hmm guess i gonna stick some heat sink on top of my e398 haha...

In honest, LTE chip is a lot hotter than DC-HSPA+ chip.

But E398 implements a good heat dissipation solution.

You make the conclusion

i got the point...hehe..as it is a new model sure they have improved the heat dissipation..

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Added on December 24, 2012, 1:43 pmjust put table fan enough already

This post has been edited by greenlp_87: Dec 24 2012, 01:43 PM

I've posted this before but nobody seems to take note. The following scheduled task can allow OpenWRT for long run without someone manual reset it:
0 * * * * /bin/ping -c 10 58.71.132.10 || reboot

Basically what this command does is that every hour it will ping the IP address (Maxis DNS in this example) 10 times. If all timed out, it will reboot the router. I prefer this setup over pinging one IP address all the time.

10 respects for you

Anyway, what is the command to make the ping attempt shorter eg every 10 minutes.

Ya, my house is at the town area.

Don't need your bang your head, that should be the way everywhere on forum.

This post has been edited by fruitie: Dec 24 2012, 01:48 PM

whats the different and effect if pinging one IP address all the time & pinging the IP address 10 times?which one is prefer?

Sharing is caring!

You can try this:
*/10 * * * * /bin/ping -c 10 58.71.132.10 || reboot

Reference from:
http://www.cyberciti.biz/faq/crontab-every-10-min/

Another 10 respects

Soon will re setup my OpenWRT and do this

@Chuahcs79 Pin this @ MR3420 thread

Personally, I'd avoid pinging one IP address all the time especially to a popular server like Google's DNS. Most modern servers nowadays will start to block your packets to their server if they suspect it to be a DDOS attack of some sort. As long as you don't cross over their threshold limit, you'll be good. But not all servers have the same threshold, I'd prefer to avoid doing that completely.

Result of using pinging lowyat.net


Attached thumbnail(s)

Anyway to prevent DDOS attack on our system ( MR3420 stock or OpenWRT FW ) ?

On Public IP?

IINM, you can't DDOS someone with a Private IP NAT

so its preferable to set the router to ping on googles dns on different ip address...im using google dns btw so now i just need to edit the schedule task to ping on same dns server but not on every minutes rite?

abang tubi - both units of mine is ready to pos laju?

LYN using very simple time-based DDOS filter

IMO, the proper way to detect DDOS is analysing what type of packets are being sent periodically. You can't bring down a server if ping every 1 minute

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Added on December 24, 2012, 2:13 pmExcellent!

This post has been edited by ibnuasad: Dec 24 2012, 02:13 PM

All modern routers with firewall feature turned on usually already have a basic protection for DDOS attack. One example would be the SPI Firewall protection. See here for more information:
http://en.wikipedia.org/wiki/Stateful_firewall

so its ok to ping the same dns server on same ip address rite?

For me, I'd usually choose the DNS server of my provider as these can be considered as the closest hop before you go out to the internet. Most of us won't be using them to resolve our URLs as we either use OpenDNS or Google DNS or other paid/more reliable DNS servers. Any failure connection to this address will usually tells you that your connection is not working. Well, unless your ISP's DNS server is always down then you've to find another closest hop's IP address.

owh, i'm more prefer to use Google dns since some warez/website is block if using our local telco dns server..that's the reason for me to choose Google dns..so it will no problem rite?