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• Windows 7 32bit resolution is limited for HDTV monitor

  - by Nick

  I have a small Magnavox HDTV that i am using to test a Frankenstein PC build. The goal is to eventually connect to my old rear projection HDTV which supports 1080i via component input. The goal is also not to buy anymore stuff, otherwise i will just buy a smartTV and be done. I have a ATI Radeon HD 3450 with component out adapter YPrPb. The monitor supports 1080p, but over analog component out, should only go upto 1080i. I have had this working with another setup. On this particular setup, i have Windows 7 32bit, with the latest 12.8 catalyst drivers installed. the windows splash screen starts in 480p, then switches to 480i when the login prompt is shown. When try to change the resolution, 720x480 is the maximum value of the slider. I have also tried the "list all modes" and that also maxes out at 720x480. There are two options for this monitor in the devices seciton, Generic PNP monitor, and Generic non-PNP monitor. Neither setting fixes this. Any ideas on how to get 1080i?

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• How to change password on RAR archive w/o modifying arch. files attributes (modified/created)?

  - by Larry78

  How do I change the password of an .RAR archive, without changing the date/time attributes of the files in the archive? Unfortunately you can't directly change the password of the archive with WinRAR, you have to extract the files, and then make a new archive with the new password. So the created/modified attributes of the files in the archive get changed. I know you can manually change the attributes of a file with available utilities - but there are hundreds of files in the archive, each with unique attributes, so it would take a very long time to "fix" each file before re-archiving it. I'm using WinRAR 3.51, the last free version. Windows XP Pro SP3. Update: I don't care if the output is a .RAR file or a ZIP file IZArc4.1 will convert the RAR to a ZIP, and it keeps the dates. The problem is it compresses the file - there isn't a "store" option, and setting the default to store in the main configuration doesn't effect conversions. The RAR contains uncompressed files. None of these other archiving programs will even do a conversion. A couple claim to, or try to, but the errors returned indicate a very lousy application. So far I've tried PeaZip, 7-Zip, FilZip, TugZip, SimplyZipSE, QuickZip, and WinShrink (from downloads.cnet.com). WinRAR gives the error "skipping encryped archive" when I try the conversion. It asks for the password first, and I know it's right, as I opened the archive, and I can read/view all the files in it. It works on non-encrypted files.

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• Simulate a DFS share for a user not on domain with a folder in path

  - by user223655

  I have a consultant whose computer is not on the domain and needs to access various network resources. Unfortunately while adding a computer to the domain is a difficult bureaucratic process (and would disallow much of his development software from even running given the domain restrictions), we can allow him to have credentials to access network resources. As such, he accesses various network resources via NET USE etc. without using DFS. There is one piece of software which requires him to have the same hardcoded path as other domain users but that path is a DFS path which he can't map (i.e., the software checks the path at runtime and will only run if it matches the registered path and will reject it in the context of using a DFS versus conventional machine path) I was wondering if there's some method to simulate the DFS path without actually using DFS. e.g., the path the software needs to see is "\ABC\DFS\software\app.exe" whereas the non DFS path is "\DEF\Software\app.exe" while I could make his hosts file point DEF to ABC, I'm not sure if I can somehow make it point there with the DFS "folder" as well are there any methods for this short of making changes to the AD to allow him to use DFS or add him to the domain (both of which are politically/technically challenging sadly)? Thanks guys

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• How to avoid en.voyages-sncf.com redirecting to uk.voyages-sncf.com?

  - by Mark Smith

  OK, so en.voyages-sncf.com is French Railways' English language website with full functionality for train booking in France - it sells iDTGV, offers seating options etc. uk.voyages-sncf.com is their UK subsidiary, with reduced functionality, no seat options, no iDTGV etc. Previously, I have been able to select 'Other countries (EUR)' top right and go from the uk version to the en version, or just type in the direct url 'en.voyages-sncf.com and go there. Now, they seem to have implemented an automatic redirect so whenever I enter 'en.voyages-sncf.com' on my UK-based PC or indeed try to select 'Other countries (EUR)' it automatically bumps me to uk.voyages-sncf.com, which I don't want. I can't get onto en.voyages-sncf at all. So, short of using a heavyweight solution like using a non-UK proxy server or downloading the TOR browser, is there any simple solution? Like telling my browser to go to en.voyages-sncf, go directly to en.voyages-sncf and no other site, do not pass go, do not collect £200, do not go anywhere else, ignore all redirects and do what you're told by ME, not by those Machiavellian so-and-sos?

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• Apache Virtualhost entry with Windows hostname

  - by gshauger

  I have a Windows Domain Controller and we use it for DNS for our internal network. I have an Ubuntu box with an IP address of 172.16.34.149. Within the Windows DNS I created the forward and reverse lookup entries for the name Endymion. Naturally when ever I FTP/SSH/HTTP/etc to the hostname Endymion it resolves correctly to my Ubuntu box. I wanted to do some web development on this box for an existing site. There were problems when I placed the website in a subfolder of /var/www/. Let's just say it was in folder /var/www/projectx/. The issue involved the incorrect resolution of non-relative urls. So I figure I could create a new DNS entry for the hostname projectx. Sure enough when I FTP/SSH/HTTP/etc to the hostname projectx it takes me to the same ubuntu box as the hostname Endymion...this is what I would expect. I now have two hostnames for the same box. I then create a Virtualhost entry in httpd.conf that looks like the following: <VirtualHost *:80> DocumentRoot /var/www/projectx ServerName projectx ServerAlias projectx </VirtualHost> Sure enough when I go to a browser and type in http://projectx/ it takes me to the correct subfolder. Everything works!!! Not so fast. I then go to http://endymion/ and instead of taking me to /var/www/ it takes me to /var/www/projectx/ Clearly I'm missing something. Help please! ;)

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• Does Google sometimes ignore "special" characters, possibly depending on your location or font type settings? [closed]

  - by RLH

  TLDR Google tends to ignore special characters in my search strings. Is there anything that I can do about it and is it, possibly, happening because Google makes certain assumptions based off of my default text-encoding settings and my location? I just posted this question over at StackOverflow. I had found a C preprocessor that I'd never seen before. As I should have done, I Googled it and tried to find out further information. I attempted various search terms which were all variations of "C Operator ##" (some times with and some times without the double-quotes.) Google didn't bring back anything of use so I posted my question on SO. As you can see from the comments, someone mentioned a search string (ironically one which I did try to search) and stated that I could have even hit the "I'm feeling lucky" button and have gotten my answer. The problem is I did search that, and the results that I received were far more basic and even after following the top results and searching the resulting pages, I could find nothing referencing the string "##". I'm not posting this question to complain but it does provide an empirical example of something I've seen before that really bugs me-- Google often ignores special characters in my search strings and the results are often useless. As a developer I often need to search for string values containing non-alphanumeric characters. Some characters (like the underscore or hyphen) can be used without trouble. However, other characters (such as the ampersand, carat, tilde and pound sign) are often ignored in my query strings. Is there a way to prevent this from happening so that I can get meaningful results from Google? NOTE I stay logged into Google and I live in the US. I wonder if Google detects some form of text-encoding setting or derives my results based off of certain, localized text-based assumptions. Regardless, I would like to for Google to search for what I give it. Is there anything that I can do to improve my results?

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• Sound doesn't work anymore after replacing RAM

  - by thejh

  Hello, today, I replaced one old RAM module with two newer, bigger ones, but now, the sound doesn't seem to work anymore. Already ran alsaconf and it didn't help. Output of lspci for the audio device: 00:07.0 Audio device: nVidia Corporation MCP67 High Definition Audio (rev a1) Subsystem: Giga-byte Technology Device a002 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 (500ns min, 1250ns max) Interrupt: pin A routed to IRQ 21 Region 0: Memory at f5100000 (32-bit, non-prefetchable) [size=16K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/0 Enable- Address: 0000000000000000 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+ Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel The audio device is onboard and has six configurable outputs, two or so are also capable of being an input (if I remember it correctly), but I don't know how to control it under linux. Does somebody know how/whether replacing the RAM could be related to my problem and/or how to fix it?

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• Windows 7 not booting after failed SRT (SSD caching) install

  - by david

  This is a fairly new computer, only about a month old. i7 2700k, z68 motherboard, with a 1.5tb WD black HD, and a 128gb crucial M4 ssd. I followed the instructions for setting up ssd caching, the SATA controller was set to RAID, I installed the intel software and enabled acceleration and it said everything went fine. But when I went to reboot, I received the lovely "Reboot and Select proper Boot device" error message. I checked the bios, and it was booting from the correct HD (I tried the only other option anyway just in case, it was the ~50 odd gb of unformatted space left on the SSD) AFter that I entered the raid until (ctrl-i at boot) and removed the acceleration and deleted the raid array (because it was being used as a cache this was non destructive) Still no boot. So I reinstalled win7 directly on the SSD, booted, and checked the HDD to make sure it hadn't been wiped. It hadn't, all the files were still there, including all the windows stuff. I backed up my data to an external drive just in case, but I'd really like to get this install booting again. I trawled the webs a bit, and have tried entering recovery mode and using the bootrec.exe and bootsect.exe to fix it, but to be honest I'm not sure what I'm doing with those. My question is basically: How do I make my harddrive bootable again?

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• Nginx Config - I can't access WordPress admin area

  - by WebDevDude

  I am a complete noob when it comes to Nginx, but I'm trying to make the switch over for my WordPress site. Everything works, even the permalink, but I can't access my WordPress admin directory (I get a 403 error). I have my WordPress install in a subfolder, so that complicates things a bit for me. Here is my Nginx config file: server { server_name mydomain.com; access_log /srv/www/mydomain.com/logs/access.log; error_log /srv/www/mydomain.com/logs/error.log; root /srv/www/mydomain.com/public_html; location / { index index.php; # This is cool because no php is touched for static content. # include the "?$args" part so non-default permalinks doesn't break when using query string try_files $uri $uri/ /index.php?$args; } location /myWordpressDir { try_files $uri $uri/ /myWordpressDir/index.php?$args; } location ~ \.php$ { include /etc/nginx/fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /srv/www/mydomain.com/public_html$fastcgi_script_name; fastcgi_split_path_info ^(/myWordpressDir)(/.*)$; } location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ { access_log off; log_not_found off; expires max; } }

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• No access to Windows 2003 admin shares

  - by ARomo

  This is the environment: Several Win 2003 SP 2 servers and several Win XP SP2 & SP3 clients. All in the same LAN. Firewall is disabled everywhere. No recent Windows updates or configuration changes. This is the problem: Since last Thursday, I log on to any other server or workstation as any regular (non-admin) user and I fail to be able to open ADMIN SHARES ONLY (namely \\server1\c$, \\server1\e$ and \\server1\admin$). The error message is: "\server1\c$ is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again." I can, however, open the same shares if I use FQDN or IP address: \\server1.domain.local\c$ \\172.0.0.1\c$ Other shares do not have this issue and I can open them without any issue. Any ideas or suggestion would be truly appreciated. Thank you in advance.

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• Fixing Windows install by connecting its hard drive via USB to a different laptop

  - by Jason

  I tried to upgrade a laptop to SP3, which broke it. I later found out SP3 doesn't work on that 2002 laptop. I can't uninstall SP3, or fix SP2, because the hard drive is now not detected during setup (I've read that's the problem you get). I put the hard drive in a USB drive case and plugged it into my other laptop, and I can read (& write to) the disk okay. (The hard drive won't fit in my other laptop, so I'm using USB.) I need to get that disk back to SP2, or fix whatever files got screwed up causing the disk to not be recognized. I don't want to do a re-install as there are 80GB of files on it I need, and they won't fit on the HD of my other laptop, and also because I no longer have some of the install CDs for software on it. What do I need to do to fix that drive from my other laptop? (I don't want my working laptop (XP SP3) to get screwed with by putting an SP2 disk in the CD drive, or the non-o/s data on the other hard drive screwed with.)

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• Fixing Windows install by connecting it's hard drive via USB to a different laptop

  - by Jason

  I tried to upgrade a laptop to SP3, which broke it. I later found out SP3 doesn't work on that 2002 laptop. I can't uninstall SP3, or fix SP2, because the hard drive is now not detected during setup (I've read that's the problem you get). I put the hard drive in a USB drive case and plugged it into my other laptop, and I can read (& write to) the disk okay. (The hard drive won't fit in my other laptop, so I'm using USB.) I need to get that disk back to SP2, or fix whatever files got screwed up causing the disk to not be recognized. I don't want to do a re-install as there are 80GB of files on it I need, and they won't fit on the HD of my other laptop, and also because I no longer have some of the install CDs for software on it. What do I need to do to fix that drive from my other laptop? (I don't want my working laptop (XP SP3) to get screwed with by putting an SP2 disk in the CD drive, or the non-o/s data on the other hard drive screwed with.)

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• pam_ldap.so before pam_unix.so? Is it ever possible?

  - by user1075993

  we have a couple of servers with PAM+LDAP. The configuration is standard (see http://arthurdejong.org/nss-pam-ldapd/setup or http://wiki.debian.org/LDAP/PAM). For example, /etc/pam.d/common-auth contains: auth sufficient pam_unix.so nullok_secure auth requisite pam_succeed_if.so uid >= 1000 quiet auth sufficient pam_ldap.so use_first_pass auth requiered pam_deny.so And, of course, it works for both ldap and local users. But every login goes first to pam_unix.so, fails, and only then tries pam_ldap.so successfully. As a result, we have a well-known failure message for every single ldap user login: pam_unix(<some_service>:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=<some_host> user=<some_user> I have up to 60000 of such log messages per day and I want to change the configuration so, that PAM will try ldap authentication first, and only if it fails - try pam_unix.so (I think it can improve the i/o performance of the server). But if I change common-auth to the following: auth sufficient pam_ldap.so use_first_pass auth sufficient pam_unix.so nullok_secure auth requiered pam_deny.so Then I simply can't login anymore with local (non-ldap) user (e.g., via ssh). Does somebody knows the right configuration? Why Debian and nss-pam-ldapd have pam_unix.so at first by default? Is there really no way to change it? Thank you in advance. P.S. I don't want to disable logs, but want to set ldap authentication on the first place.

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• Truecrypt files corrupted after moving PC into another case

  - by Dygerati

  I recently bought a new PC case and transferred all of my PC hardware into it. The only hardware modification was the addition of two identical ram modules. The entire process went smoothly, and everything worked and booted as before. The only side-effect I found when accessing one my of file-based hidden truecrypt volumes shortly there after. Some of the files in the volume - NOT all - seemed to be entirely corrupted. The directory and file names are garbled characters, but a few of the directories in the same volume appear and function normally. Also, all files in the non-hidden tc volume were still intact. Is this not weird? The only other real change I could think of would be that the hard drives were connected to different SATA ports on the mobo. I really don't know how the truecrypt encryption works well enough to know what could cause this...and the fact that not all the files were corrupted makes it more bizarre still. So, first off (and I'm not too hopeful on this point), would it be possible to restore these files? I had a backup of most, but not all of the files involved. Other than that I'm just curious how this happened and how I can prevent it next time. Thanks!

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• if I define `my_domain`, postfix does not expand mail aliases

  - by Norky

  I have postfix v2.6.6 running on CentOS 6.3, hostname priest.ocsl.local (private, internal domain) with a number of aliases supportpeople: [email protected], [email protected], [email protected] requests: "|/opt/rt4/bin/rt-mailgate --queue 'general' --action correspond --url http://localhost/", supportpeople help: "|/opt/rt4/bin/rt-mailgate --queue 'help' --action correspond --url http://localhost/", supportpeople If I leave postfix with its default configuration, then the aliases are resolved correctly/as I expect, so that incoming mail to, say, [email protected] will be piped through the rt-mailgate mailgate command and also be delivered (via the mail server for ocsl.co.uk (a publicly resolvable domain)) to [email protected], user2, etc. The problem comes when I define mydomain = ocsl.co.uk in /etc/postfix/main.cf (with the intention that outgoing mail come from, for example, [email protected]). When I do this, postfix continues to run the piped command correctly, however it no longer expands the nested aliases as I expect: instead of trying to deliver to [email protected], user2 etc, it tries to send to [email protected], which does not exist on the upstream mail server and generates NDRs. postconf -n for the non-working configuration follows (the working configuration differs only by the "mydomain" line. alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix debug_peer_level = 2 html_directory = no inet_interfaces = all inet_protocols = all mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost mydomain = ocsl.co.uk newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES sample_directory = /usr/share/doc/postfix-2.6.6/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop unknown_local_recipient_reject_code = 550 We did have things working as we expected/wanted previously on an older system running Sendmail.

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• Allow connections to only a specific URL via HTTPS with iptables, -m recent (potentially) and -m string (definitely)

  - by The Consumer

  Hello, Let's say that, for example, I want to allow connections only to subdomain.mydomain.com; I have it partially working, but it sometimes gets in a freaky loop with the client key exchange once the Client Hello is allowed. Ah, to make it even more annoying, it's a self-signed certificate, and the page requires authentication, and HTTPS is listening on a non-standard port... So the TCP/SSL Handshake experience will differ greatly for many users. Is -m recent the right route? Is there a more graceful method to allow the complete TCP stream once the string is seen? Here's what I have so far: #iptables -N SSL #iptables -A INPUT -i eth0 -p tcp -j SSL #iptables -A SSL -m recent --set -p tcp --syn --dport 400 #iptables -A SSL -m recent --update -p tcp --tcp-flags PSH,SYN,ACK SYN,ACK --sport 400 #iptables -A SSL -m recent --update -p tcp --tcp-flags PSH,SYN,ACK ACK --dport 400 #iptables -A SSL -m recent --remove -p tcp --tcp-flags PSH,ACK PSH,ACK --dport 400 -m string --algo kmp --string "subdomain.mydomain.com" -j ACCEPT Yes, I have tried to get around this with nginx tweaks, but I can't get nginx to return a 444 or abrupt disconnect before the client hello, if you can think of a way to achieve this instead, I'm all ears, err, eyes. (As suggested by a user, bringing this inquiry over from http://stackoverflow.com/questions/4628157/allow-connections-to-only-a-specific-url-via-https-with-iptables-m-recent-pote)

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• Our clients site is redirecting to a pill scammy site [closed]

  - by Alex Demchak

  Possible Duplicate: My server's been hacked EMERGENCY We've usually host our clients site, but we aren't hosting this one. The website itself (weddle-funeral.com) works just fine. if you load google and search for weddle funeral stayton oregon - and click that link, the site links to a scammy pill site. I went through the site and there were some php files in the wordpress plugins that got quarantined by my antivirus. I removed ALL non essential files, and uploaded fresh versions of all the plugins, but it's STILL redirecting from google. I tried logging in to the cpanel (on a virtual private server), and the cpanel flashed a red warning screen The site's security certificate is not trusted! You attempted to reach XXXXX.com, but the server presented a certificate issued by an entity that is not trusted by your computer's operating system. This may mean that the server has generated its own security credentials, which Google Chrome cannot rely on for identity information, or an attacker may be trying to intercept your communications. You should not proceed, especially if you have never seen this warning before for this site. (Keep in mind, that's for the HOSTING accounts CPanel) Is there something in the SERVER probably that's causing the redirect? EDIT: .htaccess file contents # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> # END WordPress

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• How to automate downloading files?

  - by Damon

  I got a book which had a pass to access digital versions of hi-res scans of much of the artwork in the book. Amazing! Unfortunately the presentation of all the these are 177 pages of 8 images each with links to zip files of jpgs. It is extremely tedious to browse, and I would love to be able to get all the files at once rather than sitting and clicking through each one separately. archive_bookname/index.1.htm - archive_bookname/index.177.htm each of those pages have 8 links each to the files linking to files such as <snip>/downloads/_Q6Q9265.jpg.zip, <snip>/downloads/_Q6Q7069.jpg.zip, <snip>/downloads/_Q6Q5354.jpg.zip. that don't quite go in order. I cannot get a directory listing of the parent /downloads/ folder. Also, the file is behind a login-wall, so doing a non-browser tool, might be difficult without knowing how to recreate the session info. I've looked into wget a little but I'm pretty confused and have no idea if it will help me with this. Any advice on how to tackle this? Can wget do this for me automatically?

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• How to search file for matching whole lines?

  - by WilliamKF

  I have a command which sends to stdout a series of numbers, each on a new line. I need to determine whether a particular number exists in the list. The match needs to be exact, not a subset. For example, a simple way to approach this that does not work would be to do: /run/command/outputing/numbers | grep -c <numberToSearch> My this gives a false positive on the following list when searching for '456': 1234567 98765 23 1771 If the count is non-zero, a match was found or if it was zero, the number is not in the list. The issue with this is that the numberToSearch could match a subsequence of numbers on a line, instead I only want hits on the whole line. I looked at the man page for grep and did not see any way to only match whole lines. Is there a way to do this, or would I be better off using awk or sed or some other tool instead? I need a binary answer as to whether the number being search for is present or not.

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• Issue with a secure login - Why am I being redirected to the insecure login?

  - by mstrmrvls

  Im having some issues getting a website working at my place of work. The issue was rasised when a "double login" occurred from the secure login site. The second login was actually being prompted by the HTTP domain and not HTTPS. In essence the situation is like this: The user navigates to https://mysite.com/something The login prompt pops up Enter username and password The user is presented with ANOTHER login prompt (IE will say its insecure, and the address bar reflects that) If the user puts in their password the insecure one, they will login to the insecure site. if they hit cancel it will present them with a 401 page Navigating back to https://somesite.com/something will by pass the login prompt and log them in to the secure site automatically (cookie maybe) I'm a bit confused to why the user isnt being logged in properly the first time (redirected to non-ssl) but any consecutive login will be okay? I've been trying to use fiddler to see what is happening after the user puts in their password the first time and trying to get fiddler to automatically login to the site (with no luck) I believe the website in question is using Basic Digest authentication. Thanks for any help

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• Throughput and why do ISPs sell too much bandwidth?

  - by jonescb

  I hope the question made sense how I worded it. :) I've been wondering, maximum theoretical bandwidth is measured as RWIN/RTT (Window size / round trip time) Source 1 and Souce 2 So if a major city only 100 miles away gives me a ping of 50ms, and I have the default 64kb TCP window size then my maximum throughput will be 12.5Mb/s. Everything further away would give me a higher ping and therefore a lower throughput. Is there any reason to buy something like FiOS with a 50Mb/s or greater connection? Will you ever be able to reach that kind of speed? I know you can increase the TCP window size to increase throughput, but it has to be at both ends which is a deal breaker because you can't control the server. I'm assuming other network protocols like UDP aren't quite as affected by latency as TCP is, but how much of overall network traffic does non-TCP make up vs TCP. Am I just misguided about how throughput works? But if the above is correct, then why should a consumer like me buy way more bandwidth than can be realistically used. Maybe the only reason is for downloading multiple things at once, or one thing from multiple servers/peers?

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• Scaling a node.js application, nginx as a base server, but varnish or redis for caching?

  - by AntelopeSalad

  I'm not close to being well versed in using nginx or varnish but this is my setup at the moment. I have a node.js server running which is serving either json, html templates, or socket.io events. Then I have nginx running in front of node which is serving all static content (css, js, etc.). At this point I would like to cache both static content and dynamic content to memory. It's to my understanding that varnish can cache static content quite well and it wouldn't require touching my application code. I also think it's capable of caching dynamic content too but there cannot be any cookie headers? I do use redis at the moment for holding session data and planned to use it for other things in the future like keeping track of non-crucial but fun stats. I just have no idea how I should handle caching everything on the site. I think it comes down to these options but there might be more: Throw varnish in front of nginx and let varnish cache static pages, no app code changes. Redis would cache dynamic db calls which would require modifying my app code. Ignore using varnish completely and let redis handle caching everything, then use one of the nginx-redis modules. I'm not sure if this would require a lot of app code changes (for the static files). I'm not having any luck finding benchmarks that compare nginx+varnish vs nginx+redis and I'm too inexperienced to bench it myself (high chances of my configs being awful). I'm basically looking for the solution that would be the most efficient in terms of req/sec and scalable in the future (throw new hardware at the problem + maybe adjust some values in a config = new servers up and running semi-painlessly).

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• Unable to mount iso as dvd drive in VMware Fusion 6

  - by John O

  I have a newer iMac without an optical drive and some DVDs that I needed to run software off of. This software will have you juggle discs to read data off of them, and the data can't simply be copied to the machine's drive. I used a windows machine to make ISOs of these DVDs. And the first disc, the installer, it will mount in VMware and let you install the software. It then asks for the other discs, and these won't mount as ISOs. If I mount them as drive images, they'll show up on the iMac's and I have access to all the files. But if I try to mount them as the dvd drive through Fusion, nothing happens. For that matter, I'm unable to attempt it a second time, as Fusion believes that the there is already an iso mounted as the dvd, while nothing has happened as far as the guest OS is concerned. drutil eject will allow me to eject the ghost/non-existent dvd, at which point I can make a second (equally futile) attempt. Does anyone have an explanation for this behavior? How can the ISO be valid enough to mount as a drive image, but not valid enough for Fusion to mount it as if it were a dvd?

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• How to securely connect to multiple different LDAPS servers (Debian)

  - by Pickle

  I'm trying to connect to multiple different LDAPS servers. A lot of the documentation I've seen recommends setting TLS_REQCERT never, but that strikes me as horribly unsecure to not verify the certificate. So I've set that to demand. All the documentation I've seen says I need to update ldap.conf with a TLS_CACERT directive pointing to a .pem file. I've got that .pem file set up with the certificate from LDAP Server #1, and ldaps connections are happening fine. I've now got to communicate securely with another LDAP server in another branch of my organization, that uses a different certificate. I've seen no documentation on how to do this, except 1 page that says I can simply put multiple (not chained) certificates in the same .pem file. I've done this and everything is working hunky dorey. However, when I told a colleague what I did, he sounded like the sky was falling - putting 2 non-chained certificates into one .pem file is apparently the worst thing since ... ever. Is there a more acceptable way to do this? Or is this the only accepted way?

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• LMDE detects a wireless card, but can't use it

  - by Davidos

  LMDE can see my wireless card, and correctly identifies it, but it refuses to let me turn it on through the shiny graphical interface. Is there a way to use the non-shiny terminal to turn on my wireless? One small tidbit I noticed was the stated version; it says the version is 00. I believe that's hexadecimal for 0, which may indicate something screwy with the software. It would be nice if someone could tell me how to figure out how to solve this kind of problem in the future. *-network DISABLED description: Wireless interface product: Centrino Wireless-N 1000 vendor: Intel Corporation physical id: 0 bus info: pci@0000:09:00.0 logical name: wlan0 version: 00 serial: 91:e3:7b:0d:a3:a9 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlagn driverversion=3.0.0-1-amd64 firmware=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:43 memory:e1d00000-e1d01fff I've tested multiple other network managers, and none of them work. W ireless switch is on, I'm sure it's a driver problem.

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