Projects
What I do in my spare time.
Current projects
Past projects
What I do in my spare time.
Current projects
- OpenSolaris server
- AMD Phenom II X4 940, 8GB memory, 2 1TB hard drives
- ZFS mirror root pool
- Crossbow Network Virtualization (VLANs, virtualized interfaces)
- Sun xVM Hypervisor (Xen® dom0)
- CentOS 5.4 (PV)
- Fedora 11 (PV)
- Ubuntu 9.10 Server Edition (HVM & PV)
- FreeBSD 6.4 (HVM)
- Windows XP (HVM & PVIO)
- Sun Solaris 10 5/09 server
- AMD Opteron 1218, 4GB memory, 2 512GB hard drives
- ZFS mirror root pool
- Firewall with NAT and port forwarding (IP Filter), two uplinks
- DHCP server
- DNS authoritative and recursive server
- Web server - testing Apache and Sun Java System Web Server
- Proxy server - testing squid and Sun Java System Web Proxy Server
- Running Windows XP, CentOS, OpenSolaris and IBM OS/2 Warp virtualized on VirtualBox
- Evaluating Zimbra Collaboration Suite 6.0 Open Source Edition
- IPv6 on FreeBSD, Linux, Solaris servers, routers and firewalls
Past projects
- Distributed asterisk 1.4 VoIP PBX with SIP clients and trunks, IAX trunks, shared dialplans, FXO and FXS lines, voicemail
- Google Apps for Your Domain testing
- Relocation to Doha, Qatar
- Dial-up solution for a hotel
- Linux (Fedora Core 5) on Fujitsu Siemens PRIMERGY BX620 S2 and BX630 blade servers
- Home: hardware RAID-1 (IT8212F, Western Digital hard drives) under linux (dmesg)
- Instant Messaging solution for company's employees, using jabberd 2
-
Communication solution:
- Mail server, anti-virus
- Dual-homed router
- L2 (MAC) LAN filtering
- IP bound to Ethernet address
- L2 (bridged) VPNs to remote offices, road warriors
- Outbound Internet path based on LAN private IP address
- WAN failover/backup policy
- Traffic prioritization based on IP address and protocols (VoIP phones, high, medium and low priority)
- IP accounting
- LAN network access and priority derived from facility access/security devices
- Low-delay, high bandwidth IP VPNs between company's HQ and remote offices, suitable for real-time video monitoring
- Custom firmware based on OpenWrt White Russisan RC5 (openvpn, QoS)
-
(Wireless) ISP bandwidth management system
- HTB for guaranteed/maximum bandwidth
- Web-based customer and IP addresses management (PHP/MySQL)
- Switched from TCNG to "manual" tc rules generation from database
- Matching rules include IP TOS Precedence
- IMQ
- Per customer and per IP address accounting
- Learned a lot about HTB, especially r2q parameter :-)
- Auto-generated graphs from classes and qdiscs
- OpenSource e-mail server presentation at OpenSource Convention held in Timisoara on 30 Nov 2005. Conference program. My event page.
- Auto-install Mandrake 10.1 CD with custom setup and applications
- Authoritative and recursive DNS server with about 50 domains using PowerDNS and poweradmin
- Cross-compile Linux for Asus WL-500g. (notes)
-
Cross-compile Linux for Linksys WRT54G Wireless Broadband router (router, firewall, NAT, OpenVPN)
- Wireless AP and AP-client mode
- Stateful firewall (netfilter/iptables)
- DHCP server and client for both wired and wireless
- 5 Ethernet ports router (VLAN based)
- OpenVPN client and/or server for security
- QoS and bandwidth management
- web setup and service interface
- Possible: net-snmp server
- PPTP links for Wireless customers authentication and security
- Full-flavour dial-up management system
- Web-based customer management system
- Traffic and Time Accounting
- Statistics
- FreeRADIUS
- Home: switched from Edimax Broadband router BR-6104K to a FreeBSD 5.4 machine (dmesg)
- PPPoE
- Traffic graphs (can you see why the broadband router "choked" from time to time :-)
- cacti
- DDNS client :-)
- Home: switched from Planet WAP-1963A Access Point to US Robotics 5450 Access Point. Great speed improvement :-)
- NT4-compatible Primary Domain Controller (PDC) using samba 3 with openldap backend
- mail server
- qmail
- many domains (vpopmail)
- web administration (qmailadmin)
- anti-spam (rblsmtpd)
- anti-virus
- webmail
- IPSEC VPN using D-Link DI-804HV routers
- Auto-install (no user input) Mandrake 9 CD with custom setup and applications
- Bandwidth sharing CIR/MIR QoS using HTB with text interface for hundreds of broadband home-customers (non-prio) and companies (prio, SLA)
- Install & upgrade Kayako eSupport
- Automated backup solution for Linux and FreeBSD using rsync on vinum volumes
- Web server with apache, PHP, MySQL and ftp access for many domains
- Investigating some sshd brute-force attacks. Counter-measures.
- High-performance web server, thousand of simultaneous connections
- Social and technical (PHP, MySQL, Smarty) experiment: www.mumu.ro
- Plotting from AIX to a non-PS plotter from Catia
- Secure VPN using Teledat 820 routers
- V90/ISDN dial-up system using Cyclades NL4000 and FreeBSD router/firewall, RADIUS, web accouting/statistics
- GPRS via Bluetooth with HP compaq nc8000 laptop and Nokia 6310i mobile phone on FreeBSD 5.2.1
- Linux Magazine Romania article: Wildcard DNS, Verisign way?, No. 2, Oct 2003 (download)