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  • understanding an API

    - by adusum
    I know that there are many API's like json,Facebook,twitter etc for developing related applications on iphone....but how to understand an API?This might be scilly question but I want to know how? what would you suggest for for a beginner?

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  • Formulate POST request in curl

    - by user1867256
    I'm using curl to send POST request to web service http ://localhost 2325//Service How can I desirialize body of the POST request into a variable which I could then access within my POST method ? Can someone give me an example? This is my method [WebInvoke(RequestFormat = WebMessageFormat.Json, UriTemplate = "/user", Method = "POST")] public void Create(User us) Class User contains user_id and user_name. Can anyone please help? All I need is an example how to formulate POST request in curl Thanks

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  • jQuery AJAX call working in IE but not FF?

    - by Uma Maheshwar
    $.ajax({ type: "GET", url: 'http://services.somewhere.com/MethodName', data: { 'param1':'something', 'param2': 'somethingElse' }, cache: false, dataType: 'jsonp', contentType: "application/json; charset=utf-8", success: function(view) { alert('success'); }, error: function(xhr, ajaxOptions, thrownError) { alert(xhr.status); alert(xhr.responseText); alert(xhr.statusText); } });

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  • Can I use Google Drive's editor interface embed in a website?

    - by Zamith
    I want to use google drive to store the files, but allow the users of my website to be able to edit them transparently, so that they don't have to go to google drive's website. Is this possible with the current API? Thus far I have only seen how to create an app for them to install in google drive, or doing something like DrEdit (https://developers.google.com/drive/examples/), which parses the files to JSON and uses the ACE editor, which is definitely not what I want.

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  • How does CouchDB handle UTF-8?

    - by borghe
    I'm quite puzzled by CouchDB: if I send a PUT request with some JSON string fields encoded as UTF-8, the non 7 bit ASCII characters get converted to the "\uXXXX" escape sequence. Is there any way to tell it not to escape UNICODE?

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  • SOAP vs REST (differences)

    - by Abdulaziz
    I have read articles about the differences between SOAP and REST as a web service communication protocol, but I think that the biggest advantage for REST over SOAP are : REST is more dynamic, no need for creating and updating UDDI. REST is not restricted to XML format. REST web services can send plain text, JSON, and also XML. But SOAP is more standardized (Ex; security). So, am I correct in these points? Thanks

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  • VLC (Server) re-stream Security Camera Feed

    - by Aaron
    I purchased a Swann Home Security DVR system and was hoping for some help on how to duplicate the streaming video on my server. In order to get their web view (streaming video in the browser) to work, I had to install the following plugins: HiDvrPlugin.dmg for mac. Hidvrocx.cab for Windows. I was originally thinking it was a sign of some form of DRM? Maybe. Maybe not. HTML wise, the following code is in the source of the safari version of the web view: <embed pluginspage="SurveilClient.dmg" width="10px" height="10px" type="application/x-scplugin" id="MacDiv" style="height: 592px; width: 720px; left: 278px; top: 61px; "> It seems to be the main display area. Using wireshark, I am able to see that the video stream is on port 9000. However, I have no idea what type of stream it is. I've tried opening it in VLC with no such luck. http://dvr_ip:9000 tcp://dvr_ip:9000 My hope was to do the following to redistribute the feed vlc dvr_ip:9000 --sout h264-version-on-localhost:3000 TLDR; Trying to re-distribute a stream from a security camera (can't tell the format) using vlc (re-distribute via h.264 / HTML5). Not sure how to accomplish this. Is it possible that the software has some type of DRM that only the plugins can decode?

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  • On a dual-GPU laptop, is using the discrete GPU ever more power efficient?

    - by Mahmoud Al-Qudsi
    Given a laptop with a dual integrated/discrete GPU configuration, is it ever more power efficient to use the discrete GPU instead of the integrated? Obviously when writing an email or working on a spreadsheet, the integrated GPU will always use less power. But let's say you're doing something graphics-medium but not graphics-intensive/heavy - is there a point where it actually makes sense to fire up the discrete GPU, not for performance but for power-saving reasons? Off the top of my head, I can think of a scenario where the external GPU supports hardware decoding of a particular video codec - I'd imagine there is a "price point" where using the GPU saves more energy than decoding that fully in software would. But I think most GPUs, integrated or discrete, pretty much decode just the plain-Jane h264. But maybe there is something more complicated, perhaps if you're doing something like desktop/windowing animations or a flash animation on a website (not an embedded flash video) - maybe the discrete GPU will use enough less power to make up for switching to it? I guess this question can be summed up as to whether or not you can say beyond doubt that if you don't care for performance on a laptop with two GPUs, always use the integrated GPU for maximum battery life.

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  • KVM Guest with NAT + Bridged networking

    - by Daniel
    I currently have a few KVM Guests on a dedicated server with bridged networking (this works) and i can successfully ping the outside ips i assign via ifconfig (in the guest). However, due to the fact i only have 5 public ipv4 ip addresses, i would like to port forward services like so: hostip:port - kvm_guest:port UPDATE I found out KVM comes with a "default" NAT interface, so added the virtual NIC to the Guest virsh configuration then configured it in the Guest, it has the ip address: 192.168.122.112 I can successfully ping 192.168.122.112 and access all ports on 192.168.122.112 from the KVM Host, so i tried to port forward like so: iptables -t nat -I PREROUTING -p tcp --dport 5222 -j DNAT --to-destination 192.168.122.112:2521 iptables -I FORWARD -m state -d 192.168.122.0/24 --state NEW,RELATED,ESTABLISHED -j ACCEPT telnet KVM_HOST_IP 5222 just hangs on "trying" telnet 192.168.122.112 2521 works [root@node1 ~]# tcpdump port 5222 tcpdump: WARNING: eth0: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 23:43:47.216181 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445777813 ecr 0,sackOK,eol], length 0 23:43:48.315747 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445778912 ecr 0,sackOK,eol], length 0 23:43:49.415606 IP 1.152.245.247.51183 > null.xmpp-client: Flags [S], seq 1183303931, win 65535, options [mss 1400,nop,wscale 3,nop,nop,TS val 445780010 ecr 0,sackOK,eol], length 0 7 packets received by filter 0 packets dropped by kernel [root@node1 ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere 192.168.122.0/24 state NEW,RELATED,ESTABLISHED Chain OUTPUT (policy ACCEPT) target prot opt source destination All help is appreciated. Thanks.

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  • How install ImageMagic 6.6.2 on Ubuntu 10.04 (lucid)

    - by Svyatoslavik
    How install ImageMagic 6.6.2 on Ubuntu 10.04 (lucid) Problem that lucid have old ImageMagic version(6.5.2) Its very important because me need work with SVG grafics, In my local pc I have ubuntu 11.04 and ImageMagic 6.6.2 and all work fine, In server I have 6.5... and I have problem. Reinstall ubuntu to 11.* this is no solution. I tried change /etc/apt/source.list from ubuntu 10.04 (lucid) to list from ubuntu 11.04 (natty) and update ImageMagic. After this action I have ImageMagic 6.6.2 (I looked phpinfo()) but ImageMagick is not work now. If I try do any action I get error: [error] 8996#0: *19983 FastCGI sent in stderr: "PHP Fatal error: Uncaught exception 'ImagickException' with message 'no decode delegate for this image format `/tmp/magick-XXnYKWKC' @ error/constitute.c/ReadImage/532' How it fix? Or how return to old version imagemagick? Problem if I try install from sources: /tmp/image/ImageMagick-6.7.2-7# ./configure configuring ImageMagick 6.7.2-7 checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking whether build environment is sane... yes checking for a BSD-compatible install... /usr/bin/install -c checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking for style of include used by make... GNU checking for gcc... gcc checking whether the C compiler works... no configure: error: in `/tmp/image/ImageMagick-6.7.2-7': configure: error: C compiler cannot create executables See `config.log' for more details /tmp/image/ImageMagick-6.7.2-7#

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  • Least CPU intensive way of streaming your screen on windows?

    - by sinni800
    Hello, sometimes I like capturing my screen for others to see. Only thing: I am playing games while I do it. I have tried a few streaming solutions where Windows Media Encoder coupled with my own Windows server appealed to me most, because I can change resolutions, etc. I also tried ustream coupled with the Flash applet and the Adobe Flash Encoder recording a Camtasia source. Camtasia has the disadvantage though that it shows the green-and-black-alternating borders and can not be targeted fullscreen. I like how xfire does it. But it doesn't work with every game, many are simply not supported. A few thoughts about this: Is there a program which captures like Fraps or XFire (based on Direct3D and OpenGL outputs) and exposes the output to a DirectShow source filter? Which brings me to: Is there hardware accelerated capturing directly from the graphics card? Maybe including direct encoding with help from OpenCL? Modern graphic cards decode BluRay content directly for example. I should have a modern enough graphics processor for this to be possible (see below). If using Windows Media Encoder: Which are the least CPU intensive settings? Which codec? Is there a newer codec than Windows Media 9? Is it less CPU intensive? I only have 7, 8 and 9 inside the Encoder Could the performance be massively increased by having a Quad-Core CPU (see below)? Bandwidth is no problem up to 1000 to 1500 kbit/s (I have 2048). My Computer specs: Intel Core 2 Duo E8400 4 GB DDR2-800 Ram Ati Radeon HD5770 Using Windows 7 Professional

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  • Varnish gets in a restart loop and causes the system to lock up; how can I fix?

    - by chrism2671
    Here is an extract from the syslog. Mar 2 14:01:10 ip-10-226-34-17 varnishd[20204]: Child (20205) not responding to ping, killing it. Mar 2 14:01:16 ip-10-226-34-17 varnishd[20204]: Child (20205) not responding to ping, killing it. Mar 2 14:01:16 ip-10-226-34-17 varnishd[20204]: Child (20205) died signal=3 Mar 2 14:01:21 ip-10-226-34-17 varnishd[20204]: Child cleanup complete Mar 2 14:01:21 ip-10-226-34-17 varnishd[20204]: child (13224) Started Mar 2 14:01:21 ip-10-226-34-17 varnishd[20204]: Child (13224) said Closed fds: 4 5 6 10 11 13 14 Mar 2 14:01:21 ip-10-226-34-17 varnishd[20204]: Child (13224) said Child starts Mar 2 14:01:21 ip-10-226-34-17 varnishd[20204]: Child (13224) said managed to mmap 536870912 bytes of 536870912 Mar 2 14:01:21 ip-10-226-34-17 varnishd[20204]: Child (13224) said Ready Mar 2 14:01:35 ip-10-226-34-17 varnishd[20204]: Child (13224) not responding to ping, killing it. Mar 2 14:02:10 ip-10-226-34-17 last message repeated 7 times Mar 2 14:03:15 ip-10-226-34-17 last message repeated 13 times Mar 2 14:03:20 ip-10-226-34-17 varnishd[20204]: Child (13224) not responding to ping, killing it. Mar 2 14:05:53 ip-10-226-34-17 varnishd[20204]: Child (13224) not responding to ping, killing it. Mar 2 14:05:53 ip-10-226-34-17 varnishd[20204]: Child (13224) not responding to ping, killing it. Mar 2 14:05:53 ip-10-226-34-17 varnishd[20204]: Child (13224) died signal=3 Mar 2 14:05:53 ip-10-226-34-17 varnishd[20204]: Child cleanup complete Mar 2 14:05:53 ip-10-226-34-17 varnishd[20204]: child (13288) Started I'm not expecting a solution here but any help just to decode what each line is doing would be very instructive. Many thanks!

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  • convert a pdf/djvu file to png's under Linux how? [closed]

    - by user66732
    Imagemagick doesn't work (Fedora 14) on one PDF file: $ convert -density 300 INPUT.PDF out.png Error: /ioerror in --showpage-- Operand stack: 1 true Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1878 1 3 %oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop --nostringval-- --nostringval-- 141 1 319 --nostringval-- %for_pos_int_continue --nostringval-- --nostringval-- 1761 0 9 %oparray_pop --nostringval-- --nostringval-- Dictionary stack: --dict:1157/1684(ro)(G)-- --dict:1/20(G)-- --dict:75/200(L)-- --dict:75/200(L)-- --dict:108/127(ro)(G)-- --dict:288/300(ro)(G)-- --dict:22/25(L)-- --dict:6/8(L)-- --dict:22/40(L)-- Current allocation mode is local Last OS error: 27 GPL Ghostscript 8.71: Unrecoverable error, exit code 1 convert: Postscript delegate failed INPUT.PDF': @ error/pdf.c/ReadPDFImage/645.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ And it doesn't work on a djvu file: $ convert -density 300 INPUT.DJVU out.png convert: no decode delegate for this image format INPUT.DJVU' @ error/constitute.c/ReadImage/532.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ an extra: the output filenames. out-0.png out-1.png ... out-9.png out-10.png out-11.png .. out-123.png out-124.png is there a way to be like this?: out-000.png out-001.png ... out-009.png out-010.png out-011.png .. out-123.png out-124.png because they would be in wrong order: out-0.png out-1.png out-10.png out-11.png out-123.png out-124.png out-9.png thank you :\

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  • Downmix surround to Dolby Pro-Logic at the OS/driver level in Windows 7?

    - by davr
    First off, I'm talking about Dolby Pro-Logic, a really old tech for encoding 4 audio channels (L/R/C/SR) into two analog outputs, and then extracting them again. It was used in surround sound systems in the last century. I have a modern PC that can output 5.1 analog audio (Three outputs on the back carry six channels of audio). But I have a really old surround sound reciever that only has a two-channel, L/R input, which it extracts 4 channels of audio from, and outputs to 5.1 speakers. What I want is some way for the OS, Windows 7, to act as if I really had 5.1 audio channels available, so applications produce surround audio, but before outputting it out of the back of my PC, apply Dolby Pro-Logic matrix encoding so that it outputs over only two channels. These two channels would then get sent to my receiver via a RCA cable, which would decode it again and drive the surround speakers. Is anything like this possible? I'm pretty sure I could do it at an application / codec level, but I'm looking for something that I just have to set once.

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  • Wireshark WPA 4-way handshake

    - by cYrus
    From this wiki page: WPA and WPA2 use keys derived from an EAPOL handshake to encrypt traffic. Unless all four handshake packets are present for the session you're trying to decrypt, Wireshark won't be able to decrypt the traffic. You can use the display filter eapol to locate EAPOL packets in your capture. I've noticed that the decryption works with (1, 2, 4) too, but not with (1, 2, 3). As far as I know the first two packets are enough, at least for what concern unicast traffic. Can someone please explain exactly how does Wireshark deal with that, in other words why does only the former sequence work, given that the fourth packet is just an acknowledgement? Also, is it guaranteed that the (1, 2, 4) will always work when (1, 2, 3, 4) works? Test case This is the gzipped handshake (1, 2, 4) and an ecrypted ARP packet (SSID: SSID, password: password) in base64 encoding: H4sICEarjU8AA2hhbmRzaGFrZS5jYXAAu3J400ImBhYGGPj/n4GhHkhfXNHr37KQgWEqAwQzMAgx 6HkAKbFWzgUMhxgZGDiYrjIwKGUqcW5g4Ldd3rcFQn5IXbWKGaiso4+RmSH+H0MngwLUZMarj4Rn S8vInf5yfO7mgrMyr9g/Jpa9XVbRdaxH58v1fO3vDCQDkCNv7mFgWMsAwXBHMoEceQ3kSMZbDFDn ITk1gBnJkeX/GDkRjmyccfus4BKl75HC2cnW1eXrjExNf66uYz+VGLl+snrF7j2EnHQy3JjDKPb9 3fOd9zT0TmofYZC4K8YQ8IkR6JaAT0zIJMjxtWaMmCEMdvwNnI5PYEYJYSTHM5EegqhggYbFhgsJ 9gJXy42PMx9JzYKEcFkcG0MJULYE2ZEGrZwHIMnASwc1GSw4mmH1JCCNQYEF7C7tjasVT+0/J3LP gie59HFL+5RDIdmZ8rGMEldN5s668eb/tp8vQ+7OrT9jPj/B7425QIGJI3Pft72dLxav8BefvcGU 7+kfABxJX+SjAgAA Decode with: $ base64 -d | gunzip > handshake.cap Run tshark to see if it correctly decrypt the ARP packet: $ tshark -r handshake.cap -o wlan.enable_decryption:TRUE -o wlan.wep_key1:wpa-pwd:password:SSID It should print: 1 0.000000 D-Link_a7:8e:b4 - HonHaiPr_22:09:b0 EAPOL Key 2 0.006997 HonHaiPr_22:09:b0 - D-Link_a7:8e:b4 EAPOL Key 3 0.038137 HonHaiPr_22:09:b0 - D-Link_a7:8e:b4 EAPOL Key 4 0.376050 ZyxelCom_68:3a:e4 - HonHaiPr_22:09:b0 ARP 192.168.1.1 is at 00:a0:c5:68:3a:e4

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  • OpenVPN + iptables / NAT routing

    - by Mikeage
    Hi, I'm trying to set up an OpenVPN VPN, which will carry some (but not all) traffic from the clients to the internet via the OpenVPN server. My OpenVPN server has a public IP on eth0, and is using tap0 to create a local network, 192.168.2.x. I have a client which connects from local IP 192.168.1.101 and gets VPN IP 192.168.2.3. On the server, I ran: iptables -A INPUT -i tap+ -j ACCEPT iptables -A FORWARD -i tap+ -j ACCEPT iptables -t nat -A POSTROUTING -s 192.168.2.0/24 -o eth0 -j MASQUERADE On the client, the default remains to route via 192.168.1.1. In order to point it to 192.168.2.1 for HTTP, I ran ip rule add fwmark 0x50 table 200 ip route add table 200 default via 192.168.2.1 iptables -t mangle -A OUTPUT -j MARK -p tcp --dport 80 --set-mark 80 Now, if I try accessing a website on the client (say, wget google.com), it just hangs there. On the server, I can see $ sudo tcpdump -n -i tap0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on tap0, link-type EN10MB (Ethernet), capture size 96 bytes 05:39:07.928358 IP 192.168.1.101.34941 > 74.125.67.100.80: S 4254520618:4254520618(0) win 5840 <mss 1334,sackOK,timestamp 558838 0,nop,wscale 5> 05:39:10.751921 IP 192.168.1.101.34941 > 74.125.67.100.80: S 4254520618:4254520618(0) win 5840 <mss 1334,sackOK,timestamp 559588 0,nop,wscale 5> Where 74.125.67.100 is the IP it gets for google.com . Why isn't the MASQUERADE working? More precisely, I see that the source showing up as 192.168.1.101 -- shouldn't there be something to indicate that it came from the VPN? Edit: Some routes [from the client] $ ip route show table main 192.168.2.0/24 dev tap0 proto kernel scope link src 192.168.2.4 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.101 metric 2 169.254.0.0/16 dev wlan0 scope link metric 1000 default via 192.168.1.1 dev wlan0 proto static $ ip route show table 200 default via 192.168.2.1 dev tap0

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  • convert a pdf/djvu file to png's under Linux how?

    - by user62367
    Imagemagick doesn't work (Fedora 14) on one PDF file: $ convert -density 300 INPUT.PDF out.png Error: /ioerror in --showpage-- Operand stack: 1 true Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1878 1 3 %oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop --nostringval-- --nostringval-- 141 1 319 --nostringval-- %for_pos_int_continue --nostringval-- --nostringval-- 1761 0 9 %oparray_pop --nostringval-- --nostringval-- Dictionary stack: --dict:1157/1684(ro)(G)-- --dict:1/20(G)-- --dict:75/200(L)-- --dict:75/200(L)-- --dict:108/127(ro)(G)-- --dict:288/300(ro)(G)-- --dict:22/25(L)-- --dict:6/8(L)-- --dict:22/40(L)-- Current allocation mode is local Last OS error: 27 GPL Ghostscript 8.71: Unrecoverable error, exit code 1 convert: Postscript delegate failed INPUT.PDF': @ error/pdf.c/ReadPDFImage/645.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ And it doesn't work on a djvu file: $ convert -density 300 INPUT.DJVU out.png convert: no decode delegate for this image format INPUT.DJVU' @ error/constitute.c/ReadImage/532.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ an extra: the output filenames. out-0.png out-1.png ... out-9.png out-10.png out-11.png .. out-123.png out-124.png is there a way to be like this?: out-000.png out-001.png ... out-009.png out-010.png out-011.png .. out-123.png out-124.png because they would be in wrong order: out-0.png out-1.png out-10.png out-11.png out-123.png out-124.png out-9.png thank you :\

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  • convert a pdf/djvu file to png's under Linux how?

    - by user62367
    Imagemagick doesn't work (Fedora 14) on one PDF file: $ convert -density 300 INPUT.PDF out.png Error: /ioerror in --showpage-- Operand stack: 1 true Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1878 1 3 %oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop --nostringval-- --nostringval-- 141 1 319 --nostringval-- %for_pos_int_continue --nostringval-- --nostringval-- 1761 0 9 %oparray_pop --nostringval-- --nostringval-- Dictionary stack: --dict:1157/1684(ro)(G)-- --dict:1/20(G)-- --dict:75/200(L)-- --dict:75/200(L)-- --dict:108/127(ro)(G)-- --dict:288/300(ro)(G)-- --dict:22/25(L)-- --dict:6/8(L)-- --dict:22/40(L)-- Current allocation mode is local Last OS error: 27 GPL Ghostscript 8.71: Unrecoverable error, exit code 1 convert: Postscript delegate failed INPUT.PDF': @ error/pdf.c/ReadPDFImage/645.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ And it doesn't work on a djvu file: $ convert -density 300 INPUT.DJVU out.png convert: no decode delegate for this image format INPUT.DJVU' @ error/constitute.c/ReadImage/532.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ an extra: the output filenames. out-0.png out-1.png ... out-9.png out-10.png out-11.png .. out-123.png out-124.png is there a way to be like this?: out-000.png out-001.png ... out-009.png out-010.png out-011.png .. out-123.png out-124.png because they would be in wrong order: out-0.png out-1.png out-10.png out-11.png out-123.png out-124.png out-9.png thank you :\

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  • OpenVPN + iptables / NAT routing

    - by Mikeage
    I'm trying to set up an OpenVPN VPN, which will carry some (but not all) traffic from the clients to the internet via the OpenVPN server. My OpenVPN server has a public IP on eth0, and is using tap0 to create a local network, 192.168.2.x. I have a client which connects from local IP 192.168.1.101 and gets VPN IP 192.168.2.3. On the server, I ran: iptables -A INPUT -i tap+ -j ACCEPT iptables -A FORWARD -i tap+ -j ACCEPT iptables -t nat -A POSTROUTING -s 192.168.2.0/24 -o eth0 -j MASQUERADE On the client, the default remains to route via 192.168.1.1. In order to point it to 192.168.2.1 for HTTP, I ran ip rule add fwmark 0x50 table 200 ip route add table 200 default via 192.168.2.1 iptables -t mangle -A OUTPUT -j MARK -p tcp --dport 80 --set-mark 80 Now, if I try accessing a website on the client (say, wget google.com), it just hangs there. On the server, I can see $ sudo tcpdump -n -i tap0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on tap0, link-type EN10MB (Ethernet), capture size 96 bytes 05:39:07.928358 IP 192.168.1.101.34941 > 74.125.67.100.80: S 4254520618:4254520618(0) win 5840 <mss 1334,sackOK,timestamp 558838 0,nop,wscale 5> 05:39:10.751921 IP 192.168.1.101.34941 > 74.125.67.100.80: S 4254520618:4254520618(0) win 5840 <mss 1334,sackOK,timestamp 559588 0,nop,wscale 5> Where 74.125.67.100 is the IP it gets for google.com . Why isn't the MASQUERADE working? More precisely, I see that the source showing up as 192.168.1.101 -- shouldn't there be something to indicate that it came from the VPN? Edit: Some routes [from the client] $ ip route show table main 192.168.2.0/24 dev tap0 proto kernel scope link src 192.168.2.4 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.101 metric 2 169.254.0.0/16 dev wlan0 scope link metric 1000 default via 192.168.1.1 dev wlan0 proto static $ ip route show table 200 default via 192.168.2.1 dev tap0

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  • Are there tools available for trimming PDF margins?

    - by Charles Duffy
    I have an ebook I'm trying to read in PDF format on a Kindle. Unfortunately, the page headers and footers have some content (page number and copyright info, respectively) preventing the device from scaling the actual text to match its usable area viewing area, thus leaving the actual content too small to read. Various tools are available which will trim off whitespace, but the Kindle already does this; my goal, by contrast, is to remove printed matter outside of a defined bounding box, and the only tool I've found for the purpose is moderately expensive commercial software. I could probably generate a mask in Inkscape; split out the individual pages using pdftk, apply the mask to each page individually (outputting to postscript), and recombine the numerous postscript files into a single PDF. However, this decode/reencode steps would be pretty unfortunate in terms of document size; something able to operate with a bit more finesse would be ideal. I have all major operating systems handy (Windows, several modern Linux distros, a Mac, etc) so solutions don't need to be constrained by platform. Suggestions? (I've reported the issue to the author, who mentioned it to his editor, who hasn't done anything about the issue over the course of more than a month, making the zero-work approach evidently nonproductive).

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  • Cisco FWSM -> ASA upgrade broke our mail server

    - by Mike Pennington
    We send mail with unicode asian characters to our mail server on the other side of our WAN... immediately after upgrading from a FWSM running 2.3(2) to an ASA5550 running 8.2(5), we saw failures on mail jobs that contained unicode. The symptoms are pretty clear... using the ASA's packet capture utility, we snagged the traffic before and after it left the ASA... access-list PCAP line 1 extended permit tcp any host 192.0.2.25 eq 25 capture pcap_inside type raw-data access-list PCAP buffer 1500000 packet-length 9216 interface inside capture pcap_outside type raw-data access-list PCAP buffer 1500000 packet-length 9216 interface WAN I downloaded the pcaps from the ASA by going to https://<fw_addr>/pcap_inside/pcap and https://<fw_addr>/pcap_outside/pcap... when I looked at them with Wireshark Follow TCP Stream, the inside traffic going into the ASA looks like this EHLO metabike AUTH LOGIN YzFwbUlciXNlck== cZUplCVyXzRw But the same mail leaving the ASA on the outside interface looks like this... EHLO metabike AUTH LOGIN YzFwbUlciXNlck== XXXXXXXXXXXX The XXXX characters are concerning... I fixed the issue by disabling ESMTP inspection: wan-fw1(config)# policy-map global_policy wan-fw1(config-pmap)# class inspection_default wan-fw1(config-pmap-c)# no inspect esmtp wan-fw1(config-pmap-c)# end The $5 question... our old FWSM used SMTP fixup without issues... mail went down at the exact moment that we brought the new ASAs online... what specifically is different about the ASA that it is now breaking this mail? Note: usernames / passwords / app names were changed... don't bother trying to Base64-decode this text.

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  • android app does not show up on my device or the emulator in eclipse

    - by Sam
    hey everyone, I have no errors in my app-code what so ever, but when i try to run in on either my cell or my emulator/the avd in eclipse i can't run it because it doesn't show up on either one. this is my console output: [2011-02-04 08:14:58 - Versuch] Uploading Versuch.apk onto device 'CB511L2WTB' [2011-02-04 08:14:58 - Versuch] Installing Versuch.apk... [2011-02-04 08:15:01 - Versuch] Success! [2011-02-04 08:15:01 - Versuch] \Versuch\bin\Versuch.apk installed on device [2011-02-04 08:15:01 - Versuch] Done! and this is my LogCat output, which tells me nothing, but you are the experts ;) 02-04 08:18:10.020: DEBUG/dalvikvm(22167): GC freed 2576 objects / 559120 bytes in 37ms 02-04 08:18:10.700: DEBUG/dalvikvm(6709): GC freed 7692 objects / 478912 bytes in 41ms 02-04 08:18:11.170: DEBUG/dalvikvm(31774): GC freed 3367 objects / 163464 bytes in 122ms 02-04 08:18:13.230: DEBUG/dalvikvm(22167): GC freed 2790 objects / 552328 bytes in 38ms 02-04 08:18:14.650: DEBUG/dalvikvm(6709): GC freed 8443 objects / 540440 bytes in 39ms 02-04 08:18:16.260: DEBUG/dalvikvm(31921): GC freed 214 objects / 9824 bytes in 216ms 02-04 08:18:16.670: DEBUG/dalvikvm(22167): GC freed 3232 objects / 561256 bytes in 40ms 02-04 08:18:18.600: DEBUG/dalvikvm(6709): GC freed 7718 objects / 481952 bytes in 39ms 02-04 08:18:19.210: DEBUG/dalvikvm(1129): GC freed 6898 objects / 275328 bytes in 109ms 02-04 08:18:19.690: DEBUG/dalvikvm(22167): GC freed 2968 objects / 571232 bytes in 39ms 02-04 08:18:21.440: DEBUG/dalvikvm(1212): GC freed 1020 objects / 49328 bytes in 395ms 02-04 08:18:22.570: DEBUG/dalvikvm(6709): GC freed 7893 objects / 495616 bytes in 40ms 02-04 08:18:23.060: DEBUG/dalvikvm(22167): GC freed 3117 objects / 561912 bytes in 41ms 02-04 08:18:25.860: DEBUG/dalvikvm(22167): GC freed 2924 objects / 558448 bytes in 36ms 02-04 08:18:26.350: DEBUG/dalvikvm(32098): GC freed 4662 objects / 495496 bytes in 290ms 02-04 08:18:26.410: DEBUG/dalvikvm(22167): GC freed 1077 objects / 130680 bytes in 33ms 02-04 08:18:27.080: DEBUG/dalvikvm(6709): GC freed 7912 objects / 485368 bytes in 40ms 02-04 08:18:28.190: DEBUG/dalvikvm(22167): GC freed 953 objects / 767272 bytes in 33ms 02-04 08:18:29.500: DEBUG/dalvikvm(1129): GC freed 6756 objects / 270480 bytes in 105ms 02-04 08:18:30.500: WARN/System.err(22536): java.lang.Exception: You must call com.mercuryintermedia.productconfiguration.initialize() first 02-04 08:18:30.670: WARN/System.err(22536): at com.mercuryintermedia.ProductConfiguration.getProductName(ProductConfiguration.java:136) 02-04 08:18:30.670: WARN/System.err(22536): at com.mercuryintermedia.api.rest.Item.getPublishingContainersItems(Item.java:15) 02-04 08:18:30.670: WARN/System.err(22536): at com.mercuryintermedia.mflow.ContainerHelper.getContainerFromServer(ContainerHelper.java:68) 02-04 08:18:30.670: WARN/System.err(22536): at com.mercuryintermedia.mflow.ContainerHelper.run(ContainerHelper.java:46) 02-04 08:18:31.090: DEBUG/dalvikvm(6709): GC freed 10545 objects / 682480 bytes in 49ms 02-04 08:18:31.120: DEBUG/dalvikvm(1813): GC freed 5970 objects / 310912 bytes in 60ms 02-04 08:18:31.320: DEBUG/dalvikvm(22167): GC freed 2468 objects / 539520 bytes in 39ms 02-04 08:18:34.110: DEBUG/dalvikvm(22167): GC freed 2879 objects / 569008 bytes in 35ms 02-04 08:18:34.920: DEBUG/dalvikvm(6709): GC freed 7029 objects / 424632 bytes in 35ms 02-04 08:18:36.150: DEBUG/dalvikvm(9060): GC freed 564 objects / 27840 bytes in 89ms 02-04 08:18:36.630: DEBUG/dalvikvm(22167): GC freed 2437 objects / 554000 bytes in 35ms 02-04 08:18:38.760: DEBUG/dalvikvm(6709): GC freed 8309 objects / 545032 bytes in 36ms 02-04 08:18:39.270: DEBUG/dalvikvm(1129): GC freed 6958 objects / 278352 bytes in 107ms 02-04 08:18:39.970: DEBUG/dalvikvm(22167): GC freed 2915 objects / 560312 bytes in 38ms 02-04 08:18:41.260: DEBUG/dalvikvm(6184): GC freed 373 objects / 26152 bytes in 205ms 02-04 08:18:42.780: DEBUG/dalvikvm(6709): GC freed 7212 objects / 447696 bytes in 36ms 02-04 08:18:43.160: DEBUG/dalvikvm(22167): GC freed 3106 objects / 561824 bytes in 39ms 02-04 08:18:46.310: DEBUG/dalvikvm(22167): GC freed 3110 objects / 564080 bytes in 45ms 02-04 08:18:46.650: DEBUG/dalvikvm(6709): GC freed 7508 objects / 468832 bytes in 36ms 02-04 08:18:48.820: DEBUG/dalvikvm(31712): GC freed 13795 objects / 828232 bytes in 203ms 02-04 08:18:49.040: DEBUG/dalvikvm(1129): GC freed 6918 objects / 276224 bytes in 109ms 02-04 08:18:49.640: DEBUG/dalvikvm(22167): GC freed 2952 objects / 562168 bytes in 37ms 02-04 08:18:50.630: DEBUG/dalvikvm(6709): GC freed 8332 objects / 549680 bytes in 35ms 02-04 08:18:52.770: DEBUG/dalvikvm(22167): GC freed 3108 objects / 563192 bytes in 37ms 02-04 08:18:54.400: DEBUG/dalvikvm(6709): GC freed 7509 objects / 469016 bytes in 35ms 02-04 08:18:55.900: DEBUG/dalvikvm(22167): GC freed 3121 objects / 572920 bytes in 38ms 02-04 08:18:58.150: DEBUG/dalvikvm(6709): GC freed 7408 objects / 465456 bytes in 35ms 02-04 08:18:58.710: DEBUG/dalvikvm(1129): GC freed 6908 objects / 276440 bytes in 107ms 02-04 08:18:59.190: DEBUG/dalvikvm(22167): GC freed 3160 objects / 563144 bytes in 38ms 02-04 08:19:02.080: DEBUG/dalvikvm(6709): GC freed 7436 objects / 468040 bytes in 36ms 02-04 08:19:02.380: DEBUG/dalvikvm(22167): GC freed 3104 objects / 557600 bytes in 39ms 02-04 08:19:05.050: DEBUG/dalvikvm(22167): GC freed 2860 objects / 570072 bytes in 35ms 02-04 08:19:05.810: DEBUG/dalvikvm(6709): GC freed 7508 objects / 469080 bytes in 35ms 02-04 08:19:06.500: DEBUG/skia(22167): --- decoder->decode returned false 02-04 08:19:07.960: DEBUG/dalvikvm(22167): GC freed 2747 objects / 520008 bytes in 36ms 02-04 08:19:08.180: DEBUG/dalvikvm(1129): GC freed 7866 objects / 317304 bytes in 107ms 02-04 08:19:09.540: DEBUG/dalvikvm(6709): GC freed 8220 objects / 539688 bytes in 36ms 02-04 08:19:10.810: DEBUG/dalvikvm(22167): GC freed 2898 objects / 596824 bytes in 37ms 02-04 08:19:13.360: DEBUG/dalvikvm(22167): GC freed 2503 objects / 398936 bytes in 35ms 02-04 08:19:13.370: INFO/dalvikvm-heap(22167): Grow heap (frag case) to 5.029MB for 570264-byte allocation 02-04 08:19:13.400: DEBUG/dalvikvm(22167): GC freed 702 objects / 24976 bytes in 31ms 02-04 08:19:13.400: DEBUG/skia(22167): --- decoder->decode returned false 02-04 08:19:13.540: DEBUG/dalvikvm(6709): GC freed 7481 objects / 466544 bytes in 36ms 02-04 08:19:15.600: DEBUG/WifiService(1129): got ACTION_DEVICE_IDLE 02-04 08:19:15.960: INFO/wpa_supplicant(2522): CTRL-EVENT-DRIVER-STATE STOPPED 02-04 08:19:15.960: VERBOSE/WifiMonitor(1129): Event [CTRL-EVENT-DRIVER-STATE STOPPED] 02-04 08:19:17.270: DEBUG/dalvikvm(22167): GC freed 2372 objects / 1266992 bytes in 36ms 02-04 08:19:17.520: DEBUG/dalvikvm(6709): GC freed 7996 objects / 519128 bytes in 37ms 02-04 08:19:18.150: DEBUG/dalvikvm(1129): GC freed 7110 objects / 285032 bytes in 108ms 02-04 08:19:20.460: DEBUG/dalvikvm(22167): GC freed 3327 objects / 565264 bytes in 36ms 02-04 08:19:21.250: DEBUG/dalvikvm(6709): GC freed 7632 objects / 486024 bytes in 37ms 02-04 08:19:26.470: DEBUG/dalvikvm(31774): GC freed 345 objects / 16160 bytes in 96ms 02-04 08:19:30.423: WARN/System.err(22536): java.lang.Exception: You must call com.mercuryintermedia.productconfiguration.initialize() first 02-04 08:19:30.423: WARN/System.err(22536): at com.mercuryintermedia.ProductConfiguration.getProductName(ProductConfiguration.java:136) 02-04 08:19:30.423: WARN/System.err(22536): at com.mercuryintermedia.api.rest.Item.getPublishingContainersItems(Item.java:15) 02-04 08:19:30.423: WARN/System.err(22536): at com.mercuryintermedia.mflow.ContainerHelper.getContainerFromServer(ContainerHelper.java:68) 02-04 08:19:30.423: WARN/System.err(22536): at com.mercuryintermedia.mflow.ContainerHelper.run(ContainerHelper.java:46) 02-04 08:20:05.280: DEBUG/dalvikvm(1813): GC freed 741 objects / 36840 bytes in 91ms 02-04 08:20:23.580: DEBUG/WifiService(1129): ACTION_BATTERY_CHANGED pluggedType: 2 02-04 08:20:30.423: WARN/System.err(22536): java.lang.Exception: You must call com.mercuryintermedia.productconfiguration.initialize() first 02-04 08:20:30.423: WARN/System.err(22536): at com.mercuryintermedia.ProductConfiguration.getProductName(ProductConfiguration.java:136) 02-04 08:20:30.423: WARN/System.err(22536): at com.mercuryintermedia.api.rest.Item.getPublishingContainersItems(Item.java:15) 02-04 08:20:30.423: WARN/System.err(22536): at com.mercuryintermedia.mflow.ContainerHelper.getContainerFromServer(ContainerHelper.java:68) 02-04 08:20:30.423: WARN/System.err(22536): at com.mercuryintermedia.mflow.ContainerHelper.run(ContainerHelper.java:46) 02-04 08:20:53.970: INFO/FastDormancyManager(1129): Fast Dormant executed. ExecuteCount:2683 NonExecuteCount:25773 I really hope you can help me.

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