On each target system, set up the required terminals and
grant access to both terminal servers.
Procedure
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As user root, establish an SSH session with the target system.
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Change the kernel parameter line to include
hvc_iucv=2 and
hvc_iucv_allow=termsrv1,termsrv2 to obtain two HVC terminal devices and to allow
connections from TERMSRV1 and TERMSRV2.
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Reboot the target system.
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Log in to Linux™ as user root.
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Confirm that the HVC terminal devices are accessible through connections from TERMSRV1 and
TERMSRV2.
[root]# lsiucvallow
TERMSRV1
TERMSRV2
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Change the systemd, inittab or Upstart configuration to permit logins from both terminal
servers to the three terminal devices.