Faulbaer's Schlafmulde
1450 articles

hacking the apc ap9606 on a ap9212

in case you get your hands on a mostly working apc ap9212 unit with an ap9606 comunications module of which you don't know neither ip address nor username/password you may want to try hacking the device via telnet because connecting to the serial port requires a special apc cable _and_ the port needs to be working as well. by the way I'm assuming an ip address has been configured (steady green status led) which prevents the ap9606 to respond to ip addresses set in the arp table by "arp -s".

1. find out the mac address by either attaching the ap9606 to a managed switch and just read the mac address listed for the port or attach it to another computer directly and listen to tcpdump to collect addresses.

2. find the ip address by attaching the ap9606 to a computer and listening to tcpdump. compare the output to the mac address you collected earlier and gather the address that makes sense. in my case it was an arp request and the wanted address was the one following "tell".

3. configure an ethernet interface for the same subnet and connect to the ip address you just found via telnet.

4. now you can log in as any user with the factory password TENmanUFactOryPOWER and dump some valuable information from the specific addresses of the device's flash memory using code "13". for example in my case "1d0" dumped the user/password and a bunch of other junk. The username started with "0u" followed by the username i.e. "0uadmin" and the password followed after a gap of 6x "FF" also in clear text.

5. exit with ctrl+a and re-login using the user/password you just gathered.

for configuring the ap606 I personally prefer the web-gui not because it is good but because the cli is just horrible.

now that you know how to hack the device you will probably want to find a way to secure it against others. me, too.

Faulbaer (it's fun to snmp-control the ports on this old pdu - it works well!)

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[ 2014.12.16, 01:57 :: thema: /english/hacking :: link zum artikel :: 0 Comments ]

trusty old apple tv

just recently I converted my old first generation apple tv into a low energy always on server for monitoring, backups and such. backuppc aparently made it suffer too much but icinga on the other hand works quite well. I also tried ocs inventory and despite the need for mysql this is also running well. I added an apt-cacher daemon for good measure but the first run pushed the little little device over the edge resulting in an average load of 23+. it's behaving well for the moment, though. with backuppc migrated off the system to a tougher machine this little gem runs like a charm. let's hope it stays that way.

Faulbaer (yeah ... should be linking to stuff but you'll know how to google, right?)

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[ 2014.05.23, 19:53 :: thema: /english/hacking :: link zum artikel :: 0 Comments ]

update on the new mac mini

like I expected the mac mini is fast. took it about a month to be shipped - apparently due to a shortage in fusion drives reportedly put into iMacs on priority but since I set it up on my desk last Saturday it has been quick like Han Solo.

the only thing missing at the moment is Thunderbolt as I lost the port to my secondary display. any solution to use both, two displays as well as the Thunderbolt port, would be helpful.

the specs are pretty much bottom right - everything maxed out - I didn't even stop at apple care. this machine shall help me with my personal projects for the next two to three years. what amazes me most is how this tiny thing is running circles around its older brother, my Mac pro eight core 2.8 XEON system. about the same amount of ram, about the same processor but much newer and only four cores - a smaller graphics chip … still the machine is faster and feels much more responsive.

… and it is quiet.

Faulbaer (happy happy joy joy)

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[ 2013.01.23, 12:50 :: thema: /english/technology :: link zum artikel :: 0 Comments ]

synology accepted

went for the Synology disk station ds413j the other day. a little NAS now stuffed with four Western Digital Red drives. It didn't play well with my DLink green switch at first but since I replaced the switch it goes and goes and goes. it stores data as fast as I can shovel it from my drives.

I accept the Synology as apology for the shit Drobo I'm still suffering from. Since the Drobo has now become obsolete I used one of its less well known features and reduced its total capacity drive by drive - its now a three terabyte raid and I'm considering to use it as backup storage behind one of my time-capsules. don't know if that can work but will sure find out.

all that is part of the preparations for the maxed out Mac Mini I've been waiting for for the past two weeks now.

Faulbaer (life without a bulky mac pro - exciting!)

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[ 2012.12.19, 20:33 :: thema: /english/technology :: link zum artikel :: 0 Comments ]

considered an imac but went for the mini

my mac pro is getting old. the gforce graphics accelerator died and I had to go back to the ati radeon the machine had beem shipped with originally. even four gigs of ram decided to just disappear but maybe I can get them back - who knows. anyway - this machine has almost five years on its back and with its many fans and the eight xeon cores it consumes an unreasonable amount of energy compared to modern cpus. in short - a new computer had to be bought.

I waited for the new imac to come out before I finally came to my conclusion. I went for the mac mini. yes, the imac does have more horse-power and a much nicer display. but I already own trackpad and keyboard, plenty of storage, acessories, usb hubs, two 24" displays and whatnot … and the mac mini is much faster than my mac pro - plus it packs more ram. together with the fusion drive and probably a lacie raid it will be on the same level if not slightly above the mac pro and it will consume less power performing the same tasks faster.

what else is wrong about the imac? I'm still not comfortable with the idea of replacing the computer together with any of its failed components. I like the idea to keep things separate. what makes a macbook or an ipad strong just doesn't feel right with a desktop. I considered a powerful macbook as well but there is no real docking option for the macbook and I'm not comfortable running the notebook with the lid closed because of heat building up under the display.

it's going to be a mac mini - I already ordered it. didn't go for the server because there is no fusion drive for it and the drive option is a bit slow. with any luck it should arrive next week and if it's any good I'm gonna post about it here.

Faulbaer (if it's any bad I will post about it, too)

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[ 2012.12.05, 23:22 :: thema: /english/technology :: link zum artikel :: 0 Comments ]

three months and counting

it's funny really how everything turns out sometimes. a year ago I thought I had experienced a painful relationship of some sort and even felt like calling this love but now I have to find out that whatever that might have been it was nothing compared to real love.

it's not about the butterflies - not about being separated - not about the fun and not about the pain.

what it is about - to me at least - is how close I feel to her, the way I know I can trust her with all my heart. the way she never gets annoying or "to much" even after days spent in the same room. I don't think I'm explaining this well but the way it used to be before is ... well ... a lot different.

in the past I tended to become fed up with people, became bored and annoyed with people quite quickly. open end visits took as long as up to eight hours tops but then one of us had to leave. timed visits could go on for a bit longer if I could tell when those would end. I don't know if this is imaginable to you but this is still the case. people still get on my nerves after a relatively short amount of time ... everybody but my dear beloved wife that is. of her I cannot get enough.

time flies while we are together. I'm still waiting for this to end in a way because I cannot believe this is really happening. the way it looks like, though, I won't hold my breath. so far it doesn't feel as if this was going to end any time soon - let's hope for it!

due to a business meeting we are now separated for some days. that's ok as whenever I think of her besides the feeling of being a bit lonely there is this undefined warm fuzziness that makes me smile. the next thing then is to text or to write something or just to anticipate my return and then to hold her in my arms again and become whole.

I don't know why exactly I'm writing about this here in my tech-and-rant blog ... I reckon it's mostly just to let you know that I'm well - I mean REALLY WELL - although you haven't heard much from me in the recent past. that said I'm going to go back to blogging about tech stuff again for the future, will keep the blog techie and rantie from now on. ten more posts, maybe twenty and this will all be forgotten.

I'm not sure about this because it would break certain rules I defined for this blog when I started it years ago but I might actually remove some of the past posts of make them less easily accessible. but as I said this has to be decided another day.

now I'm getting tired.

Faulbaer (sweet dreams coming up)

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[ 2012.11.30, 00:26 :: thema: /english/love :: link zum artikel :: 0 Comments ]

philips hue: want!

about two months from now I'm going to buy the most expensive light bulbs I ever owned - except from projector bulbs and photography flashes maybe. it's overdue and I really do want philips hue!

Faulbaer (want want want want want …)

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[ 2012.11.09, 07:50 :: thema: /english/technology :: link zum artikel :: 0 Comments ]

data rescue saved the day

when I came back from london last month I noticed my mac behaving a little different from how I remembered it to. it wouldn't open disk images, it seemed to have stopped serving torrents although the internet connection was working and it wouldn't open files or applications. soon enough just about two hours later it just died on me. after a not so quick reboot I noticed the drobo wasn't coming up. I tried to check it with the disk utility but it wouldn't mount and the disk utility blabbered something about a directory being something with something blah foobar. I had been pondering to buy disk warrior on several occasions so I just went ahead and got me a copy. for $99 it turned out to be able to make the drobo accessible again but it wouldn't repair it because of some rather undefined problems that also made the scanning take ages - well today I think disk warrior is priced far to high for what it does.

next I had to buy some large usb-drives to recover as much data as I could. it took me over a week to suck all the data from the drobo and after some more crashes, reboots and several severe nightmares later my recovery work was done and I had all my encrypted sparsebundles back - just one wouldn't mount. the one that wouldn't mount had a virtual size of 4 tb and a real size of 550 gb and as it turned out it wouldn't mount because just about ten band-files worth 256 mb were missing from the band directory in the sparsebundle package.

this has happened before and would happen again - but not to me it hadn't.

after some googling around and reading this and that knowledge base discussion I was ready to give up. apples mount process just wouldn't accept a broken sparsebundle with missing band-files - it didn't matter if those were even used or necessary - it just wouldn't mount it - basta.

then I googled a little more, finding the article "repairing corrupt / damaged sparsebundle" pointing to this article "repair / rebuild damaged .sparsebundle" which finally gave me the solution: data rescue 2 which had been updated to version 3 by the time and which proved to be the helpful companion I needed to get my files back. it crashed, too but after just two more days it had recovered all the files I needed from the broken sparsebundle into a new one. the final clue suggested to mount the broken sparsebundle using the -shadow-option of the hdiutil. this then presented a readable and writable block-device for prosoft's data rescue (link removed on prosoft's request) to work with in expert mode.

although the 3d interface of the tool is a little childish and very much unnecessary the tool works great and is great value for the $99 I had to pay for it. it can't do wonders but for what it's worth it recovered all the data I needed and that's worth a lot to me.

a few final words about the sparsebundle file format: it sucks! apple should have the responsable team whipped until they get their heads out their asses and fix it.

- it's so fault intolerant it feels like it's from the eighties - all the journaling in the world can't help a sparsebundle if it's lacking band-files or if band-files and plist-file mismatch - dudes, get it fixed!

- there is no hashed directory-structure for the bands there are just millions of band-files sitting flat in the band directory waiting for accidents to happen

- there is virtually no usable documentation anywhere to be found on this sparsebundle packaging format - how open is that?

Faulbaer (and why does mac os x go insane beyond ten or more attached sparsebundles?)

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[ 2013.12.18, 00:45 :: thema: /english/technology :: link zum artikel :: 0 Comments ]
mario cart wii

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1450 articles