Large corporate and ISP networks design, networks and websites security providing, server-side software development(ISP billing systems, webhosting software, CGI scripts etc), servers setup(web servers, routers etc), servers support and more.
I available via email\ICQ\SMS\Phone
If you need to ask me something - don't hesitate to do it. OS:
Linux(all kinds) Expert
*BSD
Good
Unix Average
Programming:
Perl
Expert
PHP Expert
C/C++ Patching
Shell
Good
HTML Average
Hardware:
Routers Cisco,
DrayTec, Lancom, D-Link, Planet
VoIP cards Sangoma, Digium,
Nortel
Protocols:
Physical layer Ethernet, ISDN,
T1/E1, WiFi
Low-level ARP, IP, TCP, UDP, ICMP
VPN/Tunneling
GRE, IP-IP, L2TP, PPTP, IPSec
Routing RIP, OSPF, EIGRP,
BGP
VoIP IAX, H323, SIP
Application level DHCP, DNS, FTP,
HTTP/HTTPS, IMAP, NTP, NFS, POP3, SMB, SMTP, SNMP, SSH, TELNET,
TFTP
Software:
DNS BIND, djbdns
FTP
ProFTPD, vsftpd, WU-FTPD
Mail Qmail, Exim,
Sendmail
Authentication Radius
WEB Apache, lighttpd,
thttpd
VoIP/