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Commands by mccalni from sorted by
Terminal - Commands by mccalni - 4 results
sudo update-alternatives --config java
2011-03-07 23:43:52
User: mccalni
Functions: sudo
Tags: java
1

You have openjdk and sun java installed. Many of your java plugins will not work properly. Something called IcedTea (the java web plugin) keeps crashing. Run this and select sun java to use sun java.

host {checkIp or hostname} [dns server]
2009-12-21 11:48:00
User: mccalni
Functions: host
Tags: IP reverse dns
3

I'm just a simple programmer. I find dig too verbose. host tells me alias(es) and IP address in a quick to grok format with nothing special to remember for input parameters.

With thanks to http://www.cyberciti.biz/faq/how-to-test-or-check-reverse-dns/

curl -fs brandx.jp.sme 2&>1 > /dev/null || echo brandx.jp.sme ping failed | mail -ne -s'Server unavailable' joker@jp.co.uk
2009-10-23 14:29:06
User: mccalni
Functions: echo mail ping
Tags: bash ping curl mail
2

Alternative to the ping check if your firewall blocks ping. Uses curl to get the landing page silently, or fail with an error code. You can probably do this with wget as well.

ping -q -c1 -w3 brandx.jp.sme 2&>1 /dev/null || echo brandx.jp.sme ping failed | mail -ne -s'Server unavailable' joker@jp.co.uk
2009-10-13 14:13:04
User: mccalni
Functions: echo mail ping
Tags: bash ping mail
7

Joker wants an email if the Brand X server is down. Set a cron job for every 5 mins with this line and he gets an email when/if a ping takes longer than 3 seconds.