question about how to automaticlly batch modify switch password in freebsd 15.0 ?

fff2024g · 2025-12-26T12:30:41+0000

Dear all :
i have 20pcs switch . i can login it with password one by one ... now i want to modify 20pcs switch password in the same time . that is batch operation. . can you show me something. ?
i have read more books , don't find a good way..

i have tried to use ssh mulit-command to do that, but it 's not success. thanks.
sshpass -p "dddfffxxxed2" ssh -tt admin@192.168.0.2 << EOF
display ip interface brief
display ip routing-table
EOF
i think that script can't work for me . thanks.

do you know some automatic script and command to do that ? thanks.

Kai Burghardt · 2025-12-26T12:45:38+0000

fff2024g said:
[…] do you know some automatic script and command to do that ? […]

If the password can be changed with one common program e. g. passwd(1), then expect_passmass(1) ‑ssh of lang/expect. This requires and ensures one password shared among the machines for the given account(s). By today’s standards I get a bit queasy with reusing passwords, but you do you (I’m guilty as charged in that department, too).

sko · 2025-12-26T13:36:58+0000

at that scale you sholud *really* use some form of orchestration/configuration management tool like e.g. sysutils/ansible

question about how to automaticlly batch modify switch password in freebsd 15.0 ?

fff2024g

Kai Burghardt

sko