Have you tried security oriented distro Operator.iso by ussysadmin.org? It is based on knoppix and debian. Also it is one of the best network testing and pen testers tool?
Supermicro Server Tower Xeon BOOTS E5-2620 v4 2.10GHz 64GB RAM NO HDD NO OS
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HP PROLIANT MICROSERVER MICRO SERVER HSTNS-5151 T4 Used.
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HPE PROLIANT MICROSERVER GEN10 PLUS MICRO TOWER SERVER - USED
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HP ProLiant Xeon E3-1220L V2 16 GB RAM 2.30 GHz MicroServer Gen8 NO DRIVES
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HPE Proliant Microserver Gen10 X3421 Perf AMS, P03698-S01, 16GB Ram
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SuperMicro Server 505-2 Intel Atom 2.4GHz 8GB RAM SYS-5018A-FTN4 1U Rackmount
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HP ProLiant HSTNS-5151 Micro Server 8GB RAM No Drives/Key/Caddies *READ*
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HP/HPE ProLiant AMD Opteron X3216 APU 16 GB RAM MicroServer Gen 10 NO DRIVES
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1U Supermicro Server 10 Bay 2x Intel Xeon 3.3Ghz 8C 128GB RAM 480GB SSD 2x 10GBE
$297.00
2U 12 Bay SAS3 SuperMicro Server 6028U-TR4T+ W/ X10DRU-i+ Barebone 12 Caddy RAIL
$299.00