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• Capture traffic from SPAN and send it to a HyperV VM

  - by Josh Brower

  On a Server 2008 SP2 HyperV VM, I am trying to capture traffic from a SPAN. I know the SPAN is working, as I am able to capture the traffic on the Host OS, but when I try and capture traffic on the VM, with the SPAN being sent to a virtual adapter, I cannot seem to get it to work-- After doing some Googling, I have found that it might be because HyperV NICs cannot be put into promiscuous mode. (?) Any other thoughts? -Josh

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• Reinserted a RAID disk. Defined as foreign. Is import or clear the correct choice?

  - by Petrus

  I have re-inserted a RAID disk, on a DELL server with Windows Server 2008. The drive-status indicator was changing between a green and amber light, and the monitor gave the following message: There are offline or missing virtual drives with preserved cache. Please check the cables and ensure that all drives are present. Press any key to enter the configuration utility. I pressed a key and the PERC 6/I Integrated BIOS Configuration Utility showed that the RAID Status for that disk was Offline. After reinsertion of the disk the monitor is giving the following message: Foreign configuration(s) found on adapter. Press any key to continue or ‘C’ load the configuration utility, or press ‘F’ to import foreign configuration(s) and continue. After checking around on the net I am uncertain if I should choose import or clear. I cannot find out if an import means importing information from the array/system to the now foreign disk or the other way, i.e. importing information from the foreign disk to the array/system that was actually working fine. Also; if clear is a necessary thing to do ahead of a rebuild of that disk, or if clear means to clear the system to somehow make it ready to import the information from the foreign disk to the array/system, which is not what I want. I imagine that making the wrong choice here might be fatal. Please help clearing this out by telling what to choose and why.

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• squid closes the connection when presented with "401 Unauthorized"

  - by eduard-schnittlauch

  This is the conversation: == GET http://xy/z HTTP/1.1 <== HTTP/1.0 401 Unauthorized / Proxy-Connection: close When bypassing Squid (squid/3.0.STABLE6), I get the HTTP basic authentication prompt, as it should. Is there a specific setting that controls this behaviour, or is this actually a bug?

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• Getting Error while running RED5 server - class path resource [red5.xml] cannot be opened because it does not exist

  - by sunil221

  HI , I have installed java version "1.6.0_14" and Ant version 1.8.2 for red5 Server. when i am trying to run red5 server i am getting the following error please help Root: /usr/local/red5 Deploy type: bootstrap Logback selector: org.red5.logging.LoggingContextSelector Setting default logging context: default 11:27:39.838 [main] INFO org.red5.server.Launcher - Red5 Server 1.0.0 RC1 $Rev: 4171 $ (http://code.google.com/p/red5/) Red5 Server 1.0.0 RC1 $Rev: 4171 $ (http://code.google.com/p/red5/) SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/usr/local/red5/red5.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/usr/local/red5/lib/logback-classic-0.9.26.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. 11:27:39.994 [main] INFO o.s.c.s.FileSystemXmlApplicationContext - Refreshing org.springframework.context.support.FileSystemXmlApplicationContext@39d85f79: startup date [Mon Dec 21 11:27:39 EST 2009]; root of context hierarchy 11:27:40.149 [main] INFO o.s.b.f.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [red5.xml] Exception org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [red5.xml]; nested exception is java.io.FileNotFoundException: class path resource [red5.xml] cannot be opened because it does not exist Bootstrap complete

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• how to run multiple shell scripts in parallel

  - by tom smith

  I've got a few test scripts, each of which runs a test php app. Each script runs forever. So, cat.sh, dog.sh, and foo.sh, each run a php script, and each shell script runs the php app in a loop, so it runs forever, sleeping after each run. I'm trying to figure out how to run the scripts in parallel, and at the same time, see the output of the php apps in the stdout/term window. I thought, simply doing something like foo.sh > &2 dog.sh > &2 cat.sh > &2 in a shell script would be sufficient, but it's not working. foo.sh, runs foo.php once, and it runs correctly dog.sh, runs dog.php in a never ending loop. it runs as expected cat.sh, runs cat.php in a never ending loop *** this never runs!!! it appears that the shell script never gets to run cat.sh. if i run cat.sh by itself in a separate window/term, it runs as expected... thoughts/comments

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• Redmine on Redhat/CentOS 5 Without using virtual hosts

  - by flyclassic

  I've have followed all the steps to install Redmine on CentOS 5, except for the Apache part: http://www.redmine.org/projects/redmine/wiki/HowTo_install_Redmine_on_CentOS_5 I do not want to configure a virtualhost as we are not using virtual hosts. Can I configure Redmine to run with http://hostname/redmine? Apparently it doesn't work for my case. Redmine was extracted in to the webserver document root /var/www/html/ called /var/www/html/redmine What I did was added a redmine.conf to /etc/httpd/conf.d/ with the following configuration and restarted the server: <Location "/redmine"> Options Indexes ExecCGI FollowSymLinks -MultiViews Order allow,deny Allow from all AllowOverride all PassengerEnabled On RailsBaseURI /var/www/html/redmine RailsEnv production </Location> now i got this error Further information about the error may have been written to the application's log file. Please check it in order to analyse the problem. Error message: No such file or directory - config/environment.rb Exception class: Errno::ENOENT Application root: /var/www/html Where have I gone wrong?

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• WOL not working with two NIC's

  - by amazinghorse24

  We have recently moved from a windows 2003 server to an 08 R2. Running the program from the command line says that the magic packet has successfully been sent but it never actually reached the destination computer. We have two NIC's on the server. If I disable the NIC that isn't (currently) in use, WOL will work fine, but in the future we will need to use both NIC's. Also, we use MAC Addresses for WOL.

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• WGet or cURL: Mirror Site from http://site.com And No Internal Access

  - by alharaka

  I have tried wget -m wget -r and a whole bunch of variations. I am getting some of the images on http://site.com, one of the scripts, and none of the CSS, even with the fscking -p parameter. The only HTML page is index.html and there are several more referenced, so I am at a loss. curlmirror.pl on the cURL developers website does not seem to get the job done either. Is there something I am missing? I have tried different levels of recursion with only this URL, but I get the feeling I am missing something. Long story short, some school allows its students to submit web projects, but they want to know how they can collect everything for the instructor who will grade it, instead of him going to all the externally hsoted sites. UPDATE: I think I figured out the issue. I though the links to the other pages were in the index.html page that downloaded. I was way off. Turns out the footer of the page, which has all the navigation links, is handled by a JavaScript file Include.js, which reads JLSSiteMap.js and some other JS files to do page navigation and the like. As a result, wget does not pick up an other dependencies because a lot of this crap is handled not on web pages. How can I handle such a website? This is one of several problem cases. I assume little can be done if wget cannot parse JavaScript.

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• SSD redundancy via HDD

  - by Mascarpone

  Is there a way to guarantee redundancy to an SSD using an HDD? Raid 1 is the best choice to guarantee redundancy in HDDs, but SSDs are too expensive to guarantee redundancy via RAID. If I was to couple an SSD with an HDD, could I guarantee redundancy using the HDD as a failover device, and lazily mirroring the data on the HDD? (e.g.: every 5 minutes the data should be synchronized, rather than in real time like with Raid 1).

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• Backing up my data causes my server to crash using Symantec Backup Exec 12, or How I Came to Loathe

  - by Kyle Noland

  I have a Dell PowerEdge 2850 running Windows Server 2003. It is the primary file server for one of my clients. I have another server also running Windows Server 2003 that acts as the core media server for Symantec Backup Exec 12. I recently upgraded from Backup Exec 11d to 12. This upgrade was necessary because we also just upgraded from Exchange 2003 to Exchange 2007. After the upgrade I had to push-install the new version 12 Backup Exec Remote Agents to each of the servers I am backing up (about 6 total). 5 of my servers are doing just fine, faithfully completing backups every night. My file server routinely crashes. Observations: When the server crashes, it does not blue screen, it just locks up completely. Even the mouse is unresponsive. If you leave the server locked up long enough, it will eventually reboot itself and hang on the Windows splash screen. There is absolutely zero useful Event Viewer evidence of a problem. The logs go from routine logging to an Unexplained Shutdown Event the next morning when I have to hard reset the server to get it to boot. 90% of the time the server does not boot cleanly, it hangs on the Windows splash screen. I don't have any light to shed here. When the server hangs all I can do is hard reset it and try again. Even after a successful boot and chkdsk /r operation, if you reboot the machine, you have a 90% chance it won't back up again cleanly. The back story: This server started crashing during nightly backups about a month ago. I tried everything I could think of to troubleshoot the problem and eventually had to give up because I could not keep coming to the office at 4 AM to try to get the server back online. One Friday I got lucky and the server stayed up for its entire full backup. I took this opportunity to restore the full backup to a temporary server I set up and switched all my users to the temporary. Then I reloaded the ailing file server. I kept all my users on the temporary file server for about 3 weeks. I installed the same Backup Exec Remote Agent and Trend Micro A/V client on the temporary server that I was using on the regular file server. During this time, I had absolutely no problems backing up the temporary server. I tested the reloaded file server extensively. I rebooted the server once an hour every day for 3 weeks trying to make it fail. It never did. I felt confident that the reload was the answer to my problems. I moved all of the data from the temporary server back to the regular server. I got 3 nightly backups out of it before it locked up again and started the familiar failure to boot cleanly behavior. This weekend I decided to monitor the file server through the entire backup job. I RDPd into the file server and also into the server running Backup Exec. On the file server I opened the Task Manager so I could view the processes and watch CPU and memory usage. Everything was running smoothly for about 60GB worth of backup. Then I noticed that the byte count of the backup job in Backup Exec had stopped progressing. I looked back over at my RDP session into the file server, and I was getting real time updates about CPU and memory usage still - both nearly 0%, which is unusual. Backups usually hover around 40% usage for the duration of the backup job. Let me reiterate this point: The screen was refreshing and I was getting real time Task Manager updates - until I clicked on the Start menu. The screen went black and the server locked up. In truth, I think the server had already locked up, the video card just hadn't figured it out yet. I went back into my bag of trick: driving to the office and hard reseting the server over and over again when it hangs up at the Windows splash screen. I did this for 2 hours without getting a successful boot. I started panicking because I did not have a decent backup to use to get everything back onto the working temporary file server. Once I exhausted everything I knew to do, I took a deep breath, booted to the Windows Server 2003 CD and performed a repair installation of Windows. The server came back up fine, with all of my data intact. I can now reboot the server at will and it will come back up cleanly. The problem is that I'm afraid as soon as I try to back that data up again I will back at square one. So let me sum things up: Here is what I've done so far to troubleshoot this server: Deleted and recreated the RAID 5 sets. Initialized the drives. Reloaded the server with a fresh Server 2003 install. Confirmed with Dell that I have installed the latest, Dell approved BIOS and NIC drivers. Uninstalled / reinstalled the Backup Exec Remote Agent. Uninstalled the Trend Micro A/V client. Configured the server not to reboot itself after a blue screen so I can see any stop error. I used to think the server was blue screening, but since I enabled this setting I now know that the server just completely locks up. Run chkdsk /r from the Windows Recovery Console. Several errors were found and corrected, but did not help my problem. Help confirm or deny the following assumptions: There are two problems at work here. Why the server is locking up in the first place, and why the server won't boot cleanly after a lockup. This is ultimately a software problem. The server works fine and can be rebooted cleanly all day long - until the first lockup - following a fresh OS load or even a Repair installation. This is not a problem with Backup Exec in general. All of my other servers back up just fine. For the record, all of the other servers run Server 2003, and some of them house more data than the file server in question here. Any help is appreciated. The irony is almost too much to bear. Backing up my data is what is jeopardizing it.

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• Apache2, making my site publicly available

  - by Shackler

  Hello, I want to make my apache 2 development server public to the internet, it is a Django based website. Here is my apache2 config: <VirtualHost *:80> Alias /media /home/user/myproject/statics Alias /admin_media /home/myuser/django/Django-1.1.1/django/contrib/admin/media WSGIScriptAlias / /home/myuser/myproject/myproject_wsgi.py WSGIDaemonProcess myproject user=myuser group=myuser threads=25 WSGIProcessGroup myproject </VirtualHost> When I do netstat -lntup I get: Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN - tcp6 0 0 :::80 :::* LISTEN - tcp6 0 0 :::22 :::* LISTEN - tcp6 0 0 ::1:631 :::* LISTEN - udp 0 0 0.0.0.0:5353 0.0.0.0:* - udp 0 0 0.0.0.0:38582 0.0.0.0:* I connect with ADSL thus I am behind a router. For this I have made my computer DMZ enabled to my machine. What can be the problem? When I try to login with my ip, I get my routers config page, when a friend tries to connect to me from internet, he gets "not authorized".

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• SSL_CLIENT_CERT_CHAIN not being passed to backend server

  - by nidkil

  I have client certificate configured and working in Apache. I want to pass the PEM-encoded X.509 certificates of the client to the backend server. I tried with the SSLOptions +ExportCertData. This does nothing at all, while the documentation states it should add SSL_SERVER_CERT, SSL_CLIENT_CERT and SSL_CLIENT_CERT_CHAINn (with n = 0,1,2,..) as headers. Any ideas why this option is not working? I then tried setting the headers myself using RequestHeader. This works fine for all variables except SSL_CLIENT_CERT_CHAIN. It shows null in the header. Any ideas why the certificate chain is not being filled? This is my first Apache configuration: <VirtualHost 192.168.56.100:443> ServerName www.test.org ServerAdmin webmaster@localhost DocumentRoot /var/www ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined SSLEngine on SSLProxyEngine on SSLCertificateFile /etc/apache2/ssl/certs/www.test.org.crt SSLCertificateKeyFile /etc/apache2/ssl/private/www.test.org.key SSLCACertificateFile /etc/apache2/ssl/ca/ca.crt <Proxy *> AddDefaultCharset Off Order deny,allow Allow from all </Proxy> <Location /carbon> ProxyPass http://www.test.org:9763/carbon ProxyPassReverse http://www.test.org:9763/carbon </Location> <Location /services/GbTestProxy> SSLVerifyClient require SSLVerifyDepth 5 SSLOptions +ExportCertData ProxyPass http://www.test.org:8888/services/GbTestProxy ProxyPassReverse http://www.test.org:8888/services/GbTestProxy </Location> </VirtualHost> This is my second Apache configuration: <VirtualHost 192.168.56.100:443> ServerName www.test.org ServerAdmin webmaster@localhost DocumentRoot /var/www ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined SSLEngine on SSLProxyEngine on SSLCertificateFile /etc/apache2/ssl/certs/www.test.org.crt SSLCertificateKeyFile /etc/apache2/ssl/private/www.test.org.key SSLCACertificateFile /etc/apache2/ssl/ca/ca.crt <Proxy *> AddDefaultCharset Off Order deny,allow Allow from all </Proxy> <Location /carbon> ProxyPass http://www.test.org:9763/carbon ProxyPassReverse http://www.test.org:9763/carbon </Location> <Location /services/GbTestProxy> SSLVerifyClient require SSLVerifyDepth 5 RequestHeader set SSL_CLIENT_S_DN "%{SSL_CLIENT_S_DN}s" RequestHeader set SSL_CLIENT_I_DN "%{SSL_CLIENT_I_DN}s" RequestHeader set SSL_CLIENT_S_DN_CN "%{SSL_SERVER_S_DN_CN}s" RequestHeader set SSL_SERVER_S_DN_OU "%{SSL_SERVER_S_DN_OU}s" RequestHeader set SSL_CLIENT_CERT "%{SSL_CLIENT_CERT}s" RequestHeader set SSL_CLIENT_CERT_CHAIN0 "%{SSL_CLIENT_CERT_CHAIN0}s" RequestHeader set SSL_CLIENT_CERT_CHAIN1 "%{SSL_CLIENT_CERT_CHAIN1}s" RequestHeader set SSL_CLIENT_VERIFY "%{SSL_CLIENT_VERIFY}s" ProxyPass http://www.test.org:8888/services/GbTestProxy ProxyPassReverse http://www.test.org:8888/services/GbTestProxy </Location> </VirtualHost> Hope someone can help. Regards, nidkil

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• Postfix not delivering email using Maildir

  - by Greg K

  I've followed this guide to get postfix set up. I've not completed it yet, as from sending test emails, email is no longer being delivered since switching to Maildir from mbox. I have created a Maildir directory with cur, new and tmp sub directories. ~$ ll drwxrwxr-x 5 greg greg 4096 2012-07-07 16:40 Maildir/ ~$ ll Maildir/ drwxrwxr-x 2 greg greg 4096 2012-07-07 16:40 cur drwxrwxr-x 2 greg greg 4096 2012-07-07 16:40 new drwxrwxr-x 2 greg greg 4096 2012-07-07 16:40 tmp Send a test email. ~$ netcat mail.example.com 25 220 ubuntu ESMTP Postfix (Ubuntu) ehlo example.com 250-ubuntu 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from: [email protected] 250 2.1.0 Ok rcpt to: [email protected] 250 2.1.5 Ok data 354 End data with <CR><LF>.<CR><LF> Subject: test email Hi, Just testing. . 250 2.0.0 Ok: queued as 56B541EA53 quit 221 2.0.0 Bye Check the mail queue. ~$ mailq Mail queue is empty Check if mail has been delivered. ~$ ls -l Maildir/new total 0 Some postfix settings: ~$ sudo postconf home_mailbox home_mailbox = Maildir/ ~$ sudo postconf mailbox_command mailbox_command = /var/log/mail.log Jul 7 16:57:33 li305-246 postfix/smtpd[21039]: connect from example.com[178.79.168.xxx] Jul 7 16:58:14 li305-246 postfix/smtpd[21039]: 56B541EA53: client=example.com[178.79.168.xxx] Jul 7 16:58:33 li305-246 postfix/cleanup[21042]: 56B541EA53: message-id=<20120707155814.56B541EA53@ubuntu> Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 56B541EA53: from=<[email protected]>, size=321, nrcpt=1 (queue active) Jul 7 16:58:33 li305-246 postfix/smtp[21043]: 56B541EA53: to=<[email protected]>, relay=none, delay=30, delays=30/0.01/0/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself) Jul 7 16:58:33 li305-246 postfix/cleanup[21042]: 1F68B1EA55: message-id=<20120707155833.1F68B1EA55@ubuntu> Jul 7 16:58:33 li305-246 postfix/bounce[21044]: 56B541EA53: sender non-delivery notification: 1F68B1EA55 Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 1F68B1EA55: from=<>, size=1999, nrcpt=1 (queue active) Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 56B541EA53: removed Jul 7 16:58:33 li305-246 postfix/smtp[21043]: 1F68B1EA55: to=<[email protected]>, relay=none, delay=0, delays=0/0/0/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself) Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 1F68B1EA55: removed Jul 7 16:58:36 li305-246 postfix/smtpd[21039]: disconnect from domain.me[178.79.168.xxx] Jul 7 17:10:38 li305-246 postfix/master[20878]: terminating on signal 15 Jul 7 17:10:39 li305-246 postfix/master[21254]: daemon started -- version 2.8.5, configuration /etc/postfix Any ideas?

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• Using Static Public IPs and Private DHCP IPs on the Same Router

  - by Andrew Larsson

  I have a subnet of public IP addresses that my ISP has provided me with. They are routed through my router (how profound) that has a a static IP. I have successfully assigned the IPs from that subnet to various devices on my network. This works just fine, they get their own public IP, they can access the Internet, and the Internet can access them. However, I would like to also assign some private IPs on my network through that same router and put them behind NAT. Is this even possible? Could a VLAN be of use? I would like to avoid putting another router on the network, which makes this is quite an awkward question.

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• Re-Route Mail to a port other than 25

  - by Ken

  Is there a way to route mail to another port? I have an email account attached to my laptop that I'd like to be able to send and receive mail from. Due to mobility, I'll be passing through various networks that will probably block this port. My dynamic DNS provider allows me to utilize web-forwards for MX domains; is this possible? where I can web forward to a domain:port which is managed by my DNS provider when I traverse between networks. If not, is there a way? Of course i could use web-mail or relay-forwarding from my home server, but that's not geeky enough.

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• Centralized Windows/Mac Patch Management that is easy to use

  - by BiggsTRC

  I'm looking for advice on what patch management solutions you would recommend based upon your experience. I'm also looking for which ones you would not recommend based upon your experience. We have a mixed network of Windows and Mac clients. Our central servers are all Windows servers, although I have considered putting in a Mac server to better handle our Mac clients. The issue we are facing currently is that we need to maintain the patches on all of our third-party applications. Right now we use WSUS, which handles with patching of Windows and some Microsoft products but that is about it. I need something to cover the other applications, specifically things like Adobe products (Reader, Flash, Dreamweaver, etc.) Our network isn't that big (maybe 200 clients) and I don't have a person to dedicate just to patching and maintaining a patch management solution. Thus very large and complicated solutions like System Center are most likely out. I have recently been looking at Dell's Kace K1000 solution (http://www.kace.com/products/systems-management-appliance/). It seems simple and it provides a lot of tools in one package that I would like/need as well. I like the fact that it is self-contained in an appliance and that it is designed for solutions like mine. However, I'm not sure if this is the best solution. I've also looked some at Shavlik's Netchk solution (http://www.shavlik.com/netchk-protect.aspx) but I don't need an anti-virus product. However, it looks like they might have a very good patch database. My question is this: What are your thoughts on these to products? Are there better products out there? Are there issues that I'm not considering? I want something that is very good at patching a broad range of products, that is simple to use, that takes a minimal amount of management (like WSUS), and that (hopefully) works with Mac and Windows.

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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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• Most common account names used in ssh brute force attacks

  - by Charles Stewart

  Does anyone maintain lists of the most frequently guessed account names that are used by attackers brute-forcing ssh? For your amusement, from my main server's logs over the last month (43 313 failed ssh attempts), with root not getting as far as sshd: cas@txtproof:~$ grep -e sshd /var/log/auth* | awk ' { print $8 }' | sort | uniq -c | sort | tail -n 13 32 administrator 32 stephen 34 administration 34 sales 34 user 35 matt 35 postgres 38 mysql 42 oracle 44 guest 86 test 90 admin 16513 checking

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• Load-balancer options

  - by toolkit

  I am looking at a number of possible options for load-balancing. So far, I am constrained to the following options: DNS server load-balancer, balancing to a cluster of tomcat servers, with terracotta for session replication. Pros - don't have to buy new kit. Cons - DNS lb can keep directing to a broken server. Hardware load-balancer, direct to cluster of tomcat servers. Pros - could have second box for failover lb. Cons - expense. Apache server load-balancer. Pros - apache's lb polls for broken servers. Cons - apache server is single point of failure, plus need to buy another server. Are there any other options I should consider? Thanks. Update: Thanks for all the answers so far +1's all round. Not accepting an answer yet, to keep more ideas coming.

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• Distributing Files using a Group Policy on Windows Server 2003

  - by tonedeath

  A piece of software that we use at our office has recently moved to a new licensing system. This means that from now on a new set of license key files will need to be distributed to each of our 25 client installations every year. All of the clients run XP and are part of an AD domain controlled by a Windows 2003 DC. I'm already using group policies to deploy software updates. I gather that this is possible with Group Policy Preferences in Server 2008. I'm just looking for a good method using Server 2003. The same set of files need copying to each client. I also have them hosted on a network share accessible by each client. I'm more of a *nix person, so I'm not particularly up on scripting in a Windows environment.

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• pfSense command to delete stale SAD

  - by Justin Shin

  I'm experiencing an issue with pfSense where duplicate SAD's are getting created after rekeying, forcing me to manually go ahead and delete the old SAD's. It's not a huge issue but it does get to be a problem once I let it go for a few days. I just installed the cron package for pfSense so I could run a script to identify stale SAD's and delete them but I am not that familiar with BSD or pfSense. Is there a command that enumerates SAD's and their properties, and another that can delete by ID? I can form the conditional parts of the script but I do not know the commands to run. I would imagine it would be something like: Enumerate SAD's Identify Duplicate ones by matching Source and destination IP's Find the one with the larger bytes transferred Delete

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• ghettoVCB issue

  - by romgo75

  I have setup a ghettoVCB script in order to backup three VM. I put it in a crontab but I have an issue. In my backup folder I have 3 different folders, one for each VM. In each folder I have the following files: -rw-r--r-- 1 root root 1263 Mar 17 01:51 vm1-2010-03-16--2.gz -rw-r--r-- 1 root root 1263 Mar 17 00:41 vm1-2010-03-16--3.gz -rw-r--r-- 1 root root 1261 Mar 18 01:22 vm1-2010-03-17--1.gz drwxr-xr-x 1 root root 980 Mar 19 23:39 vm1-2010-03-19 The problem is the last folder. It seems that a backup didn't finish the process. When I read the logs concerning this folder I get: 2010-03-19 23:00:01 -- info: CONFIG - VM_BACKUP_VOLUME = /vmfs/volumes/datastore1/backup/ 2010-03-19 23:00:01 -- info: CONFIG - VM_BACKUP_ROTATION_COUNT = 3 2010-03-19 23:00:01 -- info: CONFIG - DISK_BACKUP_FORMAT = zeroedthick 2010-03-19 23:00:01 -- info: CONFIG - ADAPTER_FORMAT = buslogic 2010-03-19 23:00:01 -- info: CONFIG - POWER_VM_DOWN_BEFORE_BACKUP = 0 2010-03-19 23:00:01 -- info: CONFIG - ENABLE_HARD_POWER_OFF = 0 2010-03-19 23:00:01 -- info: CONFIG - ITER_TO_WAIT_SHUTDOWN = 3 2010-03-19 23:00:01 -- info: CONFIG - POWER_DOWN_TIMEOUT = 5 2010-03-19 23:00:01 -- info: CONFIG - SNAPSHOT_TIMEOUT = 15 2010-03-19 23:00:01 -- info: CONFIG - LOG_LEVEL = info 2010-03-19 23:00:01 -- info: CONFIG - BACKUP_LOG_OUTPUT = stdout 2010-03-19 23:00:01 -- info: CONFIG - VM_SNAPSHOT_MEMORY = 0 2010-03-19 23:00:01 -- info: CONFIG - VM_SNAPSHOT_QUIESCE = 0 2010-03-19 23:00:01 -- info: CONFIG - VMDK_FILES_TO_BACKUP = all http://... 2010-03-19 23:39:35 -- info: Initiate backup for vm1 2010-03-19 23:39:35 -- info: Creating Snapshot "ghettoVCB-snapshot-2010-03-19" for vm1 Destination disk format: VMFS zeroedthick Cloning disk '/vmfs/volumes/datastore1/vm1/vm1_1.vmdk'... ^MClone: 0% done.^MClone: 1% done.^MClone: 2% done.^MClone: 3% done.^MClone: 4% done.^MClone: 5% done.^MClone: 6% done.^MClone: 7% done.^MClone: 8% done.^MClone: 9% done.^MClone Failed to clone disk : The file already exists (39). Destination disk format: VMFS zeroedthick Cloning disk '/vmfs/volumes/datastore1/vm1/vm1.vmdk'... 2010-03-20 00:46:20 -- info: Removing snapshot from vm1 ... one: 7% done.^MClone: 8% done.^MClone: 9% done.^MClone: 10% done.^MClone: 11% done.^MClone: 12% done.^MClone: 13% done.^MClone: 14% done.^MClone: 15% done.^MClone: 16% done.^MCl 2010-03-19 23:51:19 -- info: Removing snapshot from vm1 ... I can't run ghettoVCB anymore because the VM has a snapshot which has not been deleted. I know how to delete the snapshot, but I don't know why the VCB script is not able to handle rotation of the VM backups? Any ideas? Thanks!

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• Autoscale Rackspace Cloud, Scalr or DIY?

  - by Andre Jay Marcelo-Tanner

  I'm looking into creating a setup on Rackspace Cloud that will allow me to autoscale my webservers (no db) on demand. Preferably using something like response time. I've read into configuration tools like Puppet/Chef, but I'm thinking I can just launch from prepared server images that are ready to go. Is there any tool out there already that can monitor my existing node response times and then launch or scale up new ones based upon certain variables like average X load over Y time? I see there are commercial offerings like Scalr, Rightscale, but how would I do this myself?

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• built in "Offer Remote Assistance" not working because of permissions

  - by Caleb_S

  I'm trying to enable permissions for a user on a Windows7 machine to use the built in feature called "Offer Remote Assistance" or "Windows Remote Assistance". This feature works fine if the user is added to the "domain admins" security group, but for security reasons, I cannot leave him in that group. This is within a SBS2003 Domain. I have added the user and also a group that he is apart of to the Small Business Server Remote Assistance Policy, after following some documentation I was able to find, but this has not worked. Can you tell me how to enable this feature for this user and or a user group? http://content.screencast.com/users/CASEIT/folders/Forum%20Pictures/media/2a518bc9-4184-4520-8b76-cdf46555f568/2011-08-18_1330.png

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• update all the servers through one virtual servers using Storage are network virtual machine

  - by Mr.Calm

  Using UBUNTU and Virtal Box by Oracle, and Using this script to start nginx in Virtual Box, and placing it in Virtual box inside~/init.d #!/bin/bash ### BEGIN INIT INFO # Provides: Testinit # Required-Start: # Required-Stop: # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start daemon at boot time # Description: Enable service provided by daemon. ### END INIT INFO # RETVAL=0; start() { CurrentTime=$(date +%d/%m/%Y"-"%I:%M:%S) ./usr/local/nginx/sbin/nginx echo "Current Time:"$CurrentTime>>/home/server/Desktop/NginxLogs.txt echo "!Starting nginx!" >>/home/server/Desktop/NginxLogs.txt Like this i want to write auto script (setup.sh file) and place that script in all virtual boxes inside my system, for example 8 virtual boxes and in all Virtual boxes NGINX is installed. Now, The thing is i am facing problem when i want change something in setup.sh i have to go to each and every virtual box, or Communicate each Virtual machine through SSH from my main machine. i am thinking to write another script (ex: Update.sh),and inside that script we give one path of file which is saved and recently edited in main machine (ex: DummySetup.sh). as soon as i run that script all the setup.sh files which are saved in each virtual machines should update the change or replace contents with DummySetup.sh's contents. Hope this is possible thing. Help would be appreciated.Thanking you

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