Antix m14.
What version best for Dell Optiplex GX110? Intel PIII 600 MHz. 384 MB RAM. Something else than Knoppix?
Antix m14.
Your answer is 6 months too late.
Fortinet FortiGate-40C Network Security Firewall
$37.50
Cisco ASA5525-K9 ASA 5525-X Security/Firewall Appliance 1 Year Warranty
$138.00
NetFu Firewall 1U, Intel CPU, 8 x Gigabit, SFP, w/ pfSense, Others, NEW OPTIONS
$541.85
Fortinet Fortigate 100D Firewall Appliance With Accesories FG-100D
$42.00
Cisco Meraki MX68-HW Firewall Security Appliance MX68 Unclaimed No PSU
$99.98
SonicWall TZ300 Power Supply Wired Firewall Router Network Security Appliance
$14.50
Ubiquiti Networks USG Unifi Security Gateway Router/Firewall
$29.95
OPNsense six-port Gigabit router/firewall on Lanner FW-7535 hardware
$69.00
Sonicwall TZ350 Network Firewall w/ AC Adapter
$99.99
SonicWall TZ370 Network Security Appliance Firewall (02-SSC-2825)-Open Box
$604.99