tailoring solutions for each. Skills & Expertise AnsibleApacheBSDCentOSDebianDNSiptablesLdapLinuxmod_perlMySQLNfsNGINXOpen SourcePerlPHPPostgreSQLRhelRouters Firewalls & SecuritySecurityShell ScriptingSshSSLUbuntuVpn 2 Reviews Marty_Bladen says, Doug knows his stuff and was excellent to work with. The job was completed quickly and perfectly. I think I have found a repeat professional. for Sendmail to Postfix Config/Troubleshoot on Dec 07, 2007 Mark_Halloran1 says, Douglas is an expert in his field and provided a timely and comprehensive solution for us. Highly recommended Guru. for FTPS connection on Nov 06, 2007 Browse Similar Freelance Experts PostgreSQL DevelopersAnsible DevelopersSSL ServicesNGINX ServicesPerl DevelopersOpen Source DevelopersApache DevelopersMySQL DevelopersPHP DevelopersDNS Services