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• pros and cons with server management gui tools to manage linux web servers

  - by ajsie

  i have stumbled upon these GUI tools that could help you manage your linux server through a web interface. ebox, webmin, ispconfig, zivios, ispcp, plesk, cpanel etc. i wonder what the pros and cons are with these solutions. a lot of people is saying that they are not as good as using pure command line (ssh) to manage your server. but i think thats yet another "linux are for advanced users" talk. i agree that a lot of things may only be done with the command line by editing directly in the configuration files. but i don't really want to do that every time and for everything. especially basic configurations these could manage. its like not having phpmyadmin for managing mysql. it would be a pain in the ass right? so if one wants to throw up a web server serving a php site oneself developed and wants all the usual stuff up and running (mysql, phpmyadmin, svn, webdav etc) is these tools the right way to go? and for more advanced features, one just use the terminal like old days. is this a smart way of managing a linux server? and which one would you choose? have you used any of these and could share your thoughts about them?

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• ClearOS - how to create a site to site VPN between two ClearOS boxes?

  - by Scott Szretter

  I plan on setting up some ClearOS boxes at several sites, and would like to set up site-to-site VPN between the remote sites and a main site (all running ClearOS enterprise 5.2sp1 / latest version). I have found references for how to set up ClearOS to VPN in to devices such as cisco for IPSEC, and others with PPTP. But for these methods it did not mention how you might configure 2 ClearOS boxes to talk to each other ipsec or pptp. I also saw documentation on installing OpenVPN and using the OpenVPN client software to VPN in to the ClearOS box. I will probably use this for individual users to VPN in, but I have some small sites ( 1 to 10 users) that will have their own ClearOS box and need to create a site to site VPN link back to the main site's OpenVPN box. Is this possible, can you point me to docs, or other info or basically, how? A couple updates: I did find a thread that asks the same basic question, where the user has a vpn set up between the two clearos machines (after installing ipsec vpn modules), just not transporting traffic between the LANS - and the very last post claims you have to edit some files (/etc/ipsec.conf) and set leftnexthop rightnexthop values to %direct. After that, it's supposed to work. Could it be that simple? I also posted to clear foundation, and they pointed me to some documentation for setting up ipsec unmanaged vpn. This looks pretty good, but, I will most likely need to figure out how to handle a dynamic dns type setup at least on one end. Also, what does it mean by multi-wan? Finally, what happens when a vpn connection goes down exactly - someone has to reboot the box or ?

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• Trouble with IIS SMTP relaying to Gmail

  - by saille

  I appreciate that similar questions have been asked about how to setup SMTP relaying with IIS's virtual SMTP server. However I'm still completely stumped on this problem. Here's the setup: IIS 6.0 SMTP server running on Win2k3 box with a NAT'ed IP. Company uses Gmail for all email services. An app on the box needs to send email, so normally we'd just set the app up to talk to smtp.gmail.com directly, but this app doesn't support TLS. Easy, we just setup a local SMTP relay right? So I thought. What we have done so far: Setup IIS SMTP server to relay to smtp.gmail.com, as per these excellent instructions: http://fmuntean.wordpress.com/2008/10/26/how-to-configure-iis-smtp-server-to-forward-emails-using-a-gmail-account/ The local SMTP relay allows anonymous access. Both the local IP and the loopback IP have been explicitly allowed in the Connection... and Relay... dialogs. Tried sending email from 2 different apps via the local SMTP server, but failed (the emails end up in the Queue folder, but never get sent). The IIS logs show the conversation with the local app, but zero conversation happening with smtp.gmail.com. The port used by gmail is open outbound, and indeed the apps we have that support TLS can send email directly via smtp.gmail.com, so there is no problem with the network. At this point I changed the smtp settings in IIS SMTP server to use a different external SMTP server and hey-presto, the local apps can send email via local IIS SMTP relay. So smtp.gmail.com fails to work with our IIS SMTP relay, but another 3rd party SMTP service works fine. We need to use smtp.gmail.com, so how to troubleshoot this one?

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• Need Help Accessing the Vista Wampserver localhost from Virtual PC 2007 running an XP VM.

  - by Reg

  (I had posted this on stack overflow but it was suggested there that I post it here instead). I have a Vista laptop on which I'm running wampserver. I have Virtual PC 2007 setup with Windows XP running on the VM. My goal is to be able to use the XP VM to run IE6 to view the localhost in the Vista wampserver. I'm not interested in having the XP VM have any access to the internet -- only to my Vista wampserver's localhost. The vista wampserver works fine. As suggested on a blog I read, I installed the loopback adapter on Vista and I set the loopback to 192.168.21.1 and I set the xp vm ip to 192.168.21.2. I am able to successfully ping the vista-loopback adapter from the xp vm. I've turned the wampserver to "server online", and I've disabled the firewalls in both the vista host and the xp vm. But for some reason, I still can't seem to get the virtual XP to see the localhost on the vista wampserver. I've tried using the vista //name, and I've tried the ip 192.168.21.1 directly and with the port. For whatever its worth, I'm not able to see anything under the XM VM's network places (though I don't know if I'm supposed to be able to see anything). So at this point I'm stuck and I'm still not sure how to get this XP VM to "talk" to my vista wampserver localhost. Any advice on how to fix this problem is much appreciated. Thanks in advance for your help. -R

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• Installing Munin on Centos 6

  - by justinhj

  I've hit problems installing munin on Centos 6. This seems to be a conflict between parts of Perl. I think the version of Perl is newer on Centos 6 (v5.10.1) When installing munin via yum I get errors relating to perl dependencies as below. I'm not a big enough whiz at yum or rpm to figure out the issue. Munin documentation does not yet talk about installing to Centos 6.0 Error: Package: munin-node-1.4.2-0.rpl1.el5.noarch (/munin-node-1.4.2-0.rpl1.el5.noarch) Requires: perl(Net::SNMP) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: bitstream-vera-fonts Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(HTML::Template) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl-Net-SNMP Error: Package: munin-common-1.4.2-0.rpl1.el5.noarch (/munin-common-1.4.2-0.rpl1.el5.noarch) Requires: perl(:MODULE_COMPAT_5.8.8) Error: Package: munin-node-1.4.2-0.rpl1.el5.noarch (/munin-node-1.4.2-0.rpl1.el5.noarch) Requires: perl(DBI) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(Log::Log4perl) Error: Package: munin-node-1.4.2-0.rpl1.el5.noarch (/munin-node-1.4.2-0.rpl1.el5.noarch) Requires: perl(LWP::Simple) Error: Package: munin-node-1.4.2-0.rpl1.el5.noarch (/munin-node-1.4.2-0.rpl1.el5.noarch) Requires: perl(:MODULE_COMPAT_5.8.8) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(RRDs) Error: Package: munin-node-1.4.2-0.rpl1.el5.noarch (/munin-node-1.4.2-0.rpl1.el5.noarch) Requires: perl-Net-Server Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(Date::Manip) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(:MODULE_COMPAT_5.8.8) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl-Net-Server Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(CGI::Fast) Error: Package: munin-1.4.2-0.rpl1.el5.noarch (/munin-1.4.2-0.rpl1.el5.noarch) Requires: perl(Time::HiRes)

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• A network-related or instance-specific error occurred while establishing a connection to SQL Server

  - by sf

  Hi, I'm getting the following error when trying to load an Asp.NET MVC App on IIS 7 with Sql Server 2008 Express. The App uses Linq to SQL. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) I've done some searching and all answers point to enabling TCP connections in Sql Server Configuration which I have done to no avail. The connection string I am using is: Server=SERVERNAME\SQLEXPRESS;Database=DBName;Integrated Security=true The catch. I have another app that already could talk to the Sql Server just fine. Even before playing around with the Sql Server Configuration Settings. The other app uses the following connectionstring: Data Source=SERVERNAME\SQLEXPRESS;Initial Catalog=OtherDbName;Integrated Security=True;Persist Security Info=False;Connect Timeout=120 I've tried this connectionstring on the app that isn't working and it still doesn't work. Please help. I think i'm about to go crazy

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• Bringing people into an Asterisk conference call

  - by Harley

  I'm using Asterisk 1.4 and am trying to work out a way to bring people into a conference call. In the ideal scenario two people would be talking and one of them would push some keys, then a phone number and then the three of them would be in a conference. From there they should be able to bring in other people as well. This seems to be what the Asterisk n-way call HOWTO is trying to do, but it doesn't work quite properly for me. Here's what happens: 1. Internal person A calls person B 2. Person A presses *0, he is given a dial tone and person B is taken to a conference room 3. Person A calls person C and they can talk, and then person A presses **. 4. Person C is brought to the conference room, but person A is disconnected. In the last step, A should be taken to the conference room as well. Here's the relevant logs, where 230 is person A, 231 is person B, 207 is person C, and 282 is the conference room.

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• RPCSS kerberos issues on imaged Windows workstations

  - by sysadmin1138

  While doing some unrelated troubleshooting I came across a set of Event Log entries that have me concerned. Machine Name: labcomputer82 Source: Security-Kerberos Event ID: 4 Event Description: The Kerberos client received a KRB_AP_ERR_MODIFIED error from the server labcomputer143$. The target name used was RPCSS/imagemaster4.ad.domain.edu. This indicates that the target server failed to decrypt the ticket provided by the client. This can occur when the target server principal name (SPN) is registered on an account other than the account the target service is using. Please ensure that the target SPN is registered on, and only registered on, the account used by the server. This error can also happen when the target service is using a different password for the target service account than what the Kerberos Key Distribution Center (KDC) has for the target service account. Please ensure that the service on the server and the KDC are both updated to use the current password. If the server name is not fully qualified, and the target domain (AD.DOMAIN.EDU) is different from the client domain (AD.DOMAIN.EDU), check if there are identically named server accounts in these two domains, or use the fully-qualified name to identify the server. There are three machine names used in this message. It's generated on labcomputer82, it's attempting to talk to another lab workstation called labcomputer143, and the service in question (RPCSS) refers to the name of the machine that this machine was imaged from (and possibly also that of labcomputer143, I'm not sure). The thing that has me raising both eyebrows is that the machine named labcomputer82 is attempting to use an SPN of RPCSS/imagemaster4.ad.domain.edu. The SPN attribute on the computer object in AD looks just fine. It has all the names it should have. Of the over 3,000 computer objects in our AD domain, somewhere around 1,700 of the are computer-lab seats that are frequently imaged. If we're doing something wrong, I'd like to know in time to get our procedures modified (and people retrained) for fall quarter. But if this is normal for imaged machines, I'll just continue ignoring these.

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• Error in data view when connecting to an Oracle DB

  - by Mike Polen

  When using SharePoint Designer I found this link that stepped me through how to get it working: http://spsolution.blogspot.com/2008/12/how-to-insert-data-source-in-sharepoint.html That allowed SharePoint Designer to talk to Oracle, but when I placed a data view on a page it gave me the following error: Error while executing web part: System.Data.OracleClient.OracleException: ORA-00923: FROM keyword not found where expected at System.Data.OracleClient.OracleConnection.CheckError(OciErrorHandle errorHandle, Int32 rc) at System.Data.OracleClient.OracleCommand.Execute(OciStatementHandle statementHandle, CommandBehavior behavior, Boolean needRowid, OciRowidDescriptor& rowidDescriptor, ArrayList& resultParameterOrdinals) at System.Data.OracleClient.OracleCommand.Execute(OciStatementHandle statementHandle, CommandBehavior behavior, ArrayList& resultParameterOrdinals) at System.Data.OracleClient.OracleCommand.ExecuteReader(CommandBehavior behavior) at System.Data.OracleClient.OracleCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.Syst... 09/14/2009 14:40:23.52* w3wp.exe (0x0FA0) 0x1A88 Windows SharePoint Services Web Parts 89a1 Monitorable ... em.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) at System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) at Microsoft.SharePoint.WebControls.SingleDataSource.GetXPathNavigatorInternal() ... 09/14/2009 14:40:23.52* w3wp.exe (0x0FA0) 0x1A88 Windows SharePoint Services Web Parts 89a1 Monitorable ... at Microsoft.SharePoint.WebControls.SingleDataSource.GetXPathNavigator() at Microsoft.SharePoint.WebControls.SingleDataSource.GetXPathNavigator(IDataSource datasource, Boolean originalData) at Microsoft.SharePoint.WebPartPages.DataFormWebPart.GetXPathNavigator(String viewPath) at Microsoft.SharePoint.WebPartPages.DataFormWebPart.PrepareAndPerformTransform() I am mystified.

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• Getting Perl DBD::mysql working on OS X 10.7?

  - by Bart B

  I can't seem to get Perl & MySQL to talk to each other on OS X 10.7 Lion. I did all the installs by the book, I used Oracle's PKG installer for the latest MySQL Community Server, and I installed DBI and DBD::mysql via CPAN. There were not problems at all during the install, but, when I try to USE DBD::mysql to connect to my local DB server I get the following error: install_driver(mysql) failed: Can't load '/Library/Perl/5.12/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle' for module DBD::mysql: dlopen(/Library/Perl/5.12/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle, 1): Library not loaded: /usr/local/mysql/lib/libmysqlclient.16.dylib Referenced from: /Library/Perl/5.12/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle Reason: image not found at /System/Library/Perl/5.12/darwin-thread-multi-2level/DynaLoader.pm line 204. at (eval 3) line 3 Compilation failed in require at (eval 3) line 3. Perhaps a required shared library or dll isn't installed where expected After a lot of googling all I could find were suggested hacks, so I gave this one a go: http://arkoftech.wordpress.com/2011/02/10/fixing-dbdmysql-for-mysql-5-5-89-under-macos-10-6-x/ I had to update some of the paths in the instructions since on Lion it's Perl 5.12 not 5.10. After doing that I got a new error: dyld: lazy symbol binding failed: Symbol not found: _mysql_init Referenced from: /Library/Perl/5.12/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle Expected in: flat namespace dyld: Symbol not found: _mysql_init Referenced from: /Library/Perl/5.12/darwin-thread-multi-2level/auto/DBD/mysql/mysql.bundle Expected in: flat namespace Trace/BPT trap: 5 There must be a simple way to get MySQL & Perl working on OS X? - HELP!

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• IIS serving static content gives 503 at random

  - by Steffen

  We're having a few issues with our image server. It's a Win 2008 running IIS 7.5 and it only serves static content: images. It has run without issues for quite a while, until recently when we disabled Output Caching, as we noticed having it enabled meant it sent no-cache host-headers to the clients (forcing them to fetch the images from the server every time) We've read quite a bit about it, and it seems IIS just works that way - either you use Output Caching or you get to use cache host-headers. Anyway having disabled the Output Cache, we now experience random 5 minutes intervals, where all requests just get a 503 Service Unavailable. During this period the "Files cached" performance counter staggers (neither increased nor decreased) and after the period all caches are flushed. You might find it weird I talk about caching, since we disabled Output Caching. The thing is we changed the ObjectTTL parameter in registry, so we cache files for 3 minutes (which has worked very well, our Disk I/O dropped significantly) So even with Output Caching disabled, we're still caching plenty of files - if we could just get rid of the random 503 it'd be perfect :-D We don't get any messages in the Windows event log during these 503 intervals, so we're pretty stumped as to what to do. Any ideas are very welcome :-)

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• puppet cert mismatch in ec2

  - by Stick

  I'm setting up a puppetmaster (2.7.6) in ec2 via gems (on rhel6) and I'm running into problems with the cert names and getting the master able to talk to itself. my puppet.conf looks like this: [main] logdir = /var/log/puppet rundir = /var/run/puppet vardir = /var/lib/puppet ssldir = $vardir/ssl pluginsync = true environment = production report = true certname = master When I start the puppetmaster process the ssl directory looks like: ssl/private_keys/master.pem ssl/crl.pem ssl/public_keys/master.pem ssl/ca/ca_crl.pem ssl/ca/signed/master.pem ssl/ca/ca_crt.pem ssl/ca/ca_pub.pem ssl/ca/ca_key.pem ssl/certs/ca.pem ssl/certs/master.pem I have an /etc/hosts entry on the box to point the 'puppet' hostname to localhost so that I don't have to change the 'server' option. When I run the agent I get the following: # puppet agent --test info: Retrieving plugin err: /File[/var/lib/puppet/lib]: Failed to generate additional resources using 'eval_generate: Server hostname 'puppet' did not match server certificate; expected master err: /File[/var/lib/puppet/lib]: Could not evaluate: Server hostname 'puppet' did not match server certificate; expected master Could not retrieve file metadata for puppet://puppet/plugins: Server hostname 'puppet' did not match server certificate; expected master err: Could not retrieve catalog from remote server: Server hostname 'puppet' did not match server certificate; expected master warning: Not using cache on failed catalog err: Could not retrieve catalog; skipping run err: Could not send report: Server hostname 'puppet' did not match server certificate; expected master If I specify the certname as the server (with corresponding hosts entry) I get: # puppet agent --test --server master info: Retrieving plugin err: /File[/var/lib/puppet/lib]: Could not evaluate: Could not retrieve information from environment production source(s) puppet://master/plugins info: Caching catalog for master info: Applying configuration version '1321805956' notice: Finished catalog run in 0.05 seconds Which is success of a sort, that source error will bite me later when I'm applying manifests. I've tried a couple of other variations with using the ec2 private hostname and gotten mixed results. I'd like to avoid setting server = 'x' and use dns/hosts to control what 'puppet' resolves to in order to decide which server (plays easier with availability zones, etc)

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• Prevent Cisco VPN from interrupting home networking

  - by jkohlhepp

  I just got a new laptop, and for the most part have left its settings alone. Today I was trying to get some sharing going between my desktop and the laptop. Both machines are connected to the same wireless network and both machines consider that network to be a Home network. Both are running Win7 Home Premium. It seems like my laptop is aware of my desktop on the network. It can ping it by IP or by computer name. When I go to Network from the laptop, I can see the desktop in the list of computers. However, my desktop cannot ping the laptop, nor can it see it within Network. My desktop has a Homegroup set up, but my laptop says "There is currently no homegroup on the network". I do have network discovery turned on for both machines. Why can my desktop not "talk" to my laptop but it works the other way around? Update: Disabling the Windows Firewall on the laptop somewhat fixes the problem. With it disabled, my desktop can ping my laptop, but still my laptop can't see the homegroup. Also, it can ping via hostname, which resolves to IPv6, but can't ping via the IPv4 address. Obviously I'd rather not leave my firewall disabled, so I need a more specific fix. Update 2: Aha! It is the Cisco VPN software I was running to connect to work computers. Once I disconnected and exited from that, the two PCs seemed to be talking normally and the homegroup was visible to the laptop. So now my question has morphed: how can I prevent Cisco VPN from interrupting my home networking?

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• Need a VM for running a PHP Sandbox

  - by Phani

  I am working on Web application honeypot. It collects PHP files it receives (as part of an RFI attack) and runs them in order to return the result back to the attacker. The aim is to coax the bad guy into going further into his attack. Based on the answers to my SO question, I am looking at using VMs for running the PHP Sandbox. The honeypot itself consists of Python code and will be running in a Linux environment (preferably Ubuntu-like). These are some of the requirements: The VM should be a light weight as possible. We are going to distribute the code around and many people are going to use the VM along with the Python based honeypot. So, the installation and configuration should not be too difficult. The guest system would also be Linux as we are going to distribute the VM image around. It should be possible for the Python code outside to talk to the guest system. It would be passing on the PHP file to the guest system and will get the output result from it. It should be possible to automate the initial configuration of the VM (such as allocation of RAM etc.) I would like to randomize these settings in order to make the sandbox less 'fingerprintable' I have looked at OpenVZ and KVM so far. Are there any other VMs that I might look at? What do you recommend?

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• DIY NAS - links for Instructions

  - by Kaushik Gopal

  Good folk of SU, I'm planning to build a NAS (Network Access Storage). I'm planning to do it cheap (:read Old PC Config + Open source software). I was looking for good DIY links . Before you shoot this down as a Repost, I'm only looking for good links containing detailed instructions for setting up a NAS. I did a fair bit of searching and found these links (so please suggest others. While these links are great they delve more on the hardware side, i'm looking for more instructions in the software side). For the sake of the interwebs: Ubuntu: http://snarfquest.com/wiki/index.php/Setting_up_a_Home_NAS http://www.smallnetbuilder.com/content/view/27962/77/ http://jonpeck.blogspot.com/2006/11/how-to-configure-80-fileserver-in-45.html FreeNAS http://www.smallbusinesscomputing.com/webmaster/article.php/3719706 http://www.codeproject.com/KB/system/homemade_nas.aspxhttp://www.codeproject.com/KB/system/homemade_nas.aspx There was one at rubbervir.us that everyone points to, but apparently the site has gone down. A couple of other queries: Is Printer/Scanner sharing a possibility with NAS devices? Many talk of torrent support with NAS Devices, a little more light on this? Does this mean, an auto download of torrent through a feed into NAS, or just support for storing Torrent download files onto the NAS(don't see the difference between the latter and a normal file tranfer)

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• VPN Device behind router/firewall

  - by David Steven

  ROUTER A: Peplink 310 serving as the gateway/router/firewall at one location. ROUTER B: Linksys RV082 serving as the gateway/router/firewall at another location. I want to VPN these two locations together. The Peplink has a PPTP server and has proprietary site-to-site vpn if you had another peplink device. The Linksys has an IPsec vpn server. VPN A: I also have another spare linksys rv082. I'm trying to setup the other rv082 (VPN A) behind the peplink (ROUTER A) and get VPN A to talk to ROUTER B. I setup VPN A with a lan ip address and plugged one of it's LAN ports into the LAN. I was able to get to it's web interface fine. On ROUTER A I one-to-one nat mapped one of our public ip's to the LAN IP for VPN A. I opened TCP 50-51 and UDP 500 to VPN A. I configured the VPN settings on VPN A to connect to ROUTER B. I did the opposite for ROUTER B. But the vpn doesn't connect. Then I tried pluging VPN A's wan port into the lan, and gave it another LAN IP. I thought perpahs VPN A didn't want to send VPN traffic out over the LAN and wanted do send it over it's WAN. The vpn still doesn't connect. It what I'm trying to do even possible?

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• Multiple vlans access to shared pbx system

  - by Matt

  I'm new to networking and was looking for some assistance. First off I'm using packet tracer to diagram my scenario as I will be receiving my equipment next week to deploy. Hardware to be used: 2 catalyst 3560 switches all connect to a sonic wall router I have two companies that work in the same office space. I need to keep these companies separate on their own vlan. They will however need to share the phone system. (Packet tracer file uploaded to give those who have the time to see what I put together.) http://dl.dropbox.com/u/86234623/network%20build.pkt Here is my current test scenario: on switch 0 I have: company A on vlan 2 computers 172.16.1.100 and 101 255.255.0.0 FA0/10 FA0/11 company B on vlan 3 computers 172.16.2.102, 255.255.0.0 FA0/12 PBX on a trunk port 172.16.0.5, 255.255.0.0 FA0/5 trunk port on FA0/1 to connect the switches on switch 1 I have: company A on vlan 2 computers 172.16.1.102, 255.255.0.0 company B on vlan 3 computers 172.16.2.100 and 101, 255.255.0.0 trunk port on FA0/1 to connect the switches I can ping the respective computers on the same vlan but cant ping company A to B which is what I want. However neither company can talk (ping) the PBX. Here are the commands I used to configure what I have: switch 0 en conf t vlan 2 name A vlan 3 name B int fa0/10 switchport mode access switchport access vlan 2 int fa0/11 switchport mode access switchport access vlan 2 int fa0/12 switchport mode access switchport access vlan 3 int fa0/5 switchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan 1-3 int fa0/1 (to connect the switches) switchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan 1-3 Switch 1 en conf t vlan 2 name A vlan 3 name B int fa0/10 switchport mode access switchport access vlan 3 int fa0/11 switchport mode access switchport access vlan 3 int fa0/12 switchport mode access switchport access vlan 2 int fa0/1 (to connect the switches) switchport trunk encapsulation dot1q switchport mode trunk switchport trunk allowed vlan 1-3

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• Outlook slow to open attachments

  - by Alistair McMillan

  When a colleague tries to open attachments in her email (Outlook 2003 talking to an Exchange 2007 server) they talk ages to open. The files are relatively small, all less than 1MB. We've tried creating a new Windows profile for the user and tried creating new Outlook profiles, however that hasn't made any difference. And we've tried accessing her account from someone else's PC, and the attachments open immediately there. The only thing that might provide a clue is that Process Monitor shows Outlook on her PC trying to write the file to a folder within the user's "Temporary Internet Files" folder with FAST I/O DISALLOWED errors. Can't find a lot of useful information on that message online though. What causes the FAST I/O DISALLOWED errors? And would that make opening attachments so incredibly slow that opening a < 1MB file can take a matter of minutes? UPDATE: Discovered that this isn't just an issue with Outlook. Other files being accessed over the network show the same FAST I/O DISALLOWED errors in Process Monitor. The problem is just more noticeable with Outlook, because although other applications take a while to open files it isn't a matter of minutes.

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• How to Move SMS from iPhone to Mac?

  - by seda16

  SMS is the main form to Communicate with others, you would saved many messages on your iPhone. Well, there're many reasons you need to backup your iPhone sms to the Mac. For example, your family or friends have sent you some important and you want to save them on your iPhone in case you delete them by accident, or you just need to backup your sms for other use. So today let's talk about how to move sms from iPhone to Mac. It would be very easy if you use an app to help you, I always use the iPhone to Mac transfer on Amacsoft to copy sms from iPhone to Mac. Now let me tell you how to use this great app: Step 1:Connect iPhone to Mac First of all, you need to install and launch the iPhone to Mac transfer, then connect your iPhone to Mac. The iPhone to Mac transfer would recognise your iPhone automatically. And all information of your iPhone will be shown on an interface. Step 2:Select sms and Start the Export Now you can see many choice on the left, find "SMS" and click it, all sms on your iPhone will be listed on the right. Select and check those you want to move, then just click "Export" on the top to start the transfer. Wait just a few a minute the transfer will be done. Great! You have finish the transfer now, it's really very easy, right? I believe it won't be a problem if you want to transfer your sms from iPhone to Mac. By the way you can also use this Amacsoft iPhone to Mac transfer to move other kind of files , like photos, songs etc. If you're a windows user, you can use iPhone to PC transfer on this web to move sms from iPhone to your PC just with the same steps, good luck!

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• Windows 7 disk backup and clone for deployment to multiple systems

  - by gregmac

  I'm in the process of deploying some new PCs (there's only 8), all identical hardware. What I'd like to do is install Windows 7 (64bit), join to domain etc, install a bunch of other software, and then clone that drive to multiple other machines. I'd also like to be able to use it as a backup image, so the machine can be restored back to that image at some future date. I understand this involves at least sysprep, but I am confused after reading some tutorials that talk about using Windows Automated Installation Kit, or hacks with the registry and custom-build batch files. This process seems overly complex to me: I did something similar 10+ years ago, and and don't remember it being this bad. Surely things have improved in a decade? There's also some products that involve having network servers running deployment software, network boot, etc etc.. this is way more than I want to set up. My systems are all identical hardware. Is there a simplified way to clone PCs? Preferably (since I'm a lazy developer, and not an IT admin) I'd like to find some off-the-shelf product that I can run after I get the machine setup, that will spit out a bootable DVD I can run on all the other systems, which will boot up, ask for a computer name, join it to the domain, and that's it. Does such as product exist?

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• How can I cache a Subversion password on a server, without storing it in unencrypted form?

  - by Zilk

  My Subversion server only provides access via HTTPS; support for svn+ssh has been dropped because we wanted to avoid creating system users on that machine just for SVN access. Now I'm trying to provide a way for users to cache their passwords for a while, without leaving them stored on the filesystem in unencrypted form. This is no problem for Gnome or KDE users, because they can use gnome-keyring and kwallet, respectively. IIRC, TortoiseSVN has a similar caching mechanism, too. But what about users on a non-GUI system? Some context: in this case, we have a development/testing server where one project has been checked out into the Apache htdocs directory. Development for this project is almost complete, and only minor text/layout changes are performed directly on this server. Nevertheless, the changes should be checked into the repository. There's no kwallet and no gnome-keyring on this system, and the ssh-agent can't help because the repository is accessed via https instead of svn+ssh. As far as I know, that leaves them the choice of entering the password every time they talk to the SVN server, or storing it in an insecure way. Is there any way to get something like what gnome-keyring and kwallet provide in a non-GUI environment?

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• 550 Forged HELO with postfix on debian lenny

  - by Martin Ahrer

  I'm running postfix on a debian lenny system. sending mail in general works without any problems. however some recipent mail systems return an error and I can't get a clue what is causing the problem. So far I suspect that this is either postfix setup itself or the reverse dns resolution. The mail server is running on a virtual server from my service provider. running the command hostname is returning my.domain however running host <ip-address> is returning some alias from the virtual server system. now i'm not quite sure if that is causing my problem???? The mail system <recipient-mail>: host mx0.recipient.domain[xxx.xxx.xxx.xxx] refused to talk to me: 550 Forged HELO: you are not my.domain Reporting-MTA: dns; my.domain X-Postfix-Queue-ID: 6A1135B08002 X-Postfix-Sender: rfc822; [email protected] Arrival-Date: Tue, 13 Apr 2010 17:50:36 +0200 (CEST) Final-Recipient: rfc822; recipient-mail Action: failed Status: 5.0.0 Remote-MTA: dns; mx0.recipient.domain Diagnostic-Code: smtp; 550 Forged HELO: you are not my.domain

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• What should I do to make sure that IIS does not recycle my application?

  - by AngryHacker

  I have a WCF service app hosted in IIS. On startup, it goes and fetches a really expensive (in terms of time and cpu) resource to use as local cache. Unfortunately, IIS seems to recycle the process on a fairly regular basis. So I am trying to change the settings on the Application Pool to make sure that IIS does not recycle the application. So far, I've change the following: Limit Interval under CPU from 5 to 0. Idle Time-out under Process Model from 20 to 0. Regular Time Interval under Recycling from 1740 to 0. Will this be enough? And I have specific questions about the items I changed: What specifically does Limit Interval setting under CPU mean? Does it mean that if a certain CPU usage is exceeded, the application pool will be recycled? What exactly does "recycled" mean? Is the application completely torn down and started up again? What is the difference between "Worker Process shutdown" and "Application Pool recycling"? The documentation for the Idle Time-out under Process Model talks about shutting down the worker process. While the docs for Regular Time Interval under Recycling talk about application pool recycling. I don't quite grok the difference between the two. I thought the w3wp.exe is the worker process which runs the application pool. Can someone explain the difference to the application between the two? The reason for having IIS7 and IIS7.5 tags is because the app will run in both and hope the answers are the same between the versions. Image for reference:

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• connect server to server on secondary NIC

  - by microchasm

  Hi, I have a CentOS box with multiple NIC's running Apache. I also have another box running RHEL that will be the MySQL server. I'm trying to use the secondary NIC on the Apache box to connect directly to the MySQL server, but so far no luck. I want to isolate the MySQL box as much as possible which is why I'm going for a direct connection as opposed to running through a switch. I have a crossover cable running between them. IP configs: Apache box eth0 [to lan] ip addr: 192.168.200.100 netmask: 255.255.0.0 gateway: 192.168.111.1 eth1 [to mysql] ip addr: 192.168.200.101 netmask: 255.255.0.0 gateway: [blank] MySQL box eth0 [to apache] ip addr: 192.168.200.203 netmask: 255.255.0.0 gateway: 192.168.200.201 The rest of our network is on 192.168.111.0/24 subnet. Ping only returns Destination Host Unreachable. I've tried various variations of this setup (including straight through cable), and I can't seem to get them to talk to each other. Any help appreciated.

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• Rails/Mongo across multiple different geo-regions

  - by wmarbut

  I have a system that by necessity requires physical presence in three or more different locations and I need advice on structuring in such a way that my database stays replicated in a timely manner without horrible latency. I've seen mysql access and replication be incredibly slow when the application server was trying to talk to a node that wasn't physically collocated. In this case I am using mongodb. The stack is linux/passenger/ruby/rails/mongodb. The database is write heavy and read light. The infrastructure is Amazon EC2 The application layer must be physically located in 3 or more different locations. I can't justify this requirement further than it is a requirement. The database, however needn't be located in more than one location if it can be written to quickly from other locations. From reading mongo's documentation, mongo replication seems like more of a candidate than sharding b/c my datastore is not huge. However I don't see anything that addresses the issue of speed for servers communicating across large distances with potentially high latency.

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