Perl (Object Perl, CGI, parsers of XML/HTML (with or without special libs), complete web-sites and web engines, system programming in perl, IPC, i18n). FastCGI perl applications.
PHP 4/5
Shell scripts (bash, sh)
HTML, XHTML, XML
CSS1, CSS2 (clean css layouts technology)
QT Trolltech (GUI programming)
Cygwin (small experience in porting own Linux apps to win32 platform)
RegExp, PCRE
sed, awk, ed, gawk
E-commerce API (merchant and payment systems connection) – php, perl, c++
Databases and relational databases
MySQL
PostgreSQL
Oracle Database
Microsoft SQL Server
Berkeley DB
SQLite
LDAP
VOIP and multimedia services
H.323, ffmpeg (Linux), windows media 9 codecs (ASF) – own video/audio broadcasting software for internet and website usage (video conferencing, pay per view content delivery)
SIP and other VOIP protocols (also hardware VOIP routers, gateways)
Develop of interaction application to work with speech reco engine (logic) for VOIP system.
Asterisk-based telephony solutions (PBX)
Various speech codecs
Digium cards, FXO, FXS
ISDN
Corporative networks and security
Visa AIS PCI DSS compliance consulting
Cryptography, protection of the information and security protocols – IPSEC, VPN (mpd, pptp, openvpn), GPG/PGP, CryptoAPI. Creation of protected Internet servers, defense information systems (IDS, IPS) for information protection and organization of protected communication channels (networks, tunnels).
VISA standards, credit cards protocols
Network protocols – Netbios, IPX, TCP/IP (QoS, iproute2, zebra), and OSI levels.
WAN, DHCP, VPN, VOFR, IAX, DMZ, routers.
Traffic billing solutions
Corporative firewalls creation and integration – NAT, SNAT, DNAT (iptables, ipchains), ipfw, pf (The OpenBSD Packet Filter), port-forwarding and other.
Server kernel level defense and protection - SELinux, RSBAC, MAC (FreeBSD)
Freebsd, Linux kernels patching, web server patches and improvements
Corporative mail servers – qmail, postfix and exim based.
Proxy servers – squid, middleman, oops.
Web technologies, web-services and related
Web servers - Microsoft IIS, Apache (1.x, 2.x), Jakarta Tomcat, lighttpd, nginx, tux, Russian apache and some other web acceleration servers. Creation and integration of accelerated web servers, accelerated reverse-proxies. Building protected web server (secure) solutions for corporative sites.
Webmail – Horde IMP, Squirell, Open WebMail
Control panels - Plesk, Cpanel / WHM, H-SPHERE, Webmin, Virtualmin, Ensim, Cube panel and etc
Collaboration systems (installation, configuration and integration) – Kolab, GroupWare, OpenGroupWare, eGroupWare, Openxchange.
Creation and integration Open Source based solutions.
Other things and skills
Creation and integration Ruby On Rails based solutions.
phpMyAdmin, phpPgAdmin, phpLdapAdmin
Spamassasin, dspam, amavis
Dr.Web, ClamAV
Webalizer, Awstats
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