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?
DELL PowerEdge R730 Server 2x E5-2697v4 2.3GHz =36 Cores 128GB H730 4xRJ45
$478.00
Dell R630 Server 2x E5-2620 V4 2.1GHz =16 Cores 128GB DDR4 1x 960GB 2x 1G 2x 10G
$345.00
Dell Poweredge R620 2x E5-2680 2.7ghz 16-Cores / 128gb / H710 / 2x Trays / 750w
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Dell PowerEdge R620 Dual Intel Xeon E5-2697 v2 @2.70GHz 128GB RAM No HDD S110
$144.50
Dell R730xd 26 Port SFF 2x E5-2697v4 36-Cores H730 128GB Server 2x SFP 10G ENT
$490.00
Dell PowerEdge R620 Server - 128GB RAM, 2x8c CPU, 120Gb SSD/3x900Gb SAS, Proxmox
$280.00
Dell PowerEdge R230 1U Server BOOTS Xeon E3-1270 v5 @ 3.60GHz 8GB RAM NO HDDS
$79.99
CTO Dell PowerEdge R630 Server, 2x Xeon E5-2620V4, 64GB- 512GB RAM, 480GB SSDs
$313.33
DELL PowerEdge R630 8SFF Server 2x E5-2699v3 2.3GHz =36 Cores 64GB H730 4xRJ45
$345.00
Dell PowerEdge R620 Server | 2x E5-2680 V2 2.8GHz | S110 | 128GB RAM | 4x trays
$249.99