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• Uninstalled server 2008 now router won't handle DHCP

  - by john

  My set up is this. server behind router, router has a server and switch connected to it with multiple computers. router used to serve DHCP and DNS, a couple of days ago installed AD, DNS and DHCP on the server, and the server gave out IP's. For various reasons we had to uninstall the domain on our server. I removed AD, DHCP and DNS from the roles and set the router back to serving DHCP and DNS. Now I can't get computers on the network. I reset my router back to factory defaults, and if I plug a computer directly into the router I can get a IP address, but all the computers behind the switch can't get an IP address and can't see the router. All my computers say unidentified network, and if I ping the router it says host is unreachable. On the other hand, my wireless devices are just fine and connect no problem. But for desktops, ipconfig /release doesn't release anything and /renew can't find a server to renew on. My router log shows several FIN scans but they are from innocuous websites (google, netgear) and it shows a couple of smurf attacks but they are all from my external IP. Any ideas? the server isn't even connected to the route right now, and all the computers are set for dynamic IP addresses.. I don't know what else to try? Any help?

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• Every month, scheduled task fails and password must be reset - why?

  - by Ducain

  [NOTE: I posted this originally at StackOverflow but it got no traction there - reposting here.] We have a bit of software installed at a few client locations that runs (via Windows task scheduler) a few times each day. In ONLY ONE of the client locations, we have a unique problem: each month, the task will stop working, after running every day for weeks. Twice now it's failed on the 2nd of the month. When I walk the client through troubleshooting it, we've found that it can't start - access denied. To fix it, we simply re-enter the same exact password, and then off it goes happy as a clam. I've never heard of this issue, and their IT people say they don't have anything running once a month that might cause that. I'm at a complete loss here. Any ideas as to why this might be happening? Further details: Windows XP pro machine. Task is being fired with credentials from a local admin account. Computer is always on, and connected to the net.

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• nginx codeigniter rewrite: Controller name conflicts with directory

  - by palerdot

  I'm trying out nginx and porting my existing apache configuration to nginx. I have managed to reroute the codeigniter url's successfully, but I'm having a problem with one particular controller whose name coincides with a directory in site root. I managed to make my codeigniter url's work as it did in Apache except that, I have a particular url say http://localhost/hello which coincides with a hello directory in site root. Apache had no problem with this. But nginx routes to this directory instead of the controller. My reroute structure is as follows http://host_name/incoming_url => http://host_name/index.php/incoming_url All the codeigniter files are in site root. My nginx configuration (relevant parts) location / { # First attempt to serve request as file, then # as directory, then fall back to index.html index index.php index.html index.htm; try_files $uri $uri/ /index.php/$request_uri; #apache rewrite rule conversion if (!-e $request_filename){ rewrite ^(.*)/?$ /index.php?/$1 last; } # Uncomment to enable naxsi on this location # include /etc/nginx/naxsi.rules } location ~ \.php.*$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini # With php5-cgi alone: fastcgi_pass 127.0.0.1:9000; # With php5-fpm: #fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } I'm new to nginx and I need help in figuring out this directory conflict with the Controller name. I figured this configuration from various sources in the web, and any better way of writing my configuration is greatly appreciated.

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• Remote reboot of windows to knoppix

  - by user64452

  I am attempting to develop an Auditing application. This audit application will be employed on windows networks. The Audit will need to discover Hardware and software details of all machines attached to the network (including Printers) I do not want to have to install this application on each workstation. The audit app. needs to discover all the ip addresses of all the networked workstations. I have been prototyping this app for the last couple of months and have decided to try a new tack Is this possible? a). You have a windows network, min Windows XP sp3 and upwards b). Maximum of 100 Networked machines (if that matters) c). I need to remotely reboot each WINDOWS machine in turn on the entire network and get it to startup using UNIX, say knoppix for example! d). however the knoppix live cd is only available from one of the networked machines Questions... Morphology? Longevity? Incept dates? Cheers DD

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• Is the Windows VPN secure?

  - by Tor Haugen

  I have used a few VPN solutions over the years. Most are hard to set up, slow to connect and/or rather ill-behaved (replacing system drivers, disrupting each other etc). One solution I have never used earlier is the one built into Windows. This is mostly because the infrastructure guys always refuse to use it because they claim it's 'not secure'. Now I have finally had the chance to use it (on Windows 7), and wow, it's a breeze! Easy to set up, well-behaved, it connects almost instantly, automatically authenticates with my logged-in credentials, and integrates excellently with the UI. I have to say, unless it really isn't secure, I'll be happy if I never have to use another VPN product ever again. I gather the Windows VPN used to rely on PPTP, which is not considered secure. But in Windows 7/2008, it supports L2TP/IPSec, SSTP and IKEv2, and authenticates with EAP or CHAP/CHAPv2. That seems pretty up-to-date to me. But I'm just a lowly developer. Can someone in the know give me the lowdown on this?

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• Laptop Synaptics Touchpad No Longer Functional After Windows 7 Upgrade

  - by Chance

  I have a Toshiba laptop, with an integral Synaptics (PS/2 port) touch pad, that I bought pre-installed with 32-bit Windows Vista. After doing a clean install of 32-bit Windows 7, I can no longer get the touch pad to respond. The function (FN) keys on the laptop still operate correctly, but they no longer display on screen when used. I have no way of knowing if the function key to enable / disable the touch pad is working correctly, although the function keys for dim / brighten display, as well as others, work fine. I have removed the device from the device manager and allowed it to reinstall with no success. I have removed the previous drivers and updated them with the current 32-bit Win7 compatible versions from Synaptics website, with no success. The Synaptics icon displays in the taskbar, and the touch pad is available in the Device Manager, both of which say the device is installed and working correctly. I have checked to make sure that the touch pad is enabled in the Synaptics menu, and have tried toggling enabled / disabled with no success. If anyone has any suggestions, or knows where I can find a solution, I would be very appreciative.

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• I need to take the first three letters of a filename and set it into a text file, in a certain fashion. How can I do this?

  - by JuniorD

  Okay, so I need to take the first three letters of a file from a list of files, and place this into a text file in a certain manner. I will provide examples below. Lets say that I have two file names in the same directory, one called cougar.txt and the other bear.txt. These are in the animals directory. I need to take the first three letters of these words, and transpose them into a text file along with the directory, in the following format: BEA = "animals/bear.txt" COU = "animals/cougar.txt" This should happen with any random thing that might be in the list. I'm fairly new to this sort of coding, so I'm not quite sure which language to use, and I'm learning as I go. This new challenge seems fairly daunting to me, and I would be much appreciated if you guys could help. Also, I'm using Windows 7. Been attempting at this all day, to no avail. Preferably done in batch, but if that is impossible I'm open to recommendations.

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• Is Ubuntu a bad distro for a standalone mysql database server?

  - by DhruvPathak

  I read an article here : http://www.mysqlperformanceblog.com/2011/12/08/which-linux-distribution-for-mysql-server/ On the other end there are Debian and Ubuntu. Both use tool called dpkg for package management. There isn’t a month that I log in to a system based on either distribution where there are no issues with packages consistency. Unfinished installations, unresolved conflicts are so common that it’s just beyond simple negligence. The packaging system is just not robust enough. Another problem is that one broken package may block you from installing or uninstalling anything else. Imagine that someone left system in such shape, you prepared for downtime, stopped MySQL and… error – text editor has not been properly installed, so you cannot upgrade MySQL either until the problem is fixed. In a stressful situation when downtime clock ticks – annoying at best We prefer Ubuntu server because of familiarity and Ubuntu also being development environment. Questions: Is Ubuntu used commonly in production for a mysql database server ? Is it worth the trouble ever to have one distro eg Ubuntu in web server, and another say Red Hat in database server ? Or Is a homogenous server pool a better choice ?

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• Proxmox: VMs and different public IPs

  - by Raj

  I have a server which has two NICs and both are directly connected to internet. I have five different public IP addresses available for the VMs. The host machine (Proxmox) doesn't need to use any (it'll use a private IP and that's all) but will have internet connection. I've gone through the Proxmox documentation and I'm not able to understand the big picture to set up the right network configuration for my needs. In short, what I have is: One server (Proxmox, host machine) On that server, 5 VMs are created 5 public IP addresses available (one for each VM), let's say: 80.123.21.1, 80.123.21.2, 80.123.21.3, 80.123.21.4, 80.123.21.5 What I have now for the host is the following: auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto eth1 iface eth1 inet manual auto vmbr0 iface vmbr0 inet static address 192.168.1.101 netmask 255.255.255.0 bridge_ports eth0 bridge_stp off bridge_fd 0 auto vmbr1 iface vmbr1 inet manual It can be reached from the internal network, so that's OK. It has internet connection, which is also OK. vmbr1 is going to be used by the VMs. Each VM will have its own IP on his network interfaces configuration file. For some reason, VMs will not have internet and they won't be able to have public IP address. If I use NAT, it will work correctly, but they will not use the public allocated IP addresses for them. Am I missing something?

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• How can I duplicate HBCD's XP boot loader with my MBR?

  - by Warpstone

  I'm stumped. I'm migrating a Win XP Lenovo T500 to an SSD: I copied the XP partition using EaseUS to the SSD. Aligned the boot sector using Gparted The MBR needs to be rebuilt (fair enough) However, all attempts to use the Windows Recovery console hang (both via a boot CD and even when the console was installed as a boot option). I've tried using a bunch of tools to rebuild/replace the MBR, but no dice. They all say the MBR has been fixed, but I cannot load Windows from the SSD. The HBCD's boot from windows option works just fine however. I'm confused as to what HBCD can do that my drive can't. How can I get that functionality on my SSD? Is it a MBR fix I can mirror? The SSD is extremely fast when I do use HBCD to boot up... but it would be nice to not need a token-based access to the machine! :) Note: I know, windows 7 may be worth a fresh install, but I'm trying to avoid the cost and hassle if possible.

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• Hostname vs webpage domain.

  - by Mark

  Hi All, Im just starting to look at deploying a webpage and get into the joy of DNS etc. And im wondering how you set up multiple web-servers all with thier own hostnames/public IP addresses, and yet have them serve up a webpage from one domain. For example, lets say you have a website example.com, and an A record in DNS that points at it's IP address of 1.2.3.4 . You want to have two servers, prod1 and prod2 with some kind of load balancer in front of them for fail over reasons. The way I see it you would want to have the hostnames of these servers as prod1.example.com and prod2.example.com and perhaps loadb.example.com. How would you set up the DNS so this would all work. ie you could ssh to any of the server domains, prod1.example.com, prod2.example.com or loadb.example.com and also just use the www.example.com url to go to the website. And would all these server names be resolvable from the public internet and is that safe? This would be a linux environment, for arguments sake ubuntu, a django framework dynamic website, running in apache 2.2 Cheers Mark

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• Compare-Object gives false differences

  - by Andy

  I have some problem with Compare-Object. My task is to get difference between two directory snapshots made at different times. First snapshot is taken like this: ls -recurse d:\dir | export-clixml dir-20100129.xml Then, later, I get second snapshot and load both of them: $b = (import-clixml dir-20100130.xml) $a = (import-clixml dir-20100129.xml) Next, I'm trying to compare with Compare-Object, like that: diff $a $b What I get is in some places files that were added to $b since $a, but in some -- files that were in both snapshots, and some files, that were added to $b, are not given in Compare-Object output. Puzzling, but $b.count - $a.count is EXACTLY the same as (diff $a $b).count. Why is that? Ok, Compare-Object has -property param. I try to use that: diff -property fullname $a $b And I get the whole mess of differences: it shows me ALL the files. For example, say $a contains: A\1.txt A\2.txt A\3.txt And $b contains: X\2.mp3 X\3.mp3 X\4.mp3 A\1.txt A\2.txt A\3.txt diff output is something like that: X\2.mp3 => A\1.txt <= X\3.mp3 => A\2.txt <= X\4.mp3 => A\3.txt <= A\1.txt => A\2.txt => A\3.txt => Weird. I think I don't understand something crucial about Compare- Object usage, and manuals are scarce... Please, help me to get the DIFFERENCE between two directory snapshots. Thanks in advance UPDATE: I've saved data as plain strings like that: > import-clixml dir-20100129.xml | % { $_.fullname } | out-file -enc utf8 a.txt And results are the same. Here're excerpts of both snapshots (top 100-something lines, a.txt and b.txt), output of compare-object, and output of UNIX diff (unified). All files are UTF-8: http://dl.dropbox.com/u/2873752/compare-object-problem.zip

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• How do you update without cutting off users?

  - by Griffin

  I searched around and I was surprised that I couldn't find an answer to this question. My assumption is that you have multiple servers. Normally they both will be doing their specific take (for the rest of this I will assume a simple website). Now lets say server A & B need updates. Do you update server A while server B keeps pushing out the webpage and then when server A is okay you update server B? This seems like it would work in small scale but seems horrible in large scale due to the fact that you'd need twice the power that you normally have. When dealing with a large number of servers do you update small sections at a time? I thought the problem with this would be if server A can't work alongside server B C D E or F any-longer that's not that bad. But when you start updating you slowly lose this small percentage. What is the proper way to deal with updates like this?

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• Is there any way to get spotlight or media browser in OSX (Snow Leopard) to index and recognize meta

  - by jaydles

  It seems silly to go to all the trouble to assign "Face" data to thousands of photos, but not make it possible to use that data to locate them outside of that application. I know that that metadata is stored in the "library" database for Aperture/iphoto, rather than on the actual files (which is too bad). And I can even potentially see why it might create challenges for spotlight to use it, since spotlight if presumably a file index system, not a media organizer, but surely the media browser used across the other OSX apps is intended to use it? The media browser's whole purpose seems to be to let you easily locate and reference the items you organize in one of the ilife apps (iphoto or Aperture, in this case) from the others (say, imovie, or Mail). It's particularly vexing since the photo app on the iphone sorts by faces by default. Additionally, the mac-based media browser does access smart albums and folders, so you could establish a workaround by creating a smart album for each "face" or place, or tag, and access them that way, but it seems like there must be an easier way. Am I missing something?

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• Ubuntu + LigHTTPd: Server requests taking ages

  - by ctrl_freak

  I've had an issue since upgrading my distro a couple of weeks ago from hardy; receiving data after making a request has increasing intervals of nothing, as you can see from the picture below. http://i49.tinypic.com/2w5lvr9.png I have since reinstalled fresh from an Ubuntu 10.04 Server (i386) disk, but am still having the same issues. I'm running on a LigHTTPd, MySQL, PHP5 stack. The surprising thing is, that local browsing using lynx is super fast, as expected. Initially, after reinstalling, I copied over the old configuration files from the previous installation, but have since reinstalled LigHTTPd and rebuilt the config file from scratch. The only correlation I could find, was that I attempted installation of ionCube and Zend Optimizer for a script I was testing, however I would think that it could no longer impact seeing I had reinstalled the OS. I have also removed Suhosin just in case, however it had no impact. I'm thinking it possibly has something to do with networking, but I wouldn't know where to start. The server is manually assigned an IP by it's MAC address on the router. The fact that the time seems to be exponential (to a point) worries me. I've tried strace'ing the LigHTTPd and MySQL processes, however I couldn't see anything obvious, not that I'd really know what I'm looking for. RAM and CPU usage don't seem to be out of the ordinary, but I can't say its perfect.. I'm hoping someone has experienced the same, or can point me in a direction, as searching has proved fruitless as I don't know anything specific. Config files can be posted, if requested.

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• How to get Postfix to send/forward/relay to a sub-domain located on another server?

  - by thiesdiggity

  I have a quick question. How do I setup postfix to send an email to another server (Exchange Server) when sending to an email address that has a sub-domain of our main server. For example, say our main server is mail.example.com and we have a Exchange server setup to receive emails from exchange.example.com. We have the MX records setup in our DNS and it receives correctly if we send from a GMail account. However, when we try to send an email from a @example.com account we get the following error: Host or domain name not found. Name service error for name=exchange.example.com type=A: Host not found I believe Postfix checks for local mailboxes first and if its setup with the domain it delivers to the local account, but in this case the sub-domain accounts are located in another server. Anyone have any thoughts on what I need to do within Postfix so it doesn't look locally for the exchange.example.com mailboxes? I found relay_domains directive within Postfix but that doesn't seem to fix it when I add the sub-domain. Thanks for your help.

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• rsync --remove-source-files but only those that match a pattern

  - by Daniel

  Is this possible with rsync? Transfer everything from src:path/to/dir to dest:/path/to/other/dir and delete some of the source files in src:path/to/dir that match a pattern (or size limit) but keep all other files. I couldn't find a way to limit --remove-source-files with a regexp or size limit. Update1 (clarification): I'd like all files in src:path/to/dir to be copied to dest:/path/to/other/dir. Once this is done, I'd like to have some files (those that match a regexp or size limit) in src:path/to/dir deleted but don't want to have anything deleted in dest:/path/to/other/dir. Update2 (more clarification): Unfortunately, I can't simply rsync everything and then manually delete the files matching my regexp from src:. The files to be deleted are continuously created. So let's say there are N files of the type I'd like to delete after the transfer in src: when rsync starts. By the time rsync finishes there will be N+M such files there. If I now delete them manually, I'll lose the M files that were created while rsync was running. Hence I'd like to have a solution that guarantees that the only files deleted from src: are those known to be successfully copied over to dest:. I could fetch a file list from dest: after the rsync is complete, and compare that list of files with what I have in src:, and then do the removal manually. But I was wondering if rsync can do this by itself.

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• How do I make a PPT file as small as possible?

  - by grunwald2.0

  Currently I am agonizing over several large presentation files, which I happened to reprint to PDFs... One thing I wondered: Do PPT's (from Microsoft Powerpoint) always to have to be that big? And what would be the strategies to make a PPT smaller? (If we say "ceterus paribus" at e.g. 25 slides and assuming that one isn't allowed to use a cloud-based service like GDocs, rocketslide or Prezio.) Of course there are the obvious "bad guys": Images and graphics. But: How about roll-over animations etc, who knows how much space they take? How about "smart arts"? Could one save file size if one would use "Open Office" or "Libre Office" Impress? (I didn't try it yet.) And "what if": What if we need to include e.g. five images (or charts that can't be remade in Excel in time), how would we best reduce the file size impact of those five images, if we needed to? I ask all this from an honest "business" perspective. I am no nerd or "Microsoft MVP" and I don't intend on delving into LATeX or similar yet. But that doesn't mean that I am not curious and very willing to learn. I am basically interested in (proven) best practices. Yes I know this question is lacking "initial research", but I think the perspective of my question is interesting and unique to a lot of people and if we intend to make SE a "Q&A" / Wiki kind-of reference site, this question might be a good way to "collect" advice on a question that has a very defined goal: Minimum file-size.

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• Upgrade or replace?

  - by Felix

  My current PC is about four years old, although I have made upgrades to it throughout its existence. The current specs are: (old) Intel Pentium D 2.80Ghz (32K L1 / 2M L2), Gigabyte 945GCMX-S2 motherboard (old) 2.5GB DDR2 (slot0: 512MB @ 533Mhz; slot1: 2GB @ 667Mhz) (new) HIS Radeon HD 4670 - I think this is limited by the motherboard not supporting PCIe 2.0 (?) (old) WD Caviar 160GB - pretty slow (new) WD Caviar Black 640GB (if any more specs are relevant, let me know and I'll add them) Now, on to my question. I've been having performance issues lately, both in video games and in intensive applications. A couple of examples: Android application development (running Eclipse and the Android emulator) is painfully slow (on Linux). I only realized this when, at my new job as an Android dev, both tools are MUCH quicker. (I'm not sure what CPU I have there) The guys at my new job got me NFS Hot Pursuit, in which I barely get like 5-10FPS, even with graphics options turned all the way down My guess is that the bottleneck in my system is my CPU, so I'm thinking of upgrading to a Quad Core i5 + new motherboard + 4GB DDR3 (or more, 'cause I know you'll all jump and say 8GB minimum). Now: Is that a good idea? Is my CPU really a bottleneck, or is the whole system too old and I should replace it? I run Windows 7 on the old, 160GB HDD (which is on IDE, by the way). Could this slow down games as well? Should I get a new drive for Windows if I want to play new games? I know nothing about power supplies. Could that be a problem / will it be a problem if I upgrade to an i5? How come DiRT2 works on full graphics settings (pretty amazing graphics by the way) and NFS Hot Pursuit pulls only 5-10FPS?

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• Application that will identify percentage of your system disk bandwidth used on a user-application by user-application basis?

  - by Warren P

  I always (subjectively) feel my computer is far too slow (however fast it is), and so I'm always looking for ways to measure and understand what my computer is actually doing, that is making it seem "slow" to me. It has been my observation that my software-developer workload is most often disk-bound (I am waiting for Disk I/O) more than CPU bound. What has made it worse, is that I am using a corporate PC that has in-memory active-scanning anti-virus software that I do not have control over, and also some IT department mandated services that seem to suck up a lot of available hard-disk bandwidth. The best tool I have seen (in Windows 7) is the Resource Monitor which I usually acess from the button in the task Manager. The disk IO page, however, seems to label Disk Activity at a very low level (for example, showing the Volume Shadow Storage, which is flushing information obviously written by something ELSE other than VSS itself, and then writes to Pagefile.sys, which are obviously due to Virtual Memory faults in some application). What I would like to know is if a utility exists that can add up all direct disk input and output by user-level process, or find the process or service that caused VM or VSS activity. In that way, I hope, you could establish a real idea of how much of your computer's precious disk subsystem bandwidth is attributable to a particular application. here's a scenario: MyApp.exe writes 100k/s and reads 100k/s directly. VSS ends up writing another 100k/s. pagefaults caused inside MyApp.exe cause another 100k/s of writes. So the total "cost" of MyApp.exe running, during a period of time (let's say 1 second) is 400k/s, whereas you can only directly observe half of that, in Resource Monitor. Is there a smarter disk-IO watching piece of software I can use?

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• Uploading to another domain gives HTTP code 405

  - by dragon112

  I'm trying to upload a file (which can be quite large) from the website of one server to the backend of another server using plupload. Lets say: domain 1 = http://www.websitedomain.com/uploadform domain 2 = http://www.backenddomain.com/uploadhandler Trying to upload i send the following: OPTIONS /main/uploadnetwork.php HTTP/1.1 Host: backenddomain.com Connection: keep-alive Access-Control-Request-Method: POST Origin: http://www.websitedomain.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4 Access-Control-Request-Headers: origin, content-type Accept: */* Referer: http://www.websitedomain.com/uploadform Accept-Encoding: gzip,deflate,sdch Accept-Language: nl-NL,nl;q=0.8,en-US;q=0.6,en;q=0.4 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 DNT: 1 But when I try to start the upload the server returns the following: HTTP/1.1 405 Method Not Allowed Allow: GET, HEAD, OPTIONS, TRACE Content-Type: text/html Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET X-Powered-By-Plesk: PleskWin Date: Mon, 01 Oct 2012 12:41:57 GMT Content-Length: 999 After doing some research I found out that a browser does this to check if the server will accept the intended message. It looks like my server doesn't feel like accepting a simple POST call even tho i use post all the time. The Google Chrome console gives the following error: XMLHttpRequest cannot load http://www.backenddomain.com/uploadhandler. Origin http://www.websitedomain.com is not allowed by Access-Control-Allow-Origin. Does anyone know how to stop the browser from checking or how i can tell my server to just accept the POST?

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• How do you enable webcam support in facebook for ubuntu 10.04?

  - by Jonathan

  I think I have finally arrived at an insolvable equation: Chromium v.7 + Ubuntu 10.04 + Sun Java 6 + Webcam + Facebook + Flash 10 = non-functional All of those items listed above are potential points of failure in this situation, and any help narrowing them down would be fantastic. I am simply trying to enable webcame support directly through Facebooks website. Forum searches and the usual googling turn up few posts related to this specific equation. Two of the major suggestions include: 1) Installing the Sun (I refuse to say oracle sob)-provided Java implementation instead of the OpenJDK normally installed in ubuntu. And yes, after installing it, I did update all my default supports to use the sun commands over the openjdk. 2) Somehow enabling Facebook as a permitted site to access my webcam using Flash settings. I have not been able to explore option 2 because I cannot find a way to adjust the Flash settings in chromium 7. Other factors that do not help include the fact that I am pretty sure facebook changes its webcam interface every 10 seconds just to keep troubleshooters and support personnel on their toes. If anyone has a OTP that informs us of the next shift in the app, a leak would be greatly appreciated! Cheers!

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• ASA access lists and Egress Filtering

  - by Nate

  Hello. I'm trying to learn how to use a cisco ASA firewall, and I don't really know what I'm doing. I'm trying to set up some egress filtering, with the goal of allowing only the minimal amount of traffic out of the network, even if it originated from within the inside interface. In other words, I'm trying to set up dmz_in and inside_in ACLs as if the inside interface is not too trustworthy. I haven't fully grasped all the concepts yet, so I have a few issues. Assume that we're working with three interfaces: inside, outside, and DMZ. Let's say I have a server (X.Y.Z.1) that has to respond to PING, HTTP, SSH, FTP, MySQL, and SMTP. My ACL looks something like this: access-list outside_in extended permit icmp any host X.Y.Z.1 echo-reply access-list outside_in extended permit tcp any host X.Y.Z.1 eq www access-list outside_in extended permit tcp any host X.Y.Z.1 eq ssh access-list outside_in extended permit tcp any host X.Y.Z.1 eq ftp access-list outside_in extended permit tcp any host X.Y.Z.1 eq ftp-data established access-list outside_in extended permit tcp any host X.Y.Z.1 eq 3306 access-list outside_in extended permit tcp any host X.Y.Z.1 eq smtp and I apply it like this: access-group outside_in in interface outside My question is, what can I do for egress filtering? I want to only allow the minimal amount of traffic out. Do I just "reverse" the rules (i.e. the smtp rule becomes access-list inside_out extended permit tcp host X.Y.Z.1 any eq smtp ) and call it a day, or can I further cull my options? What can I safely block? Furthermore, when doing egress filtering, is it enough to apply "inverted" rules to the outside interface, or should I also look into making dmz_in and inside_in acls? I've heard the term "egress filtering" thrown around a lot, but I don't really know what I'm doing. Any pointers towards good resources and reading would also be helpful, most of the ones I've found presume that I know a lot more than I do.

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• Relative path incorrect in the view layer when hosting a rails3 app in a subdirectory using passenger and apache

  - by Saifis

  I want to host multiple Rails apps on a multiple server using sub-directories. And have encountered some relative path problems. I have made a symbolic link to the app's public directory and placed it in the /var/www/html directory, var/www/html/ /test_app (symbolic link to the public folder of test_app) and set apache as so LoadModule passenger_module /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.12/ext/apache2/mod_passenger.so PassengerRoot /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.12 PassengerRuby /usr/local/bin/ruby <VirtualHost *:80> ServerName test.com DocumentRoot /var/www/html Options Indexes FollowSymLinks -MultiViews RailsBaseURI /test_app </Location> </VirtualHost> The links in the app itself works just fine, all the links acknowledge the test_app/ directory and work, however, when it comes to showing images in the public directory in the view, the relative path goes wrong. Say I have /system/files/1/aaa.png it goes looking for it in /var/www/html/system/files/1/aaa.png rather than /var/www/html/test_app/system/files/1/aaa.png As far as I understand this is an Apache setting problem than something to be done in Rails, if its possible I would prefer to have it contained in the conf file of apache rather than having to alter the code.

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• Revamping an old and unstable office IT-solution using Windows Server and OpenVPN

  - by cmbrnt

  I've been given the cumbersome task to totally redo the IT-infrastructure for a customer's office. They are currently running Windows XP all over, with one computer acting as a file server with no control over which users have access to which files, and so on. To top it off, this file server also functions as a workstation, which means it gets rebooted every time the user notices some sluggish behavior or experiences problems with flash games. To say the least, this isn't working for them. Now - I've got a very slim budget, but I need to set up a new server, and I wish to run Windows Server 2008 on it. I also need the ability to access the network remotely via VPN. Would it be a good idea to install VMware ESXi 4.1 onto the new server, and then run Windows Server 2008 as well as a separate Debian install for openvpn on it? I don't like the Domain Controller for the future AD to also run a VPN-server, because of stability issues when something goes to hell with either of them. There will be no redundancy though. However, I'm not sure if there is something to gain by installing a VPN solution on the Windows Server itself, when it comes to accessing file shares on the network via VPN. I don't know how to enable users logging in via the VPN to access the remote files, since they will be accessing the network from their own home computers (which is indeed a really bad idea, but this is what I've got to work with). They won't be logged in to the windows Domain, but rather their home workgroups. I need to be able to grant access to files in certain directories based on the logged in AD-user, but every computer won't necessarily be configured to log into the domain. I'm not sure how to explain this in a good way, but I'd be happy to clarify if somethings not clear. Any help would be great, because I've got a feeling that I can't do this without introducing a bunch of costly new rules when it comes to their IT-solution. I'd rather leave that untouched and go on my merry way to the next assignment.

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