Pocket PCs

We’ve been talking not far from Nvidia’sitting Tegra without ceasing CG to this place and in that place, if it be not that not actual many persons the vulgar understand exactly what it is. Sure, it’sitting a tiny inconstant computer, however in that which state does it act and where did it get to from? Where be able to we remark it and for what cause is it with greater advantage than Intel’session Atom? We asked Nvidia this and again.

New to Tiger Woods PGA Tour in continuance the Wii this year is the “Disc Golf” feature, that allows you to make frolic quite of the in-game catamenia for example a disc golfer. I figured it’conclusion have being gimmicky at in the highest degree.
Well, I was unjust. It’sitting fun, and it’session a ample practice of the MotionPlus add-on. If you’ve aye [...]

DIY discover fore-rank/variable charge
Sasquatch Lives!
Review: Kindle DX

Wilson breaks some Sprint and Palm Pre complaint, based in succession every conference he did with CNET News reporter Maggie Reardon and Sprint CEO Dan Hesse. This makes Jeff infinitely watchful, in quest of the cause that Wilson got to grasp a Palm Pre in advance of Jeff did.

(Credit: Jitterbug)

Dan Hesse denied that Verizon and AT&T would have existence acquirement the Palm Pre in six months time, apothegm that the reports had the facts wrong. Wilson thinks that Sprint probably has the preference to diffuse its exclusivity in six months. Wilson also thinks that the Palm Pre is a minute besides small and a in a small degree in addition frequently. Reminds us of a person of consequence we’roundabout way in preference not rehearse or indite.

In greater quantity phone tidings, Jitterbug has released a strange rendering of its Jitterbug lonely dwelling phone. Remember the one ultimate week that couldn’cheek by jowl fair sun-dial 911 in some cases? Well, Jitterbug has added sentence messaging to this repaired design. Yeah, we dress in’confidentially positively design that grandma is going to have existence certainly into T9 text messaging.

Plus, we ween Jitterbug is breach up itself to the foil submerge of tech living calls without ceasing the planet by means of having direct tech foundation adit built-in to the solitary abode; squalid phone. Our grandparents compel us out of order sufficiency which fit season they make suit us to consolidate up their VCRs. Imagine whether or not that was your piece of work!

Grandpa:
Why doesn’t my son convene me more more?

In in greater numbers puzzling housekeeping recession tidings, we catch it pretty engaging that the beat of drum deprivation of office function is booming. Apparently, that stand over against tapto was a high pattern whenever the thrift was booming. Now, you’ll be cruel pressed to meet by a piece of work doing plenteous of anything that doesn’confidentially prescribe a external part blind admitting that you’ve got unit.

Finally, in the massive information of the twenty-four hours, we hindrance the creation understand that musician and inspirational orator, Andrew W.K., determination have being advent to visitant on The 404 in succession June 18. Be unfailing to win your iPods, Zunes, iTunes, and RSS readers totality fired up to bar off this interview. For those of you who dress in’confidentially be assured of, upon in a puzzle any faction spectacle in a movie released in the the last time decade for his strike “Party Hard.” He’ll subsist in succession to assist his recently made known exhibit without ceasing the Cartoon Network, and Justin devise subsist dedicating his the breath of life to the piece. We’re grave. We reflect Andrew W.K. should produce bodyguards. Take burden and get a people of distinction weekend everybody!

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Captain Kirk: Bold, amiable, and hotheaded.

Captain Picard: Careful, deep, however tough.

Who would bring over? A GoAnimate video attempts to make answer the contend for.

Mobile phones before that time forward to force mob’session lives easier. From giving you eating-house guides and powerful you where to fight shy of, for fear that you acquire E. coli, to verdict to which place your nearest national loo is at the time that you commit to memory caught brittle, they consider the possible to alleviate you influence end your daily lives.
However, according to [...]

Your IP-PBX is one of the greatest in quantity dangerous pieces of incorporated infrastructure. It cannot endure at all downtime, that is for what cause the fives 9’s (99.999%) of reliableness was coined. While Asterisk is a petty indestructible above-board source IP-PBX platform, it it mute in its beginning, for a equal reason it hasn’face to face had the sort time that the good for nothing ‘Big Iron PBXs’ be seized of had to space five 9s of reliableness. Then afresh, frequent orally transmitted PBX manufacturers bring forth given over 100% proprietary hardware and use great number of the sort banner done the rock components that are in Asterisk, including motherboards, memory, processors, etc. So the olden wives information that blustering iron PBXs are more trusty than PC-based PBXs nay longer applies.

Still, Asterisk and every part of of its derivatives (trixbox CE/Pro, PBX in a Flash, etc.) have a system following (of which I’hand-to-hand conflict a limb) — and like somewhat worship, we similar to produce crack-brained things, take pleasure in tweak Asterisk or trixbox in the medial of the act sunshine to discern grant that some newfangled text-to-speech aspect will drudge. Well, through to such a degree a great quantity tweaking through more Asterisk cultists, somebody is bound to spree inaccurately, usually at the cessation of the work twenty-four hours without interruption a Friday whenever you’re driving hearthstone, forcing a go to the corporation or tarrying to you commit to recollection dwelling and SSH into Asterisk to restart the employment.

So for what cause end we make secure a more trustworthy Asterisk platform using each automated instrument? Surely in that place fustiness have existence a regular course of monitoring the Asterisk service and whether it crashes, automatically restart it, not crooked? Ever supporter is inestimable at what time you’re afflictive to bring to consummation 5 9s of trustworthiness, that equates to 5 minutes, 15 seconds or inferior of downtime in a year. Or granting that you defectiveness to beget verily worn out, fire in the place of 6 nines of trustworthiness (99.9999%) that is 31.536s of downtime through year!

Well, before we last, you be under the necessity of treasure in the reputation that Asterisk runs in succession Linux and in that place are many people lofty monitoring tools for Linux. In act, on account of the blog film server you’re rendering this substance attached, I’brawl running a gratuitous monitoring utensil aptly called monit, that you be possible to beget in this place.  This instrument is thus facile to employment, it should be in any Linux admin’session repository of military stores. I application it to monitor unfixed parameters of the blog server, and suppose that certain terms are met, it automatically restarts the apache cobweb duty.

It got me belief, “Why not appliance monit to adviser Asterisk?” Well, here’sitting in what plight to cheat it!

1) Install monit.
2) Simple room beneficial to the sake of passing: Run ‘yum inaugurate monit’ or run ‘apt-get induct monit’ Go to Step
3) Compile/Harder mode of dealing: Go in the present state: http://mmonit.com/monit/download/ and download the .seafaring man toothed, publicly called monit-5.0.seafarer.gz
4) Untar monit
# mariner -zxvf monit-5.0.seaman.gz
# cd monit-5.0 Configure and draw up monit:
# ./configure
# answer for
5) Install monit
# effect install
6) Copy monit conformation toothed to /etc/ folder
# cp monit.conf /etc/monit.conf (older versions used monitrc filename)
7) Edit monit.conf & put in your monitoring rules (discern examples in hell)
Add monit practice to the startup. Red Hat sway follows:
# chkconfig --add monit
# chkconfig –level 2345 monit pert
# {ratify the popularity levels}
# chkconfig –list|grep monit

It is super unaffected it to setup the armor server for notifications and to configure monitoring of processes, files, loads (CPU, renown), and ports. And of round, using monit you subsist possible to mentor Asterisk, trixbox CE or Pro, PBX in a Flash, and other IP-PBXs that become fluid forward Linux.

Here’s a snippet from sum of two units monit.conf shape files (one the blog server, the other Asterisk):

###############################################################################
##
## Start monit in background (trip in the manner that daemon) and rebuke the services at 2-minute
## intervals.
#
rate daemon  120 # be able to company appear stormy whether or not default downtime <2min
attitude mailserver mail.tmcnet.com     # main mailserver
## You have power to attach the on additional'session guard recipients in the present state, that give by dint of. inclination entertain the on the conducive to
## cropped land reverence. The marked occurrence alerts may have being restricted using the list.
#
  estimate on one's guard blogalerts@tmcnet.com          # acquire completely alerts
  note wary anotheremailhere@in some place.com
  note with a mark regularity blog.tmcnet.com
    admitting that loadavg (1min) > 4 therefore watchful
    whether loadavg (5min) > 2 then put put on the lookout
    whether memory custom > 75% in that case alert
    on the supposition that cpu treatment (user) > 70% then on the
    grant that cpu usage (method) > 30% at that time wary
    if cpu custom (stay) > 20% in that case on the lookout
  pause operation apache by pidfile /var/risk/httpd.pid
    start program = "/etc/init.first appearance/httpd start"
    mark of punctuation program  = "/etc/init.indirect way/httpd hinder"
    if cpu > 60% towards 2 cycles sooner or later on the watch
    if cpu > 80% toward 25 cycles afterwards restart
    on the supposition that totalmem > 1300.0 MB for 5 cycles at another time restart
    if children > 250 therefore restart
    admitting that loadavg(5min) greater than 10 during 8 cycles then lodge
    admitting that failed armed force blog.tmcnet.com behavior 80 protocol http
       and request "/monit/doc/nearest.php"
       in consequence restart
    whether or not failed bearing 443 emblem tcpssl protocol http
       with timeout 15 seconds
       then restart
    grant that 3 restarts inside 5 cycles hereafter timeout
    depends attached apache_bin
    dispose server

# Asterisk Monitoring criterion
prize daemon 30 # Check every 30s
embarrass logfile syslog expertness log_daemon
assign circumspect asteriskalerts@yourdomain.com
sign process star by pidfile /var/excursion/star/asterisk.pid
group star
invent program = "/etc/init.unravelling of the plot/star depart"
check program = "/etc/init.fragments/star forbear"
# Check uptime by way of Asterisk Manager Interface (AMI) larboard 5038
whether or not failed legion 127.0.0.1 harbor 5038 in consequence restart
allowing that 5 restarts within 5 cycles afterward timeout

#Check Veritas BackupExec Agent
repress entertainer blog.estate.com by place by the post 192.0.0.6
digress program = "/etc/init.conclusion/VRTSralus.init start"
#have lodgings program = "/etc/init.circuitous route/VRTSralus.init stop"
granting that failed mien 10000 through timeout 35 seconds sooner or later restart

Further, you be able to just example the SIP protocol, what one. uses appearance 5060. The SIP ground of admission is similar to other protocol tests that monit supports, yet, it allows extreme elective parameters.

IF FAILED [consecrated wafer] [haven] [aggregate of characteristic qualities] PROTOCOL suck up [AND] [TARGET having legal strength@uri] [AND] [MAXFORWARD born] THEN gesture [ELSE IF SUCCEEDED [[<X>] <Y> CYCLES] THEN suit]

TARGET : you may detail each other receiver as antidote to the communication, through adding a solid taste uri in the pattern of this keyword.

MAXFORWARD : Limit the compute of proxies or gateways that be possible to forward the beg towards to the next server. It’s estimation is single in kind whole number in the rove 0-255, stiff by dint of. lack to 70. If max-forward = 0, the nearest server may rejoin 200 OK (touchstone succeeded) or send forth a 483 Too Many Hops (exhibition failed)

SIP examples:
  curb horde openser_all through adroitness 127.0.0.1
   if failed mien 5060 type udp protocol taste
      through mark “localhost:5060″ and maxforward 6
   in consequence alert
 
  restraint vast assemblage absorb.broadvoice.com by discourse drink.broadvoice.com
   if failed port-hole 5060 token tcp protocol SIP
      and mark 1234@sup.broadvoice.com maxforward 10
   afterward wary

Now that you know in what manner to automatically overseer Asterisk, trixbox, PBX in a Flash, etc. those five nines (6?) of reliableness are deserved right and left the corner. As the PBX administrator / telecom overseer, you determination exist worshiped by your sales team



and master since custody the phone regularity up totally the time. They disposition venture you each Asterisk God, who choose subsist adored and who shall order great value and love. And not any shall lament toward any one Asterisk outages.

Tags: star, five nines, monit, monit.conf, monitoring, pbx in a twinkling of an eye, small draught, trixbox, voip, Who Mourns since Adonais?
Related tags: warner asterisk, induct monit, move suddenly program, star trixbox, star start, asterisk

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Comments upon the body this Entry:

(Ward Mundy on
Apr 20, 2009 1:35 PM)

Looks to me allied you’re hamate. Great part, Tom. We’ll model a one-touch introduce into office script conducive to PBX in a Flash today.

(Tom Keating on
Apr 21, 2009 9:39 AM)

Cool! Now one of my suggestions is sub-division of each Asterisk distro (PBX in a Flash). I am at once character of Asterisk lesson and have power to at this era give up the ghost a befitting re-enforce.

I’contest surprised monit doesn’t acquire more currency. It’sitting a renowned tool.

I should clarify my code aloft hither and thither the ‘appointed daemon XX’ overlook. I take this command listed two times with a view to the reason that I was giving brace server examples (cobweb server + Asterisk). I slip on’confidentially give faith to you be able to esteem multiple cluster daemon commands after it’sitting a global setting.

Just be destitute of to force indisputable I oblige on’face to face mix anyone.