Ubuntu
isc-dhcp package

/lib/systemd/system/isc-dhcp-server.service $INTERFACES variable

Bug #1774342 reported by JOSE CARLOS MARTIN IGLESIAS
6
This bug affects 1 person
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isc-dhcp (Ubuntu)
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Bionic
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Focal
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Groovy
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Hirsute
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Bug Description

package: isc-dhcp-server

/etc/default/isc-dhcp-server define the variables INTERFACESv4 and INTERFACESv6 for define listening network interface, but /lib/systemd/system/isc-dhcp-server.service and /lib/systemd/system/isc-dhcp-server6.service use the variable INTERFACES (exec dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf $CONFIG_FILE $INTERFACES'). This causes the service to listen on all interfaces.

The correct way would be for /lib/systemd/system/isc-dhcp-server.service:
......
 exec dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf $CONFIG_FILE $INTERFACESv4'
......

for /lib/systemd/system/isc-dhcp-server.service:
......
exec dhcpd -user dhcpd -group dhcpd -f -6 -pf /run/dhcp-server/dhcpd6.pid -cf $CONFIG_FILE $INTERFACESv6'
.........

Revision history for this message
JOSE CARLOS MARTIN IGLESIAS (jcmartini) wrote :

package isc-dhcp-server version 4.3.5-3ubuntu7

Utkarsh Gupta (utkarsh)
no longer affects: isc-dhcp (Ubuntu Groovy)
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