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  • Web Site Serving, Cloud-Computing, oh, my

    - by Frank
    I'm planning a software based service. To give it a bit of context (type of traffic), assume it similar to facebook in nature (with a little GitHub thrown in). I've been trying to understand my different hosting options. I've been using a shared host with GoDaddy for years just fine. I currently host a Wordpress web site there and I've not had any problems. Quite frankly, they've taken good care of me. However, the nature of a shared hosting environment is limited in nature. For example, I can't do anything but host a web site there. For example, I can not run a Mercurial server. Last time I attempted to build a web application with the intention of eventually launching it via GoDaddy, I ran in to all sorts of troubles because it was shared-hosted. Assembly issues, etc. At the time, the cost and time sank my project. (The lack of direct access was also frustrating.) (to be fair to godaddy, this was over 3 years ago) I've been looking at Rackspace or Amazon as a possible cloud solution but it seems to be just processing power and bandwidth (and an OS). From what I understand, I'd need to get Apache and MySQL Working on my own. The way cloud hosting is priced, however, seems appealing. I figure my final option might be to use a virtual private host. I think this would be more flexible than a shared-host site but less scalable than a cloud based server. So, I guess my question is what is an appropriate solution for someone who intends to build a web application service? I figure that I need to establish a hosting environment now rather than later so I can plan to effectively use the environment. I'd prefer to be fairly economical to start out with. I really can't afford to pay $999 (or even $99) while I build up the site and get the core functionality online but at the same time, I'd like to have the selected environment grow as needed. Thank you.

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  • Configuring Postfix with other SMTP provider

    - by Eduard Luca
    I want to use SendGrid as my email sending service, but want to also use Postfix's internal queue mechanism to manage the emails sent through Sendgrid. So basically what I want to do is to configure Postfix to send emails through Sendgrid's SMTP, and I will configure my app to send the emails using the local Postfix. My question is, how can I configure Postfix to use an external SMTP? Looked here but didn't see anything useful.

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  • What is stored in %Windir%\System32\LogFiles\WMI\RtBackup?

    - by Helge Klein
    I occasionally notice in Resource Monitor hard disk activity related to ETL files in the folder C:\Windows\System32\LogFiles\WMI\RtBackup. Which process/service creates these ETL files and what is their purpose? Resource Monitor shows "System" as the process which is correct since ETW traces (that is what ETL files are) are created by the kernel. But I am interested in the process that causes the traces to be created. This happens on Windows 7, by the way.

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  • Problem with monitoring Glassfish with JConsole..

    - by Pavel
    I have enabled JMX connection on remote Glassfish server and then I've restarted it. During starting server notified: Standard JMX Clients (like JConsole) can connect to JMXServiceURL: [service:jmx:rmi:///jndi/rmi://myserver:8686/jmxrmi] for domain management purposes. Port 8686 is opened for connections. But I can't connect to server with JConsole.. It says: Connection failed. How can I solve this problem? Thanks in advance.

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  • Complete Active Directory redesign and GPO application

    - by Wolfgang Kuehne
    after much testing and hundreds of tries and hours invested I decided to consult you experts here. Overview: I want to apply some GPO to our users which will add some specific site to the Trusted Sites in Internet Explorer settings for all users. However, the more I try the more confusing the results become. The GPO is either applied to one group of users, or to another one. Finally, I came to the conclusion that this weird behavior is cause rather by the poor organization in Users and Groups in Active Directory. As such I want to kick the problem from the root: Redesign the Active Directory Users and Groups. Scenario: There is one Domain Controller, and we use Terminal Services (so there is a Terminal Server as well). Users usually log on to the Terminal Server using Remote Desktop to perform their daily tasks. I would classify the users in the following way: IT: Admins, Software Development Business: Administration, Management The current structure of the Active Directory Users and Groups is a result of the previous IT management. The company has used Small Business Server which has created multiple default user groups and containers. Unfortunately, the guys working before me have do no documentation at all. Now, as I inherit this structure I am in the no mans land. No idea which direction to head first. As you can see, the Active Directory User and Groups have become a bit confusing. There is no SBS anymore, but when migrating from SBS to the current Windows Server 2008 R2 environment the guys before me have simply copied the same structure. The real question: Where should I start cleaning from, ensuring that I won't break totally the current infrastructure? What is a nice organization for the scenario that I have explained above? Possible useful info for the current structure: Computers folder contains Terminal Services Computers user group Members: TerminalServer computer located at Server -> Terminalserver OU Member of: NONE Foreign Security Principals : EMPTY Managed Service Accounts : EMPTY Microsoft Exchange Security Groups : not sure if needed, our emails are administered by external service provider Distribution Groups : not sure if needed Security Groups : there are couple of groups which are needed SBS users : contains all the users Terminalserver : contains only the TerminalServer machine

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  • Windows Server 2008 DNS - restart after changing forwarder?

    - by Jim
    I had a dns forwarder configured that seems to be choking on a particular server name so I switched to using google's dns as a forwarder (8.8.4.4). When I change that setting in Windows DNS (Server 2008 R2) Do i need to restart the dns service for the change to take effect? I ask because i can do a nslookup on the name using 8.8.4.4 and it resolves but even with 8.8.4.4 in my forwarders list it will not resolve when i run nslookup on my local DNS server.

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  • On-demand RHEL/Centos Linux admin and MySQL admin

    - by user1322092
    Could you share with me a few reputable businesses/websites where I can quickly onboard a RHEL/Centos Linux admin or even a MySQL admins (say if I need help with disaster recovery). I have a cloud server, and I would like to task an admin to perform specific maintenance or even periodic. With the abundance of solely-run cloud servers, I would imagine there's a demand for this type of service (certainly for me).

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  • chrooting user causes "connection closed" message when using sftp

    - by George Reith
    First off I am a linux newbie so please don't assume much knowledge. I am using CentOS 5.8 (final) and using OpenSSH version 5.8p1. I have made a user playwithbits and I am attempting to chroot them to the directory home/nginx/domains/playwithbits/public I am using the following match statement in my sshd_config file: Match group web-root-locked ChrootDirectory /home/nginx/domains/%u/public X11Forwarding no AllowTcpForwarding no ForceCommand /usr/libexec/openssh/sftp-server # id playwithbits returns: uid=504(playwithbits) gid=504(playwithbits) groups=504(playwithbits),507(web-root-locked) I have changed the user's home directory to: home/nginx/domains/playwithbits/public Now when I attempt to sftp in with this user I instantly get the message: connection closed Does anyone know what I am doing wrong? Edit: Following advice from @Dennis Williamson I have connected in debug mode (I think... correct me if I'm wrong). I have made a bit of progress by using chmod to set permissions recursively of all files in the directly to 700. Now I get the following messages when I attempt to log on (still connection refused): Connection from [My ip address] port 38737 debug1: Client protocol version 2.0; client software version OpenSSH_5.6 debug1: match: OpenSSH_5.6 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.8 debug1: permanently_set_uid: 74/74 debug1: list_hostkey_types: ssh-rsa,ssh-dss debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: client->server aes128-ctr hmac-md5 none debug1: kex: server->client aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: KEX done debug1: userauth-request for user playwithbits service ssh-connection method none debug1: attempt 0 failures 0 debug1: user playwithbits matched group list web-root-locked at line 91 debug1: PAM: initializing for "playwithbits" debug1: PAM: setting PAM_RHOST to [My host info] debug1: PAM: setting PAM_TTY to "ssh" debug1: userauth-request for user playwithbits service ssh-connection method password debug1: attempt 1 failures 0 debug1: PAM: password authentication accepted for playwithbits debug1: do_pam_account: called Accepted password for playwithbits from [My ip address] port 38737 ssh2 debug1: monitor_child_preauth: playwithbits has been authenticated by privileged process debug1: SELinux support disabled debug1: PAM: establishing credentials User child is on pid 3942 debug1: PAM: establishing credentials Changed root directory to "/home/nginx/domains/playwithbits/public" debug1: permanently_set_uid: 504/504 debug1: Entering interactive session for SSH2. debug1: server_init_dispatch_20 debug1: server_input_channel_open: ctype session rchan 0 win 2097152 max 32768 debug1: input_session_request debug1: channel 0: new [server-session] debug1: session_new: session 0 debug1: session_open: channel 0 debug1: session_open: session 0: link with channel 0 debug1: server_input_channel_open: confirm session debug1: server_input_global_request: rtype [email protected] want_reply 0 debug1: server_input_channel_req: channel 0 request env reply 0 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req env debug1: server_input_channel_req: channel 0 request subsystem reply 1 debug1: session_by_channel: session 0 channel 0 debug1: session_input_channel_req: session 0 req subsystem subsystem request for sftp by user playwithbits debug1: subsystem: cannot stat /usr/libexec/openssh/sftp-server: Permission denied debug1: subsystem: exec() /usr/libexec/openssh/sftp-server debug1: Forced command (config) '/usr/libexec/openssh/sftp-server' debug1: session_new: session 0 debug1: Received SIGCHLD. debug1: session_by_pid: pid 3943 debug1: session_exit_message: session 0 channel 0 pid 3943 debug1: session_exit_message: release channel 0 debug1: session_by_channel: session 0 channel 0 debug1: session_close_by_channel: channel 0 child 0 debug1: session_close: session 0 pid 0 debug1: channel 0: free: server-session, nchannels 1 Received disconnect from [My ip address]: 11: disconnected by user debug1: do_cleanup debug1: do_cleanup debug1: PAM: cleanup debug1: PAM: closing session debug1: PAM: deleting credentials

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  • Router with Wake On LAN

    - by Jaroslav Záruba
    I'm looking for a new WiFi router, and one key feature for me is WOL. Seems like many routers won't do this w/ factory firmware. Given my last router (Asus WL-520g) turned into a disco-brick couple hours after flashed DD-WRT I'd prefer if the new one supported WOL (Wake on LAN) out of the box. Other required features would be: DynDNS service support Port forwarding NAT loopback so I can access services running in my own network using dyndns hostname or public IP w/o getting too old (for example DIR-615 with factory firmware lets you wait literally minutes)

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  • HAProxy + Percona XtraDB Cluster

    - by rottmanj
    I am attempting to setup HAproxy in conjunction with Percona XtraDB Cluster on a series of 3 EC2 instances. I have found a few tutorials online dealing with this specific issue, but I am a bit stuck. Both the Percona servers and the HAproxy servers are running ubuntu 12.04. The HAProxy version is 1.4.18, When I start HAProxy I get the following error: Server pxc-back/db01 is DOWN, reason: Socket error, check duration: 2ms. I am not really sure what the issue could be. I have verified the following: EC2 security groups ports are open Poured over my config files looking for issues. I currently do not see any. Ensured that xinetd was installed Ensured that I am using the correct ip address of the mysql server. Any help with this is greatly appreciated. Here are my current config Load Balancer /etc/haproxy/haproxy.cfg global log 127.0.0.1 local0 log 127.0.0.1 local1 notice maxconn 4096 user haproxy group haproxy debug #quiet daemon defaults log global mode http option tcplog option dontlognull retries 3 option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 frontend pxc-front bind 0.0.0.0:3307 mode tcp default_backend pxc-back frontend stats-front bind 0.0.0.0:22002 mode http default_backend stats-back backend pxc-back mode tcp balance leastconn option httpchk server db01 10.86.154.105:3306 check port 9200 inter 12000 rise 3 fall 3 backend stats-back mode http balance roundrobin stats uri /haproxy/stats MySql Server /etc/xinetd.d/mysqlchk # default: on # description: mysqlchk service mysqlchk { # this is a config for xinetd, place it in /etc/xinetd.d/ disable = no flags = REUSE socket_type = stream port = 9200 wait = no user = nobody server = /usr/bin/clustercheck log_on_failure += USERID #only_from = 0.0.0.0/0 # recommended to put the IPs that need # to connect exclusively (security purposes) per_source = UNLIMITED } MySql Server /etc/services Added the line mysqlchk 9200/tcp # mysqlchk MySql Server /usr/bin/clustercheck # GNU nano 2.2.6 File: /usr/bin/clustercheck #!/bin/bash # # Script to make a proxy (ie HAProxy) capable of monitoring Percona XtraDB Cluster nodes properly # # Author: Olaf van Zandwijk <[email protected]> # Documentation and download: https://github.com/olafz/percona-clustercheck # # Based on the original script from Unai Rodriguez # MYSQL_USERNAME="testuser" MYSQL_PASSWORD="" ERR_FILE="/dev/null" AVAILABLE_WHEN_DONOR=0 # # Perform the query to check the wsrep_local_state # WSREP_STATUS=`mysql --user=${MYSQL_USERNAME} --password=${MYSQL_PASSWORD} -e "SHOW STATUS LIKE 'wsrep_local_state';" 2>${ERR_FILE} | awk '{if (NR!=1){print $2}}' 2>${ERR_FILE}` if [[ "${WSREP_STATUS}" == "4" ]] || [[ "${WSREP_STATUS}" == "2" && ${AVAILABLE_WHEN_DONOR} == 1 ]] then # Percona XtraDB Cluster node local state is 'Synced' => return HTTP 200 /bin/echo -en "HTTP/1.1 200 OK\r\n" /bin/echo -en "Content-Type: text/plain\r\n" /bin/echo -en "\r\n" /bin/echo -en "Percona XtraDB Cluster Node is synced.\r\n" /bin/echo -en "\r\n" else # Percona XtraDB Cluster node local state is not 'Synced' => return HTTP 503 /bin/echo -en "HTTP/1.1 503 Service Unavailable\r\n" /bin/echo -en "Content-Type: text/plain\r\n" /bin/echo -en "\r\n" /bin/echo -en "Percona XtraDB Cluster Node is not synced.\r\n" /bin/echo -en "\r\n" fi

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  • better JSP server setup on windows?

    - by phill
    I'm currently running my jsp pages on a windows 2003 server, apache tomcat 5.5 setup. My process involved is as follows: make change to .java file compile .java file restart apache tomcat service refresh browser check c:\program files\apache software foundation\tomcat 5.5\logs This is beyond cumbersome. Is there a better development platform to develop jsp pages which makes life alot easier? thanks in advance

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  • 16GB winsxs folder on windows vista

    - by Jigs
    I know there are lots of posts about the winsxs folder, but I have yet to find any useful information about shrinking it. I have already tried running the two service pack removal tools. The folder totals a massive 16GB (about 10% of the entire drive!) If anyone has any pearls of wisdom then please share them.

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  • how to add solr to run on startup?

    - by Blankman
    I asked this question before, but I think I got answers that were cron job type answers. I want the solr service to startup if I reboot my computer, and I also want it to run by itself instead of me opening up cmd.exe and running it manually, and then having to close my terminal connection (not log off as that will close it). What options do I have? I am on windows server 2008, IIS7 running a asp.net application that uses solr.

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  • Recommendations for Windows Server 2008 Hyper-V VPS Host?

    - by user37042
    I'm looking for a well-respected, high-performing Windows Server 2008 Hyper-V VPS host. For my linux hosting, I use a shared WebFaction account, so I'm spoiled by their incredible service and support. RackSpaceCloud also sounds really good, especially for linux hosting, but it sounds like their Windows hosting is just getting off the ground. I've heard good things about SoftSysHosting, but I didn't know if there were any other VPS providers out there that people will give strong endorsements for (as I do for WebFaction every chance I get).

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  • IIS 401.3 - Unauthorized on only 1 server out of 3 set up for network load balancing

    - by Tony
    Over the weekend our Server Admin set up two virtual Windows 2008 machines with IIS installed and set them up under NLB. I came in and changed the application pool the website was running under to our domain account that has proper access to the database and the file share hosting our .NET web application Sitefinity, and changed it to .NET 4 Integrated. NLB and everything was running fine on both servers. He brought up the third server for our cluster on Tuesday and I performed the same actions.. The only difference was that I was given admin rights for the third server so I could set it up remotely instead of going to his office. He has full control over the share and NTFS perms on \\hostname\Sitefinity and I believe I only had read access. I pointed the web site to the same \\hostname\Sitefinity\sitename share that the others were on and the authentication/authorization test settings passed. I hit the site from http://localhost (like I did successfully from the other two before trying the cluster's IP address) and I received a HTTP Error 401.3 - Unauthorized. I've verified many times that the application pool is running under the same service account. I tried hitting just a simple test.htm.. works fine on both of the first two servers but I get the same 401.3 on the third. I copied my dev project to the local inetpub directory and re-pointed the website and that ran perfectly. I turned on Failed Request Tracing and it acts like it's still running the local IUSR account I guess (instead of my domain account)? Here is an excerpt of the File Cache Access Start and the error from the trace: FileName \\hostname\sitefinity\sitename\test.htm UserName IUSR DomainName NT AUTHORITY ---------- Successful false FileFromCache false FileAddedToCache false FileDirmoned true LastModCheckErrorIgnored true ErrorCode 2147942405 LastModifiedTime ErrorCode Access is denied. (0x80070005) ---------- ModuleName IIS Web Core Notification 2 HttpStatus 401 HttpReason Unauthorized HttpSubStatus 3 ErrorCode 2147942405 ConfigExceptionInfo Notification AUTHENTICATE_REQUEST ErrorCode Access is denied. (0x80070005) ---------- My personal AD account was then granted read/write perms to the share so I created a new application pool and set the site under it in case there was an issue with the application pool but no success. I created another under my own account and it still failed. It just seems like maybe it's not trying to access the files under the account my application pools are running under although that's the only way I've done things before. I set the Physicial Path Credentials in Advanced Settings on the site to the service account and it threw a 500 error of some sort so I assume that's not the answer (and I don't have to do it on the other servers). It's like somehow I'm trying to force impersonation on the IUSR account or something?

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  • HP MSR 30-10a Router - Route Traffic over Default Route

    - by SteadH
    We have a brand new HP MSR 30-10a Router. We have a fairly simple routing situation - we have two IP blocks, one which has a route out. We need things on the first block to go through the router, and out. I have an old Cisco 2801 router doing the job right now. For our example - IP Block 1: 50.203.110.232/29, Router interface on this block is 50.203.110.237, route out is 50.203.110.233. IP Block 2: 50.202.219.1/27, Router interface on this block at 50.202.219.20. I have a static route created for: 0.0.0.0 0.0.0.0 50.203.110.233 The router seems to understand this. When on the CLI via serial cable, I can ping 8.8.8.8 and hear responses from Google DNS. Woo hoo! The issue arrives when any client sits on the IP Block 2 side. I configured my client with a static IP of 50.202.219.15/27, default gateway 50.202.219.20. I can ping myself. I can ping the near side of the router (50.202.219.20), and I can ping the far side of the router (50.203.110.237. I cannot ping anything else in IP block 1, nor can I ping 8.8.8.8. Here is my configuration file: <HP>display current-configuration # version 5.20.106, Release 2507, Standard # sysname HP # domain default enable system # dar p2p signature-file flash:/p2p_default.mtd # port-security enable # undo ip http enable # password-recovery enable # vlan 1 # domain system access-limit disable state active idle-cut disable self-service-url disable # user-group system group-attribute allow-guest # local-user admin password cipher $c$3$40gC1cxf/wIJNa1ufFPJsjKAof+QP5aV authorization-attribute level 3 service-type telnet # cwmp undo cwmp enable # interface Aux0 async mode flow link-protocol ppp # interface Cellular0/0 async mode protocol link-protocol ppp # interface Ethernet0/0 port link-mode route ip address 50.203.110.237 255.255.255.248 # interface Ethernet0/1 port link-mode route ip address 50.202.219.20 255.255.255.224 # interface NULL0 # ip route-static 0.0.0.0 0.0.0.0 50.203.110.233 permanent # load xml-configuration # load tr069-configuration # user-interface tty 12 user-interface aux 0 user-interface vty 0 4 authentication-mode scheme # My guess right now is there is some sort of "permission" needed to use the default route. The manuals haven't turned up a lot in this area that don't make the situation much more complicated (but maybe it needs to be more complicated?) Background: we use HP switches, and I love the CLI. I bought HP thinking the command line interface would be similar, or at least speak the same language. Whoops! I'd be happy to provide more information or perform any additional tests. Thanks in advance! Update 1: The manual mentions routing rules. I hadn't previously added these (since our Cisco 2801 seems to route anything by default). I added: ip ip-prefix 1 permit 0.0.0.0 0 less-equal 32 alas, still no dice.

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  • MyService.svc?wsdl shows 400 Bad Request IIS 7.5

    - by Omu
    I'm on Windows 7 Ultimate IIS 7.5 I have deployed the services to the web server and when I try them in IE like this: MyService.svc?wsdl I get the 400 "Bad Request" page I should get the description of the web service instead, anybody knows how to fix this ?

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  • OpenOffice Daemon Problem

    - by mp_gt
    Dear all, I'm using OpenOffice as a daemon. Sometimes, when the daemon is running a long time, CPU use spikes very high and then openoffice crash. At this point, the open office applicattion don't work and the documents don't be generated. How can I restart automatically the openoffice daemon when this problem happens? Is there any way to monitor the service or to program a watchdog to handle it? Thanks in advance, regards.

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