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• external postfix forwarding to zimbra server

  - by Marko

  I want to migrate from my current mail server (old_server) for my domain mydomain.com. old_server setup is Postfix+LDAP+Cyrus. Now I want to migrate my domain mail to Zimbra server (zimbra), but I am considering option to leave current mail server working in the first phase, and then to only have subset of email addresses to be forwarded to zimbra server. It seems that zimbra refers this in their documentation as 'edge MTA'. Current config mydomain.com MX: old_server <---------- smtp send ----------> smtp receive New config mydomain.com MX: old_server zimbra <------------------------------------------- smtp send ----------> smtp receive ---- forward ----> smtp receive I need following: old_server to receive mail for my domain as before, but for some of the email addresses I want them to be delivered to zimbra server. I should be able to determine which email addresses will be forwarded. I would like to avoid possible false spam detections for mails from mydomain.com due to this setup. Questions: How should I configure postfix on old_server to support this mail forwarding? To avoid false spam detection, can I have outgoing mail from mydomain.com to be sent by zimbra or should I use old_server? Is there anything extra I would need to do in order to avoid possibility of my outgoing mails being marked as spam on other servers?

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• Why does `rpm` show 3 httpd packages, and which one provides the real httpd?

  - by Stefan Lasiewski

  I ran yum update on my CentOS5 webserver a few days ago. Today I just noticed that I have 3 httpd-* rpms! How can I end up with three RPMs for httpd (My other servers only have one httpd rpm). I want to make sure that my server has a patched, updated version of /usr/sbin/httpd. How can I tell which one of these packages provides the httpd binary at /usr/sbin/httpd? [root@node1 ~]# rpm -q httpd httpd-2.2.3-76.el5.centos httpd-2.2.3-78.el5.centos httpd-2.2.3-83.el5.centos [root@node1 ~]# /usr/sbin/httpd -V |grep version Server version: Apache/2.2.3 [root@node1 ~]# rpm -q httpd-2.2.3-76.el5.centos --list |grep -w /usr/sbin/httpd /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker [root@node1 ~]# rpm -q httpd-2.2.3-78.el5.centos --list |grep -w /usr/sbin/httpd /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker [root@node1 ~]# rpm -q httpd-2.2.3-83.el5.centos --list |grep -w /usr/sbin/httpd /usr/sbin/httpd /usr/sbin/httpd.event /usr/sbin/httpd.worker [root@node1 ~]# root@node1 ~]# rpm -q --provides httpd |grep -w httpd config(httpd) = 2.2.3-76.el5.centos httpd-mmn = 20051115 httpd = 2.2.3-76.el5.centos config(httpd) = 2.2.3-78.el5.centos httpd-mmn = 20051115 httpd = 2.2.3-78.el5.centos config(httpd) = 2.2.3-83.el5.centos httpd-mmn = 20051115 httpd = 2.2.3-83.el5.centos Update: Answering Mark Wagner's questions: [root@node1 ~]# rpm -q -f /usr/sbin/httpd httpd-2.2.3-76.el5.centos httpd-2.2.3-78.el5.centos httpd-2.2.3-83.el5.centos [root@node1 ~]# rpm -V httpd-2.2.3-83.el5.centos S.5..... c /etc/logrotate.d/httpd S.5..... c /etc/rc.d/init.d/httpd ....L... /var/www

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• Powershell: Execute exe on remote server and capture output

  - by user364825

  I am trying to script the execution of an installer on remote web servers. The installer in question is also a Windows Service that hosts NServiceBus. If RDP'd into the server, the application is installed by the following command: &"$theInstaller" /install /serviceName:TheServiceName The installer prints output about its progress registering the service and connecting to the database to stdout, among other things. This works fine from an RDP session, but when I execute it remotely via PS, I get a you-can't-do-this-over-the-network message if I execute it directly or via Invoke-Command -computername $theRemoteServer: System.IO.FileLoadException: Could not load file or assembly 'file://\\theRemoteServer\c$ \thePath\AutoMapper.dll' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515) --- System.NotSupportedException: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more information. (Note: I added an additional "\" to the path in the first line in order to get it to show up correctly in the preview on this site.) This, and other DLLs, are loaded by the service, and the service's execution context cannot, apparently, be remotified. I have also tried using Invoke-WmiMethod, which does something, but it's not clear what, and the output from the installer is lost: Invoke-WMIMethod win32_process create '"$theInstaller" /install /serviceName:TheServiceName' -ComputerName $server (with and without cmd.exe /k before the intaller reference): __GENUS : 2 __CLASS : __PARAMETERS __SUPERCLASS : __DYNASTY : __PARAMETERS __RELPATH : __PROPERTY_COUNT : 2 __DERIVATION : {} __SERVER : __NAMESPACE : __PATH : ProcessId : ReturnValue : 9 How does one remotely execute such an EXE and capture the output? Thanks!

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• puppet master --compile logs errors to stdout

  - by danny

  I see a bug about this that was accepted and then closed a year ago: http://projects.puppetlabs.com/issues/3670 but I'm using puppet 2.7.14 and am getting the same issue. I'm trying to use "puppet solo" (i.e. just running puppet apply on each server to be configured) as I only have 2 or 3 servers in this project and adding another server as a puppetmaster would be completely overkill. Unless I'm mistaken, the best way to apply a node manually to a server is to do: puppet master --compile=mynode > catalog.json puppet apply --catalog catalog.json But the puppet master command outputs a couple of warnings and notices to stdout, mixed in with the desired json content. And it uses colored output so I can't just pipe it through egrep -v '^warning:' EDIT: I guess it's not too big of a deal to use grep - since puppet 2.7 pretty-prints the actual content and the warnings don't ever start with spaces, piping the output through egrep '^( |{|})' works So my questions are basically: Is there a better way than this to apply a puppet node without using a puppetmaster? I can't really find any good references online to using puppet without a puppetmaster, even though that seems like a perfectly reasonable thing to do for a small project. Is there a setting or flag that I'm missing that will get puppet master to stop being an asshole and send its errors to stderr instead of stdout? Or do I really have to turn off color logging, then grep to exclude warning: and notice: lines?

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• Postfix: change sender in queued messages

  - by ring0

  Following a complete re-installation we got a problem with the configuration: the sender address was wrong and some recipients (mail servers) rejected them. So there is a bunch of mails stuck in the Postfix queue. Ideally, a change of the sender address directly in the queued mails, and then flushing the queue would be optimal. I tried this answer that addresses this very problem. But messages don't seem to be easily modifiable in the version I have (2.11.0). For instance there is no /var/spool/mqueue dir, but, instead, /var/spool/postfix/... active bounce corrupt defer deferred dev etc flush hold incoming lib maildrop pid private public saved trace usr and the dir of interest is deferred. I tried to modify a few files there changing the wrong domain with the correct one (and was careful to ensure only those were changed). But then, those mails were moved to corrupt, meaning that a simple text change doesn't seem to work (done with vi). Any other cleaner way to change the sender in queued mails?

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• SQLVDI error - attempt to release mutex not owned by caller

  - by Chris W

  I've started getting some errors in the App event log of one of our database servers (Windows 2003 & SQL Server 2005). The nightly full database backups are completing successfully however immediately after the job success is written to the event log there is a run of entries that say: SQLVDI: Loc=CVDS. Desc=Release(ClientAliveMutex). ErrorCode=(288)Attempt to release mutex not owned by caller. There's five of these logged - the server itself has more than 20 databases on it which are all backed up successfully. The server is backed up by Bacula using a VSS backup. Has anyone got any ideas what would be causing the errors? They seem to have started after a re-boot on Friday to install some patches which included KB960089. Edit: After getting the errors for a few days they've now stopped without any action on my part other than letting the backups continue as they were. It may be a coincidence but they stopped after Bacula completed its weekly full rather than the daily incremental backup.

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• When I ping Internet addresses like yahoo or Google, I get 2 reply packets and 2 lost packets.

  - by navi

  I have Airtel broadband and a Tata broadband connection. i have around 50 PCs connecting through an airtel broadband connection. Both are dsl connections with my phone line going into dsl modems and an Ethernet cable going from dsl modem directly into a switch. Currently, only airtel connection is connected with static IP on my private lan and using the airtel ISP DNS servers as DNS IP address and the default gateway is 192.168.1.1 (IP add. of the dsl modem). All PCs are connected in a work group. When in full use, my users complain of certain web pages are not opening. When I ping Internet addresses like Yahoo or Google I get 2 reply packets and 2 lost packets. I suspect that a single broadband connection is not able to sustain 50 simultaneous downloads/browsing. Is there any device which connect to both DSL and make one line so that its give me high speed simultaneous browsing. Help needed urgently. Thank you all to those who reply.

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• Solaris ldap Authentication

  - by Tman

  Iv been having a trouble trying to get my Solaris 10 server to authenticate against an eDir server.im managed to Set up my linux(RHeL,SLES) servers to authenticate against the ldap Server.which works fine. Here is my configuration Files. ldapclient list: NS_LDAP_FILE_VERSION= 2.0 NS_LDAP_BINDDN= cn=proxyuser,o=AEDev NS_LDAP_BINDPASSWD= {NS1}ecfa88f3a945c22222233 NS_LDAP_SERVERS= 192.168.0.19 NS_LDAP_SEARCH_BASEDN= ou=auth,o=AEDev NS_LDAP_AUTH= simple NS_LDAP_SEARCH_SCOPE= sub NS_LDAP_CACHETTL= 0 NS_LDAP_CREDENTIAL_LEVEL= anonymous NS_LDAP_SERVICE_SEARCH_DESC= group:ou=Groups,ou=auth,o=AEDev NS_LDAP_SERVICE_SEARCH_DESC= shadow:ou=users,ou=auth,o=AEDev?sub?objectClass=shadowAccount NS_LDAP_SERVICE_SEARCH_DESC= passwd:ou=auth,o=AEDev?sub?objectClass=posixAccount NS_LDAP_BIND_TIME= 10 NS_LDAP_SERVICE_AUTH_METHOD= pam_ldap:simple getent passwd works fine: root:x:0:0:Super-User:/:/sbin/sh daemon:x:1:1::/: bin:x:2:2::/usr/bin: sys:x:3:3::/: adm:x:4:4:Admin:/var/adm: lp:x:71:8:Line Printer Admin:/usr/spool/lp: uucp:x:5:5:uucp Admin:/usr/lib/uucp: nuucp:x:9:9:uucp Admin:/var/spool/uucppublic:/usr/lib/uucp/uucico smmsp:x:25:25:SendMail Message Submission Program:/: listen:x:37:4:Network Admin:/usr/net/nls: gdm:x:50:50:GDM Reserved UID:/: webservd:x:80:80:WebServer Reserved UID:/: postgres:x:90:90:PostgreSQL Reserved UID:/:/usr/bin/pfksh svctag:x:95:12:Service Tag UID:/: nobody:x:60001:60001:NFS Anonymous Access User:/: noaccess:x:60002:60002:No Access User:/: nobody4:x:65534:65534:SunOS 4.x NFS Anonymous Access User:/: tlla:x:2012:100::/home/tlla: test:x:2011:100::/home/test: thato:x:2010:100::/home/thato: pam.conf login auth sufficient pam_unix_auth.so.1 #server_policy login auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass login auth required pam_dial_auth.so.1 rlogin auth sufficient pam_rhosts_auth.so.1 rlogin auth requisite pam_authtok_get.so.1 rlogin auth required pam_dhkeys.so.1 rlogin auth required pam_unix_cred.so.1 rlogin auth sufficient pam_unix_auth.so.1 rlogin auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass rsh auth sufficient pam_rhosts_auth.so.1 rsh auth required pam_unix_cred.so.1 rsh auth sufficient pam_unix_auth.so.1 #server_policy rsh auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass other auth requisite pam_authtok_get.so.1 other auth required pam_dhkeys.so.1 other auth required pam_unix_cred.so.1 other auth sufficient pam_unix_auth.so.1 other auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass passwd auth required pam_passwd_auth.so.1 passwd auth sufficient pam_unix_auth.so.1 ssh account sufficient pam_unix.so.1 ssh account sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass other account requisite pam_roles.so.1 other account sufficient pam_unix_account.so.1 other account sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass other password required pam_dhkeys.so.1 other password requisite pam_authtok_get.so.1 other password requisite pam_authtok_check.so.1 other password required pam_authtok_store.so.1 other password sufficient pam_unix.so.1 other password sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass Local Authentication Works But LDAP Authentication Doesn't Work.

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• netconfig won't change DNS on opensuse 12.2

  - by Krystian

  I'm trying to update my dns servers after openvpn connection, but netconfig won't do that for me. Here's how I'm trying to do it [manually now]: /sbin/netconfig modify -v -i tap0 -s openvpn <<-EOF INTERFACE='tap0' DNSSERVERS='10.10.0.1' EOF And here's the verbose output: debug: lockfile created (/var/run/netconfig.pid) for PID 5530 debug: lockfile created debug: write new STATE file /var/run/netconfig//tap0/netconfig0 debug: Module order: dns-resolver dns-bind dns-dnsmasq nis ntp-runtime debug: dns-resolver module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_dns_settings: /var/run/netconfig/NetworkManager.netconfig debug: get_dns_settings: service 'NetworkManager' => rank '1' debug: get_dns_settings: DNS_SEARCHLIST_1='mydomain.com' debug: get_dns_settings: DNS_SERVERS_1='192.168.0.1' debug: exit get_dns_settings: /var/run/netconfig/NetworkManager.netconfig debug: write_resolv_conf: ' mydomain.com ' ' 192.168.0.1 ' debug: No changes for /etc/resolv.conf debug: dns-bind Module called debug: dns-dnsmasq Module called debug: nis Module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_nis_settings: /var/run/netconfig/NetworkManager.netconfig debug: exit get_nis_settings: /var/run/netconfig/NetworkManager.netconfig debug: set_nisdomainname: eth0 24 debug: set_nisdomainname: => yes debug: set_nisdomainname: old[]=, new[24]= debug: format_yp_conf called with : debug: Using static fallback debug: format_static[0] called debug: No changes for /etc/yp.conf debug: nis domainname '' is up to date debug: ntp-runtime Module called debug: Static Fallback debug: Use NetworkManager policy merged settings debug: exec get_ntp_settings: /var/run/netconfig/NetworkManager.netconfig debug: get_ntp_settings: NTP_SERVER_LIST='' debug: exit get_ntp_settings: /var/run/netconfig/NetworkManager.netconfig I've been trying to find something relevant on the web, but failed to do so. I have no other clue on how to progress with this issue. Any thoughts?

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• How to connect the virtual networks of vmware guests running on different hosts?

  - by gyrolf

  In a test setup, we are running several virtual machines on a single vmware workstation host. All virtual machines are connected via a "host only" network. This runs fine up to 2 or 3 virtual machines (depending on the host hardware). To allow more virtual machines, we want to use more host machines. Details about the environment and applications: Host PCs are running Windows XP in a corporate intranet. VMware used is Workstation 6.5 Guests are running Windows Server 2003 All guests act as Web Servers One of the guests additionally acts as Windows File server, offering shared folders for the other guests to connect to. Restrictions: VMware guests shall not be visible from the intranet. Changes to the host PC are restricted by corporate policy. In the virtual network, no domain controller exists. All virtual machines are member of the same workgroup. Running the virtual network as NAT is possible. Port forwarding might be used if it does not conflict with ports used by the host PC. Looking for a solution, I found hints about using router or vpn software on the hosts, but without any details how to setup. (I found a similar question Sharing the network between 2 VMware hosts, but the answer was not sufficient for me.)

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• What can I do to lower bandwidth cost on a bandwidth heavy site?

  - by acidzombie24

  The easiest answer is CDN but I'd like to ask. A friend of mine has a server that is used for mirror downloads. He says he is doing about 10TB of bandwidth a month which shocked me (I wonder if he is lying). I seen his site and he has no ads. I suspect he might close his website once he gets the bill. Anyways I was wondering since his CPU/RAM is not being used and his HD usage is around 15gb what he can do to lower cost if he continues this site. I said put up ads but I don't know if ads would cover it I found one CDN which offers $0.070 / GB. 10240gb (10TB) * .07 = $717 a month. That seems a little steep but he is using lots of traffic due to it being a mirror site. Also using a CDN doesnt make sense as he doesn't need multiple servers hosting the files in different areas (which is one reason he isn't using that now). He just needs a big upload pipe Is there something he can do? At the moment he is paying $200 a month on a dedicated server and he is using WAY more bandwidth then he should be using. Side question: Can gz-ing files large already compressed files help? like on (zip, rars, etc)

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• copSSH and cygwin - Can't use windows style paths

  - by DrFredEdison

  I setup copSSH on one of my windows servers, and within the copSSH bash shell, I can't seem to use windows-style paths to remove and copy files. If I do try, I get the following: $ /bin/cp -r C:/Domains/_temp/collage_push/* C:/Domains/collage/ cygwin warning: MS-DOS style path detected: C:/Domains/_temp/collage_push/ Preferred POSIX equivalent is: /cygdrive/c/Domains/_temp/collage_push/ CYGWIN environment variable option "nodosfilewarning" turns off this warning. Consult the user's guide for more details about POSIX paths: http://cygwin.com/cygwin-ug-net/using.html#using-pathnames I have created a windows environment variable CYGWIN set to nodosfilewarning. It has no effect. I added export CYGWIN=nodosfilewarning to my .bashrc and doing a echo $CYGWIN in my ssh session confirms it is indeed getting set; yet again, it has no effect finally, I noted that when not doing my own export that CYGWIN contains "nontsec binmode" (no quotes), so I tried: export CYGWIN="nodosfilewarning nontsec binmode" in my .bashrc and still no dice. Older versions of CopSSH didn't have this issue. How can I actually override this error? I have a lot of scripts that already use windows-style paths, and I'd rather not change them if possible.

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• chrooting php-fpm with nginx

  - by dragonmantank

  I'm setting up a new server with PHP 5.3.9 and nginx, so I compiled PHP with the php-fpm SAPI options. By itself it works great using the following server entry in nginx: server { listen 80; server_name domain.com www.domain.com; root /var/www/clients/domain.com/www/public; index index.php; log_format gzip '$remote_addr - $remote_user [$time_local] "$request" $status $bytes_sent "$http_referer" "$http_user_agent" "$gzip_ratio"'; access_log /var/www/clients/domain.com/logs/www-access.log; error_log /var/www/clients/domain.com/logs/www-error.log error; location ~\.php$ { fastcgi_pass 127.0.0.1:9001; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/clients/domain.com/www/public$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_script_name; include /etc/nginx/fastcgi_params; } } It servers my PHP files just fine. For added security I wanted to chroot my FPM instance, so I added the following lines to my conf file for this FPM instance: # FPM config chroot = /var/www/clients/domain.com and changed the nginx config: #nginx config for chroot location ~\.php$ { fastcgi_pass 127.0.0.1:9001; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME www/public$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_script_name; include /etc/nginx/fastcgi_params; } With those changes, nginx gives me a File not found message for any PHP scripts. Looking in the error log I can see that it's prepending the root path to my DOCUMENT_ROOT variable that's passed to fastcgi, so I tried to override it in the location block like this: fastcgi_param DOCUMENT_ROOT /www/public/; fastcgi_param SCRIPT_FILENAME $fastcgi_script_name; but I still get the same error, and the debug log shows the full, unchrooted path being sent to PHP-FPM. What am I missing to get this to work?

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• SQL Server 2005 - Linked Visual Foxpro Authorization

  - by John

  Here's the Scenario: We have an existing SQL 2000 Server that has a linked server to a share directory (on another server) containing Visual FoxPro tables; all connections work correctly. Porting the SQL 2000 server to a new SQL 2005 server results in questionable behavior: If you connect to the server, remotely, using Windows Authentication, you receive this error when running a query against the linked server: OLE DB provider "MSDASQL" for linked server "[linked server name]" returned message "[Microsoft][ODBC Visual FoxPro Driver]File 'MyTable.dbf' does not exist.". Msg 7350, Level 16, State 2, Line 2 Cannot get the column information from OLE DB provider "MSDASQL" for linked server "[linked server name]". However, logged in locally, the query works fine. The query also works correctly when logged in remotely, but using a SQL login. The only scenario I receive the error is when connected remotely, using windows authentication. As I mentioned before, this works on the SQL 2000 server, and both the old and new servers are running under the same network account (which has access to the folder the FoxPro files are in). Doing a little searching on the internet it looks like others have run into this situation, but I haven't found a resolution. Has anyone run into this before?

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• Problem configuring Apache/Wordpress on subdomain

  - by friism

  I have two servers (one LAMP, one Windows) and one website with an associated blog. I'm running the main site on the Windows server, and the blog on the LAMP server, using Wordpress. The main site is accessed at http://folketsting.dk (it's in Danish -- sorry), the blog is accessed at http://blog.folketsting.dk (this link is bad, read on). The main site works fine. The blog works, except for the frontpage. Example of working post: http://blog.folketsting.dk/2009/10/09/ftlive/. The frontpage of the blog (http://blog.folketsting.dk) shows html from http://folketsting.dk however (except for the css and javascript). In fact, any other URL than the frontpage "works", and gets served by Wordpress e.g. http://blog.folketsting.dk/foo. I cannot -- for the life of me -- understand how the LAMP server running http://blog.folketsting.dk manages to serve up content generated by the Windows server running http://folketsting.dk. Looking at the response headers at http://blog.folketsting.dk, it's evident that the content originates from Apache, not IIS. I'm pretty sure it's not a DNS-issue, since the problem is evident even when accessing the raw IP, eg. http://130.226.142.141/ vs. http://130.226.142.141/foo. I'm thinking it's a bad config in Apache... any clues?

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• attach / detach mssql 2008 sql server manager [SOLVED]

  - by Tillebeck

  An external consult wrote a guide on how to copy a database. Step two was detach the database using Sql Server Manager. After the detach the database was not visible in the SQL Server Manager... Not much to do but write a mail to the service provider asking to have the database attached again. The service porviders answer: Not posisble to attach again since the SQL Server security has been violated". Rolling back to last backup is not the option I want to use. Can any one give feedback if this seems logic and reasonable to assume that a detached database in a SQL Server 2008 accessed through SQL Server Manager cannot be reattached. It was done by rightclicking the database and choosing detach. -- update -- Based on the comments below I update the question with the server setup. There are two dedicated servers: srv1: Web server with remote desktop and an Sql Server Manager srv2: Sql server that can be accessed through the Sql Server Manager on the web server -- update2 -- After a restart of the server the DBA could suddenly do the attachment of the database. And I guess that after the restart it was a simple task. So all of your answer were rigth! It seems that I can only mark one as a correct answer so I marked the first answer correct. But all are correct answer. Thanks a lot. Without posting the link to this thread then we might had so suffer while watching our database beeing restored by a backup :-) Thanks a lot. BR. Anders

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• backupexec 12.5 not following symlinks on linux agent

  - by Peter Carrero

  Ok, we are at a loss here trying to backup a linux box to a backupexec server... we got a backupexec 12.5 server and a "backupexec for windows servers linux agent" (sigh) running on one of our linux boxes. When a backup runs, we get exceptions reported for our symbolic links. it says something like: BACKUP- \\<servername>\[ROOT] File \\<servername>\[ROOT]/<foldername>/<symlink> is in the backup selection list but was not found. Looking at the selection list, the symlink shows as a 1k file on BUE. Tools-Options-Backup has Backup files and directories by following symbolic links/junction points selected. These same checkboxes are selected on the Job Setup-Job Properties-Edit Template-Advanced Additionally, all the checkboxes are checkeced on Tools-Options-Linux, Unix, and Macintosh and on the Job Set-Job Properties-Edit Template-Linux, Unix, and Macintosh. These checkboxes read: "Preserve change time", "Follow local mount points", "Follow remote mount points", "Backup contents of soft-linked directories" and "Lock remote files", but apparently changing those options produce the same result. Any help on how to get BUE to make a proper backup would be greatly appreciated. Thanks.

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• Is it possible to rate limit based on host headers? i.e. not just on ip address

  - by Blankman

  I have a web service endpoint that I am building where people will post an xml file to, and it will really get pounded with over 1K requests per second. Now they are sending in these xml files via http post, but a good majority of them will be rate limited. The problem is, the rate limiting will be done by the web application by looking up the source_id in the xml, and if it is over x requests per minute, it will not be processed further. I was wondering if I could do rate limit checking earlier in the processing somehow and thus save the 50K file going threw the pipeline to my web servers and eating up resources. Could a load balancer make a call out to verify rate usage somehow? If this is possible, I could maybe put the source_id in a host header so even the XML file doesn't have to be parsed and loaded into memory. Is it possible to just look at host headers and not load up the entire 50K xml file into memory? I really appreciate your insights as this takes more knowledge of the entire tcp/ip stack etc.

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• Openfire on EC2 with Jingle

  - by Bjorn Roche

  I would like to run Openfire (or another XMPP server) on EC2. At the moment this is just for testing, so easy setup and configuration are important, as is low cost. At some point, however, if things go well, it will be important to scale this. Ideally, it would be nice to not have to switch software when the scaling happens, but if a switch needs to happen later it certainly can. My requirements are: basic XMPP services, including muc and pubsub. Logins controlled from an external API. Preferably, when a user attempts to connect, the XMPP server checks with the api to see if their username and password are correct, but I can also have the API keep the XMPP server up to date on new users, deleted users, pasword changes and so on. I see Openfire has a "user service" API. Not ideal, but it looks workable. Jingle, including relay and STUN. It's not at all clear to me if the Jingle Nodes plugin takes care of this. I'm a bit confused about what's required to set this up, and I'd rather know in advance than be confused along the way :). eg It seems like STUN servers require more than one IP address. Can Openfire do all this for me, including stun and media relay on a single machine? Is this hard to configure on EC2 with Openfire? What are the basic steps? Would this be easier with something else like, say Tigase? What about database? Should I use amazon's database service, or run a db on the same machine? Would the server be compatible with a service like http://www.siteuptime.com/ Thanks!

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• Is there any way to detect when nginx has completed a graceful shutdown?

  - by Daniel Vandersluis

  I have a ruby on rails application which is running on passenger and nginx, with one main webserver and multiple application servers. I am trying to update my deployment process in order to minimize (or ideally, remove) any downtime caused by the deployment. The main roadblock right now is that passenger takes some time to restart (ie. reload the application), so in order to get around this, I want to stagger my restarts so that only one app server gets restart at a time. In order to do this without losing any long running passenger processes, I am thinking I need to gracefully shutdown the app server's nginx instance, which will cause it to no longer accept new connections but continue to process the existing ones; as well, HAProxy will detect that the app server is down and route new requests to the other server. However, assuming that there is a long-running process, I am not sure how to detect when the graceful shutdown has completed so that I can start it back up. Since the shutdown is caused by sending a signal (ie. kill -QUIT $( cat /var/run/nginx.pid )), and the kill command will return immediately, I cannot combine commands (ie. kill ... && touch restarted), as the touch command will execute immediately, even if nginx hasn't completed its shutdown. Is there any good way to do this?

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• AD server within another network - DNS issues

  - by Harry Muscle

  Here's a quick summary of the environment I support: we have a domain (domain A) that has about 20 client computers. The domain server for this domain and all the clients sit within the network infrastructure of a larger domain (domain B). All the computers get their network settings via DHCP from domain B's servers. I have no control and am unable to make changes to anything to do with domain B. The problem I have is that currently in order for my domain's (domain A) clients to be able to resolve the domain server and the shares on it they have their DNS server IP address set to domain A's domain server (via the default GPO). Unfortunately when a laptop (windows and mac) gets taken home, they are still looking for the domain server as their DNS server and obviously can't access the internet correctly outside of our environment. Ideally I need a solution where the machines use domain A's domain server as their DNS when inside the office and use what ever DNS server DHCP gives them when they are outside the office. However, since I have no control over the office DHCP server, I'm not sure how this can be accomplished. Any help and advice that anyone can offer is highly appreciated. Thanks, Harry P.S. The solution I'm trying to find needs to require no involvement from the user.

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• DFS replication and the SYSTEM user (NTFS permissions)

  - by HopelessN00b

  Question for which I'm having trouble finding an answer on Google or Technet... Does granting the SYSTEM user permissions to DFS-shared files and folders have any effect on DFS replication? (And while we're at it, is there any good reason not to let SYSTEM have permissions to DFS-shared files?) It comes up because I have a collection of DFS namespaces and folders that I'm not able to make someone else's problem, and while troubleshooting a problem where one DFS replica just wasn't replicating with another for no discernible reason, I observed that the SYSTEM didn't have any permissions granted to any of the files or folders in the folder in question. So I set SYSTEM to have full control and propagated it down, and our DFS health diagnostic reports went from showing a backlog of ~80 files to a backlog of ~100,000... and things started replicating, including a number of files that had been missing on one server or the other (so more than just the permissions changes started replicating). Naturally, this made me curious as to whether or not DFS needs the SYSTEM account to have permissions to do its work, or if perhaps it was just any change to folder tree in question that prompted DFS to jump into action. If it matters, our DFS namespaces were set up under 2000/2003, and I have just recently finished upgrading all the servers to 2008 R2 or 2012 (with UAC enabled, blech), but have not yet gotten around to raising the DFS namespace functional levels to Server 2008. (And bonus points if anyone has an official Microsoft article on NTFS file permissions and the SYSTEM account as it pertains to DFS or network files.)

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• Godaddy domain and Bluehost web hosting

  - by Digital site

  I have a domain from Godaddy and web hosting at Bluehost. I want to make this work as some people say no need to transfer the domain from Godaddy to Bluehost. I was trying to find out how to get this work out by adding name servers for Bluehost ns1.bluehost.com ns2.bluehost.com at Godaddy. This works fine, but not sure if 100% OK yet. The reason why I say that is when I type in my address name on any browser this way: mydomain.com it doesn't work. Instead I get an error message stating that this server is not found or couldn't connect to it... However, when I write the domain name and include the www. prefix it works fine... The other problem is when I search in google or yahoo, the domain shows like this: mydomain.com , which is not really good because my clients think my site is down because of the error message, and most new people don't know if they have to add www. to the domain to work. I just want to make at least the domain works like this: mydomain.com

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• Multiple VM environment for developing/testing

  - by Hippo

  I was asked to create a setup for automated deployment, configuration, installation/updates of websites. A bunch of small websites will be bundled on one server. If more website will come up a new server will be created... I decided to us chef for this task. All servers will be running Ubuntu at the same version and configuration. The actual question: Everything needs to be tested properly before starting live deployment, so my question is: What is the best virtualisation tool to run multiple (5 - 10) virtual machines on a Ubuntu Laptop? Requirements: easy setup, fast (clone/snapshot of VMs) All VMs should be easily connected to the internet and should be able to communicate to each other (Open-Source / free would be great) So far I looked into: Virtual box is more for Desktop virtualisation, Cloning not possible, every new machine needs to be installed VMware Player Any suggestions? If there are any question about what I am doing please comment on this question, I will answer as soon as possible. This question is not about the actual set up, it is about a nice working environment.

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• Linux/Unix MTA with the smartest queue?

  - by threecheeseopera

  I am looking for an MTA that will allow me (a script, really) to proactively manage it's send queue in response to status codes returned by the remote servers I am delivering to. Basically, for each mail sent I would like to be able to react to the SMTP reply code returned by the remote server, ex. '250 OK', or to any error conditions like connection timeouts. Additionally, I would like to be able to manage the send queue moving forward based on this information, e.g. 'example.com has timed out the last 5 connection attempts, so no longer queue mail for recipients @example.com'. I am currently using postfix and perl to parse it's logs for this information, but I am playing a game of catchup that is prone to errors (out-of-order log entries etc.) and it's starting to get messy (some real ugly regexes ;). I really don't want to reinvent the wheel and use some language's smtp library; i would prefer to use a proven/fast/reliable MTA. I am however open to suggestions if what I need just isn't possible. Thanks for your help!

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