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• RHEL 5/CentOS 5 - sshd becomes unresponsive

  - by ewwhite

  I have a number of CentOS 5.x and RHEL 5.x systems whose SSH daemons become unresponsive, preventing remote logins. The typical error from the connecting side is: $ ssh db1 db1 : ssh_exchange_identification: Connection closed by remote host Examining /var/log/messages after a forced reboot shows the following leading up to the restart: Dec 10 10:45:51 db1 sshd[14593]: fatal: Privilege separation user sshd does not exist Dec 10 10:46:02 db1 sshd[14595]: fatal: Privilege separation user sshd does not exist Dec 10 10:46:54 db1 sshd[14711]: fatal: Privilege separation user sshd does not exist Dec 10 10:47:38 db1 sshd[14730]: fatal: Privilege separation user sshd does not exist These systems use LDAP authentication and the nsswitch.conf file is configured to look at local "files" first. [root@db1 ~]# cat /etc/nsswitch.conf # # /etc/nsswitch.conf # passwd: files ldap shadow: files ldap group: files ldap hosts: files dns The Privilege-separated SSH user exists in the local password file. [root@db1 ~]# grep ssh /etc/passwd sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin Any ideas on what the root cause is? I did not see any Red Hat errata that covers this.

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• iDrac6 Email Alert Problem

  - by theotherreceive

  I'm trying to setup the email alerts on the iDrac6 Express on an R610, but when i run the test it just says "Sending Failed". Platform Event Filter Alerts are enabled. The network setup is: 192.168.1.22/255.255.255.0 Gateway: 192.168.1.1 DNS: 192.168.1.1 SMTP: 192.168.1.1 Exim is listening 192.168.1.1 and is set to allow mail on 192.168/16. There's nothing in the exim logs about connections from the drac. Is there a way to get the drac to give more information about why it's sending failed?

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• IIS SmtpSVC - Adding remote domains on the fly

  - by Andrej Pintar

  Since I am using SMTPSVC from IIS to send all mail out I have noticed some domains that reject mail regarding LFs and similar SMTP day to day basis problems. So I mostly re route these domains by using smarthosts. Now I aslo read that on IIS7 or most of them when you add a remote domain to domains you must restart SMTPSVC to take effect. I also enabled METABASE editing. So I also hoped that this will help me add remote domains on the fly. But it's not working. Should I use another SMTP: -hmailserver or similar to route DOMAINS by smarthost. We used a smarthost configuration before but ISP smarthost gets a lot on RBL Blacklist so mail comes back. Since DNS MX direct sending is more work because of troublesome domains now I got more work to monitor SMTP logs. Thank you in advance.

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• PHP Mail() to Gmail = Spam

  - by grantw

  Recently Gmail has started marking emails sent directly from my server (using php mail()) as spam and I'm having problems trying to find the issue. If I send an exact copy of the same email from my email client it goes to the Gmail inbox. The emails are plain text, around 7 lines long and contain a URL link in plain text. As the emails sent from my client are getting through fine I'm thinking that the content isn't the issue. It would be greatly appreciated if someone could take a look at the the following headers and give me some advice why the email from the server is being marked as spam. Email from Server: Delivered-To: [email protected] Received: by 10.49.98.228 with SMTP id el4csp101784qeb; Thu, 15 Nov 2012 14:58:52 -0800 (PST) Received: by 10.60.27.166 with SMTP id u6mr2296595oeg.86.1353020331940; Thu, 15 Nov 2012 14:58:51 -0800 (PST) Return-Path: [email protected] Received: from dom.domainbrokerage.co.uk (dom.domainbrokerage.co.uk. [174.120.246.138]) by mx.google.com with ESMTPS id df4si17005013obc.50.2012.11.15.14.58.51 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 15 Nov 2012 14:58:51 -0800 (PST) Received-SPF: pass (google.com: domain of [email protected] designates 174.120.246.138 as permitted sender) client-ip=174.120.246.138; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 174.120.246.138 as permitted sender) [email protected]; dkim=pass [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=domainbrokerage.co.uk; s=default; h=Date:Message-Id:Content-Type:Reply-to:From:Subject:To; bh=2RJ9jsEaGcdcgJ1HMJgQG8QNvWevySWXIFRDqdY7EAM=; b=mGebBVOkyUhv94ONL3EabXeTgVznsT1VAwPdVvpOGDdjBtN1FabnuFi8sWbf5KEg5BUJ/h8fQ+9/2nrj+jbtoVLvKXI6L53HOXPjl7atCX9e41GkrOTAPw5ZFp+1lDbZ; Received: from grantw by dom.domainbrokerage.co.uk with local (Exim 4.80) (envelope-from [email protected]) id 1TZ8OZ-0008qC-Gy for [email protected]; Thu, 15 Nov 2012 22:58:51 +0000 To: [email protected] Subject: Offer Accepted X-PHP-Script: www.domainbrokerage.co.uk/admin.php for 95.172.231.27 From: My Name [email protected] Reply-to: [email protected] Content-Type: text/plain; charset=Windows-1251 Message-Id: [email protected] Date: Thu, 15 Nov 2012 22:58:51 +0000 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - dom.domainbrokerage.co.uk X-AntiAbuse: Original Domain - gmail.com X-AntiAbuse: Originator/Caller UID/GID - [500 500] / [47 12] X-AntiAbuse: Sender Address Domain - domainbrokerage.co.uk X-Get-Message-Sender-Via: dom.domainbrokerage.co.uk: authenticated_id: grantw/from_h Email from client: Delivered-To: [email protected] Received: by 10.49.98.228 with SMTP id el4csp101495qeb; Thu, 15 Nov 2012 14:54:49 -0800 (PST) Received: by 10.182.197.8 with SMTP id iq8mr2351185obc.66.1353020089244; Thu, 15 Nov 2012 14:54:49 -0800 (PST) Return-Path: [email protected] Received: from dom.domainbrokerage.co.uk (dom.domainbrokerage.co.uk. [174.120.246.138]) by mx.google.com with ESMTPS id ab5si17000486obc.44.2012.11.15.14.54.48 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 15 Nov 2012 14:54:49 -0800 (PST) Received-SPF: pass (google.com: domain of [email protected] designates 174.120.246.138 as permitted sender) client-ip=174.120.246.138; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 174.120.246.138 as permitted sender) [email protected]; dkim=pass [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=domainbrokerage.co.uk; s=default; h=Content-Transfer-Encoding:Content-Type:Subject:To:MIME-Version:From:Date:Message-ID; bh=bKNjm+yTFZQ7HUjO3lKPp9HosUBfFxv9+oqV+NuIkdU=; b=j0T2XNBuENSFG85QWeRdJ2MUgW2BvGROBNL3zvjwOLoFeyHRU3B4M+lt6m1X+OLHfJJqcoR0+GS9p/TWn4jylKCF13xozAOc6ewZ3/4Xj/YUDXuHkzmCMiNxVcGETD7l; Received: from w-27.cust-7941.ip.static.uno.uk.net ([95.172.231.27]:1450 helo=[127.0.0.1]) by dom.domainbrokerage.co.uk with esmtpa (Exim 4.80) (envelope-from [email protected]) id 1TZ8Ke-0001XH-7p for [email protected]; Thu, 15 Nov 2012 22:54:48 +0000 Message-ID: [email protected] Date: Thu, 15 Nov 2012 22:54:50 +0000 From: My Name [email protected] User-Agent: Postbox 3.0.6 (Windows/20121031) MIME-Version: 1.0 To: [email protected] Subject: Offer Accepted Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - dom.domainbrokerage.co.uk X-AntiAbuse: Original Domain - gmail.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - domainbrokerage.co.uk X-Get-Message-Sender-Via: dom.domainbrokerage.co.uk: authenticated_id: [email protected]

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• How to diagnose "Internet explorer cannot display the webpage"

  - by Colen

  Our web site is working great for 99.99% of our users, but a few people (all of whom use Internet Explorer) are running into an error. Most pages on the site load fine, but for one specific page (the same page for all affected users), all they get is: Internet explorer cannot display the webpage It doesn't matter whether the page is accessed over http or https - it fails to load either way. Every other page on the site, as far as I can tell, works fine for them. Not only that, the same users can load that specific page fine in Firefox. I've checked the web server logs and I can't find any smoking guns there. The site is running IIS on Windows Server 2003. Is there any way to get IE to give the user more information than just "cannot display the web page"? There's a "More information" button, but all it tells you is to make sure that your DNS servers are working, make sure you're not working offline, etc. :(

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• My datacard goes online but doesn't gives internet access (Fedora 14).

  - by Harsh

  I am using MTS datacard. I have usb_modeswitch installed and have configured the wvdial.conf file. When I do sudo wvdial cdma, the IPs and DNS addresses are also allocated but I still cant access internet. The reply to dmesg | grep -e 'tty' -e 'modem' is: [ 0.000000] console [tty0] enabled [ 11.098238] USB Serial support registered for GSM modem (1-port) [ 11.098352] option 6-1:1.0: GSM modem (1-port) converter detected [ 11.102170] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB0 [ 11.102207] option 6-1:1.1: GSM modem (1-port) converter detected [ 11.102334] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB1 [ 11.102364] option 6-1:1.2: GSM modem (1-port) converter detected [ 11.102488] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB2 [ 11.102522] option 6-1:1.3: GSM modem (1-port) converter detected [ 11.102643] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB3 [ 11.102672] option 6-1:1.4: GSM modem (1-port) converter detected [ 11.102793] usb 6-1: GSM modem (1-port) converter now attached to ttyUSB4 [ 11.103074] option: v0.7.2:USB Driver for GSM modems Can anyone tell me what shall I do?

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• accessing a web server from the LAN and WAN

  - by jessh

  My router does not support loopback. In order to view a webpage on my server, I either have to type in the local ip (192.168.1.201), or be on another network. What are my options for making this easier? Here are some possible things: Route all web traffic through an external proxy (seems to be overkill) Run my own DNS server (where to start?!) Buy a new router that supports loopback. Surely there is another way that I can use my laptop on the LAN and the WAN by typing in my domain more easily than these solutions.

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• Migrating data from SQL Server 2000 to SQL Server 2005

  - by Muhammad Kashif Nadeem

  I have to migrate existing data which is in SQL Server 2000 to SQL Server 2005. The schema of two databases is different. For Example Locations table in SS2000 is split into two tables and has different columns. This is one time activity. After successful migration I don't need old db anymore. What is the best way to transfer data from one SQL Server to another having different schemas? I can write stored procedures to fetch data from SQL Server 2000 and insert/update tables in SQL Server 2005. What about SSIS? I don't have any experience with this and is this better to create package of SSIS because I don't need this again and need to learn it first. Thanks.

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• Domain connection shows as "unauthenticated"

  - by gareth89

  I have seen various different questions for this problem floating around but either the circumstances arent the same or the solution doesnt work so thought i would post it to see if anybody has any suggestions. Various domain PCs and laptops appear to randomly give the connection name of "lewis.local 2(Unauthenticated)" - lewis.local being our domain - and provides an exclamation mark where the network type logo is normally shown. This also appears to happen every time connecting via vpn. Our setup is: 2 servers both running windows server 2003 R2 (x32) main server has AD, DNS and DHCP installed IPv4 on approx 30 client machines (some wired, some wireless) If anybody has any thoughts on solutions i would appreciate it. I have tried removing all but AD server roles, resetting all of the systems and nothing. It doesnt prevent anything from working just like a domain connection most of the time however it is getting fustrating! Also dont know if it could have anything to do with it but the DHCP server seems to have quite a long lead time on issuing the IP address to the client.

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• Cant logon to domain over site-to-site vpn

  - by 3molo

  Tied together branch office with main office over two Cisco ASAs. The (internal) networks on either side can communicate with the other. I can ping, use the DC's DNS service and even join a domain on a new client. I can't however logon, I get the "domain controller is not available" error message on client. I find nothing peculiar in DC's event logs. Sicne it's site-to-site (with ping), it's always up so it should work. No firewall rules (except allow any any) between the two networks (of either side). Main site internal net: 10.10.10.0/24 Branch office net: 10.180.3.0/24 Am I overlooking something here? Where should I start investigating this?d

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• Why does httpd handle requests for wrong hostnames in SSL mode?

  - by Manuel

  I have an SSL-enabled virtual host for my sites at example.com:10443 Listen 10443 <VirtualHost _default_:10443> ServerName example.com:10443 ServerAdmin [email protected] ErrorLog "/var/log/httpd/error_log" TransferLog "/var/log/httpd/access_log" SSLEngine on SSLProtocol all -SSLv2 SSLCipherSuite HIGH:MEDIUM:!aNULL:!MD5 SSLCertificateFile "/etc/ssl/private/example.com.crt" SSLCertificateKeyFile "/etc/ssl/private/example.com.key" SSLCertificateChainFile "/etc/ssl/private/sub.class1.server.ca.pem" SSLCACertificateFile "/etc/ssl/private/StartCom.pem" </VirtualHost> Browsing to https://example.com:10443/ works as expected. However, also browsing to https://subdomain.example.com:10443/ (with DNS set) shows me the same pages (after SSL certificate warning). I would have expected the directive ServerName example.com:10443 to reject all connection attempts to other server names. How can I tell the virtual host not to serve requests for URLs other than the top-level one?

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• Windows 8 slow after refreshing and rebooting

  - by Dan Drews

  First, I apologize if this is in the wrong place. I use S/O a lot but not the other sites much. I have an HP Split X2 that has been very choppy as of late (takes several seconds to respond to any form of input), so I went ahead and did a system refresh. After the refresh everything ran very fast as it should, then when I went to download my old apps I needed to reboot. After rebooting, it went back to the choppiness. Does anybody have any thoughts on what this could be?

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• What value does SenderID provide over SPF and DKIM?

  - by makerofthings7

  I understand that SPF "binds" a message envelope to a set of permitted IP addresses. SenderID (with the default pra option) "binds" the message header to a set of permitted IPs in addition to the SPF logic. DKIM "binds" the from address header (and any additional header the sender chooses), and the body to a DNS Domain name I'm using the word "bind" above instead of "authorized" because it makes more sense (to me) Questions: If SPF is already verifies a message FROM in the envelope, why is there a need to check the headers? When would the need to verify the envelope (SPF) need to be different than the headers (SenderID) If I'm already verifying the headers with DKIM, why do I need SenderID? Most large companies I've checked don't disable SenderID with an explicit record. EBay is a notable example of one that does. What is the rationale for disabling SenderID "pra" processing of outbound messages?

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• MS Project - Schedule short duration tasks that stay within working hrs

  - by Dave Warwick

  I am planning a series of tests that take a couple of hours each. However, you can not split a test so I do not want the next test to begin if there is not enough time within the specified working hours of the day to complete it. Also, I would like to begin each day with a set-up period before the actual testing can begin. Is there a way to automatically begin each day with a setup period and have tasks that can not complete before the end of the specified work day defer starting until the next day?

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• Mac Mini's internet very slow, every other device fine (PC, iPhone, Xbox 360)

  - by alex

  I recently haven't used my Mac Mini for about 5 days (however it was left on). I seem to be able to connect and get great download / upload speeds through my PC, Xbox 360, iPhone and parents' laptop. However, my Mac Mini is very slow. OS X's Mail.app is downloading mail at 0.4kbps and then dropping to 0. Skype file transfers are doing the same. Browsing the net is a terrible experience. It is taking 30 seconds or more to download basic pages. All of my devices connect wirelessly to a Netgear router / modem. I have tried giving the Mac Mini a manual IP, and renew DHCP lease, as well as flush DNS in Terminal. I have also rebooted the router / modem twice, and the Mac Mini twice. Do you know what could be causing this? Thanks

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• Music but no voice on headphones

  - by TFD

  I have normal stereo headphones which work fine On a specific PC running Windows 7 the external speaker and USB speakers work fine too But when I plug in the headphones, all I hear is muffled music, no voice track? It sounds like it is being split into 5.1, and I am getting just the L & R components, and not the centre voice channel? In the Playback devices (sound) control panel, I can adjust stereo or 5.1 for external speakers or USB speakers, but not for the headphones. The config button is grey out for them Is this the problem, if so how do I fix it?

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• Setting Up Multiple Domains (plus wildcard subdomains) to Point to the Same Site/VirtualHost

  - by Derek Reynolds

  I have my primary domain with wildcard subdomains setup already. username.maindomain.com and maindomain.com I want to provide my users with additional domains that they can select. additional1.com, additional2.com, additional3.com... These additional domains would also need to support wildcard subdomains (as the subdomains route to a username). Anyone know how to properly configure this in DNS and VirtualHost config? Currently I have the additional domains as A records pointing to the same IP as my main domain (with a wildcard subdomain A record for each as well). In my VirtualHost config I am placing the additional domain names in the ServerAlias directive. Let me know if any more detail is needed.

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• Where to begin with IPv6 [closed]

  - by Willem de Vries

  I am fairly familiar with setting-up IPv4 networks for bigger server configurations, only now I wanted to start familiarizing myself with doing the same for IPv6. I have been Googling for the second night in a row for things like: IPv6 network design, IPv6 for dummies, etc. So far most things you find go on about why IPv6 and the amazing amount of numbers that we have now. Yet I am looking for practical stuff, for example: what would be a good way to assign IP-number, as I understand it DHCP shouldn't be the default course of action. How do other assignment methods work with DNS configuration? what would be a good or standard way of dividing the network in to sub-nets? (database, application, web servers spread over multiple domains/applications and some what intertwined) In short I would like to find good resources with practical information books, webpages, etc.

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• Connecting Windows XP to Windows 7 directly using cable

  - by TPR

  These are the problems I am encountering. XP can access Windows 7, not the other way around (which is fine, because I don't need it the other way currently) File transfer is too slow like 0.031 MB/s even though netperf and netCPS list around 8-9 MB/s. I disabled firewall on both computers. Both are same workgroup. I left homegroup on Windows 7. Windows 7 sees the connection as unidentified network. 10.1.1.2 (XP) and 10.1.1.1 (Windows 7) Subnet mask 255.255.255.0 Default gateway and DNS are empty for both of them. Both computer are connected to internet using wireless (using home network), and both of them are connected to each other using wire! If anybody has any pointers, do let me know. I have no problem doing such setup with both computers being Windows 7. This time one of them is XP though, and that seems to be the problem.

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• Cannot activate windows 7

  - by Charlie

  I can't activate Windows 7, I get an error saying DNS name does not exist. Is something configured incorrectly somewhere? PS: I need the answer within 13 days ;) UPDATE: I had upgraded from my company's Windows Vista build, and when I connect to the company VPN and activate I get a different error: The Software Licensing Service reported that the computer could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional information. The Application Event Log contains this (I took out the server name, it's one of the company servers): The client has sent an activation request to the key management service machine. Info: 0xC004F042, 0x00000000, xxxxxxxxxxxxxxxxxxxxxxxxx.com:1688, 7fbdc9b7-d654-49ed-80a7-81a34408f8dc, 2009/09/01 10:59, 0, 2, 17880, ae2ee509-1b34-41c0-acb7-6d4650168915, 25

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• Classic ASP on large memory server

  - by Steve Evans

  I have a client with a large ASP app that apparently is fairly memory intensive. I’m helping them migrate to new hardware they have running Win2k8 R2. They have 4 physical servers with 32gb of RAM each. I’m making the assumption that ASP apps run as a x32 process. So I see that we have two options: On the application pool enable web gardens. Use the physical servers as VM hosts and split the box into say 4 web servers each. Any thoughts on which path will provide us better performance? I’m just not really sure how ASP will handle a machine with lots of memory, and I’m worried it won’t really be able to address the memory well. (you can ignore all the obvious stuff like increased maintenance of 16 web servers vs 4, or the flexibility virtualization gets us over physical servers, etc)

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• Converting my PC to a server

  - by Sean87

  I live in a university campus and luckly I have super fast internet in my room, with a static IP address. I tried to setup XAMPP and by pointing to my IP address from anywhere I can access the services running on my PC. Now I am thinking of hosting my own website on my own PC. I am not sure what else I will need (beside the static IP) to make this happen (if it is possible at all). I am running Windows 7 ultimate and of course I do have a domain registered. What should I point my domains DNS names to make this happen (I assume it is far more steps involved!)

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• Apple XRaid questions

  - by luckytaxi

  I inherited an environment with a couple of apple xraid san. 1 - I have a 14 drive setup that's split into 5 LUNs on EACH side. The SAN goes into a fibre switch along w/ the servers that are attached to it. LUN masking is enabled on the SAN and as far as I know, there aren't any zoning on the fibre switch. Question, I have a server that's assigned two LUNs, one from each side of the controller. For some reason, it only sees one LUN (from the upper controller) and it doesn't see the one from the lower controller. The controller seems to be working fine as I have other servers attached to LUNs on the lower controller. 2 - I see a little "disclaimer" saying that any changes to the xraid will result in a reboot. So, if I add/remove hosts, this thing is going to reboot?!?!?!

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• Configure apache to reverse proxy for specific name

  - by Phrogz

  I have a working intranet server that: Properly serves some content from http://hqmktgwb01/ Is currently properly configured to reverse proxy from http://hqmktgwb01/dashstats to a round-robin of localhost:3000 - localhost:3003 Also has the DNS name dashstats (going to the same IP) The current working configuration file can be found here: http://pastie.org/1426082 I would like to modify the configuration so that:    4. http://dashstats/ performs the same reverse proxying http://hqmktgwb01/dashstats. I (naively) modified the config like this: http://pastie.org/1426047 (added lines 90-98) but this is not a valid Apache config. Please help me to modify the original config file to accomplish 1-4 above.

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• System 67 error scheduled task to transfer files

  - by grom

  Running directly on command line the batch script works. But when scheduled to run (Windows 2003 R2 server) as the local administrator, I get the following error: D:\ScadaExport\exported>ping 192.168.10.78 Pinging 192.168.10.78 with 32 bytes of data: Reply from 192.168.10.78: bytes=32 time=11ms TTL=61 Reply from 192.168.10.78: bytes=32 time=15ms TTL=61 Reply from 192.168.10.78: bytes=32 time=29ms TTL=61 Reply from 192.168.10.78: bytes=32 time=10ms TTL=61 Ping statistics for 192.168.10.78: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 10ms, Maximum = 29ms, Average = 16ms D:\ScadaExport\exported>net use Z: \\192.168.10.78\bar-pccommon\scada\ System error 67 has occurred. The network name cannot be found. Any ideas? Google is turning up nothing useful, just keep finding results relating to DNS etc, but using IP address here.

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