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  • confusion about transactions and msdtc

    - by muhan
    I have some basic confusion about how transactions and msdtc work together. I have a basic server/client winforms app. The app uses transactionscope to encapsulate several sql commands that are executed on the sql server. The app seemed to work fine when I enabled msdtc network access on the server only. Then one day it stopped working saying network access was not enabled. Now it seems that I have to enable msdtc network access on both the client computer and server for transactionscope to work. Does the client or server msdtc service do the transaction work? Or maybe its both? Does anyone have guidance on whether msdtc network access is needed on both client and server or just server?

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  • Multiple domains and product categories but one company?

    - by Brad
    Hi Guys, My company is expanding online, and we are wondering the best way to go about our eCommerce strategy. We sell a wide range of products of a single material, lets use ceramics as an example. The current competition in our niche online is medium level. We currently have one site selling all our range: ceramicstuff.com However I have just found that ceramickitchenware.com, ceramicbowls.com, etc are currently unregistered, despite quite decent traffic search volume around those keywords monthly. What do you guys think about registering these domains to increase traffic? Would I put a standalone sites on those domains, or do I point them to my main domain? Or do I use them a "micro" sites to offer information, and then link to buy at my main domain, etc? Summary: I'm looking to employ "spammy" type SEO tricks, multiple domains, etc but the key point is I will be generating REAL content, and offering a REAL QUALITY product. How to proceed? Thanks!

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  • How to send packets via a pptp vpn tunnel?

    - by Phill
    I'm trying to send certain port traffic through my ppp0 interface it's a pptp vpn tunnel, First, I'm using a wireless usb interface, I connect up to my access point, then I initiate my vpn, there is a connection but I do not channel all connexions through that, nor do I want to, so, say I want to channel all port 80 packets through my vpn (interface dev ppp0). I first run: iptables -t mangle -A OUTPUT -p tcp --dport 80 -j MARK --set-mark 0xa to mark the correct packets then I add a table named vpn_table, I then add ip route add default dev ppp0 table vpn_table when I do that traffic begins to dribble through the ppp0, but no pages load. I supose I must have caused some sort of coflict, or the route I'm adding in vpn_table isn't quite right. I'm not sure, I think I'm marking the packets correctly but I can't be sure of that either. UPDATE: I think i've got part of the issue solved: running tcpdump -i ppp0 showed me that indeed there was outgoing requests via ppp0, now, there is never a response, and pages do not load with using that interface..i'm still missing something.

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  • Nginx and Google Appengine Reverse Proxy Security

    - by jmq
    The scenario is that I have a Google compute node running Nginx as a reverse proxy to the google appengine. The appengine is used to service REST calls from an single page application (SPA). HTTPS is used to the Nginx front end from the Internet. Do I also need to make the traffic from the Nginx reverse proxy to the appengine secure by turning on HTTPS on the appengine? I would like to avoid the overhead of HTTPS between the proxy and the backend. My thinking was that once the traffic has arrived at Nginx encrypted, decrypted in Nginx, and then sent via the reverse proxy inside of Google's infrastructure it would be secure. Is it safe in this case to not use HTTPS?

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  • Makefile : Build in a separate directory tree

    - by Simone Margaritelli
    My project (an interpreted language) has a standard library composed by multiple files, each of them will be built into an .so dynamic library that the interpreter will load upon user request (with an import directive). Each source file is located into a subdirectory representing its "namespace", for instance : The build process has to create a "build" directory, then when each file is compiling has to create its namespace directory inside the "build" one, for instance, when compiling std/io/network/tcp.cc he run an mkdir command with mkdir -p build/std/io/network The Makefile snippet is : STDSRC=stdlib/std/hashing/md5.cc \ stdlib/std/hashing/crc32.cc \ stdlib/std/hashing/sha1.cc \ stdlib/std/hashing/sha2.cc \ stdlib/std/io/network/http.cc \ stdlib/std/io/network/tcp.cc \ stdlib/std/io/network/smtp.cc \ stdlib/std/io/file.cc \ stdlib/std/io/console.cc \ stdlib/std/io/xml.cc \ stdlib/std/type/reflection.cc \ stdlib/std/type/string.cc \ stdlib/std/type/matrix.cc \ stdlib/std/type/array.cc \ stdlib/std/type/map.cc \ stdlib/std/type/type.cc \ stdlib/std/type/binary.cc \ stdlib/std/encoding.cc \ stdlib/std/os/dll.cc \ stdlib/std/os/time.cc \ stdlib/std/os/threads.cc \ stdlib/std/os/process.cc \ stdlib/std/pcre.cc \ stdlib/std/math.cc STDOBJ=$(STDSRC:.cc=.so) all: stdlib stdlib: $(STDOBJ) .cc.so: mkdir -p `dirname $< | sed -e 's/stdlib/stdlib\/build/'` $(CXX) $< -o `dirname $< | sed -e 's/stdlib/stdlib\/build/'`/`basename $< .cc`.so $(CFLAGS) $(LDFLAGS) I have two questions : 1 - The problem is that the make command, i really don't know why, doesn't check if a file was modified and launch the build process on ALL the files no matter what, so if i need to build only one file, i have to build them all or use the command : make path/to/single/file.so Is there any way to solve this? 2 - Any way to do this in a "cleaner" way without have to distribute all the build directories with sources? Thanks

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  • Should I block bots from my site and why?

    - by Frank E
    My logs are full of bot visitors, often from Eastern Europe and China. The bots are identified as Ahrefs, Seznam, LSSRocketCrawler, Yandex, Sogou and so on. Should I block these bots from my site and why? Which ones have a legitimate purpose in increasing traffic to my site? Many of them are SEO. I have to say I see less traffic if anything since the bots have arrived in large numbers. It would not be too hard to block these since they all admit in their User Agent that they are bots.

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