Diff for "CheatSheet/OpenWrt"

Differences between revisions 3 and 4

Contents

Start service on boot

OpenWrt does not have update-rc.d or chkconfig. To start a service called service-name on boot, run:

   1 /etc/init.d/service-name enable

Place into /etc/firewall.user:

   1 iptables --append input_wan --protocol tcp --dport 22 --jump ACCEPT

When SSH from WAN is enabled, it's probably a good idea to disable password logins via SSH (only public key authentication will be allowed):

   1 sed -i -e "s/'on'/'off'/"  /etc/config/dropbear

will set PasswordAuth option to "off", making /etc/config/dropbear look like:

config dropbear
        option PasswordAuth 'off'
        option Port         '22'

OpenWrt sometimes does not unlock the data partition. I've particularly noticed this on the WRT54GL and OpenWrt 10.03.

mtd unlock rootfs_data

Create /etc/resolv.local containing nameserver entries. Add resolv-file to dnsmasq.conf:

echo resolv-file=/etc/resolv.local >> /etc/dnsmasq.conf

and restart dnsmasq:

sudo /etc/init.d/dnsmasq restart

Package	Use
luci-app-ntpc	luci frontend for NTP. Will automatically pull in dependencies and start syncing device clock
miniupnpd luci-app-upnp	Enable UPnP so ports in firewall can automatically be opened

-  ⇤ ← Revision 3 as of 2010-07-19 23:46:44 → 
  Size: 1267
  Editor: SamatJain
  Comment:
+   ← Revision 4 as of 2011-12-24 05:02:28 → ⇥
  Size: 1529
  Editor: SamatJain
  Comment: Add custom DNS for dnsmasq
-Deletions are marked like this.
+Additions are marked like this.
 Line 41:
+== Use custom DNS server ==

Create /etc/resolv.local containing nameserver entries. Add resolv-file to dnsmasq.conf:

{{{
echo resolv-file=/etc/resolv.local >> /etc/dnsmasq.conf
}}}

and restart dnsmasq:

{{{
sudo /etc/init.d/dnsmasq restart
}}}