Единственно что накопал в сети, разница в выгрузке put или profund,кажется правильно запомнил, так вот в первом случае не выгружается а во втором норм, зависит от клиента
Could not find /etc/loolwsd/proof_key No proof-key will be present in discovery. Generate an RSA key using this command line: ssh-keygen -t rsa -N "" -f "/etc/loolwsd/proof_key" wsd-00029-00029 2020-01-06 14:29:21.485599 [ loolwsd ] WRN Could not find /etc/loolwsd/proof_key No proof-key will be present in discovery. Generate an RSA key using this command line: ssh-keygen -t rsa -N "" -f "/etc/loolwsd/proof_key"| wsd/ProofKey.cpp:140
Could not find /etc/loolwsd/proof_key No proof-key will be present in discovery. Generate an RSA key using this command line: ssh-keygen -t rsa -N "" -f "/etc/loolwsd/proof_key" wsd-00029-00029 2020-01-06 14:29:21.485599 [ loolwsd ] WRN Could not find /etc/loolwsd/proof_key No proof-key will be present in discovery. Generate an RSA key using this command line: ssh-keygen -t rsa -N "" -f "/etc/loolwsd/proof_key"| wsd/ProofKey.cpp:140