ssh - Dave's Blog

Retweet of eastwes

2015 Dec 8, 7:07

Forget the $2M, this is easily the most interesting part of the whole deal between Wu-Tang and Martin Shkreli. pic.twitter.com/5nSshXhjnJ

David_Risney: "With crypto in UK crosshairs, secret US report says it’s vital". I think the secret is out on crypto.

2015 Jan 15, 10:10

David Risney @David_Risney :
"With crypto in UK crosshairs, secret US report says it’s vital". I think the secret is out on crypto. http://arstechnica.com/security/2015/01/with-crypto-in-uk-crosshairs-secret-us-report-says-its-vital/ …

STRIP SEARCH SPOILERS FOLLOW! BEWARE! jspowerblogger: WARNING:...

2013 Jun 19, 2:50

STRIP SEARCH SPOILERS FOLLOW! BEWARE!

jspowerblogger:

WARNING: THIS POST CONTAINS RIDICULOUS STRIP SEARCH SPOILERS

So I lost. Wah, boohoo, etc etc. It doesn’t mean I’m going to give up. I love The Last Halloween. If you also loved The Last Halloween, don’t worry, it’s happening. But first I have to Kickstart it! The Kickstarter goes up within the next few days, and I hope you guys will fund it, if you’ll have me.

I’ll do a much larger post when the Kickstarter kickstarts so you’ll all know my feelings and how great everything is and how much you will be into backing it.

I’m one of these guys being sshhhhhsh’ed. Abby had the best comics on Strip Search and so for my continued entertainment I shall help kickstart!

Investigation of a Few Application Protocols (Updated)

2008 Oct 25, 6:51

Windows allows for application protocols in which, through the registry, you specify a URL scheme and a command line to have that URL passed to your application. Its an easy way to hook a webbrowser up to your application. Anyone can read the doc above and then walk through the registry and pick out the application protocols but just from that info you can't tell what the application expects these URLs to look like. I did a bit of research on some of the application protocols I've seen which is listed below. Good places to look for information on URI schemes: Wikipedia URI scheme, and ESW Wiki UriSchemes.

Some Application Protocols and associated documentation.
Scheme	Name	Notes
search-ms	Windows Search Protocol	The search-ms application protocol is a convention for querying the Windows Search index. The protocol enables applications, like Microsoft Windows Explorer, to query the index with parameter-value arguments, including property arguments, previously saved searches, Advanced Query Syntax, Natural Query Syntax, and language code identifiers (LCIDs) for both the Indexer and the query itself. See the MSDN docs for search-ms for more info. Example: search-ms:query=food
Explorer.AssocProtocol.search-ms	Windows Search Protocol
OneNote	OneNote Protocol	From the OneNote help: `/hyperlink "pagetarget"` - Starts OneNote and opens the page specified by the pagetarget parameter. To obtain the hyperlink for any page in a OneNote notebook, right-click its page tab and then click Copy Hyperlink to this Page. Example: onenote:///\\GUMMO\Users\davris\Documents\OneNote%20Notebooks\OneNote%202007%20Guide\Getting%20Started%20with%20OneNote.one#section-id={692F45F5-A42A-415B-8C0D-39A10E88A30F}&end
callto	Callto Protocol	ESW Wiki Info on callto Skype callto info NetMeeting callto info Example: callto://+12125551234
itpc	iTunes Podcast	Tells iTunes to subscribe to an indicated podcast. iTunes documentation. C:\Program Files\iTunes\iTunes.exe /url "%1" Example: itpc:http://www.npr.org/rss/podcast.php?id=35
iTunes.AssocProtocol.itpc
pcast
iTunes.AssocProtocol.pcast
Magnet	Magnet URI	Magnet URL scheme described by Wikipedia. Magnet URLs identify a resource by a hash of that resource so that when used in P2P scenarios no central authority is necessary to create URIs for a resource.
mailto	Mail Protocol	RFC 2368 - Mailto URL Scheme. Mailto Syntax Opens mail programs with new message with some parameters filled in, such as the to, from, subject, and body. Example: mailto:?to=david.risney@gmail.com&subject=test&body=Test of mailto syntax
WindowsMail.Url.Mailto	Mail Protocol
MMS	mms Protocol	MSDN describes associated protocols. Wikipedia describes MMS. "C:\Program Files\Windows Media Player\wmplayer.exe" "%L" Also appears to be related to MMS cellphone messages: MMS IETF Draft.
WMP11.AssocProtocol.MMS	mms Protocol
secondlife	[SecondLife]	Opens SecondLife to the specified location, user, etc. SecondLife Wiki description of the URL scheme. "C:\Program Files\SecondLife\SecondLife.exe" -set SystemLanguage en-us -url "%1" Example: secondlife://ahern/128/128/128
skype	Skype Protocol	Open Skype to call a user or phone number. Skype's documentation Wikipedia summary of skype URL scheme "C:\Program Files\Skype\Phone\Skype.exe" "/uri:%l" Example: skype:+14035551111?call
skype-plugin	Skype Plugin Protocol Handler	Something to do with adding plugins to skype? Maybe. "C:\Program Files\Skype\Plugin Manager\skypePM.exe" "/uri:%1"
svn	SVN Protocol	Opens TortoiseSVN to browse the repository URL specified in the URL. C:\Program Files\TortoiseSVN\bin\TortoiseProc.exe /command:repobrowser /path:"%1"
svn+ssh
tsvn
webcal	Webcal Protocol	Wikipedia describes webcal URL scheme. Webcal URL scheme description. A URL that starts with webcal:// points to an Internet location that contains a calendar in iCalendar format. "C:\Program Files\Windows Calendar\wincal.exe" /webcal "%1" Example: webcal://www.lightstalkers.org/LS.ics
WindowsCalendar.UrlWebcal.1	Webcal Protocol
zune	Zune Protocol	Provides access to some Zune operations such as podcast subscription (via Zune Insider). "c:\Program Files\Zune\Zune.exe" -link:"%1" Example: zune://subscribe/?name=http://feeds.feedburner.com/wallstrip.
feed	Outlook Add RSS Feed	Identify a resource that is a feed such as Atom or RSS. Implemented by Outlook to add the indicated feed to Outlook. Feed URI scheme pre-draft document "C:\PROGRA~2\MICROS~1\Office12\OUTLOOK.EXE" /share "%1"
im	IM Protocol	RFC 3860 IM URI scheme description Like mailto but for instant messaging clients. Registered by Office Communicator but I was unable to get it to work as described in RFC 3860. "C:\Program Files (x86)\Microsoft Office Communicator\Communicator.exe" "%1"
tel	Tel Protocol	RFC 5341 - tel URI scheme IANA assignment RFC 3966 - tel URI scheme description Call phone numbers via the tel URI scheme. Implemented by Office Communicator. "C:\Program Files (x86)\Microsoft Office Communicator\Communicator.exe" "%1"

(Updated 2008-10-27: Added feed, im, and tel from Office Communicator)

technical application protocol shell url windows

Now using NearlyFreeSpeech.NET to host deletethis.net

2008 Mar 17, 1:25

I've switched from using my own home web server of which one of the harddrives died, to using NearlyFreeSpeech.NET, an actual real live web hosting service. So far I'm very happy with them and they give me almost exactly what I had on my own home server: ssh access, vim, php, java, etc. etc. The only notable things they don't do are (1) cron jobs which I use currently and (2) SSL which I don't use currently. I can replace my cron job usage and I suppose I'll have to reevaluate my web hosting if I ever need SSL. At the moment many of the server side things like Vizicious will be unavailable. I'll work on getting those working again at some point.

technical webhosting webserver server homepage

Chumby will be cool, despite its name

2008 Feb 19, 1:51

I signed up for the pre-release beta and purchased a Chumby last year. Chumby looks like a cousin to a GPS unit. Its similar in size with a touch screen, but has WiFi, accelerometers, and is pillow like on the sides that aren't a screen. In practice its like an Internet alarm clock that shows you photos and videos off the Web. Its hackable in that Chumby Industries tells you about the various ways to run your own stuff on the Chumby, modifying the boot sequence (it runs Linux), turning on sshd, etc, etc. The Chumby forum too has lots of info from folks who have found interesting hacks for the device.

When you turn on the Chumby it downloads and runs the latest version of the Chumby software which lets you set alarms, play music, and display Flash widgets. The Chumby website lets anyone upload their own Flash widgets to share with the community. I tried my hand at creating one using Adobe's free Flash creation SDK but I don't know Flash and didn't have the patience to learn.

Currently my Chumby is set to wake me up at 8am on weekdays with music from ShoutCast and then displays traffic and weather. At 10am everyday it switches to showing me a slide-show of LolCats. At 11pm it switches to night mode where it displays the time in dark grey text on a black background at a reduced light level so as not to disturb me while I sleep.

I like the Chumby but I have two complaints. The first is that it forces me to learn flash in order to create anything cool rather than having a built-in Web browser or depending on a more Web friendly technology. The second complaint is about its name. At first I thought the name was stupid in a kind of silly way, but now that I'm used to the name it sounds vaguely dirty.

chumby review flash linux

LibraryThing Developers are Responsive

2008 Jan 31, 10:47

I use my recently added books feed from LibraryThing, a site I've mentioned before where you track, review, recommend, and share your books, and I put the recently added books on my page. I thought it might be nice to include the book covers so I suggested adding book covers to RSS feeds in LibraryThings 'Recommend Site Improvements' group. The next day I had a response from the founder and lead developer Tim Spalding who had started implementing the feature. I noticed a few bugs, reported them on the same thread, and he fixed them soon after. Fantastic! It makes me want to upgrade to a paying account.

Incidentally, if you notice the Ghost in the Shell book appear multiple times in my RSS feed its due to the previously mentioned iterative bug fixes. The same item appeared multiple times slightly differently with each bug fix and your RSS aggregator may have picked them up as distinct items.

tim-spalding librarything rss homepage

Backup Notes

2007 Jul 13, 8:30I bought an external backup drive a few weekends ago. I've previously setup a Subversion repository so I decided to move everything into the repository and then back it up. So in went the contents of all of my %USERPROFILE% and ~ directories with a bit of sorting and pruning. Not too much though given its much easier to dump in everything and search for what I want then to take the time to examine and grade each file. What follows are the notes I took while setting this up. It takes me a bit of time to look up the help on each command so I figure I'll write it all down here for the benefit of myself and potentially others...

Setting Up the Backup Drive For Linux
I first changed the filesystem on the drive to ext3. I plugged it into my USB2.0 port and ran fdisk:

sudo fdisk /dev/sda

Useful commands I used to do this follow mostly in order:

m: help
p: print current partitions
d: delete current partition
n: create new partition (I used the defaults)
w: write changes and exit

Then I formatted for ext3.

sudo mkfs.ext3 /dev/sda1

I made it easy to mount:

sudo vim /etc/fstab # added line to end: /dev/sda1 /media/backup ext3 rw,user,noauto 0 0

I setup the directory structure on the disk

mount /media/backup sudo mkdir /media/backup/users sudo mkdir /media/backup/users/dave sudo chown dave:dave /media/backup/users/dave

After all that its easy to make a copy of the Subversion repository:

mount /media/backup cp -Rv /home/dave/svn /media/backup/users/dave/ umount /media/backup

Next on the agenda is to add a cron job to do this regularly.

Subversion Command Reference
On a machine that has local access to the Subversion repository you can check out a specific subdirectory as follows using the file scheme:

svn co file:///home/dave/svn/trunk/web/dave%40deletethis.net/public_html

Note also that although one of my directories is named 'dave@deletethis.net' Subversion requires the '@' to be percent-encoded.
Other useful subversion commands:

svn help: help
svn list file:///home/dave/svn/: list all files in root dir of svn depot
svn list -R file:///home/dave/svn/: list all files in svn depot
svn list -R file:///home/dave/svn/ | grep \/$: list all directories
svn status: List status of all files in the working copy directory as in - modified, not in repository, etc
svn update: Brings the working copy up to date wrt the repository
svn commit: Commit changes from the working copy to the repository
svn add / move / delete: Perform the specified action -- occurs immediately

Setting up Windows Client for Auto Auth into SVN
When using an SVN client on Windows via svn+ssh its useful to have the Windows automatically generate connections to the SVN server. I use putty on my Windows machines so I read the directions on using public keys with putty.

putty.exe dave@deletethis.net cd .ssh vim authorized_keys # leave the putty window open for now puttygen.exe Click the 'generate' button Move the mouse around until finished Copy text in 'Public key for pasting into OpenSSH authorized_keys file:' to putty window & save & close putty window Enter Key passphrase & Comment in puttygen Save the private key somewhere private pageant.exe 'Add Key' the private key just saved.

Checking out using Tortoise SVN
On one of my Windows machines I've already installed Tortoise SVN. Checking out from my SVN repository was really easy. I just right clicked in Explorer in a directory and selected "SVN Checkout...". Then in the following dialog I entered the svn URI:

svn+ssh://dave@deletethis.net/home/dave/svn/trunk/web/dave%40deletethis.net/public_html/

Note again that the '@' that is part of the directory name is percent-encoded as '%40' while the '@' in the userinfo is not.

Windows Command Line Check Out
On my media center I didn't want to install Tortoise SVN so rather I used the command line tool. I setup pageant like before the only difficulty was getting the SVN command line tool to use putty. With the default configuration you can use the SVN_SSH environment variable to point at a compliant SSH command line tool. The trick is that its interpreted as a backslash escaped string. So I set mine thusly:

set SVN_SSH=C:\\users\\dave\\bin\\putty\\plink.exe

The escaping solved the vague error I received about not being able to create the tunnel.

backup technical personal windows svn linux subversion

PuTTY: a free telnet/ssh client

2007 Apr 9, 5:15The SSH client I like to use.

client ssh tool tools free encryption privacy putty security sftp setupnewcomputer

Using public keys for SSH authentication

2007 Mar 19, 3:13Documentation on setting up SSH to use keys.

security ssh howto key publickey putty

Xming Notes

2007 Jan 11, 12:01Xmin lets you run your X Windows applications remotely via SSH on Windows. Useful with my new server. Awesome!

windows x11 xserver software linux x xwindows client free open-source opensource remote unix

(Bitvise) Remote Desktop and SSH Tunneling

2006 Jul 16, 8:33How to setup Remote Desktop over an SSH Tunnel

ssh remote windows tunneling security desktop howto internet secure tunnel mstsc microsoft

Uniform Resource Identifier (URI) Scheme for Secure File Transfer Protocol (SFTP) and Secure Shell (SSH)

2006 Apr 5, 10:42

ssh sftp uri rfc reference specification ietf internet security

SSH : Support : Downloads : SSH Secure Shell for Workstations

2005 Sep 15, 7:10

tools ssh client software

Plane Wackiness

2004 Apr 22, 6:44My interview was scheduled for Monday starting at 8am, so when I signed up for the trip and MS suggested a departure time of 4:30pm on Monday I thought that'd be good. Unfortunately the entire process ended at 4:15pm and it takes a little more than 15 minutes to get from Redmond to Seattle and then through the whole airport deal. So after the taxi ride to the airport and waiting in line for like 20 minutes its 5:30pm and I'm at the front of the line asking this woman for a new ticket.

Woman: *typing* Well I can get you to LA... Me: Yeah well that's the right state. Woman: *still typing* Oh... Hmm... Uhoh... *other non-words* Me: *waiting patiently* ... Woman: Are you ready to run? Here's your ticket. Gate C11.

I look at the ticket and the plane's boarding at, what do you know?, 5:30pm. So yeah I start running. I hit the security check point line and I know all about this. I take off my belt and shoes and empty my pockets into my backpack, my only luggage. I am Mr. Prepared, or maybe Prepared-ness is my middle name, whatever. I get through the line with no problem, put on my backpack and holding my shoes and belt in one hand I notice a big old clock just to my left. While I'm staring at it, it changes from 5:42 to 5:43. "Oh shit!" I think, so I start running again. I finally get to the appropriate gate and get on the plane all out of breath. I'm walking down the aisle with shoes and belt in hand, and I guess I look a bit out of sorts. I sit in my seat and I'm telling the guy next to me about my whole deal: "Ha. Yeah. I was late and with the running and the security checkpoint..." into incoherent mumbling and gesturing. So it turns out the pilot and copilot's incoming flight was way late and I ended up sitting in my seat for another 15 minutes before we could take off. All that wasted running. What a shame. Coming into LA we've been "landing" for like 20 minutes. We finally get on the ground and its 30 minutes passed the boarding time of my connecting flight. I start thinking about anyone I know who lives in LA. All the other passengers stand up and block the aisle. Then, an announcement "Will Daniel Riesney please come to the front of the plane." OK I can tell that's supposed to be my name, but how the hell am I supposed to get to the front of the plane? The people near me who have heard me talking to the guy next to me about this let me past easily enough. But now I have to explain this to each person out of ear shot to further my progress. "Hi. Excuse me. They called me to the front of the plane. Pardon me. Can I get by." And so on. Its getting more hostile the closer I get to first class. Up to this one guy. He's trying to talk on his cell phone but its not working because everybody is trying to talk on their cell phone now that we've landed. His phone connection has failed. I can't guess at what else has happened to him today but he's decided to make his Custerian last stand here between me and the rest of the plane.

Me: *continuing from previous passengers* Excuse me. Pardon me. Guy: *spinning around* WHAT!? Me: Can I please get by? Guy: What? Why? Were not going anywhere! This whole time I've been forcing my way past him. Guy: There OK your past me now! Your several feet ahead of me! Congratulations! Me: Dude, I'm sorry they called me to the front of the plane. Guy: I find that highly unlikely!

Whatever. I keep walking and like 7 people past the asshole I guess the flight attendants give up on me and start letting people off the plane. Now who feels like an asshole? Its me. I get off the plane and some airport guy has a new schedule for me. Oh good I'm thinking, I've got an hour until the next flight's boarding time at 10:30pm. So I get on a tram to travel to the other side of LAX. I wait for oncoming traffic to stop so I can climb up a stopped escalator (Incidentally right next to it is another escalator which has been closed off. Why would they do that? Escalators cannot break they just become stairs.) I get up there and wait in line for an extreeeeme amount of time and finally get up to claim my ticket. Its 10:20. I get my ticket and, yeah, the departure time is 10:30, the boarding time is 10:10. So I start running again. More security check fun. I finally find my boarding gate. I rush up...

Me: *breathing heavy* Here's my ticket Lady: Oh good your finally here. Just go right out that door, *points* down the stairs, *more pointing* and wait for the tram.

WHAT? Isn't there supposed to be a PLANE somewhere? This is what I'm thinking not what I'm saying. So I walk outside and down these steps. And I'm waiting. The lady from inside joins me.

*awkward silence* Lady: The bus should be here pretty soon. Me: So... I'm going to miss my plane huh? Lady: Oh no, see here? *points at my ticket* Your ticket is confirmed so they can't leave without you. Me: Oh good... I hope they didn't tell the other passengers that.

Lets see how many passengers I can piss off in one night. Eventually this bus shows up. I get in and the guy starts driving. "Do you know where I'm going?" I ask. "Yeah" the guy says. Great. Fine. Whatever. I don't care anymore. So we drive back around to the OTHER SIDE of the airport. You know, the side I started on. Yeah that side. So I get off the bus and walk into the small building set aside for smaller airlines. I see the frantic looking ladies manning another of these gates. They see me, check my ID and ticket, and one of them ushers me out the door next to the gate. Out the door and into a small gated area outside. So me and this new lady are just standing here. Even had I the energy to ask her what was going on its very loud what with all the planes. So we just stand here at this gate facing the planes for a while. I look at her trying to make eye contact and get some sort of acknowledgment that we are in fact waiting for SOMETHING. Eventually one of the day-glow guys appears from between some planes and saunters up. The lady hands him a paper and walks away. At the time I was kind of offended but looking back on it, maybe the lady was a deaf mute and I'm the one being insensitive. So now I follow this guy through a bunch of planes. I'm yelling "San Luis Obispo?" trying to be heard over all the ambient noise and this guy is somehow responding to me with an even tone no yelling required. I don't know how he did that. We finally get to the plane and its 10:40. So I delayed the flight ten minutes. I'm thinking its going to be really awkward when I sit down and we immediately leave. Its going to be suspicious even. But, not to worry, we wait while the flight attendant argues with the guy who brought me to the plane for another ten minutes about how many people are supposed to be on the plane. Whatever.