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git-svn branching

- by slayerIQ

Hello, I am using git with an svn repository everything is going fine I did all my branching with git so I did not branch on svn but I branched with git and pushed those branches to a separate location. Then I commited changed from the branch when needed. But now I want to create some branches that actually exist on svn I tried: $ git svn branch someFeature -m "message" ,and I got this: $ git svn branch someFeature -m "message" Multiple branch paths defined for Subversion repository. You must specify where you want to create the branch with the --destination argument. How should I specify the destination I cant figure this out and the man page isn't that clear also.

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Authenticating a Server with Digital Signatures

- by TomS

I understand how Non-repudiation and Integrity are achieved with Digital Signatures, but it's the Authentication that I don't grasp yet. I'm developing a Client-Server application in C#, that should be capable of Authentication with Digital Certificates and Digital Signatures. I know how to check the validity and integrity of a Signature (with SignedCms.CheckSignature()), but how does this authenticates any of the parts involved? For example: The client asks the Server for a Digital Signature, The client receives the signature and validates it, If the validation succeeds, continue. The client could be a victim of a man-in-the middle attack and receive a valid signature in step 2. The validation would succeed, but the client wouldn't be talking to the right server. What am I missing?

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Converting a string to an integer (Android)

- by James Rattray

I'm not 100% on how to do this so i'm asking... May seem stupid but... How do I convert a string into an integer? Background info: I have a textbox I have the user enter a number into... it then: EditText et = (EditText) findViewById(R.id.entry1); String hello = et.getText().toString(); gets the string 'hello' Now I want to convert it to a integer so I can get the number they typed in -will be used later on in code... Is there a way to get the edittext to a integer? -That would skip the middle man... If not, string to integer will be just fine... Thanks alot, James

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WxPython Incompatible With Snow Leopard?

- by Alex

Hello all, Recently I upgraded to Snow Leopard, and now I can't run programs built with wxPython. The errors I get are (from Eclipse + PyDev): import wx File "/var/tmp/wxWidgets/wxWidgets-13~231/2.6/DSTROOT/System/Library/Frameworks /Python.framework/Versions/2.6/Extras/lib/ python/wx-2.8-mac-unicode/wx/__init__.py", line 45, in <module> File "/var/tmp/wxWidgets/wxWidgets-13~231/2.6/DSTROOT /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib /python/wx-2.8-mac-unicode/wx/_core.py", line 4, in <module> ImportError:/System/Library/Frameworks /Python.framework/Versions/2.6/Extras/lib/python /wx-2.8-mac-unicode/wx/_core_.so: no appropriate 64-bit architecture (see "man python" for running in 32-bit mode) I don't really understand them and would appreciate if you could help me to do so, also, if you do know what's going on, how can I go about fixing them? Maybe this has something to do with the fact that Snow Leopard is 64-bit? Thanks!!

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can I read exactly one UDP packet off a socket?

- by Brian Palmer

Using UNIX socket APIs on Linux, is there any way to guarantee that I read one UDP packet, and only one UDP packet? I'm currently reading packets off a non-blocking socket using recvmsg, with a buffer size a little larger than the MTU of our internal network. This should ensure that I can always receive the full UDP packet, but I'm not sure I can guarantee that I'll never receive more than one packet per recvmsg call, if the packets are small. The recvmsg man pages reference the MSG_WAITALL option, which attempts to wait until the buffer is filled. We're not using this, so does that imply that recvmsg will always return after one datagram is read? Is there any way to guarantee this? Ideally I'd like a cross-UNIX solution, but if that doesn't exist is there something Linux specific?

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How to apply Ubuntu patch for rpcbind?

- by Linda

I am currently running Ubuntu 12.04.1 Desktop and would like to apply this patch: https://launchpad.net/ubuntu/+source/rpcbind/0.2.0-7ubuntu1.2 My current rpcbind version is here: # aptitude show rpcbind Package: rpcbind State: installed Automatically installed: yes Version: 0.2.0-7ubuntu1.1 As you can see on the patch page, I'd like to patch to this version: Version: 0.2.0-7ubuntu1.2 However, based on the downloadable files on the patch page, I'm not sure where to start. (directory structure of the original rpcbind source) # find rpcbind-0.2.0 -type d rpcbind-0.2.0 rpcbind-0.2.0/src rpcbind-0.2.0/man (directory structure of the patch download) # find debian -type d debian debian/patches debian/source [EDIT] I've figured out how to apply the individual patches in the patches directory: # patch -p1 < ../debian/patches/01-usage-fix.patch patching file src/rpcbind.c (and so on for each patch file) ... but I'm not sure what do with the patch-related files in the root debian folder. Any help here? Thanks in advance, Linda

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PPTP ping client to client error

- by Linux Intel

I installed pptp server on a centos 6 64bit server PPTP Server ip : 55.66.77.10 PPTP Local ip : 10.0.0.1 Client1 IP : 10.0.0.60 centos 5 64bit Client2 IP : 10.0.0.61 centos5 64bit PPTP Server can ping Client1 And client 1 can ping PPTP Server PPTP Server can ping Client2 And client 2 can ping PPTP Server The problem is client 1 can not ping Client 2 route -n on PPTP Server Destination Gateway Genmask Flags Metric Ref Use Iface 10.0.0.60 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 10.0.0.61 0.0.0.0 255.255.255.255 UH 0 0 0 ppp1 55.66.77.10 0.0.0.0 255.255.255.248 U 0 0 0 eth0 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0 0.0.0.0 55.66.77.19 0.0.0.0 UG 0 0 0 eth0 route -n On Client 1 Destination Gateway Genmask Flags Metric Ref Use Iface 10.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 55.66.77.10 70.14.13.19 255.255.255.255 UGH 0 0 0 eth0 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth1 0.0.0.0 70.14.13.19 0.0.0.0 UG 0 0 0 eth0 route -n On Client 2 Destination Gateway Genmask Flags Metric Ref Use Iface 10.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 55.66.77.10 84.56.120.60 255.255.255.255 UGH 0 0 0 eth1 10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0 0.0.0.0 84.56.120.60 0.0.0.0 UG 0 0 0 eth1 cat /etc/ppp/options.pptpd on PPTP server ############################################################################### # $Id: options.pptpd,v 1.11 2005/12/29 01:21:09 quozl Exp $ # # Sample Poptop PPP options file /etc/ppp/options.pptpd # Options used by PPP when a connection arrives from a client. # This file is pointed to by /etc/pptpd.conf option keyword. # Changes are effective on the next connection. See "man pppd". # # You are expected to change this file to suit your system. As # packaged, it requires PPP 2.4.2 and the kernel MPPE module. ############################################################################### # Authentication # Name of the local system for authentication purposes # (must match the second field in /etc/ppp/chap-secrets entries) name pptpd # Strip the domain prefix from the username before authentication. # (applies if you use pppd with chapms-strip-domain patch) #chapms-strip-domain # Encryption # (There have been multiple versions of PPP with encryption support, # choose with of the following sections you will use.) # BSD licensed ppp-2.4.2 upstream with MPPE only, kernel module ppp_mppe.o # {{{ refuse-pap refuse-chap refuse-mschap # Require the peer to authenticate itself using MS-CHAPv2 [Microsoft # Challenge Handshake Authentication Protocol, Version 2] authentication. require-mschap-v2 # Require MPPE 128-bit encryption # (note that MPPE requires the use of MSCHAP-V2 during authentication) require-mppe-128 # }}} # OpenSSL licensed ppp-2.4.1 fork with MPPE only, kernel module mppe.o # {{{ #-chap #-chapms # Require the peer to authenticate itself using MS-CHAPv2 [Microsoft # Challenge Handshake Authentication Protocol, Version 2] authentication. #+chapms-v2 # Require MPPE encryption # (note that MPPE requires the use of MSCHAP-V2 during authentication) #mppe-40 # enable either 40-bit or 128-bit, not both #mppe-128 #mppe-stateless # }}} # Network and Routing # If pppd is acting as a server for Microsoft Windows clients, this # option allows pppd to supply one or two DNS (Domain Name Server) # addresses to the clients. The first instance of this option # specifies the primary DNS address; the second instance (if given) # specifies the secondary DNS address. #ms-dns 10.0.0.1 #ms-dns 10.0.0.2 # If pppd is acting as a server for Microsoft Windows or "Samba" # clients, this option allows pppd to supply one or two WINS (Windows # Internet Name Services) server addresses to the clients. The first # instance of this option specifies the primary WINS address; the # second instance (if given) specifies the secondary WINS address. #ms-wins 10.0.0.3 #ms-wins 10.0.0.4 # Add an entry to this system's ARP [Address Resolution Protocol] # table with the IP address of the peer and the Ethernet address of this # system. This will have the effect of making the peer appear to other # systems to be on the local ethernet. # (you do not need this if your PPTP server is responsible for routing # packets to the clients -- James Cameron) proxyarp # Normally pptpd passes the IP address to pppd, but if pptpd has been # given the delegate option in pptpd.conf or the --delegate command line # option, then pppd will use chap-secrets or radius to allocate the # client IP address. The default local IP address used at the server # end is often the same as the address of the server. To override this, # specify the local IP address here. # (you must not use this unless you have used the delegate option) #10.8.0.100 # Logging # Enable connection debugging facilities. # (see your syslog configuration for where pppd sends to) debug # Print out all the option values which have been set. # (often requested by mailing list to verify options) #dump # Miscellaneous # Create a UUCP-style lock file for the pseudo-tty to ensure exclusive # access. lock # Disable BSD-Compress compression nobsdcomp # Disable Van Jacobson compression # (needed on some networks with Windows 9x/ME/XP clients, see posting to # poptop-server on 14th April 2005 by Pawel Pokrywka and followups, # http://marc.theaimsgroup.com/?t=111343175400006&r=1&w=2 ) novj novjccomp # turn off logging to stderr, since this may be redirected to pptpd, # which may trigger a loopback nologfd # put plugins here # (putting them higher up may cause them to sent messages to the pty) cat /etc/ppp/options.pptp on Client1 and Client2 ############################################################################### # $Id: options.pptp,v 1.3 2006/03/26 23:11:05 quozl Exp $ # # Sample PPTP PPP options file /etc/ppp/options.pptp # Options used by PPP when a connection is made by a PPTP client. # This file can be referred to by an /etc/ppp/peers file for the tunnel. # Changes are effective on the next connection. See "man pppd". # # You are expected to change this file to suit your system. As # packaged, it requires PPP 2.4.2 or later from http://ppp.samba.org/ # and the kernel MPPE module available from the CVS repository also on # http://ppp.samba.org/, which is packaged for DKMS as kernel_ppp_mppe. ############################################################################### # Lock the port lock # Authentication # We don't need the tunnel server to authenticate itself noauth # We won't do PAP, EAP, CHAP, or MSCHAP, but we will accept MSCHAP-V2 # (you may need to remove these refusals if the server is not using MPPE) refuse-pap refuse-eap refuse-chap refuse-mschap # Compression # Turn off compression protocols we know won't be used nobsdcomp nodeflate # Encryption # (There have been multiple versions of PPP with encryption support, # choose which of the following sections you will use. Note that MPPE # requires the use of MSCHAP-V2 during authentication) # # Note that using PPTP with MPPE and MSCHAP-V2 should be considered # insecure: # http://marc.info/?l=pptpclient-devel&m=134372640219039&w=2 # https://github.com/moxie0/chapcrack/blob/master/README.md # http://technet.microsoft.com/en-us/security/advisory/2743314 # http://ppp.samba.org/ the PPP project version of PPP by Paul Mackarras # ppp-2.4.2 or later with MPPE only, kernel module ppp_mppe.o # If the kernel is booted in FIPS mode (fips=1), the ppp_mppe.ko module # is not allowed and PPTP-MPPE is not available. # {{{ # Require MPPE 128-bit encryption #require-mppe-128 # }}} # http://mppe-mppc.alphacron.de/ fork from PPP project by Jan Dubiec # ppp-2.4.2 or later with MPPE and MPPC, kernel module ppp_mppe_mppc.o # {{{ # Require MPPE 128-bit encryption #mppe required,stateless # }}} IPtables are stopped on clients and server, Also net.ipv4.ip_forward = 1 is enabled on PPTP Server. How can i solve this problem .?

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How do I generate different yyparse functions from lex/yacc for use in the same program?

- by th

Hi, I want to generate two separate parsing functions from lex/yacc. Normally yacc gives you a function yyparse() that you can call when you need to do some parsing, but I need to have several different yyparses each associated with different lexers and grammars. The man page seems to suggest the -p (prefix) flag, but this didn't work for me. I got errors from gcc that indicated that yylval was not properly being relabeled (i.e. it claims that several different tokens are not defined). Does anyone know the general rpocedure for generating these separate functions? thanks

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Untar, ungz, gz, tar - how do you remember all the useful options?

- by deadprogrammer

I am pretty sure I am not the only one with the following problem: every time I need to uncompress a file in *nix I can't remember all the switches, and end up googling it, which is surprizing considering how often I need to do this. Do you have a good compression cheat sheet? Or how about a mnemonic for all those nasty switches in tar? I am making this article a wiki so that we can create a nice cheat sheet here. Oh, and about man pages: is there's one thing they are not helpful for, it's for figuring out how to uncompress a file.

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Sending forgot password emails

- by GeoffreyF67

I am building a service that will have a 'forgot my password' feature. In addition to that, it will also email users when results are ready from my service. I would like to ensure delivery of my emails so I was looking around to find a service that would let me send emails. All that I've been able to find so far are services that require a user to opt-in to a list. In other words, I've been unable to find any that will let me send customized messages to individual users. I am currently using swiftmailer for php but would really like to find a service to do this...Anyone know of one? G-Man

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How to use Event notification in Solaris 10 when a directory change

- by user357594

I read the following page: Robert Benson's article on ECF developers.sun.com/solaris/articles/event_completion.html I also read the Solaris man pages but they are not very clear of how to use event notifications for directories. For example, If I add a new file into a directory, I would like to get some notification of that event. I found this link: blogs.sun.com/praks/entry/file_events_notification Which has what I need but it is for Solaris 11 ( which is not in the market yet). Based on the link below, I don't want to use poll because I want to get the performance advantage of events. blogs.sun.com/dap/entry/event_ports_and_performance Any suggestion is highly appreciated! -Armando.

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css, jquery issue

- by wadada

I was playing with Infogrid on my site. I added a header, a footer and added some text on the last block of iron man. As you can see the footer doesn't show up and the text of the last block is cut off. Now if you remove overflow:hidden; on the body, html the footer shows up but the text is still cut off. Any idea on how this the footer could show up without the scrollbar (so overflow:hidden; has to stay) and how to get the text of the last block to show up entirely? Thanks in advance and have fun :) wadada

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Git push origin master

- by user306472

I am new to git and recently set up a new account with github. I'm following a rails tutorial from Michael Hartl online ( http://www.railstutorial.org/book#fig:github_first_page ) and followed his instructions to set up my git which were also inline with the setup instructions at github. Anyways, the "Next Steps" section on github were: mkdir sample_app cd sample_app git init touch README git add README git commit -m 'first commit' git remote add origin [email protected]:rosdabos55/sample_app.git git push origin master I got all the way to the last instruction (git push origin master) without any problem. When I entered that last line into my terminal, however, I got this error message: "fatal: No path specified. See 'man git-pull' for valid url syntax." What might I be doing wrong?

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git hooks - regenerate a file and add it to each commit ?

- by egarcia

I'd like to automatically generate a file and add it to a commit if it has changed. Is it possible, if so, what hooks should I use? Context: I'm programming a CSS library. It has several CSS files, and at the end I want to produce a compacted and minimized version. Right now my workflow is: Modify the css files x.css and y.css git add x.css y.css Execute minimize.sh which parses all the css files on my lib, minimizes them and produces a min.css file git add min.css git commit -m 'modified x and y doing foo and bar' I would like to have steps 3 and 4 done automatically via a git hook. Is that possible? I've never used git hooks before. After reading the man page, I think I need to use the @pre-commit@ hook. But can I invoke git add min.css, or will I break the internet?

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How to compile a program which needs a newer version of glib

- by michael

Hi, I am trying to compile Webkit on Ubuntu 8.04. But when i run autogen.sh, I get the following error saying it needs a newer version of glib. So what is the safest way to install glib without screwing up the rest of my OS (since the rest needs 2.16 while webkit compile needs 2.21)? checking for GLIB... configure: error: Package requirements (glib-2.0 >= 2.21.3 gobject-2.0 >= 2.0 gthread-2.0 >= 2.0) were not met: Requested 'glib-2.0 >= 2.21.3' but version of GLib is 2.16.6 Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables GLIB_CFLAGS and GLIB_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details.

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Why is this not a bug in qmail?

- by jemfinch

I was reading DJB's "Some thoughts on security after ten years of Qmail 1.0" and he listed this function for moving a file descriptor: int fd_move(to,from) int to; int from; { if (to == from) return 0; if (fd_copy(to,from) == -1) return -1; close(from); return 0; } It occurred to me that this code does not check the return value of close, so I read the man page for close(2), and it seems it can fail with EINTR, in which case the appropriate behavior would seem to be to call close again with the same argument. Since this code was written by someone with far more experience than I in both C and UNIX, and additionally has stood unchanged in qmail for over a decade, I assume there must be some nuance that I'm missing that makes this code correct. Can anyone explain that nuance to me?

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How to limit the wordpress tagcloud by date?

- by Nordin

Hello, I've been searching for quite a while now to find a way to limit wordpress tags by date and order them by the amount of times they appeared in the selected timeframe. But I've been rather unsuccesful. What I'm trying to achieve is something like the trending topics on Twitter. But in this case, 'trending tags'. By default the wordpress tagcloud displays the most popular tags of all time. Which makes no sense in my case, since I want to track current trends. Ideally it would be something like: Most popular tags of today Obama (18 mentions) New York (15 mentions) Iron Man (11 mentions) Robin Hood (7 mentions) And then multiplied for 'most popular this week' and 'most popular this month'. Does anyone know of a way to achieve this?

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Changing <img src="XXX" />, js event when new image has finished loading?

- by carillonator

I have a photo gallery web page where a single <img src="XXX" /> element's src is changed (on a click) with javascript to show the next image—a poor man's ajax I guess. Works great on faster connections when the new image appears almost immediately. Even if it takes a few seconds to load, every browser I've tested it on keeps the old image in place until the new one is completely loaded. It's a little confusing waiting those few seconds on a slow connection, though, and I'm wondering if there's some javascript event that fires when the new image is done loading, allowing me to put a little working... animated gif or something up in the meantime. I know I could use AJAX for real (I'm using jQuery already), but this is such a nice and simple solution. Besides this lag, is there any other reason I should stay away from this approach to changing images? thanks.

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Conversion Fahrenheit to celsius programmatically

- by Doom

In my project, want to show the weather in fahrenheit first, then if the user wants clickes on conversion, needs to show the weather in celsius. My code is NSNumber *metric = [[NSUserDefaults standardUserDefaults] objectForKey:@"metric"]; NSLog(@"Metric is %@", metric); CGFloat aFloat = [speed floatValue]; CGFloat tFloat = [temperature floatValue]; CGFloat tempFloat = (tFloat-30)/2; NSNumber * p_Number = [NSNumber numberWithFloat:tempFloat]; //Convert mph to kmph if ([metric boolValue]) { [windValueLabel setText:[NSString stringWithFormat:@"%.2f kmph", aFloat * 1.6] ]; temperatureLabel.text = [NSString stringWithFormat:@"%@", p_Number]; } else{ [windValueLabel setText:[NSString stringWithFormat:@"%.2f mph", aFloat / 1.6]]; temperatureLabel.text = [NSString stringWithFormat:@"%@", temperature]; } When u start the app, its working and showing temperature in fahrenheit, but crashes at celsius man... is that the current conversion. help me out guys

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Is the JavaScript RegExp implicit method deprecated?

- by Eric

So everyone knows what I mean by "implicit methods"? They're like those default properties from the Windows COM days of yore, where you could type something like val = obj(arguments) and it would be interpreted as val = obj.defaultMethod(arguments) I just found out JavaScript has the same thing: the default method of a RegExp object appears to be 'exec', as in /(\w{4})/('yip jump man')[1] ==> jump This even works when the RegExp object is assigned to a variable, and even when it's created with the RegExp constructor, instead of /.../, which is good news to us fans of referential transparency. Where is this documented, and/or is it deprecated?

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Intercept windows open file

- by HyLian

Hello, I'm trying to make a small program that could intercept the open process of a file. The purpose is when an user double-click on a file in a given folder, windows would inform to the software, then it process that petition and return windows the data of the file. Maybe there would be another solution like monitoring Open messages and force Windows to wait while the program prepare the contents of the file. One application of this concept, could be to manage desencryption of a file in a transparent way to the user. In this context, the encrypted file would be on the disk and when the user open it ( with double-click on it or with some application such as notepad ), the background process would intercept that open event, desencrypt the file and give the contents of that file to the asking application. It's a little bit strange concept, it could be like "Man In The Middle" network concept, but with files instead of network packets. Thanks for reading.

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In a web app, is it wise to give log files ".txt" suffix?

- by Pekka

I am building a logging mechanism in a web application. Being a Windows man, I tend to give files with textual content the .txt ending. The suffix is automatically registered to be opened in a text editor in any Windows environment, and is just a nice convention. The app is going to be redistributed, and running mostly on Linux, though. The Linux convention for log files is .log. Is there any good reason on the Linux end, besides convention, why I should use .log? Any filters, real-life applications that could become relevant and that will work only with a .log suffix? Or can I merrily call it error_log.txt?

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A Simulator for a non-deterministic Push-Down Automaton

- by shake

Well, i need to make simulator for non-deterministic Push-Down Automaton. Everything is okey, i know i need to do recursion or something similar. But i do not know how to make that function which would simulate automaton. I got everything else under control, automaton generator, stack ... I am doing it in java, so this is maybe only issue that man can bump on, and i did it. So if anyone have done something similar, i could use advices. This is my current organisation of code: C lasses: class transit: list -contains non deterministic transitions state input sign stack sign class generator it generate automaton from file clas NPA public boolean start() - this function i am having trouble with Of course problem of separate stacks, and input for every branch. I tried to solve it with collection of objects NPA and try to start every object, but it doesn work :((..

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Network Security and Encryption explained in laymen terms

- by Ehrann Mehdan

Although I might pretend very well that I known a thing about networks or security and it might help me pass an interview, or fix a bug, I don't really feel I'm fooling anyone. I'm looking for a laymen terms explanation of nowadays network security concepts and solutions. The information is scattered around and I didn't find a resource for "dummies" like me (e.g experienced Java developers that can speak the jargon but have no real clue what it means) Topics I have a weak notion about and want to understand better as a Java developer PGP Public / Private keys RSA / DES SSL and 2 way SSL (keystore / trustore) Protecting against Man in the middle fraud Digital Signature and Certificates Is there a resource out there that really explains it in a way that doesn't require a Cisco certificate / Linux lingo / know what is subnet masking or other plumbing skills?

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Video with transparent background on page above image background.

- by fl00r

Hi! I want to embed some video into my HTML page. As background I want to use big picture. And above it I want to insert loop video with (i.e.) walking man. So, can I embed video (without flash and any player controls) in page? Can I decode video with transparent background? Is there any codecs which support transparent background (alpha-channel)? Now I see this solutions: Making flash (that I don't want to use) Create gif animation (and it will be big file size and quite bad quality)

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