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• Sending Mail from Web App to Google Apps won't work - internal routing? VPS

  - by Charlino

  I've got a web application, www.mysuperwebapp.com, which sends out emails for various reasons - the contact us page is a good example. I am using google apps on the domain and I've setup a google apps group, Support ([email protected]), which I want the emails from the contact us page to go to. But the emails don't seem to be sending... I thought it could be that the groups security is a little tighter than normal email, so I change the contact us email to go to [email protected] - but they still didn't appear. So I'm guessing that it has something to do with internal routing and the messages aren't leaving the server/network at all. Eg Sending an email from the mysuperwebapp.com computer to a mysuperwebapp.com email address. I put an entry into the hosts file for 123.123.123.123 mysuperwebapp.com but that doesn't seem to have helped. Also, there doesn't seem to be anything of interest in the event log. What do I need to do? Or what do I need to get my VPS hoster to do? TIA, Charles Ps. The VPS is a Windows 2008 box with IIS7 and the default SMTP (IIS6?) server. The web app is ASP.NET MVC - not that that should matter.

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• Attempting to set up xampp and zend server on the same machine

  - by umbregachoong

  I am attempting to set up the zend server and xampp on the same machine but I am running into problems. I came across documentation on the zend site that said you cannot do this. However the folks over at apachefriends said you can. I have since discovered that I can run some of the zendframework examples within xampp by downloading the zendframework2 library and the skeleton app from git and I am doing this right now. However, I would like to know how to set them both up without having any conflicts both for the apache2 server and phpmyadmin. (One of the frustrating things is trying to load phpmyadmin in the deployment dialog by using the zpk tool in Zend). What I did in trying to set up both servers on windows 7 is as follows: First I have tried to set up the httpd conf files separately for each server, xampp running on port 8082 , and zend running on port 8088. At the time xampp would work, but zend server would not. This is after setting up the virtual host files separately for each server. Question 1: Where are the zend server error logs? Earlier, I was able to get both of them running configuring the xampp server httpd-conf file alone, however, I experienced problems with phpmyadmin even after configuring phpmyadmin on xampp to work on a different port other than 3306. Second question here: how to set up the two mysql phpmyadmin instances so they do not conflict with each other? Here is the xampp virtual host section: ##ServerAdmin [email protected] DocumentRoot "C:/xampp/htdocs/" ServerName localhost 8082 ##ServerAlias www.dummy-host.example.com ##ErrorLog "logs/dummy-host.example.com-error.log" ##CustomLog "logs/dummy-host.example.com-access.log" common Here is the zend virtual host section: DocumentRoot "C:\Program Files (x86)\Zend\Apache2/htdocs" ServerName localhost:8088 </VirtualHost> I have looked at this httpd.apache.org/docs/2.2/vhosts/ and this http://survivethedeepend.com/zendframeworkbook/en/1.0/creating.a.local.domain.using.apache.virtual.hosts but I am obviously doing something wrong here. I also have the java sdk running on this machine with tomcat and apache and I have no conflicts- too bad this is not the case for zend server and xampp Thanks umbre gachoong

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• Hotmail marking messages as junk

  - by Canadaka

  I was having problems with emails sent from my server being blocked completely by Hotmail, but I found out Hotmail had blocked my IP and by contacting Hotmail I had the block removed. See this question for more info: Email sent from server with rDNS & SPF being blocked by Hotmail But now all emails from my server are going directly to recipients "Junk" folder on hotmail and I can't figure out why. Hotmail says "Microsoft SmartScreen marked this message as junk and we'll delete it after ten days." I tried contacting the same people at Hotmail who had my IP block removed, but I haven't received any reply and its been almost a week. Here are some details: I have a valid SPF record for my domain "v=spf1 a include:_spf.google.com ~all" I have reverse DNS setup I have a Sender Score of 100 https://www.senderscore.org/lookup.php?lookup=66.199.162.177&ipLookup.x=55&ipLookup.y=14 I have signed up for Microsoft's SNDS and was approved. My ip says "All of the specified IPs have normal status." Microsoft added my IP to the JMRP Database My IP is not on any credible spam lists http://www.anti-abuse.org/multi-rbl-check-results/?host=66.199.162.177 my FROM header is being sent in proper format "From: CKA <[email protected]>" Here is a test email source:

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• Sending email with exim and extrnal sender address

  - by Tronic

  hi. i have following problem: i want to send emails with an rails webapp. i set up an exim server and when looking into the logs, the sending works, but the emails aren't sent really. i had the same problem with another isp. the sender address is hosted on another mailserver, other isp. i think the problem is, that sending doesn't work because the sener address isn't hosted on the same server. do you have any advice on this? the logs (exim) tell me the following: 2011-01-01 14:38:06 1PZ1eo-0000Ga-38 <= <> R=1PZ1eo-0000GY-1p U=Debian-exim P=local S=1778 2011-01-01 14:38:08 1PZ1eo-0000Ga-38 => [email protected] R=dnslookup T=remote_smtp H=mx1.emailsrvr.com [98.129.184.131] X=TLS1.0:RSA_AES_256_CBC_SHA1:32 DN="C=US,O=mx1.emailsrvr.com,OU=GT21850092,OU=See www.geotrust.com/resources/cps (c)08,OU=Domain Control Validated - QuickSSL(R),CN=mx1.emailsrvr.com" 2011-01-01 14:38:08 1PZ1eo-0000Ga-38 Completed [email protected] is the external sender-address! thank you!

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• How to avoid ugly dithering when running KDE over VNC?

  - by Chris Jester-Young

  I'm currently setting up a new Xen paravirt domain running KDE (4.2.2, from Kubuntu 9.04). As I have been unable to get the virtual framebuffer working in it, I've decided to set up VNC (from the vnc4server package), and run KDE over Xvnc. This is all fine and good, and KDE starts up okay. However, all the colours look dithered, especially on the task bar and title bar, making them impossible to see. From my web searches, it appears to be because these items are drawn using Porter-Duff. This is especially the case when using the Oxygen style, and Oxygen and Ozone window titlebars (selecting these styles generates messages about Porter-Duff being unavailable); not using those styles at least makes most of the UI widgets and window titles usable again. But this doesn't solve the problem for the task bar, nor for the desktop, where the only theme available to me is Oxygen (this is under the "Desktop Settings - Plasma Workspace" window, just for reference). So, unless I have a way to use a non-Porter-Duff theme for those, it seems that KDE would still be unusable under VNC. So if someone experienced with KDE can advise on how to work around, or even fix, these issues, I'd appreciate it very much. :-)

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• How to serve pages through multiple frameworks/template engines efficiently

  - by Leftium

  I would like to render a file that has both PHP tags and Web2Py tags mixed together. To do this, I would like the web server to pass the file through Web2Py, then PHP. I found a method to call PHP from Web2py via Python (based on this method for running PHP on top of django), but this method loses the benefits of any server optimizations from mod_php or FastCGI like caching and multi-threaded operation. A new process is created for each PHP request, which is very slow. Is there a better way to efficiently render pages with both Web2Py(Python) and PHP tags in the same file? Note I am not looking for methods of serving PHP-only and Web2Py-only files from the same server/domain. I prefer solutions for Apache2 or Cherokee. I'm open to using other web servers, though. Background info: I prefer to develop in Web2Py, but we have this pre-existing system written in PHP. I would like to augment the PHP system with some of Web2Py's features like auth authentication/user management and the T() internationalization object. Also it would make it much easier to port the PHP project to Web2Py if it could be done piecemeal. Since the PHP project consists of many files, it would greatly help if they did not need modification.

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• IIS 8 URL Redirect on site level

  - by jackncoke

  I am trying to do a simple 301 perm redirect to another url in IIS 8. The end results would be if i navigated to domain2.com i would end up on domain1.com. We are moving from IIS 6 to a new server and have aprox 600+ sites that will be configured on this IIS 8 box. All of these sites run a property CMS and are looking at the same directory for source code. In IIS 6 i would just go to the Home directory tab of each site and check the box that says "Permanent Redirect" and provide a URL. With IIS 8 there is "HTTP Redirect" and this looks like it would do the trick but it is being applied to all the sites in IIS 8. Not on the site level like it use to be in IIS 6. I also looked into URL Rewriting module for IIS 8 but it seems to take rules in the style of a firewall and i am not sure if i could effectly create rules that would cater to 600+ sites. I am looking for the easiest way to have redirects on my site level so that that customers with multiple domains can have there sites redirect to there main domain for seo purposes. I feel like this was so easily achieved in IIS 6 that i must be overlooking something in the new version.

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• Can I use a single SSLCertificateFile for all my VirtualHosts instead of creating one of it for each VirtualHost?

  - by user65567

  I have many Apache VirtualHosts for each of which I use a dedicated SSLCertificateFile. This is an configuration example of a VirtualHost: <VirtualHost *:443> ServerName subdomain.domain.localhost DocumentRoot "/Users/<my_user_name>/Sites/users/public" RackEnv development <Directory "/Users/<my_user_name>/Sites/users/publ`enter code here`ic"> Order allow,deny Allow from all </Directory> # SSL Configuration SSLEngine on #Self Signed certificates SSLCertificateFile /private/etc/apache2/ssl/server.crt SSLCertificateKeyFile /private/etc/apache2/ssl/server.key SSLCertificateChainFile /private/etc/apache2/ssl/ca.crt </VirtualHost> Since I am maintaining more Ruby on Rails applications using Passenger Preference Pane, this is a part of the apache2 httpd.conf file: <IfModule passenger_module> NameVirtualHost *:80 <VirtualHost *:80> ServerName _default_ </VirtualHost> Include /private/etc/apache2/passenger_pane_vhosts/*.conf </IfModule> Can I use a single SSLCertificateFile for all my VirtualHosts (I have heard of wildcards) instead of creating one of it for each VirtualHost? If so, how can I change the files listed above?

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• HAProxy is caching the forwarding?

  - by shadow_of__soul

  i'm trying to set up a server structure for an application i'm building in Node.js with socket.io. My setup is: HAProxy frontend forward to -> apache2 as default backend (or nginx, is apache in this local test) -> node.js app if the url has socket.io in the request AND a domain name i have something like: global log 127.0.0.1 local0 log 127.0.0.1 local1 notice maxconn 4096 user haproxy group haproxy daemon defaults log global mode http maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 frontend all 0.0.0.0:80 timeout client 5000 default_backend www_backend acl is_soio url_dom(host) -i socket.io #if the request contains socket.io acl is_chat hdr_dom(host) -i chaturl #if the request comes from chaturl.com use_backend chat_backend if is_chat is_soio backend www_backend balance roundrobin option forwardfor # This sets X-Forwarded-For timeout server 5000 timeout connect 4000 server server1 localhost:6060 weight 1 maxconn 1024 check #forwards to apache2 backend chat_backend balance roundrobin option forwardfor # This sets X-Forwarded-For timeout queue 50000 timeout server 50000 timeout connect 50000 server server1 localhost:5558 weight 1 maxconn 1024 check #forward to node.js app The problem comes when i made a request to something like www.chaturl.com/index.html it load perfectly but fails to loads the socket.io files (www.chaturl.com/socket.io/socket.io.js) why it redirect to apache (and should redirect to the node.js app that serve the files). The weird thing is that if i access directly to the socket.io file, after refreshing a few times, it loads, so i suppose is "caching" the forwarding for the client when it makes the first request and reach the apache server. Any suggestion of how this can be solved? or what i can try or look about this?

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• how to prevent other computers from seeing our network computers through vpn

  - by Disco

  We have a local office domain consisting of Windows 7 and XP machines that is running on Windows Server 2008 R2. We also have users that connect via VPN into our network. My concern is that when a remote user opens up a folder, the Network section on the left side of the folder shows the remote user all the computer names in our local network. I would like to go about renaming our computers in the local network with more descriptive computer names, but I do not want the users off-site to be able to see these computer names by simply opening up a folder. (Granted, they can already do this, but our current naming scheme does not link computer names to users.) I would like to change our computer names so we can determine which computer belongs to which user more easily IF it can be done securely. How can I ensure that our local computer names are not showing up in the Network folder for remote, VPN-connected users? My online searches have turned up results where people are advised to turn off Network Sharing and Discovery, but that seems to only ensure that the local machine doesn't see other computer names. I want to prevent OUR computer names from showing up on OTHER computers, and I can't go into the VPN-connected computers and turn off THEIR Network Discovery settings. I would think there is a group policy that would control this but I have not found one yet and I don't know how I would apply it to VPN-connected computers. Thanks! EDIT: That's true, a Group Policy wouldn't run on users only connecting via VPN, good point. What about a VPN/router policy, then?

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• Linux authentication via ADS -- allowing only specific groups in PAM

  - by Kenaniah

  I'm taking the samba / winbind / PAM route to authenticate users on our linux servers from our Active Directory domain. Everything works, but I want to limit what AD groups are allowed to authenticate. Winbind / PAM currently allows any enabled user account in the active directory, and pam_winbind.so doesn't seem to heed the require_membership_of=MYDOMAIN\\mygroup parameter. Doesn't matter if I set it in the /etc/pam.d/system-auth or /etc/security/pam_winbind.conf files. How can I force winbind to honor the require_membership_of setting? Using CentOS 5.5 with up-to-date packages. Update: turns out that PAM always allows root to pass through auth, by virtue of the fact that it's root. So as long as the account exists, root will pass auth. Any other account is subjected to the auth constraints. Update 2: require_membership_of seems to be working, except for when the requesting user has the root uid. In that case, the login succeeds regardless of the require_membership_of setting. This is not an issue for any other account. How can I configure PAM to force the require_membership_of check even when the current user is root? Current PAM config is below: auth sufficient pam_winbind.so auth sufficient pam_unix.so nullok try_first_pass auth requisite pam_succeed_if.so uid >= 500 quiet auth required pam_deny.so account sufficient pam_winbind.so account sufficient pam_localuser.so account required pam_unix.so broken_shadow password ..... (excluded for brevity) session required pam_winbind.so session required pam_mkhomedir.so skel=/etc/skel umask=0077 session required pam_limits.so session required pam_unix.so require_memebership_of is currently set in the /etc/security/pam_winbind.conf file, and is working (except for the root case outlined above).

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• DNS stops working occasionally

  - by Andrey

  I have tried using Google DNS and the one provided with DHCP. At some point my PC (Windows 7) stops resolving domain names, but DNS server is perfectly pingable. What can be the reason? Thanks! Edit: It is really weird. It can stop and start working in few seconds. The problem is that DNA requests are timing out, and the problem is that the DNS server is pingable at the same time. I can't understand how this could be possible and what might be an issue. C:\Windows\System32\drivers\etc>nslookup google.com DNS request timed out. timeout was 2 seconds. Server: UnKnown Address: 8.8.8.8 Non-authoritative answer: Name: google.com Addresses: 173.194.78.102 173.194.78.101 173.194.78.139 173.194.78.113 173.194.78.100 173.194.78.138 C:\Windows\System32\drivers\etc>nslookup google.com DNS request timed out. timeout was 2 seconds. Server: UnKnown Address: 8.8.8.8 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** Request to UnKnown timed-out

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• How is a subdomain passed to the webserver?

  - by Joshua Frank

  I know that dns resolves an address like example.com to an IP address like 11.22.33.44, but I'm a little confused about how subdomains are resolved, so that when you type http://subdomain.example.com, what actually gets passed to the server at 11.22.33.44? In other words, example.com = 11.22.33.44, but subdomain.example.com/path = ??? Are "subdomain" and "path" passed as http headers, or mapped in the url in some way, or what? Thanks in advance. Edit: If I'm understanding correctly, BloodPhilia says that subdomain.example.com actually is a different domain that in principle could resolve to a totally different IP. But if that's so, then what about hosts that have huge numbers of (what look like) subdomains, but which actually map to some path on the site. For instance, blogspot hosts millions of blogs, and they all look like this: aaa.blogspot.com bbb.blogspot.com ...millions more... yyy.blogspot.com zzz.blogspot.com Those are clearly not subdomains with their own IP's, but rather some mapping like aaa.blogspot.com -- www.blogspot.com/aaa, but how is this accomplished? What actually gets passed to the web server at blogspot.com?

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• Feasibility of Windows Server 2008 DFS replication over WAN link

  - by CesarGon

  We have just set up a WAN link that connects two buildings in our organisation. The link is provided by a 100-Mbps point to point line. We have a Windows Server 2008 R2 domain controller on each side of the link. Now we are planning to set up DFS for file services across the organisation. The estimated data volume is over 2 TB, and will grow at approximately 20% annually. My idea is to set up a file server in each building and install DFS so that all the contents stay replicated over the 100-Mbps link. I hope that this will ensure that any user will be directed to the closest (and fastest) server when requesting a file from the DFS folders. My concern is whether a 100-Mbps WAN link is good enough to guarantee DFS replication. I've no experience with DFS, so any solid advice is welcome. The line is reliable (i.e. it doesn't crash often) and our data transfer tests show that a 5 MB/sec transfer rate is easily achieved. This is approximately 40% of the nominal bandwidth. I am also concerned about the latency. I mean, how long will users need to wait to see one change on one side of the link after the change has been made on the other side. My questions are: Is this link between networks a reliable infrastructure on which to set up DFS replication? What latency times would be typical (seconds, minutes, hours, days)? Would you recommend that we go for DFS in this scenario, or is there a better alternative? Many thanks.

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• SQL Server 2008 Bring Database Online trying to open a file from a drive that doesn't exist

  - by Nai

  This is my error I am facing TITLE: Microsoft.SqlServer.Smo Set offline failed for Database 'Go3D_Retailer ------------------------------ ADDITIONAL INFORMATION: An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo) Unable to open the physical file "E:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\DATA\ftrow_Go3D_catalog.ndf". Operating system error 2: "2(failed to retrieve text for this error. Reason: 15105)". Database 'Go3D_Retailer' cannot be opened due to inaccessible files or insufficient memory or disk space. See the SQL Server errorlog for details. ALTER DATABASE statement failed. (Microsoft SQL Server, Error: 5120) Background to this error I've been trying to move my destination logshipping database to another physical server for analysis purposes. Because I do not have domain keys and active directory set up, I had to hack my process by using the same username/password for both the source and destination servers to get the process to work. Following that, I used this guy's solution to move the destination database to another server. However, this error occurs when I try to bring the database back online. I don't have an E drive on my server and I have no idea why it's trying to open a file from E drive. I have over a 100gb left on my hard disk so it's definitely not a space issue. This sounds like a bug... Any ideas?

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• Configuring DNS and IIS for multiple domains on a single server

  - by RichardS

  I might be over complicating this but...I am hosting several websites and dns for the domains on a single server: domain1.net domain1.com domain2.net I have three items which I'm trying to work out whether to achieve by DNS, by IIS hostnames(bindings), or by IIS redirect. 1. Where I have domain1.net and domain1.com, I want everything from both (all emails and web requests) to just point to the domain1.net. Can I do this at the DNS level, or do I have to set up the email as forwarders on the email server and the domain as a hostname in IIS? For example: [email protected] [email protected] www.domain1.com www.domain1.net 2. I want to make sure that requests for domain1.net and www.domain1.net both resolve to the same place. Should this be done with DNS or with multiple hostnames, or with IIS redirects? 3. If I then want to have one webmail site serving all of domains (webmail.domain1.net, webmail.domain2.net), is it best to this with a cname in DNS or with host headers in IIS?

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• Can't connect remotely to Windows Server 2008 R2

  - by JohnyD

  I have a new Dell R710 server running Windows Server 2008 R2. I one of it's 4 nic's set up and the rest are not being used. I have successfully given it an ip address, network mask, and dns servers. I can ping and resolve this machine from anywhere else in the network. However, when I try to connect to it via RDP it does several things: 1) it might just outright refuse me with the message, "This computer can't connect to the remote computer. Try connecting again." 2) it might connect me and let me chose the account I would like to log on as... but when you select an account then you receive the same message as in #1 3) it might actually allow you to connect but only for about 1 minute and then you receive the same message and it closes your session. I have configured the firewall service to allow for RDP over the domain network connection. This didn't have any noticible effect. I have now disabled the firewall for all 3 networks and have even stopped the Windows Firewall service. I am still having the same issue. I am new to Server 2008 R2 and things are very different. Please give me any advice you can on how to resolve this issue and/or any other gotchas that are sure to come my way. The 2003 - 2008 learning curve seems steep. Thanks

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• Affordable combined Ruby/Rails/Redmine + Subversion hosting?

  - by Pekka

  I'm a self employed web developer and after nine years of hard work, I'm looking to become a bit more "vagrant" starting next year, do some much-needed traveling and a bit and work off and on, making use of one of the greatest advantages of a programming job: The ability to work virtually from everywhere. For that, I am looking for a reliable hosting company I can entrust my code to in the form of a number of Subversion repositories, and an installation of the Redmine project management tool. As my financial situation may vary during traveling, I am looking for something I can pay up front for a year or two, and is obviously not too pricey. I don't care where the company is located, as long as it's trustworthy and solid, meaning it's not likely to go out of business next month. Does anybody know good recommendations? Preferably from own, personal, good experience. I have looked at CVSDude / Codesion and while they are certainly great, they don't offer Redmine of course, and seem to be aiming toward bigger organizations mainly. What I would need: 2-5 Gigs of space minimum, freely distributable between SVN, and Redmine attachments Unlimited number of Subversion projects Access control (team members / checkout-only accounts / etc.) I don't mind configuring the svn settings on file basis myself I need the possibility to map a custom domain to the package that is hosted elsewhere Frequent backups and access to those backups through FTP or other means I have been running my own virtual server for this until now, but I don't want the hassle, especially on the security side, while I may not always have the internet connection to fix problems that may come up.

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• Exchange SBS 2003 server stopped receiving mail over the weekend, senders getting "Relay access deni

  - by Charlie W.

  Firstly, I should say that I know my way around Windows very well, I don't really know the first thing about Exchange. I am trying to support a user that is running an SBS2003 Server with Exchange. Over the weekend, everyone sending something to any of his addresses gets an error message like the following: Delivery to the following recipient failed permanently: [email protected] Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 554 554 5.7.1 <[email protected]>: Relay access denied (state 14). ----- Original message ----- Received: by 10.114.18.7 with SMTP id 7mr5572745war.127.1275423472120; Tue, 01 Jun 2010 13:17:52 -0700 (PDT) MIME-Version: 1.0 Sender: [email protected] Received: by 10.143.10.15 with HTTP; Tue, 1 Jun 2010 13:17:32 -0700 (PDT) From: My Name <[email protected]> Date: Tue, 1 Jun 2010 15:17:32 -0500 X-Google-Sender-Auth: XiPrP8Em_6Eb94EH9m84nJVGvCY Message-ID: <[email protected]> Subject: TEST To: Client <[email protected]> Content-Type: multipart/alternative; boundary=001636b1484ffe72470487fdaa5b There are a host of errors in the Application log, but nothing that leaps out at me as being obvious. But then again, I don't really know what I'm looking for. Any help would be greatly appreciated.

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• InstantSSL's certificate no different than a self signed certificate under Nginx with an IP accessed address

  - by Absolute0

  I ordered an ssl certificate from InstantSSL and got the following pair of files: my_ip.ca-bundle, my_ip.crt I also previously generated my own key and crt files using openssl. I concatenated all the crt files: cat my_previously_generted.crt my_ip.ca_bundle my_ip.crt chained.crt And configured nginx as follows: server { ... listen 443; ssl on; ssl_certificate /home/dmsf/csr/chained.crt; ssl_certificate_key /home/dmsf/csr/csr.nopass.key; ... } I don't have a domain name as per the clients request. When I open the browser with https://my_ip chrome gives me this error: The site's security certificate is not trusted! You attempted to reach my_ip, but the server presented a certificate issued by an entity that is not trusted by your computer's operating system. This may mean that the server has generated its own security credentials, which Google Chrome cannot rely on for identity information, or an attacker may be trying to intercept your communications. You should not proceed, especially if you have never seen this warning before for this site.

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• SSH freeze when UFW is enabled

  - by Cristian Vrabie

  I have a small Ubuntu 10.10 server and i recently noticed a weird behavior (not sure if it was happening before). If I have ufw enabled (with default deny all in, allow all out, allow all http, allow all on a random port i use for ssh) when i perform some actions in a ssh sesion, the ssh console completely freezes. The server continues to work and if i close the console i can start another ssh session. This happens no matter from where I log in (tried from another ubuntu and a mac). The actions are fairly reproducible, for example vim some config files (though vim-ing other files works), cat some other file, etc. The freeze never happens if ufw is disabled. Any idea what's going on? Thanks! Cristian Addition: if you're wondering, yes, I have TcpKeepAlive on yes and I doubt is related (it would happen with ufw disabled too) As requested: my ufw conf below. Also, i don't know if it has something to do but the server has 2 ips. On one is configured the ssh domain, and on one to serve hhtp (via apache2) Status: active Logging: on (low) Default: deny (incoming), allow (outgoing) New profiles: skip To Action From -- ------ ---- 19922/tcp ALLOW IN Anywhere 9418/tcp ALLOW IN Anywhere 80/tcp ALLOW IN Anywhere 443/tcp ALLOW IN Anywhere

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• Postfix mail forwarder

  - by Andrew

  Hello, I just bought a dedicated server and I'm trying to install a webserver on it. The server is Ubuntu 10.04. I installed ftp, nginx, php, mysql, bind and now I have to install mail server. For the mail server I'm using Postfix, because it's recomended on ubuntu. I installed Postfix with apt-get install postfix but mail() function from php wasn't working. After a little debug I found the way to solve this : I created an empty file /etc/postfix/main.cf and it worked good. I do have a mx record like this mail 5M IN A xxx.xxx.xxx.xxx example.com. 5M IN MX 1 mail.example.com. After that I wanted to forward all e-mails to my GMail address. So I googled for it and I found in the official docs Virtual Domain Host Forwarding I added these lines in main.cf virtual_alias_domains = example.com virtual_alias_maps = hash:/etc/postfix/virtual I created map file and I placed this line in it @example.com [email protected] I run in terminal postmap /etc/postfix/virtual postfix reload The result: I can send e-mail from php with mail() function, but when I send an email to [email protected] that e-mail isn't forwarded to my Gmail. How to solve this? -Andrew I also tried this but not working http://rackerhacker.com/2006/12/26/postfix-virtual-mailboxes-forwarding-externally/ It works now! But I don't know what the problem was. I just installed "Mail Server" from Tasksel and after that it worked fine. Can anyone tell me what Tasksel installed or that it changed ?

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• Using a Level 2 switch as a core switch

  - by imtech

  I have a small user base of about 20 people on at a time and spiking up to about 80 people during peak times. Most people (80+%) are connected over our Aruba managed wireless system. We have a Windows Domain. We have 3 24-Port switches all connecting back to a central 48-port switch where additional access ports, firewall, servers, and wireless controller all centrally connect back to. It's a flat network with dumb switches. I'm in the process of upgrading our infrastructure. Cisco pricing for switches is pretty high for us so I've been looking at HP Procurves which seem to be within our budget range. I want to eventually make use of 802.1x, SNMP, QoS for possible VOIP upgrades, VLAN to separate guest VLAN from authenticated users, and other more advanced features. PoE would be nice but that's probably too expensive for us. I was thinking of having our core switch be a Procurve 2610 and the rest of our switches that centrally connect to it be Procurve 2510s. A true and full blown level 3 switch is way out of our price range but a 2610 seems to be good enough for us. The 2610 does static routing which ought to be good enough for us but I'm in unfamiliar territory so I'm looking for any gotchas. Also, should all the switches be 2610s or just the core switch? Do I even need the 2610, can I just go with all 2510s? I'm new to VLANs as well so I'm not sure what it is I need but I would like an affordable infrastructure that won't need replacing 2-3 years down the line because I choose a product that was lacking.

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• Can't Start SQL Server 2005 Agent - Start/Stop Are Not Enabled

  - by DaveB

  We have a brand new install of SQL Server 2005 on a Windows 2008 Server. When using the SQL Server Management Studio (2005 or 2008) from my Windows XP Professional workstation, if I right click on the SQL Server Agent, I get the context menu but the Start and Stop options are not enabled(grayed out). I am using Windows authentication, I am a member of the SysAdmin and Public SQL Server roles. Also, when right clicking on Maintenance Plans and selecting New Maintenance Plan, nothing happens. I was able to create a maintenance plan with the wizard but now am unable to execute it because SQL Server Agent isn't running? From what I was told by an admin who had access to the server, he was able to login to the box using the domain administrator account and start the SQL Server Agent service from the services applet or from the local instance of SQL Server 2005 Management Studio. Even after he started the service, it still didn't appear to be running from my workstation view through the management studio. What do I need to change to allow me to administer the agent and maintenance plans from my workstation? If I wasn't clear about anything, feel free to ask for clarification.

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• Configure tomcat behind loadbalancer to respond on HTTP and HTTPS

  - by user253530

  I have 2 tomcat machines behind a load balancer on Amazon EC2. Until now The load balancer was configured to respond only on https. So in order to access our services you would go to https://url. Tomcat was configured to listen on 8080 but the connector had additional params that would tell tomcat that it is behind a proxy and that it should respond on HTTPS 443. The connector looks like this: <Connector scheme="https" secure="true" proxyPort="443" proxyHost="my.domain.name" port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" useBodyEncodingForURI="true" URIEncoding="UTF-8" /> What i would like to do is to open port 80 on the load balancer and basically allow traffic on HTTP and HTTPS. I've configured the load balancer to redirect all HTTP traffic to the tomcat machines on port 8088. I was thinking that i could define a new connector so that all HTTPS traffic goes to 8080 and HTTP to 8088. Unfortunately i did not succeed. Here is my connector <Connector port="8088" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" useBodyEncodingForURI="true" URIEncoding="UTF-8" /> Am I missing something? Thanks

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