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• OpenVPN to connect remote networks, peer to peer instead of client/server possible?

  - by John Robertson

  I would like to connect two remote networks using OpenVPN. I am very new to this we are very small and don't have a sys/network admin. What are the possible setups to have both networks both live on a common LAN via OpenVPN? I would prefer to use the UDP peer model rather than client/server. Is there a way to set that up instead? I can't see how because no computer on existing network A has a routable address to any computer on existing network B and vice versa.

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• Robustly disabling specific cron.{hourly,daily,weekly} script

  - by benizi

  On various systems that I administer, there are cron scripts that get run via the commonly-used /etc/cron.{hourly,daily,weekly} layout. What I want to know is whether there's any common 'disable this script' functionality. Obviously, simply deleting something out of a given directory will disable it, but I'm looking for a more permanent solution. Deleting /etc/cron.daily/slocate will work to disable the nightly updatedb on my home machine (where I never use slocate), but next time I upgrade the slocate package, I'm pretty sure it'll reappear. The two distributions I'm most interested in are Gentoo and OpenSUSE, but I'm hoping there's a widely-implemented mechanism. Both distros as I have them use vixie-cron (not sure it matters).

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• How to ban fans from a specific country - Facebook

  - by Lukas

  my question is kind of weird, because i want thousands of fans to dislike my page! Since this is not a common problem I hardly can find anything about it! my facebook page just got spammed with thousands of "fans" from a specific country. When I set a coountry restriction for that country, will the fans be banned and the number of fans be the same as before the spam-attack? I really need to get rid of those fans. I already restricted that country and facebook actually updated the chart where I can see where my fans are coming from. So fb knows that I have those "fans", but the number of likes remains the same... Any idea? It is not possible to ban every fan 1 by 1 because I can only see the last 100 fans.

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• How to scan and annotate documents and receipts so metadata is searchable and embeddeded in document

  - by Precipitous

  I'm getting tired of living in the modern age and still having a messy filing cabinet full of paper. I have a nice cheap scanner and want to scan receipts, warrenties, and so forth. To make it possible to find these, I'd like to make them searchable via Windows Search (or google desktop search). Because I'm lazy with backups, I want a file format that embeds metadata into the file. Backups should be as simple as coping a bunch of image files around. I'm also cheap, and am not going to install an expensive solution. I'm hoping one of the basic formats can do this. So, what common scannable format satisfies: searchable and and metadata embedded in image generated. The more "open" and portable the better.

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• Working WCF WebServices with NLB server

  - by gguth

  Im starting the architecture of a new project using WCF, but im not the right person to make some network considerations, so im doing some research but cannot find the answers to these questions: We´ll host the WCF service in a common Windows Service app in 2 servers and we´ll have another server to make the Load-Balancing job using the WNLB. The fact that we are hosting the WCF in a Windows Service app can disturb the NLB job? Before my research i thought the load balancing was tought to configure, but with NLB it seems to be very simple, its really that simple? Note: The binding will be basicHttpBinding

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• How reliable is HDD SMART data?

  - by andahlst

  Based on SMART data, you can judge the health of a disk, at least that is the idea. If I, for instance, run sudo smartctl -H /dev/sda on my ArchLinux laptop, it says that the hard drive passed the self tests and that it should be "healthy" based on this. My question is how reliable this information is, or more specifically: If according to the SMART data this disk is healthy, what are the odds of the disk suddenly failing despite this? This assumes the failure is not due to some catastrophic event that impossibly could have been predicted, such as the laptop falling down on the floor causing the drive heads to hit the disk. If the SMART data does not say the disk is in good shape, what are the odds of the disk failing within some amount of time? Is it possible that there will be false positives and how common are these? Of course, I keep backups no matter what. I am mostly curious.

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• Screen flicker -> Severe System Slowdown?

  - by Adam Robinson

  I'm using a Dell D830 laptop, and over the last few weeks it's been developing a very irritating screen flicker problem that leads to the system slowing down almost to the point of unusability. At seemingly random times (no commonality between how long the system has been running, what I was doing, what applications were open, etc.) my screen (I use two external LCD's with the laptop closed in a dock) flickers for a moment, then the system becomes incredibly slow. The screen redraws painfully slowly--almost like what you might expect to see with generic graphics drivers installed--and the entire system is maddeningly unresponsive. The only thing that seems to be able to correct the issue is a restart. I've checked the event logs and nothing out of the ordinary is there, and definitely nothing that's common to all of the events. I'm running XP Pro SP2. Any ideas?

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• Installing Apache to CentOs 5.7 (problems with repo)

  - by C.S.Putra

  I'm installing Apache on CentOS 5.7, I followed instructions here : http://www.if-not-true-then-false.com/2010/install-apache-php-on-fedora-centos-red-hat-rhel/ I've installed this also : Remi Dependency on CentOS 5 and Red Hat (RHEL) 5 ## rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm When I install this, there's warning: /var/tmp/rpm-xfer.Bqu2xo: Header V3 DSA signature: NOKEY, key ID 217521f6 But it says that the package is alread installed. Then I move on to 3rd steps: yum --enablerepo=remi install httpd php php-common But it says: error getting repository data for remi, repository not found. Why is it like that?

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• OS X Snow Leopard, change file permissions on copy

  - by Francesco K

  I work with OS X, Snow Leopard and need to allow users to make copies of files (templates) located in a read-only repository for subsequent editing. The repository is located on a separate physical drive mounted to the OS X boot volume. As this is a shared computer in a school environment, all users access the machine via a single login ("user_local"). Whether using POSIX permissions or ACLs, the use case requires the file permissions to change from "read" to "read write" as they get copied to the "user_local" home directory. Googling around has not yielded anything that would indicate that this is possible via the Snow Leopard permission system. Question 1: Is this in fact possible via the permission system? If so, how? Question 2: If not possible, how would one go about solving this problem? I imagine this to be a fairly common use case so there must be a workable solution for it out there. Thanks.

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• VMware ESXi 4 On-Disk Data Deduplication - possible and supported?

  - by hurikhan77

  Environment: We are running multiple web, database, and application servers which usually share a pretty common installation (gentoo linux) and similar configuration in VMware ESXi 4. The differences are usually only some installed features or differing component versions. To create a new server, I usually choose the most similar (by features) running server, rsync a copy of it into freshly mounted filesystems, run grub, reconfigure and reboot. Problem: Over time this duplicates many on-disk data blocks which probably sums up to several 10's of gigabytes. I suppose if I could use a base system as template with the actual machines based on top of that, only writing changed blocks to some sort of "diff image", performance should improve (increased cache hit rate) and storage efficiency should increase (deduplicated storage space). This would be similar to what ESXi already supports for RAM deduplication (page sharing). Question: Is there any way to easily do this on ESXi 4? I already share the portage tree via NFS but this would not work for the rootfs.

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• Domain Squatter Blacklist

  - by David Chang

  Is there a list of common ip addresses used by domain squatters (the ip addresses of the sites they resolve the domains to)? I have a list of domains and I need to remove most squatted/parked domains from the list, I can do that in a perl script (that currently removes dead domains) but I need the IP addresses the squatted domains resolve to so I can remove them as well. I know there are spam/phishing/malware blacklists available, does anyone know of a squatter blacklist? I can't find one using Google. EDIT: I am trying to remove dead domains from a list, I can already remove domains that don't resolve but I need to remove squatted domains as well so I need a list of ip addresses squatted domains resolve to so I can remove them.

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• Events 1030 and 1006 in Windows 2003

  - by jab

  I've got a computer running Windows 2003 R2 Standard Edition Service Pack 2 and periodically (every 5 minutes) the systems generates 2 errors that can be seen in the event viewer. The codes of the events are 1030, 1006 that seems to be related to group policies... I don´t know if these events are realted to the perfomance of the system but anyway i would like to fix them. I've googled around and seems to be a common problem but i haven't found a solution for these events. Do you know how can be fix it? Thanks in advance

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• Puppet apache module causing 'Error 400 on SERVER: Invalid parameter identifier'

  - by Andy Shinn

  I am receiving the following error when trying to use the latest puppetlabs-apache module from github (https://github.com/puppetlabs/puppetlabs-apache): Error: Could not retrieve catalog from remote server: Error 400 on SERVER: Invalid parameter identifier at /etc/puppet/environments/apache_update/modules/apache/manifests/mod.pp:40 on node zordon.mydomain.com Warning: Not using cache on failed catalog Error: Could not retrieve catalog; skipping run My node config looks like: node 'zordon.mydomain.com' { include template::common include template::puppetagent include template::lamp User::Create sudo::conf { 'joe': priority = 60, content = 'joe ALL=(ALL) NOPASSWD: ALL', require = User::Create['joe'], } } The template::lamp class is what uses apache module: class template::lamp { include myfirewall Firewall Firewall class { 'apache': } class { 'apache::mod::php': } class { 'apache::mod::ssl': } class { 'mysql::server': } } It looks like serverfault markup is getting garbled on Puppet realize statements. The User::Create and Firewall lines are just realizing a user and 2 firewall rules. I have verified that the /var/lib/puppet/lib/puppet/type/a2mod.rb type has the identifier parameter and it is the same MD5 as the server. I am using Puppet 3.0.1 on both agent and master. Any idea what may cause this?

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• Redirect To Domain Before SSL Is Read

  - by Devin Dixon

  I had to switch servers and I want to redirect all SSL urls to the non-ssl site. The problem I am running into is the https site still throws invalid certificate error even through apache has the redirect implemented. <VirtualHost *:443> ServerAdmin [email protected] DocumentRoot /data/sites/www.example.com/main/ RewriteEngine on Redirect 301 / http://www.example.com SSLEngine on SSLCertificateFile /etc/httpd/ssl/www.examplecom/ssl-cert-snakeoil.pem SSLCertificateKeyFile /etc/httpd/ssl/www.example.com/ssl-cert-snakeoil.key ServerName www.example.com ErrorLog "logs/example.com-error_log" CustomLog "logs/example.com-access_log" common </VirtualHost> My question is, how can I do a redirect and avoid the invalid ssl certifcation error in the browser?

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• Clicking hyperlinks in Email messages becomes painfully slow

  - by Joel Spolsky

  Running Windows 7 (RC, 64 bit). Suddenly, today, after months without a problem, clicking on links has become extremely slow. I've noticed this in two places. (1) clicking hyperlinks in Outlook email messages, which launches Firefox, takes around a minute. Launching Firefox by itself is instantaneous - I have an SSD drive and a very fast CPU. (2) opening Word documents attached to Outlook email messages also takes a surprisingly long time. The only thing these two might have in common is that they use the DDE mechanism, if I'm not mistaken, to send a DDE open command to the application. Under Windows XP this problem could sometimes be fixed by unchecking the "Use DDE" checkbox in the file type mapping, however, I can't find any equivalent under Windows 7. See here for someone else having what I believe is the same problem. See here for more evidence that it's DDE being super-super-slow.

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• basic device that can connect to internet

  - by Hellnar

  Hello, I am looking for a cheap solution to my problem: I need to find either an already existing common device (that is used in restaurants, bars clubs) or a cheap new device that I will distribute to those places, which can connect to internet (via the already existing ethernet or wireless based internet) and do HTTP request/receive response and retrieve information ? (For instance can a POS device connect to internet?) For a project, I need to do identity validation on several restaurants and bars and not all of them have computers. So I will be giving "cheap and easy to use devices" and non-IT personal can use it to do http request to my server and get response. All I can think of is Cell phones and SMS.

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• Can't get MultiViews to work on Apache 2.2 - negotiation problem

  - by Doe

  Hi I can't get MultiViews to set up properly on my Apache 2.2. When I go to filtered.com/something, I expect it to execute something.pl but it doesn't. I get a Error 404 page. In my error logs it says: " [Fri Apr 16 13:04:20 2010] [error] [client 78.85.152.94] Negotiation: discovere\ d file(s) matching request: /var/www/html/filtered.net/translate-english (None could be negotiated)., referer: http://filtered.net/" Would anyone kindly help me so that MultiViews is properly installed on my server? ServerAdmin [email protected] ServerAlias *.filtered.net DocumentRoot /var/www/html/filtered.net ServerName filtered.net ErrorLog logs/filtered.net-error_log CustomLog logs/filtered.net-access_log common Options ExecCGI +Indexes +IncludesNoExec +MultiViews +ExecCGI AllowOverride None Order allow,deny Allow from all <IfModule mod_dir.c> DirectoryIndex index.php index.html index.pl </IfModule> </Directory> </VirtualHost>

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• Beam display from any computer to shared display

  - by rcourtna

  There are probably a lot of ways to skin this cat. Looking for the cleanest. In our office, we have a large display in a common area. We want to allow any computer in our office (mac, linux, windows) to output its video on the large display. Since some of the computers in the office are stationary, and it's not practical to run video cables everywhere, it would be preferable to make this all happen through the network. It is also possible for us to connect a dedicated (& networked) PC to the large display. How can I do this?

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• On Windows, what filename extensions denote an executable?

  - by Ken

  On Windows, *.exe, *.bat, *.cmd, and *.com all represent programs or shell scripts that can be run, simply by double-clicking them. Are there any other filename extensions that indicate a file is executable? EDIT: When I jump into a new project (or back into an old project!), one of the common things I want to do when looking around is to find out what tools there are. On Unix (which I've used for decades), there's an execute bit, so this is as simple as: find . -executable -type f I figured that on Windows, which seems to have a much more complex mechanism for "is this executable (and how do I execute it)", there would be a relatively small number of file name extensions which would serve roughly the same purpose. For my current project, *.exe *.bat *.cmd is almost certainly sufficient, but I figured I'd ask if there was an authoritative list.

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• need help writing puppet module for sssd.conf using Hiera

  - by mr.zog

  I need to build a module to manage /etc/sssd/sssd.conf on our Red Hat VMs. The sssd modules published on the forge don't seem to do what I want, nor do I feel like forking any of them. I want to keep all the configuration data in Hiera's common.yaml file. Below is my sssd.conf file. [sssd] config_file_version = 2 services = nss, pam domains = default [nss] filter_groups = root filter_users = root reconnection_retries = 3 entry_cache_timeout = 300 entry_cache_nowait_percentage = 75 [pam] [domain/default] auth_provider = ldap ldap_id_use_start_tls = True chpass_provider = ldap cache_credentials = True ldap_search_base = dc=ederp,dc=com id_provider = ldap ldap_uri = ldaps://lvldap1.lvs01.ederp.com/ ldaps://lvldap2.lvs01.ederp.com/ ldap_tls_cacertdir = /etc/openldap/cacerts What is the best, most economical way to build the sssd.conf file? Should I have multiple .pp files such as domain.pp, pam.pp etc. or should all the lines of configuration land in init.pp?

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• Dock displays low-resolution icons

  - by squircle

  Recently, I've noticed that the dock has been starting to display low-resolution icons in place of the former high-resolution icons for common apps like Stickies, Word, iTunes and Preview. Looking at the .icns file within each program, all copies of the icon are present within the file (high and low resolutions), but the dock refuses to display them, leaving some programs looking like this: Restarting doesn't stop this behaviour, nor does a killall Dock, nor removing the icon and replacing it in the dock. In Finder, the icons display normally. Does anybody know what may be causing this issue? Thanks!

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• Create and use intermediate certificate authority on Windows Server 2012?

  - by Sid

  Background: Server OS is Windows Server 2012. GUI is installed as we come upto speed with powershell. Setup is staging, not production (yet). We have our (internal, domain limited) Root CA installed. I would like to take the Root CA offline to secure storage but before that I'd like to setup an intermediate CA which can take over actual live, online (int-RA-net) functionality Can someone guide me covering: creating the intermediate CA certificate request installing the intermediate CA certificate on domain controller (certification authority role already installed with Root CA online right now) use the intermediate CA to generate a certificate (any use certificate, just for demonstration purposes) Obviously this certification chain would be invalid on computers outside our domain (self trusted root - our root certificate is NOT from common 3rd parties). This last point is NOT a problem.

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• Comparing zip/compression utilities

  - by Grant Palin

  I've used WinZip, WinRar, and 7zip for packaging and compression. I know the first two are payware, and the last is open source. Despite that, they all seem to serve the same overall purpose. Are there any other distinguishing characteristics that make any of the options stand out? I'm not really looking for a "best" package, but would like to know of noteworthy differences between the common tools. For what it's worth, I do seem to like WinRar. Not sure why, but there it is. If it matters, I'm using Windows 7.

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• Is there any way to limit my Internet connection to a per program basis?

  - by Igoru

  My Linux connection is REALLY free. I live in Brazil, so where I live I can only have 1 Mbit/s. Yes I know it's sad, but it's not the point. Everytime I'm updating my Ubuntu 9.04 or downloading something, it does eat all my bandwidth. Like, while update-manager is downloading the packages, I can see by netspeed applet in my panel that the incoming traffic goes to 110 kB/s. And then, my Emesene suddenly goes disconnected, and I can't navigate. As you can imagine, I can't use my Internet connection again until the packages are all downloaded or I cancel the update in the middle. As I said, same thing happens when I'm dowloading something, but less intrusive and immediate. The question is: is there any way to limit that APT/downloads traffic to some way I can still use my other Internet services, or to reserve some bandwidth for common navigation tasks (like we have on Windows, but I forgot this thing's name, it's like "something packages".

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• HP Proliant ML115 G5 - Boot order lost after reboot

  - by Filipe YaBa Polido

  I have one HP Proliant ML 115 G5 (AMD) with the latest BIOS (07-06-2009) and recently I've installed an USB disk. This is a common problem on old Proliant servers. When you plug the USB disk, BIOS boot order changes and tries to boot via USB. So, I'll change the BIOS settings and make the SATA disk the default boot device. The problem is, when I need to unplug the usb disk, and plug it again later. I can't be always changing the BIOS settings... How can one solve this for ever?!?!

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