DD-WRT

Contents 1 Clear DNS Cache 2 Backup/Restore 2.1 Procedure 3 Restart httpd 4 References

Clear DNS Cache

Telnet/SSH in to the router and use this command:

killall -1 dnsmasq

source

Backup/Restore

It is not recommended to restore backups from different versions of the firmware.^[1] The suggested method is to backup individual settings from the NVRAM and restore them after the upgrade.

Procedure

Telnet or SSH in to the router and use these NVRAM commands:^[2]

• nvram show - show all NVRAM settings (there are a lot)
• nvram get <variable> - retrieve the value of a specific variable
• nvram set <variable>="<value>" - set the value of a variable (but does not commit it to memory)

  Note: do not use quotes around the value for non-string types, e.g., the forwardspec_entries value

• nvram commit - save changes to NVRAM

Useful variables:

• forward_spec - port forwarding settings
• forwardspec_entries - number of entries available in the port forwarding table (where you can add/remove rows)

  Note: there are some other forwarding options too, use nvram show | grep forward to see them

• static_leases - static DHCP leases
• static_leasenum - number of static DHCP leases available (where you can add/remove rows)

Restart httpd

Telnet/ssh in.

killall httpd
httpd

References