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• Point IP to site for testing before delegation?

  - by cosmicbdog

  I'm migrating to a new server and would like to test before redelegating the domain over. I have some familiarity with setting up apache virtual hosts, but limited knowledge. How can I go about setting this up? My server already has a domain delegated to the server, and the IP by default has been setup to point to that. I've been told I can just add an entry to /etc/hosts/ which I haven't been able to understand what I can add in there to make this work. Any pointers would be greatly appreciated!

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• Squid 2.7.6 not honoring ACL rules

  - by peppery

  Hello there, I have a /24 block of IP addresses assigned to a single server that I have been attempting to install Squid on an Ubuntu server machine. All of the IP addresses are set up correctly (aliases of eth0) in /etc/networking and work as they should be, using cURL I can specify an interface and it goes out on the correct address as it should be. I would like Squid to take the incoming IP address the request was sourced to and proxy the request out on the same IP (e.g incoming 123.123.123.1:3128 - 123.123.123.1, .2 - .2, etc) and have set up these ACL rules in /etc/squid.conf acl ip1 myip x.x.x.1 tcp_outgoing_address x.x.x.1 ip1 acl ip2 myip x.x.x.2 tcp_outgoing_address x.x.x.2 ip2 acl ip3 myip x.x.x.3 tcp_outgoing_address x.x.x.3 ip3 and so on, as this seems to be the only way to do what I want (from research). However, after much frustration, Squid seems to be ignoring these rules and sending requests out on the default interface. Does anybody have any suggestions? Thanks.

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• Dark Windows Themes

  - by CaffGeek

  I spend all day staring at computer screens. I have changed my Visual Studio theme to a dark theme, and find it much easier on the eyes. I'd like to change the rest of windows. Unfortunately, the only themes installed by default that are dark, are high contrast. Which is NOT what I am going for here. I can't seem to find an official dark theme, that isn't high contrast. I've found dynamic black, which is a good example of what I'm looking for, but it's not an official theme. Is there anything out there?

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• File must be saved as a copy with this selection?

  - by Mick

  I have created an image in photoshop 7 and am now attempting to save it as a png. I click "Save As" and am presented with a save file dialog with *.PSD selected by default. If I then select *.PNG a yellow triangle with a black exclamation mark appears next to a greyed out box called "Layers" and the message "file must be saved as a copy with this selection" appears. This is confusing me because the image is comprised of only a single layer. How do I resolve this?

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• How can I avoid logging file not founds commonly caused by vulnerability scanners?

  - by agweber

  My apache logs are pretty much full of 'admin.php' not found or unable to stat and similar statements for wp-login.php, default.php, and so on that are often sought after by vulnerability scanners. Can I configure apache to avoid logging these statements for certain files? I don't want to filter out all file not founds as I'd like to fix bad links that I may have put out over the years that no longer correspond to the same files. I can use a tool like fail2ban or denyhosts, but from previous experiences it comes from so many places that those errors are still going to pile up, and the reducing those error messages are what this question is asking about.

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• Should I upgrade memory for my dedicated server?

  - by mc1000

  My memory usage hangs around 25% (swap is generally 1%) on my dedicated server and load is around 2-5. My host recommended that I upgrade from 2GB of ram to 4GB so that I can increase my innodb_buffer from the default 16MB to 2GB. My innodb table size is 2GB. My question is, given that ram usage is 25% does it make sense to upgrade ram? Queries are hanging sometimes, so I'm thinking that a bigger innodb_buffer could decrease load on the database, just not sure if I really need to upgrade my ram first.

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• Grub2 menu after crash

  - by poopa

  Hi, I have ubuntu 9.10 desktop VMware VM with the default grub2 installed. There is some weird problem with this VM. When you clone this vm and have a customization script run, the cloned machine crashes at first boot (VMware does not officially suport customizaing Ubuntu newer than 8.04). After the creash the Grub boot menu is displayed but there is not time out. I checked /boot/grub/grub.cfg and it does indeed show a timeout of 10 seconds. Nothing happens till I select an option with the keyboard. The second time the Ubuntu loads, it does not crash. My question is, how do I make the grub menu timeout in that case? Thanks.

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• Good quality Secure Software Development Training [closed]

  - by Patrick

  Just had my annual appraisal and found out my company is willing to pay for training and exams etc! Woohoo (they kept that one quiet). I'm interested in doing a course on secure development techniques. Has anyone got any suggestions for good quality distance learning courses in secure development (I could probably get a couple of days off to attend a conference/ course if required)? We're mostly an MS .Net house but I have no particular allegiance to MS or any other programming language (though, obviously, C++ is the best language in the world). I have 12 years development experience working in (what are now) PCI:DSS environments, including designing and developing a key management system and I have some knowledge of basic attacks (XSS, injection etc). I would prefer a hard course I struggle with to a basic course I learn 3 things from (but hopefully get something right at my level). A quick google found these two course which look good: http://www.sans.org/course/secure-coding-net-developing-defensible-applications https://www.isc2.org/csslpedu/default.aspx I don't really know how to choose between them, and finding other courses isn't going to make that job any easier, so I thought I'd ask those who know. EDIT : Hmm, care to share the reason for your down vote, will help me learn how to use the site better...

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• Masquerade traffic from certain source IP to VPN connection

  - by Shuo Ran

  Network Setup: 10.0.0.1 Router: to internet 10.0.0.70 Server: Ubuntu based server,default gateway is 10.0.0.1 10.0.0.51 PC I created a PPTP connection(interface: ppp0) on Server to a machine on the internet, what I want to do is route all the traffic from certain IP address(10.0.0.51) through the PPTP connection and then to the internet. What I did are: Set the gateway on PC(10.0.0.51) as 10.0.0.70 Enabled ipv4 forward on 10,0,0,70 Add the masquerade rule to iptable: iptables -t nat -A POSTROUTING -o ppp0 -s 10.0.0.51 -j MASQUERADE After that, it seems none of the traffic from 10.0.0.51 be redirected to ppp0, instead these traffic are still going through 10.0.0.1 directly. Any thoughts on it?

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• Installed geany has no options

  - by arundex

  I'm new to geany IDE. I installed geany from ubuntu software centre, and the window has no options other than opening a new file. I can't file any preference, tools option too for configuring. I heard it is a full fledged IDE. Also, from the screenshots available from the software center, it seems my Geany installation is missing almost everything. I'm not able to post the screenshots, but my interface just has 3 buttons. create a new file, open an existing file and a quit button. Everything else is inactive. I accidentally closed the sidepane, and I can't find any options to bring back that too. EDIT What am I missing in my Geany installation? PS: I tried installing from source from geany website. But, it posted some error saying GTK files not found. But, I removed geany from software centre and reinstalled several times. It installed Geany without problems, but with afore mentioned problems, that is I have nothing in my interface. Also, even after reinstalling, somehow Geany remembers to hide the sidepane by default, which I'm not able to see at all. I also added Geany ppa repository manually for latest fixes, but still when I reinstall from software centre I get a plain blank Geany interface. Thanks.

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• Strings are UTF-16&hellip;. There is an error in XML document (1, 1).

  - by Shawn Cicoria

  I had a situation today where an xml document had a directive indicating it was utf-8.  So, the code in question was reading in the “string” of that xml then attempting to de-serialize it using an Xsd generated type. What you end up with is an exception indicating that there’s an error in the Xml document at (1,1) or something to that effect. The fix is, run it through a memory stream – which reads the string, but at utf8 bytes – if you have things that fall outside of 8 bit chars, you’ll get an exception.   //Need to read it to bytes, to undo the fact that strings are UTF-16 all the time. //We want it to handle it as UTF8. byte[] bytes = Encoding.UTF8.GetBytes(_myXmlString); TargetType myInstance = null; using (MemoryStream memStream = new MemoryStream(bytes)) { XmlSerializer tokenSerializer = new XmlSerializer(typeof(TargetType)); myInstance = (TargetType)tokenSerializer.Deserialize(memStream); }   Writing is similar – also, adding the default namespace prevents the additional xmlns additions that aren’t necessary:   XmlWriterSettings settings = new XmlWriterSettings() { Encoding = Encoding.UTF8, Indent = true, NewLineOnAttributes = true, }; XmlSerializerNamespaces xmlnsEmpty = new XmlSerializerNamespaces(); xmlnsEmpty.Add("", "http://www.wow.thisworks.com/2010/05"); MemoryStream memStr = new MemoryStream(); using (XmlWriter writer = XmlTextWriter.Create(memStr, settings)) { XmlSerializer tokenSerializer = new XmlSerializer(typeof(TargetType)); tokenSerializer.Serialize(writer, theInstance, xmlnsEmpty); }

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• Boot custom linux up by pressing Lenovo OKR button?

  - by Semmu

  I have a Lenovo Y510p laptop and I'm a Linux user, use Windows only for gaming. The device had no OS when I bought it and I also installed an SSD besides the 1TB hard drive. I would like to "hack" the One-Key-Recovery button, because I have no interest in its default behaviour (I don't need Windows recovery), but if I could boot up a hidden, fail-safe Linux with it, that would be great. How could I achieve it? I tried to search what the button does, but I only found some installers for Windows that could magically create a partition for the recovery. I would like to override this behaviour completely to boot up something else.

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• Does uwsgi workers share a common memory ? [ With Nginx ]

  - by Yugal Jindle

  I have configured my Nginx with Django uwsgi. When the django server starts, it reads a 5MB file from the hard-disk. Now, Without Nginx with Django default server python manage.py runserver = Runs immediately and starts serving pages. Problem: With Nginx as the server It takes very long time and several HTTP 504 before it start serving pages. So, How does uwsgi workers work with Nginx ? I have: 4 Workers 512 Threads each So, is the 5MB file getting read 512 * 4 times ? Is there a possible work around for this in Nginx / Uwsgi ?

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• Hyper-V with a single host NIC

  - by Cylindric

  I'm trying to create a simple Hyper-V test machine, and am having more problems than expected with the basic networking. All other hypervisors I've used (vmware server, vmware player, virtualbox) allow me to use the default single NIC in my machine, and then create guests with "bridged" mode so they appear like a normal machine on the network. With the Hyper-V server, when I create a Virtual Switch and set it to "external", I lose all network access from the host. The solutions I've seen online seem to rely on complex configurations requiring multiple vSwitches and RRAS on the host to get it going. Is it really that complex to get a simple, single-NIC Hyper-V server going, in such a way that I can still use the host? The host is Windows 8.

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• Virtual Hosts Not Working (12.10)

  - by lolajl

  I'm trying to get virtual hosts up and running on my Ubuntu laptop that has 12.10 installed. I'm running Apache2, and I enabled the virtual hosting module. When I go to 12.0.0.1, I'm able to get the default page. When I go to example.local, I just get the search engine results, instead of the "hey, you're seeing this" page I set up in that directory (/var/www/example.local). I even made sure I have only one "NameVirtualHost *:80" variable active. Checking error.log, nothing obvious seems to jump out as being amiss. here's what I have in the respective files: example.local ServerName example.local ServerAdmin webmaster@localhost DocumentRoot /var/www/example.local <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/example.local> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined ports.conf NameVirtualHost *:80 Listen 80 hosts 127.0.0.1 localhost 127.0.1.1 KitaiGorod 127.0.0.1 example.local ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters

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• RHEL 6 x64: running 32 bit applications

  - by user54614

  We develop an application which currently works in 32 bit mode only. It worked fine in RHEL 5 but failed to work in RHEL 6. The reason is RHEL 6 by default is installed with 64 bit libraries only. Moreover, we didn't find a way to choose installation of 32bit runtime environment during or after system installation. Of course, we did find a way to install three rpm packages with 32 bit libraries required for our application to work. But it looks like unpleasant for our customers (we have to install three rpms from the DVD in the command line). So the question is: Is there a convenient way for RHEL 6 customers to install 32 bit libraries it their RHEL 6 system? Say, any user-friendly item in menu or a special command that install the same set of 32 bit system libraries that existed in RHEL 5? What are best practicies in such cases?

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• Why does FIND on Windows 7 give an "Access Denied" error?

  - by rann

  Hi All, I have an administrator account on a Windows 7 x64 machine. It is not THE administrator account, the account is simply a member of the administrators group. The install is default. When the user opens a command prompt it ends up in the users' %HOMEPATH% directory where you'll find various directories like the Documents folder. If the user uses the following (windows) FIND command, an "Access Denied" error occurs: FIND /I "My String" C:\Users\Rann\Documents Access denied - C:\USERS\RANN\DOCUMENTS Using runas or right-clicking on the command prompt to run it as an administrator does not change this behaviour; an administrator-level cmd.exe still gives me the same error. Changing the path to any other directory gives the same error. My question is thus: How is one supposed to use the FIND (and possibly other) commands? What rights are needed?

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• accessing external mysql server through "ssh tunnel" - any drawbacks?

  - by Max

  In an upcoming project I have a two server setup: one is the application server and another, already existing runs the mysql server with databases I need to access. I contacted the server admin of the mysql server and the only way I can access the remote mysql databases is via "SSH tunnel". I have never done this before and never heard of it so far, so my question, are there any drawbacks, e. g. performance wise? Isnt it rather slow compared to directly accessing the mysql server on its default port?

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• How do I make two different Google Chrome profiles?

  - by ldigas

  I have a laptop which I use for (the major part) of my work and private life, and would like to set those two apart starting with Google Chrome. So far, my Google Chrome contains my work bookmarks, logins/passwords and everything else ... which I use for work, which I use privately, which I use in my spare time (funny Youtube videos, what else :) Is it possible to define multiple Google Chrome profiles, let's say work and free-time, so one can quickly switch between them, where bookmarks, logins and so on, from one would be invisible in the other, and vice versa? Also, is it possible to put them into some directory different from the default, so one can easily backup them, when needed? If it is, could anyone describe it in simple terms, or his experiences if she/he has a better way of going about this?

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• All program links (icons, menu items) try to use Adobe Reader to run them

  - by Rob

  My mother was opening Internet Mail to check her mail on her new Windows 7 PC and a pop-up window asked her if she wanted to use Adobe Reader as the default program instead. She must have clicked yes. Now all of the Start Menu and Desktop icons have the adobe logo and appear to try and use adobe to execute the programs. Has anyone encountered this and were they able to fix it? She tried to associate another program and ended up having the Internet Explorer icon and program replacing the Adobe icons. This woman can tear up a steel ball with a rubber mallet.

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• The letter 'W' gets rendered oddly

  - by Jeff E

  It seems that with this particular font (it's one of the Ubuntu fonts; I can't tell which one exactly because Chrome's debugger doesn't tell me which font-family won the CSS battle) the letter 'W' (both cases), at the default zoom level and typically with smaller sizes, will render very oddly: (open the image in a new tab) The right-hand side of the letter is totally wrong. Changing the zoom levels will mitigate (but not eliminate) the issue. Does anyone know how to fix this? It doesn't happen on Firefox or IE so I assume it's not an issue with the font itself.

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• Powering off sends me to "Launch Windows Repair" automatically instead! What do I do?

  - by Jason

  With Windows 2008 R2 Server, I noticed that if I remotely reboot the machine (because it is hung or I think it is hung), the server, when it restarts, defaults to "Launch Windows Repair" (or something similar) rather than "Start Windows Normally". To change it, I have to trek down to the server room and change the boot up otherwise it will go into an endless loop (because I don't have the setup media and DVD-ROM installed). This seems to be new with 2008 R2 because I have not seen it elsewhere. What do I do? How can I remove this or change the default?

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• Possible to create "fake" forum (for prototyping) using html, javascript, jquery, css? [closed]

  - by htmlNewbie

  I am trying to figure out if it might be possible to create a small forum without any use of a database and php coding. I have created a small (local and will only be local) webpage with a couple of menus. I have a forum button which will take me to another .html location. Here i would like to create something that looks like a forum and which you somewhat could interact with like a forum, without any database or PHP. I would probably want/need a form with a heading and text input. When i have given some input, i want it to be displayed as a thread, probably on top of the other threads (which will have to be created beforehand). When I refresh the forum will obviously be set to default, without saving what i just entered since I'm not using a database to save any data. So the new posts will not be saved, just displayed, neatly, when submitted. I'm doing this webpage with forum just as a prototype, and that is why it doesn't have to work as a professional forum. :) Would be very thankful for some tips, tricks, ideas or links to helpful threads.

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• Does Asus F8SV supports 1920*1080 resolution through DVI output? [closed]

  - by Col

  Devices: Asus F8Sv Laptop (Windows 7 ultimate, GeForce 8600m GT, display driver is 301.42, detected and downloaded from nvidia.com, VGA and DVI output interface) Gateway 23 inches LCD monitor (VGA, DVI-D with HDCP, and HDMI input) 18 pins DVI cable, VGA cable, both new. Problems: When connect laptop to monitor by VGA, resolution is automatically adapted to 1920*1080; but when using DVI connection, resolution on monitor is fixed to 1024*768, which is lower than my laptop default 1280*800. The maximum resolution in windows control panel is only 1024*768, while the Nvidia control panel provides options 1920*1080p and 1920*1080i, but clicking apply button does not work, the resolution just can not change. Possibly reason I guess: GeForce 8600m GT does not support 1920*1080 resolution through DVI outputs. Can anyone confirm it or give the real reason? edit: Problem solved by buying a HDMI to DVI-D adapter. Using this adapter and a HDMI cable, I can now enjoy 1080p movie.

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• non-mapped virtual memory & total number of connections

  - by tszming

  We have two MongoDB data nodes (replica set) - Primary & Secondary. I noticed that the non-mapped virtual memory is relatively high and wondering if they are hurting our MongoDB performance (The server usually peaked at around 6-7K queries per sec). In MMS, it was stated: "The most common case of usage of a high amount of memory for non-mapped is that there are very many connections to the database." So we checked the memory usage with db.serverStatus().mem in our Secondary: { "bits" : 64, "resident" : 6846, "virtual" : 416797, "supported" : true, "mapped" : 205549, "mappedWithJournal" : 411098, "note" : "virtual minus mapped is large. could indicate a memory leak" } Note: We are using 2.0.4 and now the default stack size should be 1MB per connection. The current number of connections is around 1.1K, but the non-mapped virtual memory (virtual-mappedWithJournal) is around 5699 MB. The trend is quite stable so I can't say there is a leak here, but where is the memory gone? Any idea?

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