Hi @Ahmed Salah Mohamed Hussein
I know its late..but this could help some one else too..
U can go for the 'host key'》》 find 'RSA key' 》》 ckick 2048 bits》》 'generate new' 》》slect the folder where freeftp is installed》》click ok》》》thn 'test key'
Now u are good to go..
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