visualsvn server - Page 1174

Failed reverse DNS and SPF only when using Thunderbird!

- by TruMan1

I have a reverse DNS and SPF records correctly setup for my mail server. Sending webmail from it works perfect. The problem is when Thunderbird sends out emails, it is using the client's IP address for the hostname. I have SMTP authentication and specified my mail server's as the outgoing SMTP. Mail is being sent, but it is not "signing" the email with the mail server's IP address.. it is using the client's. Is there any way to fix this? This is the spam error I get when sending from Thunderbird: Spam: Reverse DNS Lookup, SPF_SoftFail

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Protecting Windows SMTP service against the spam

- by MainMa

Hi, I'm trying to use a Windows SMTP service on Windows Server 2008, but I can't understand how to secure it. Basically, if I open firewall for local network IPs only for %windir%\system32\inetsrv\inetinfo.exe and keep Connection and Relay settings of SMTP Virtual Server to "All except the list below" (with an empty list), a few minutes later I see spam appearing in Queue directory. (Why? Isn't firewall intended to block this?) Now, if I set Connection or Relay to "Only the list below", specifying the range of local IPs, I can't use the SMTP server nevermore (a "Unable to read data from the transport connection: net_io_connectionclosed." exception is thrown). So what is the way to get rid of spam from internet but let send mails from local network?

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Rsync plugin to many local wordpress installs via script or cli

- by Nick Abbey

I am maintaining a large number of wordpress installs on a production server, and we are looking to deploy InfiniteWP for managing these installs. I am looking for a way to script the distribution of the plugin folder to all of these installs. On server wp-prod, all sites are stored in /srv//site/ The plugin needs to be copied from ~/iws-plugin to /srv//site/wp-content/plugins/ Here's some pseudo code to explain what I need to do: array dirs = <all folders in /srv> for each d in dirs if exits "/srv/d/site/wp-content/plugins" rsync -avzh --log-file=~/d.log ~/plugin_base_folder /srv/d/site/wp-content/plugins/ else touch d.log echo 'plugin folder for "d" not found' >> ~/d.log end end I just don't know how to make it happen from the cli or via bash. I can (and will) tinker with a bash or ruby script on my test server, but I'm thinking the command-line-fu here on SF is strong enough to handle this issue much more quickly than I can hack together a solution. Thanks!

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Netboot Intel Macs without BSDP

- by notpeter

I have a netboot setup with DeployStudio that works great in my lab, but doesn't work on our main network. After some digging, I believe it's because our network admins are filtering BSDP (Boot Service Discovery Protocol) on our subnet at the switch level. Is it possible to hard code which server my clients (early 2007 iMac Core2Duos) should boot from without relying on BSDP? Perhaps relevant details: I do not have control over switch configs or DHCP settings. Client and server are running 10.6 Snow Leopard. The clients see the netboot server advertising itself in the 'Startup Disk' system preferences pane, but when I go to netboot it just leaves me with a flashing globe.

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enable/disable ntp service on ubuntu 12.04

- by ntphelp

Our application runs on Ubuntu 12.04 Precise. On this server, we have both ntpdate and ntp. How to enable and disable the NTP service on-demand? I tried # sudo update-rc.d -f ntp remove/default and # sudo update-rc.d ntp enable/disable commands, but when I reboot server the ntp service starts running! I suspect ntpdate is starting ntp service on reboot. I removed ntpdate package from one of my experimental server, then ntp didn't start on reboot after issuing: # update-rc.d ntp disable Is there a way to control this? or is there way to permanently disable ntpdate?

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Virtualization deployment for datacenter

- by bogha

Hi, my company is going to deploy an IT Infrastructure on a virtual platform, can you please help me with the following: 1- which one do you recommend, Cisco Unified computing system ( cisco + emc + vmware )or HP Blades( virtualization solution + HP Storage )? 2- i Need to install a DNS Server, Web server, cpanel for managing hosting packages and Microsoft layer of product for usingg in the corporate infrastructur ( active directory, Local DNS, Exchange server, DHCP, Global catalog ) what is the minimum requirments for these servers ( in terms of CPU and Memory ) . 3- what is the best way to implement a redundant solution in a virtual environment. thank you

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FTP transfer timeouts while uploading small files

- by Hamed Momeni

I have this problem that when I need to transfer some files (mostly small files < 100KB) the connections time out. Well actually it uploads one file and it fails on the next until my client reconnects to the server and the same thing happens over and over again. I googled the problem and some said that switching from passive mode to active mode could solve the it but it didn't work for me. Even continuously pinging the server to keep the connection alive was to no avail. P.S. I have root access to the server. Update: I'm running ProFTPD on a CentOS vps. I tried a few clients (FireFTP, FileZilla) all having the same problem.

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What is the meaning of these BIND log messages?

- by javano

Please clarify for me the meaning of the following BIND messages in syslog, these are from a DNS resolver. Whilst I think I understand them, I don't know what all four mean, so I think it's best if someone will clarify for me: 1. Oct 14 18:36:34 resolver1 named[14958]: lame server resolving 'arrivatn.co.uk' (in 'arrivatn.co.uk'?): 212.103.224.56#53 2. Oct 14 18:36:36 resolver1 named[14958]: unexpected RCODE (SERVFAIL) resolving '148.128.183.212.in-addr.arpa/PTR/IN': 212.183.136.42#53 4. Oct 14 18:38:49 resolver1 named[14958]: unexpected RCODE (REFUSED) resolving 'internal-server.ournetwork.com/AAAA/IN': auth.dns.server.ip#53 3. Oct 14 18:39:05 resolver1 named[14958]: client 89.187.127.110#42034: query (cache) 'image.sinajs.cn/A/IN' denied Thank you.

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How can i get SSO for alfresco on windows-7 to work?

- by Maarten

domain AD on windows 2008 R2, linux server alfresco 3.4c, windows-7 client. I'm trying to get automatically logged into alfresco from the windows-7 client. I've looked with wireshark to see what happens: 1. Client goes to /alfresco 2. Server sends Redirect to page 3. Client goes to Redirected page 4. Server sends a WWW-Authenticate: Negotiate header 5. Client DOES NOT respond to this how can i configure the windows-7 client (or the AD domain) so that the client will in fact engage with the SPNEGO protocol? instead of just asking for user credentials? (the user is logged in through kerberos in the domain.)

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How to cache streaming video and silverlight with squid windows reverse proxy

- by V. Romanov

We have an intranet web server running a silverlight application (ACTUS media monitor if anyone cares to know). The server is used to record video and stream it to clients through a CDN solution. We want to put a reverse proxy in between the server and CDN provider in order to remove the office network bottleneck that's currently strangling us. I've set up SQUID for windows on a separate machine outside the network using squid BasicAccelerator configuration setting. It seems to work as far as the reverse proxy is concerned, requests are forwarded and the application is working but it doesn't seem to cache anything (no space is used on the drive where squid is installed). I found to explicit setting to turn caching on in squid, so i assume it's on by default. Perhaps I need some other trick to make the video and/or silverlight cacheable? Any help will be appreciated. Any info you need to help me will be provided at once. Thanks in advance!

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In TCP/IP terms, how does a download speed limiter in an office work?

- by TessellatingHeckler

Assume an office of people, they want to limit HTTP downloads to a max of 40% bandwidth of their internet connection speed so that it doesn't block other traffic. We say "it's not supported in your firewall", and they say the inevitable line "we used to be able to do it with our Netgear/DLink/DrayTek". Thinking about it, a download is like this: HTTP GET request Server sends file data as TCP packets Client acknowledges receipt of TCP packets Repeat until download finished. The speed is determined by how fast the server sends data to you, and how fast you acknowledge it. So, to limit download speed, you have two choices: 1) Instruct the server to send data to you more slowly - and I don't think there's any protocol feature to request that in TCP or HTTP. 2) Acknowledge packets more slowly by limiting your upload speed, and also ruin your upload speed. How do devices do this limiting? Is there a standard way?

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MySQL taking a long time to start

- by Dscoduc

I'm running Windows Server 2008 with MySQL installed and every time I reboot the server the MySQL Service doesn't start right away. A look into the Windows Eventlog shows that the MySQL Service was hung at startup. Looking at the Services.msc console shows the service state at Starting... Eventually, like 10 minutes, the MySQL Service actually finishes the startup process and the database becomes available for my Wordpress server... I looked at the MySQL .err files and didn't find anything that would indicate a delay in the statup process... Can anyone suggest a way to determine what is causing the delay, and more importantly, how to prevent the delay in the MySQL Startup?

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postfix, TLS and rapidssl - "verify error:num=19:unable to get local issuer certificate"

- by technobuddha

I have been googeling for days! I have a cert from rapidssl. I read up that the problem with num=20, is that indicates it doesn't know the issuer, or doesn't know the ROOT Cert, right? I run this command: openssl s_client -showcerts -connect smtp.server.com:465 I get this error: verify error:num=19:self signed certificate in certificate chain Here is what i have in my postfix main.cf, and what i have done: smtpd_tls_key_file = /etc/postfix/ssl/smtp.server.com.rsa.key (this is the private key) smtpd_tls_cert_file = /etc/postfix/ssl/smtp.server.com.PUBLIC.key (this is the public key given to me by rapidssl) smtpd_tls_CAfile = /etc/postfix/ssl/combo.csr.key This key has both the intermediate keys ON TOP, and the ROOT KEY on the bottom. Here is the Intermediate keys: https://knowledge.geotrust.com/library/VERISIGN/ALL_OTHER/geotrust%20ca/GT_QuickSSL_and_Premium_and_Trial_intermediate_bundle.pem and here is the root CERT: http://www.geotrust.com/resources/root_certificates/certificates/Equifax_Secure_Certificate_Authority.cer anyone know how to use rapidssl certs?

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Lighttpd not starting - no error

- by Furism

I recently installed Lighttpd on Ubuntu Server 10.04 x86_64 and created several websites. What I do is include /etc/lighttpd/vhost.d/*.conf and put a configuration file for each website in that directory. The problem I have is when I "service lighttpd start" I get the message that the service started, there is no error message: root@178-33-104-210:~# service lighttpd start Syntax OK * Starting web server lighttpd [ OK ] But then if I take a look at the services listening, Lighttpd is nowhere to be seen: root@178-33-104-210:~# netstat -tap Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 localhost:mysql *:* LISTEN 829/mysqld tcp 0 0 *:ftp *:* LISTEN 737/vsftpd tcp 0 0 *:ssh *:* LISTEN 739/sshd tcp6 0 0 [::]:ssh [::]:* LISTEN 739/sshd So I'm looking at ways I could troubleshoot this. I checked in /var/log/lighttpd/error.log and there's nothing in it. Edit: Sorry, I indicated I use CentOS but it's actually Ubuntu Server (I usually use CentOS but had to go with Ubuntu for that one).

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php rsync with exec() not working

- by mojeime

Why this: rsync -avz -e ssh /home/userneme/folder [email protected]:/var/www/folder works from cronjob and this: exec("rsync -avz -e ssh /home/userneme/folder [email protected]:/var/www/folder"); doesn't work. I know exec is working because i have a few places in my appp that do convercion from pdf to jpg with ImageMagick (exec). SOLVED exec is working OK it was a permission issue on remote server. "Local" server is shared reseller account and remote server is my first VPS Ubuntu 10.10 LAMP box. If only I had a system administrator since i'm just a software developer forced to do this and i stink at it :) Thank You all!

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Is it still "wrong" to require TLS on incoming SMTP messages

- by jackweirdy

According to the STARTTLS Spec Section 5: A publicly-referenced SMTP server MUST NOT require use of the STARTTLS extension in order to deliver mail locally. This rule prevents the STARTTLS extension from damaging the interoperability of the Internet's SMTP infrastructure. A publicly-referenced SMTP server is an SMTP server which runs on port 25 of an Internet host listed in the MX record (or A record if an MX record is not present) for the domain name on the right hand side of an Internet mail address. However, this spec was written in 1999, and considering it's 2014, I'd expect most SMTP clients, servers, and relays to have some kind of implementation of STARTTLS. How much email can I expect to lose if I require TLS for incoming messages?

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Ping: Destination Host Unreachable, from the destination host itself

- by phunehehe

I have a server that responds in a weird way to ping: $ ping hostname.com PING hostname.com (<IP address>) 56(84) bytes of data. From hostname.com (<IP address>) icmp_seq=1 Destination Host Unreachable From hostname.com (<IP address>) icmp_seq=2 Destination Host Unreachable From hostname.com (<IP address>) icmp_seq=3 Destination Host Unreachable From hostname.com (<IP address>) icmp_seq=4 Destination Host Unreachable I'm confused, as the messages come from the server that I want to ping, and at the same time it's saying Destination Host (itself) Unreachable. Pinging by IP address yields the same result. The server is online and operating normally. What could be the cause?

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Start tomcat webapp with root privileges

- by Hagay Myr

I built a webapp that uses libpcap (via jpcap). In order to be able to get the network interfaces list or to bind to a network interface, the application (in this case a webaap that runs from tomcat server) must be running with root privileges. During development I simply ran Eclipse with root privileges (sudo eclipse) and my webapp worked just fine with Eclipse's local tomcat server. However, when I try to deploy my webapp to the "real" tomcat server, it isn't working. I Also tried to start the tomcat6 service with sudo and changed the TOMCAT6_USER definition (defined in /etc/init.d/tomcat6) from "tomcat6" to "root" but it made no difference. What should I do to make it work?

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How to set up hosting on Heroku and email forwarders on a WHM (cPanel)?

- by matija

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wbadmin incremental system state backup

- by user74513

I am doing system state backups on a Windows Server 2008 R2 Enterprise (Service Pack 1) machine and expected the backups after the first one to be incremental. However with each backup a new directory with vhd files are created and the vhd files are almost the same size as the with the first backup. So the backups does not seem to be incremental. I used the following command to do the backup: wbadmin start systemstatebackup -backupTarget:f: I played around with the settings under "Configure Performance Settings" in the Windows Server Backup plugin in Server Manager but according to the description at the top of the dialog these settings are not applied to system state backups. Are there any settings available for wbadmin system state backup to make the backups incremental?

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Using old RAID configured disk after new disk has been used in the controller

- by Narendra

I have Dell Poweredge T100 server with Dell SAS 6 and two hard disk on RAID 1. Last week the server died including one RAID 1 hard disk. We sent the server for repair and the problem with PSU was fixed. But the repair guys also checked the RAID controller by configuring new RAID with their test hard disk. Now if I install one working RAID 1 disk and one new disk, will the RAID controller let me continue my old RAID 1 and resync the new disk and continue? What I fear is the RAID controller will want the test hard from repair guys. Thus I have to re configure RAID 1 forcing me to wipe the working disc. If so, I've to backup the working disc, reconfigure RAID 1 and reinstall? Or is there better way? Note: I'm using DELL SAS confiugratio utility to manage RAID. (Press CTRL+C after BIOS)

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mod_access for lighttpd causes a 403 error for all POST requests

- by Sam

I have found on my debian server that running the lighttpd module mod_access is causing the server to response with a 403 to all POST requests. It's very odd as I have two servers, one is running as I'd expect and the other keeps returning these 403's. They are running identical configs for lighttpd and php. My lighttpd.conf is: https://gist.github.com/4269500 There is also one other custom conf: https://gist.github.com/4269508 I've opened up the servers for requests until I get this fixed, the server that works is http://mercury.isitup.org/ and the one that fails is http://venus.isitup.org/. After working out that disabling mod_access resolves the problem I greped all my lighttpd configs for uses of it (docs). Disabling each line I found didn't help, leading me to think this is perhaps some default behaviour (or bug?)... Has anyone come across this before or know what configuration value I've got wrong? Versions Debian: Debian GNU/Linux 6.0.6 (squeeze) Lighttpd: lighttpd/1.4.28 (ssl) PHP: PHP 5.3.19-1~dotdeb.0 with Suhosin-Patch (cli)

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Virtualmin Configuration

- by Allen

I am trying to get Virtualmin setup and have reached a point where my noobish sysadmin skills aren't getting the job done. This is the message I get now when I try and refresh the configuration of Virtualmin. BIND DNS server is installed, and the system is configured to use it. However, the default master DNS server XXXXXX is not a fully qualified domain name. Sendmail is only accepting SMTP connections on the following ports : 127.0.0.1 port smtp. Email from other systems on the Internet will not be accepted. This can be changed in the Sendmail Mail Server module. Please advise what I need to do to get Sendmail configured properly. Thanks!

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error on remote connection to mysql

- by Ahmet vardar

Hi, I ve been trying to connect my dedicated server mysql db from my computers localhost my code is here; $dbhost = 'domain.com'; $dbuser = 'username'; $dbpass = 'pass'; $conn = mysql_connect($dbhost, $dbuser, $dbpass) or die('Could not connect: ' . mysql_error()); $dbname = 'dbname'; mysql_select_db($dbname); I get that error Could not connect: Lost connection to MySQL server at 'reading initial communication packet', system error: 61 Dedicated server is Linux centos 64 bit, php 3.2.4, mysql 5.1.54 Is there any workaround that ? Thanks

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Joomla 1.5 Media Manager sets incorrect file permissions when uploading

- by Scott Mayfield

Howdy all, I have a Joomla 1.5 installation running on Windows Server 2008, installed via the Web Platform Installer. When uploading images with the media manager (native uploader, not the flash bulk uploader), the files arrive on the server correctly, but are given incorrect permissions. Specifically, the IIS_IUSRS group is not given access to the file. I might be incorrect about what group/user is SUPPOSED to get access to the files, but so far, I've found that unless I give IIS_IUSRS access to the uploaded files, they won't appear on the site or in the media manager (appear as broken images). Once I give IIS_IUSRS permission to the files, they work fine. So far, all the research I've done has led me to linux specific fixes that involve either changing the umask on the server, or directly modifying the Joomla codebase to add an appropriate chmod command to the upload process, but I really don't want to modify Joomla directly. I have to believe there's a setting here somewhere that will do the job, either on the Joomla or Windows side of the equation. Any thoughts? Scott

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- by TruMan1

- by MainMa

- by Nick Abbey

- by notpeter

- by ntphelp

- by bogha

- by Hamed Momeni

- by javano

- by Maarten

- by V. Romanov

- by TessellatingHeckler

- by Dscoduc

- by technobuddha

- by Furism

- by mojeime

- by jackweirdy

- by phunehehe

- by Hagay Myr

- by matija

- by user74513

- by Narendra

- by Sam

- by Allen

- by Ahmet vardar

- by Scott Mayfield

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