Digi IX20 User Manual page 662

Services
d. Click  again to list additional IP addresses or networks.
n To limit access to hosts connected through a specified interface on the IX20 device:
a. Click Interfaces.
b. For Add Interface, click .
c. For Interface, select the appropriate interface from the dropdown.
d. Click  again to allow access through additional interfaces.
n To limit access based on firewall zones:
a. Click Zones.
b. For Add Zone, click .
c. For Zone, select the appropriate firewall zone from the dropdown.
d. Click  again to allow access through additional firewall zones.
6. Multicast DNS (mDNS) is enabled by default. mDNS is a protocol that resolves host names in
small networks that do not have a DNS server. To disable mDNS, or enable it if it has been
disabled, click Enable mDNS.
7. For Private key, type the private key in PEM format. If Private key is blank, the device will use
an automatically-generated key.
8. To create custom SSH configuration settings:
a. Click to expand Custom configuration.
b. Click Enable.
c. For Override:
n
n
d. For Configuration file, type configuration settings in the form of an OpenSSH sshd_config
file.
For example, to enable the diffie-helman-group-sha-14 key exchange algorithm:
i. Click Enable to enable SSH custom configuration.
ii. Leave Override disabled.
iii. For Configuration file, type the following:
KexAlgorithms +diffie-hellman-group14-sha1
9. Click Apply to save the configuration and apply the change.

Command line
1. Select the device in Remote Manager and click Actions > Open Console, or log into the IX20
local command line as a user with full Admin access rights.
IX20 User Guide
A single IP address or host name.
l
A network designation in CIDRnotation, for example, 2001:db8::/48.
l
any: No limit to IPv6 addresses that can access the SSH service.
l
See Firewall configuration
If Override is enabled, entries in Configuration file will be used in place of the
standard SSH configuration.
If Override is not enabled, entries in Configuration file will be added to the
standard SSH configuration.
for information about firewall zones.
Configure SSH access
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