Full Disk Backup over Netcat

full_disk_backup_over_netcat.md

Full Disk Backup over Netcat (Linux)

Purpose: Backup a full disk from server to client using dd and netcat.

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Server

sudo dd if=/dev/vda bs=64K conv=noerror,sync status=progress | nc -l -q1 -p9000

• -q1 → closes socket 1s after EOF

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Client

nc <server_ip> 9000 | dd of=backup.img bs=64K status=progress

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With Compression

Server:

sudo dd if=/dev/vda bs=64K conv=noerror,sync status=progress | gzip -1 | nc -l -q1 -p9000

Client:

nc <server_ip> 9000 | gunzip -c | dd of=backup.img bs=64K status=progress