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  • Does Entity Framework currently support custom functions in the Where clause?

    - by André Pena
    Entity Framework currently supports table valued functions and custom functions defined in the SSDL, but I can't find any example of it being used as a criteria, in the where clause. Example: var query = this.db.People; query = query.Where(p = FullText.ContainsInName(p.Id, "George")); In this example, ContainsInName is my custom function that I want to be executed in the where clause of the query. Is it supported?

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  • Varnish 3.0.2 and ISPConfig 3.0.4

    - by Warren Bullock III
    I followed the tutorial The Perfect Server - Ubuntu 11.10 [ISPConfig 3] here. I'm running an Ubuntu 11.04 (Natty Narwhal) server with 1024 RAM on Rackspace. I've gone through and updated to ISPConfig 3.0.4. Everything has been working great up to now when I decided to try and install Varnish. Initially I did an install of Varnish by issuing: apt-get update apt-get upgrade apt-get install varnish Apparently the version that was installed was Varnish 2.x so I went back and added the repositories for packages provided by varnish-cache.org curl http://repo.varnish-cache.org/debian/GPG-key.txt | apt-key add - echo "deb http://repo.varnish-cache.org/ubuntu/ lucid varnish-3.0" >> /etc/apt/sources.list apt-get update apt-get install varnish This updated my version of Varnish to 3.0.2 I then proceeded to make the following changes: vim /etc/default/varnish change DAEMON_OPTS to port 80: vim /etc/apache2/ports.conf NameVirtualHost *:8000 Listen 8000 vim /etc/apache2/sites-available/default <VirtualHost *:8000> vim /etc/apache2/sites-available/ispconfig.vhost Listen 8080 NameVirtualHost *:8080 <VirtualHost _default_:8080> I then proceeded to set my other vhosts to use 8000 (the apache2 port) so with all this set I reset both Apache2 and Varnish to test. I used Firebug in Firefox 11.0 The output from what I see doesn't seem to indicate that Varnish is working completely correct: First of all I see: X-Varnish 1644834493 but I've heard that unless you have two timestamps side by side than it's probably not working correctly so for example I was thinking I might see something like: X-Varnish 1644834493 1644837493 Also if I noticed this in the output which seems to be inconstant: X-Drupal-Cache MISS There are times when it will say HIT as well.... So the question here that I have is I think Varnish is partially working, however, why don't I see two timestamps on X-Varnish like I'm thinking I should and does the output of the screenshot I have look correct? If Varnish isn't working can someone tell me what I might being doing wrong? Thanks in advance.

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  • Troubleshooting PXE-E11: ARP Timeout error under VMware ESXi 4 and HPSA 7.8

    - by warren
    I am running HP Server Automation v7.8 in a lab environment on VMware ESXi, managed via vSphere 4. On the same host I have several small VMs for OS provisioning testing (512MB RAM, 10GB hdd, one NIC on the same vSwitch that HPSA is running on). DHCP is configured to hand-out addresses in the 192.168.10.151-200 range. On boot of the VM, it receives an IP (eg 192.168.10.198) within seconds. However, after it receives its IP, a PXE-E11: ARP Timeout error occurs in trying to boot from the DHCP server. I do not know if this is a HPSA-specific error, as I have seen reports of the PXE-E11 error on various forums. Proposed solutions I have seen so far (changing VLAN settings, for example) have not been applicable to my environment. Are there any pointers/troubleshooting steps that can be taken to resolve this?

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  • Oops, no RSA or DSA server certificate found for 'server.host.name:0'?

    - by Scott Warren
    I'm setting up a new web server that hosts a dozen virtual hosts on Ubuntu 12.4 using Apache 2.2.22 with one config file per site. I created all the configuration files all at once and ran a2ensite * to enable them all at once. When I reloaded the configuration it failed and after restarting apache I found the following error message in my error.log: Oops, no RSA or DSA server certificate found for 'server.host.name:0'?! Most of the results for this error message are years old that don't fix the problem or are bugs that have been fixed https://issues.apache.org/bugzilla/show_bug.cgi?id=31709

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  • Using SSL on slapd

    - by Warren
    I am setting up slapd to use SSL on Fedora 14. I have the following in my /etc/openldap/slapd.d/cn=config.ldif: olcTLSCACertificateFile: /etc/pki/tls/certs/SSL_CA_Bundle.pem olcTLSCertificateFile: /etc/pki/tls/certs/mydomain.crt olcTLSCertificateKeyFile: /etc/pki/tls/private/mydomain.key olcTLSCipherSuite: HIGH:MEDIUM:-SSLv2 olcTLSVerifyClient: demand and the following in my /etc/sysconfig/ldap: SLAPD_LDAP=no SLAPD_LDAPS=yes In my ldap.conf file, I have BASE dc=mydomain,dc=com URI ldaps://localhost TLS_CACERTDIR /etc/pki/tls/certs TLS_REQCERT allow However, when I connect to the localhost, ldapsearch returns the following: ldap_initialize( <DEFAULT> ) ldap_create Enter LDAP Password: ldap_sasl_bind ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP localhost:636 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 127.0.0.1:636 ldap_pvt_connect: fd: 3 tm: -1 async: 0 TLS: loaded CA certificate file /etc/pki/tls/certs/978601d0.0 from CA certificate directory /etc/pki/tls/certs. TLS: loaded CA certificate file /etc/pki/tls/certs/b69d4130.0 from CA certificate directory /etc/pki/tls/certs. TLS certificate verification: defer TLS: error: connect - force handshake failure: errno 0 - moznss error -12271 TLS: can't connect: . ldap_err2string ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1) What do I have incorrect?

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  • procmail issue - splitting delivery of one address based on destination domain

    - by warren
    I use procmail to handle some serverside mail processing. I am trying to setup one email address on a server that support multiple domains (in the example below, domain.net and domain.com). I want mail sent to [email protected] to go to bob and mail sent to [email protected] to go to sara. VERBOSE=off LOGFILE=/dev/null :0 * .domain.net bob :0 * .domain.com sara The above recipe seems to work quite well in that it catches incoming mail to domain.net and forwards it to bob. However, instead of forwarding mail to domain.com to sara, it creates a file in /home/user called sara. What am I doing wrong on this?

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  • Problem with shared ssh keys

    - by warren
    Following the process I've used in other environments (http://www.trilug.org/pipermail/trilug/Week-of-Mon-20080602/054712.html), I've tried setting-up shared keys between my Mac and my CentOS 4 webserver. I've seen the same problem with my older Ubuntu 7.10 workstation trying to connect via keys to the same webserver. I have tried both dsa and rsa keytypes (sshkeygen -t <type>). The sshd_config file on my webserver seems to be allowing key-based logins: RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile .ssh/authorized_keys And my .ssh/authorized_keys has my dsa and rsa keys added. Where should I be looking for what to change next to make key-based logins "Just Work™"? Is it related to the line #UseDNS yes and sshd is trying to do a reverse-lookup on my IP, but cannot because it's NAT'd?

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  • Since updating to today's version of Skype on Win8, Skype won't even log in

    - by Warren P
    I am using the desktop (win32 not appstore) Skype on Windows 8. I accepted an auto-update today which now will not let me log into skype at all. I wiped out the AppData\Roaming\Skype folder because that's how you get Skype back in the past when it has gone stupid, but that didn't help either. I do not get any error message, just the circular progress indicator that lasts forever. (Okay, so far it's been 30 minutes. It may eventually time out yet.) Other ideas please? I tried the Windows 8 App Store Skype app (WinRT), which I hate, I guess I'll go back and install that for now. Update Skype 6.0.126 seems to be completely broken on my Win8 machine.

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  • Outlook 2010 hung on updating outlook.com email account

    - by warren
    For the past week, through restarts of Outlook, and even a bounce of my machine, Outlook has been hung synchronizing my outlook.com account, after having moved messages from a different email inbox into the outlook.com inbox. The old account does not have the moved message any more (those synched-out correctly). The new account does not have the moved messages when acessing via the webui - ie, they are stuck in just Outlook. My problem? I need to reimage this laptop for a friend I need Outlook to finish syncing all those messages out to the hosted email How can I force this to happen?

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  • Linksys/Cisco Small Business SRW-Series (ie SRW248G4) - Overcoming the Limitations

    - by Warren P
    We just purchased a Cisco/Linksys SRW 248G4 switch to try it out. We have always had unmanaged switches before, and this is our first "somewhat managed" switch. So far the major limitations are: Only Internet Explorer 6 (manual says IE 5.5!) works for the web interface SSH exists but is not practically useable because the only key length that is supported is no longer even used by most modern SSH installs. (I get the error "RSA modulus too small" in openssh 4.x/5.x) This is with the latest firmware revision, I believe, although Cisco's website does not actually tell you what version you're downloading. All in all, I think, they must be trying to tell me that if I want a good-quality switch, I shouldn't buy these SRWs and should buy a Dell or an HP ProCurve, or save up my pennies, and buy a Catalyst. The question here, then, at long last: Has anyone gotten the web-browser to work via some IE 7 or IE 8 compatibility mode settings or used another browser (Opera? KDE/Safari/WebKit?) and spoofed IE6? Is there any way to get the SSH key length upgraded? I'm guessing a 0% chance of a yes on that last one. I found an XP machine, used telnet (via PuttyTel.exe) and IE6 to set this up, and I doubt we'll have to touch it again. Which is fine with us. But it would be nice if I could administer this thing from either (a) a linux box, or (b) my primary desktop which is windows 7. It looks like XPMode with IE6 on the virtual XP machine may be my only way to administer this type of switch via the web.

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  • Is it possible to rate-limit an scp/sftp/rsync/etc transfer from the command-line? ie, manual QoS on

    - by warren
    Specifically, I am looking to rate-limit an scp or sftp session (or other arbitrary network call) in the call itself. For example, let's say I want to copy 100MB to one server, and 1GB to another. I'd like to be able to run both of these at the same time, but maintain a QoS for "normal" computer usage - somewhat similar to how you can rate-limit bittorrent. Is there a way to do this without touching the networking hardware? I'm envisioning something akin to: magic-qos-tool 'scp file user@host:/path/to/file' Or.. scp -rate 40kbps file user@host:/path/to/file

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  • Problem with shared ssh keys

    - by warren
    Following the process I've used in other environments, I've tried setting-up shared keys between my Mac and my CentOS 4 webserver. I've seen the same problem with my older Ubuntu 7.10 workstation trying to connect via keys to the same webserver. I have tried both dsa and rsa keytypes (sshkeygen -t <type>). The sshd_config file on my webserver seems to be allowing key-based logins: RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile .ssh/authorized_keys And my .ssh/authorized_keys has my dsa and rsa keys added. Where should I be looking for what to change next to make key-based logins "Just Work™"? Is it related to the line, #UseDNS yes and sshd is trying to do a reverse-lookup on my IP, but cannot because it's NAT'd?

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  • Is Windows Server 2008R2 NAP solution for NAC (endpoint security) valuable enough to be worth the hassles?

    - by Warren P
    I'm learning about Windows Server 2008 R2's NAP features. I understand what network access control (NAC) is and what role NAP plays in that, but I would like to know what limitations and problems it has, that people wish they knew before they rolled it out. Secondly, I'd like to know if anyone has had success rolling it out in a mid-size (multi-city corporate network with around 15 servers, 200 desktops) environment with most (99%) Windows XP SP3 and newer Windows clients (Vista, and Win7). Did it work with your anti-virus? (I'm guessing NAP works well with the big name anti-virus products, but we're using Trend micro.). Let's assume that the servers are all Windows Server 2008 R2. Our VPNs are cisco stuff, and have their own NAC features. Has NAP actually benefitted your organization, and was it wise to roll it out, or is it yet another in the long list of things that Windows Server 2008 R2 does, but that if you do move your servers up to it, you're probably not going to want to use. In what particular ways might the built-in NAP solution be the best one, and in what particular ways might no solution at all (the status quo pre-NAP) or a third-party endpoint security or NAC solution be considered a better fit? I found an article where a panel of security experts in 2007 say NAC is maybe "not worth it". Are things better now in 2010 with Win Server 2008 R2?

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  • DNS Does Not Register at Off-site Locations

    - by Russ Warren
    First of all, let me give you the specifics of our setup: Windows Small Business Server 2008 Domain w/ all applicable updates on the DC The DC does DHCP for the main site The DC does DNS for all sites 3 sites including our headquarters where the DC is located All sites are connected through OpenVPN SSL tunnels terminated by an Untangle box at each site The 2 remote sites us the Untangle box as a DHCP server for their subnet, which assigns the DC as the primary DNS server Collection of Windows XP and Windows 7 workstations connected to the domain Here's the issue: All of the workstations at the main site register with the DNS server on the domain controller fine. As they grab an IP from the DHCP server, it updates the DNS server with the new host record. I have 2 systems (each at different remote sites) that fail to register with the DNS server. I've attempted the following troubleshooting steps: Confirmed the network adapter is using the DC as a DNS server Confirmed 2-way traffic is possible between DC and workstation Verified the "Register with DNS server" setting was checked in the adapter properties Attempted ipconfig /registerdns and received no errors For the time being, I have setup a DHCP reservation for these systems and manually created a host record. This seems to work fine, but I need a solution for any new systems that go out there.

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  • What service do you use for music on hold?

    - by Russ Warren
    This may not be a sysadmin question for some, but it is definitely a hurdle I have to jump as the sysadmin for my company. We recently rolled-out a company wide VoiP system (Switchvox, to be exact) that has come preloaded with some royalty-free music on hold. Our customers have been complaining that the music on hold sounds like "funeral music." This may be the case (although I wouldn't want it played at my funeral), but it is all we have and we aren't willing to be sued over using music that isn't properly licensed. So, that brings me to the question asked in the title -- what and/or how do you provide decent music on hold? I'm assuming many people here use a PBX that allows customized music, so this has to apply to many of you. We've been looking at some sites that allow you to download royalty-free music for a one-time fee, but the music seems...lame. Something like a one-year subscription from ibaudio.com seems to be the best bet so far. Have you been able to discover something a little more mainstream for a decent licensing fee? Thank you. EDIT: Our PBX allows the playback of MP3 and OGG files, but does not allow streaming of a live audio source, Internet-based or otherwise. It also does not allow the use of a "line-in" source such as a CD player or radio. Don't let this stop you from sharing your setup, though. I'm interested in hearing what everyone uses!

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  • Windows pysical server provisioning question with HPSA 7.8

    - by warren
    I have a physical server that I am trying to provision Windows to. At 58% of the way through copying files form the Core to the target server, the process hangs with either a samba time-out or an error indicating that %path%\system32\ntoskrnl.exe is missing or corrupt. I can build a VM on the same subnet with the same media (merely a different profile to catch the different unattend.txt file) with no issues. I can also provision RHEL5 to this server with no issues. The buildmgr logs indicate that eventually the job is timing-out. Samba logs show that connections are made, and then eventually closed - about the time that the build process times-out. Any ideas on where to look next?

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  • RHEL 5.1 loses changes to /etc/hosts above lines for `localhost`

    - by warren
    Is there a known fix (other than upgrading from 5.1) to fix /etc/hosts from being replaced on reboot? I discovered this behavior when running HP's Server Automation tools. HPSA sets-up a variety of local aliases for itself to use for different components to communicate wit each other. However, after reboot, the hosts files is reverted to a quasi-plain-vanilla version: all lines above the entry for localhost are removed. Manually re-adding those needed lines below the entries for localhost works, but is non-ideal. Is there a fix for this behavior? I do realize that RHEL 5u1 is not officially supported for HPSA 7.8, but the hosts file resetting is not good for a variety of other reasons, too.

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  • Displaying what `history` line is current in bash prompt

    - by warren
    What formatting character needs to be added to a bash prompt to indicate the most recent history item run (or the current command number if 1 could be added to the last history entry)? My prompt string is this: \[\033[33m\][\u@\[\033[1;31m\]\h]\]\033[0m {\W}\n\033[1;34m\]\w\]\033[0m > Gives me the following display: [user@host] {~} ~ > User is in yellow, and the host is in red. The entry in brackets is the current directory, and the entry before the greater-than sign is the full pwd. Can I append to the first line the current command number so I would have something like the following: [user@host] {~} (nnn) ~ > where (nnn) is the current (or just processed) command number, as shown when running history?

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  • Word list sources

    - by warren
    I am looking for a source of nouns, adverbs, adjectives, and verbs in several languages. I'd like the lists to already be split apart, and not have to go through the OED (and non-English equivalents) by hand re-creating said lists. I don't really care about definitions, and I understand some words can be multiple parts of speech - that's fine - words like "many" could be a noun or adjective, and can appear in both lists. Does anyone here know of such a source? If not, might someone be able to point me in the right direction?

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  • Installing Trac on Windows under Apache 2.2?

    - by Warren P
    Trac is a python-powered bug-tracking and project-management app. According to Trac's wiki, there are several options for installing Trac, a standalone server (tracd), or under a dedicated webserver using one of these options: FastCGI - Not available on windows. mod_wsgi - No version of mod_wsgi available for Apache 2.2.22 and Python 2.7.3-amd64 that actually runs on my system! mod_python - no longer recommended, as mod_python is not actively maintained anymore) CGI -should not be used, as the performance is far from optimal) That leaves me with zero ways to run Trac on Windows. Apache 2.2.22 with ModWSGI loading, crashes the Apache2.2 service on startup without any error logs. Disabling the line in the apache configuration to load mod_wsgi restores sanity. I just want an installation of Trac on windows with Authentication enabled. I am unable to get authenetication to work using basic tracd like this: tracd -p 8000 --basic-auth="c:\tmp,c:\tmp\Passwords.md5.txt,mycompany" c:\tmp\RootFolder And I am unable to get Mod_WSGI installed. I'm going to keep trying to figure out a combination that works, I suspect I should have installed 32 bit python instead of 64 bit python, to start with. Did I do wrong to install Python 64 bit 2.7.3? I tried again with all 32 bit components, and still can't get MOD_WSGI to work with apache 2.2.22. I'm going to try to compile mod_wsgi myself with Visual C++ Express 2010, but it seems to me that it ought to be easier than this to get Trac running on windows, with authentication. Is there a way to run Trac on Windows, under Apache, with authentication? The last "Trac on windows" article died in 2008, leaving only this internet archive link for "Trac on windows" setup.

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  • How-to: determine 64-bitness of Windows? [closed]

    - by warren
    Possible Duplicate: Tell the version of Windows XP (64-bits or 32-bits) Is it possible to determine whether a given installation of Windows is 32- or 64-bit? From right-clicking on My Computer, and selecting Properties, it appears that such information is not readily available. Typing ver at the command prompt also doesn't seem to return anything about the nature of the platform in which it is installed. Under Linux, I'd use uname -a to find out what kernel was running. Is there an analog on Windows?

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