Search Results

Search found 9816 results on 393 pages for 'blade servers'.

Page 102/393 | < Previous Page | 98 99 100 101 102 103 104 105 106 107 108 109  | Next Page >

• Unresponsive virtual OS

  - by confusedGeek

  Hopefully someone has a suggestion on how to resolve this. Configuration Host: Win 2003R2 w/Virtual Server 2005R2 Virtual1: Win 2003R2 w/Sql Server 2005 Virtual2: Win 2003R2 w/WSS 3.0 Situation This past weekend the power went out and took down the servers (no UPS, it's a desktop standing in as dev testing server). Since the servers went down the Virtual2 server after running WSS fairly heavily for an hour to two will become unresponsive via HTTP. If I login via virtual server's remote control I don't get anything beyond a background screen. The CPU counter on the virtual server's master status shows that it isn't doing anything. The only thing I have been able to do is to turn off Virtual2, which loses any state changes. Shutdown commands issue from the virtual server master status are ignored. After restarting Virtual2 the event logs and application logs don't indicate what caused the problem. Anyone have an idea as to how to repair the OS, or maybe what could be the problem? Thanks ahead of time.

  Read the article

• Web service not accessible from behind corporates firewalls - how come?

  - by Niro

  We run a Saas serving a widget which is embedded in customer websites. The service include static javascript code hosted on amazon S3 and dynamic part hosted on EC2 with Scalr (using scalr name servers). We received some feedback from users behind corporate firewalls that they cant access our service (while they can access the sites including the widget). This does not make sense to me since the service is using normal http calls on port 80 and our URL is quite new without any reason to be banned by firewalls. My questions are: 1. Why is the service is not accessible and what can I do about it? 2. Is it possible that one of the following is blocked by corporate firewalls: Amazon s3, the dynamic IP address provided by amazon, Scalr name servers. Any other possible reasons, way to check them and remedies for this? Thanks!

  Read the article

• Odd domain switching behavior in Firefox and Chrome

  - by Jeremy Detrempe

  We have different development severs and a production server. Testing is done in the development servers. As a QA engineer, I'm switching between these servers quite often throughout the day. In Chrome, sometimes I need to reload a page a few times to get it to pull from the newly switched server. In Firefox, sometimes I need to quit the browser in order to get it to pull from the newly switched server. (We have small tags that indicate which server you are pulling from, which is how I know in-browser.) Why does that happen? I'd love to know how that happens (maybe what it's called?) and what the best way to deal with it is. (I know that Firefox has an extension for domain switching; is that the best solution?)

  Read the article

• Load Balancing a UDP server

  - by Hellfrost

  Hello StackOverflow, I have a udp server, it is a central part in my business process. in order to handle the loads I'm expecting in the production environment I'll probably need 2 or 3 instances of the server. The server is almost entirely stateless, it mostly collects data, and the layer above it knows how to handle the minimal amount of stale data that can arise from the the multiple server instances. My question is, how can I implement load balancing between the servers? I would prefer to distribute the requests as evenly as possible between the servers. I would also would like to have some fidelity, I mean if client X was routed to server y, then I want all of X's subsequent requests to go to server Y, as long as it is sensible and not overloads Y. By the way it is a .NET system... what would you recommend?

  Read the article

• Finding Missing UDP Frames Using Wireshark + Custom Dissector (for CQS)

  - by John Dibling

  How do you use Wireshark to identify missing UDP frames? I have written a custom dissector for the CQS feed (reference page). One of our servers gaps when receiving this feed. According to Wireshark, some UDP frames are never received. I know that the frames were sent because all of our other servers are gap-free. A CQS frame consists of multiple messages, each having its own sequence number. My custom dissector provides the following data to Wireshark: cqs.frame_gaps - the number of gaps within a UDP frame (always zero) cqs.frame_first_seq - the first sequence number in a UDP frame cqs.frame_expected_seq - the first sequence number expected in the next UDP frame cqs.frame_msg_count - the number of messages in this UDP frame And I am displaying each of these values in custom columns, as shown in this screenshot: A typical CQS log will consist of millions of rows, so I can't just eyeball it. Is there any way I can get Wireshark to tell me which frames are missing?

  Read the article

• Win 2003 STD network adapter always showing DHCP when in static IP configuration, + it loses the DNS

  - by Darragh

  Hi, I have a server that after the first configuration it was DHCP, now I have added it to our domain and in a static IP, however after a few moments it returns to DHCP but with only some of the IPv4 setting staying the same, It loses DNS for example. I'm not sure what is causing the problem but all I know is this started to happen after I added it to the domain, Would it be a domain policy? or the NIC drivers Spec; Dell M605 Blade server Windows 2003 STD SP1 Intel Xeon Quad core NIC: Dual embedded Broadcom NetXtreme IITM 5708 Gigabit Ethernet NIC w/ TOE

  Read the article

• Assign fixed IP address via DHCP by DNS lookup

  - by Janoszen

  Preface I'm building a virtualization environment with Ubuntu 14.04 and LXC. I don't want to write my own template since the upgrade from 12.04 to 14.04 has shown that backwards compatibility is not guaranteed. Therefore I'm deploying my virtual machines via lxc-create, using the default Ubuntu template. The DNS for the servers is provided by Amazon Route 53, so no local DNS server is needed. I also use Puppet to configure my servers, so I want to keep the manual effort on the deployment minimal. Now, the default Ubuntu template assigns IP addresses via DHCP. Therefore, I need a local DHCP server to assign IP addresses to the nodes, so I can SSH into them and get Puppet running. Since Puppet requires a proper DNS setup, assigning temporary IP addresses is not an option, the client needs to get the right hostname and IP address from the start. Question What DHCP server do I use and how do I get it to assign the IP address based only on the host-name DHCP option by performing a DNS lookup on that very host name? What I've tried I tried to make it work using the ISC DHCP server, however, the manual clearly states: Please be aware that only the dhcp-client-identifier option and the hardware address can be used to match a host declaration, or the host-identifier option parameter for DHCPv6 servers. For example, it is not possible to match a host declaration to a host-name option. This is because the host-name option cannot be guaranteed to be unique for any given client, whereas both the hardware address and dhcp-client-identifier option are at least theoretically guaranteed to be unique to a given client. I also tried to create a class that matches the hostname like this: class "my-client-name" { match if option host-name = "my-client-name"; fixed-address my-client-name.my-domain.com; } Unfortunately the fixed-address option is not allowed in class statements. I can replace it with a 1-size pool, which works as expected: subnet 10.103.0.0 netmask 255.255.0.0 { option routers 10.103.1.1; class "my-client-name" { match if option host-name = "my-client-name"; } pool { allow members of "my-client-name"; range 10.103.1.2 10.103.1.2; } } However, this would require me to administer the IP addresses in two places (Amazon Route53 and the DHCP server), which I would prefer not to do. About security Since this is only used in the bootstrapping phase on an internal network and is then replaced by a static network configuration by Puppet, this shouldn't be an issue from a security standpoint. I am, however, aware that the virtual machine bootstraps with "ubuntu:ubuntu" credentials, which I intend to fix once this is running.

  Read the article

• Lightweight, low cost enterprise backup solution

  - by Scott

  Looking for a backup solution primarily for Windows clients (XP/7), that will either back up to 2 different servers (1 on site, 1 off site - internet - can be our own server), or back up to 1 server and then we would need to somehow backup that server offsite/internet. By lightweight, I mean the backup client software should not eat up much memory and processor since some of the client machines are older. I am used to using Crashplan for home use - the pricing is nice for the amount of backup I get, and it works great / easy to install and get going - I can back up to my own machines locally and over the net. However, the price is going to be a little steep for enterprise level backup, 1500+ machines. Possibly ZManda and Bacula are good choices to consider? Are they light weight? Can the clients/agents be set to go over the net and/or multiple backup servers?

  Read the article

• reverse proxy only from one internal server

  - by hrost

  I have configured a reverse proxy and is working ok for one internal server, for example our mail server. Now, I like to know if it is possible to configure a reverse proxy for only one server /application (in this case our web intranet). Our problem is Intranet call another aplication inside same intranet server and another internal servers, and the only way that I know to publish this resources is make a reverse proxy in our dmz apache for all apllications servers, but I like that from our DMZ reverse apache only intranet will be called, and other applications will be called by intranet server, and not reverse proxy. I like to configure with this system for security reason, and only allow external access to one server. I have configured With Debian Squeeze and apache 2.2 It is possible? How?

  Read the article

• NAT rules betweek 2 network interfaces (with iptables)

  - by Simone Falcini

  this is the current network that I have: UBUNTU: eth0: ip: 212.83.10.10 bcast: 212.83.10.10 netmask 255.255.255.255 gateway 62.x.x.x eth1: ip: 192.168.1.1 bcast: 192.168.1.255 netmask: 255.255.255.0 gateway ? CENTOS: eth0: ip: 192.168.1.2 bcast: 192.168.1.255 netmask 255.255.255.0 gateway 192.168.1.1 I basically want this: Make specific NAT rules from the internet to specific internal servers depending on the port: Connections incoming to port 80 must be redirected to 192.168.1.2:80 Connections incoming to port 3306 must be redirected to 192.168.1.3:3306 and so on... I also need one NAT rule to allow the servers in the subnet 192.168.1.x to browse the internet. I need to route the requests on eth0 to eth1 to be able to exit to internet. Can I do this on the UBUNTU machine with iptables? Thanks!

  Read the article

• Unable to telnet out on port 25 on windows server 2008

  - by NickGPS

  Hi All, I just setup a Windows 2008 R2 server and am trying to get a basic mail server up and running so that I can send emails from my applications. I setup a virtual SMTP server in IIS6 and tried doing a local telnet to port 25, which seemed to work fine. There were no errors during this stage and I can see the mail message appear in the Queue folder. The problem is that mail never leaves the Queue folder. I then tried to telnet to a remote mail server on port 25 but couldn't connect:- telnet 209.85.227.27 25 Could not open connection to the host, on port 25: Connection failed) I checked my firewall and there is a default setting to allow all outgoing TCP traffic with no restriction. I even setup a specific rule for outgoing port 25 traffic but to no avail. I then ran a SmtpDiag.exe command .\SmtpDiag.exe [email protected] [email protected] and received the following output Searching for Exchange external DNS settings. Computer name is WIN-SERVERNAME. Failed to connect to the domain controller. Error: 8007054b Checking SOA for gmail.com. Checking external DNS servers. Checking internal DNS servers. SOA serial number match: Passed. Checking local domain records. Checking MX records using TCP: gmail.com. Checking MX records using UDP: gmail.com. Both TCP and UDP queries succeeded. Local DNS test passed. Checking remote domain records. Checking MX records using TCP: gmail.com. Checking MX records using UDP: gmail.com. Both TCP and UDP queries succeeded. Remote DNS test passed. Checking MX servers listed for [email protected]. Connecting to gmail-smtp-in.l.google.com [209.85.227.27] on port 25. Connecting to the server failed. Error: 10060 Failed to submit mail to gmail-smtp-in.l.google.com. Is there any other diagnostics I can do to figure out if it's my firewall or something else? I have removed antivirus to make sure that it wasn't causing the problem. Any ideas would be much appreciated.

  Read the article

• mirroring linux server to external usb harddrive

  - by DuPie

  My google-fu must be sucking. i havent been able to find a good solution for the following: numerous Linux server on commodity hardware Trying to do a recovery mirror copy to external harddrives External harddrives are smaller than source harddrives, but larger than data External drives are connected via usb2 (slow) Servers range from 20GB of data to 400GB of data Servers are remote, so hands on access is a pain need to copy boot files. empty external drives currently Basicly, looking for a way to do use a ghosting solution from INSIDE a running linux server to an external harddrive, without booting a cd etc. the rsync/cpio solutions i've looked at dont work great with grub/dev/proc etc. I understand that since the system isnt offline, it wont be a "mirror" image as files change, but thats ok. Are there any free/commercial products that would work?

  Read the article

• Ganglia divide colors by rolles

  - by com

  Sorry for a silly question I am still newbie to Ganglia. In Ganglia I control few important metrics for mysql (seconds behind master and etc.). In addition I have few bunches of mysql servers (every bunch has it's own tasks, but all of the bunches should be tested for seconds behind master). I am interested if this possible to show all metrics on the one page with different colors to different bunches. Right now in metric "seconds behind master" I see all mysql servers with metric "seconds behind master" with colors to different states (red is critical, gray is ok). Can I set a color to a graph according to it's bunch? Thanks!

  Read the article

• How can I stop Windows DNS server properties settings from changing by themselves?

  - by paradroid

  When I open the DNS console in Administrative tools, I keep finding a couple of problems which keep on reappearing by themselves, and I want to stop them from happening. One of the DNS servers has two network interfaces, and it should only be listening for requests on of them, and I get errors in the Event Log otherwise. But when right clicking one DNS server and selecting Properties, I can see on the Interfaces tab that 'All IP addresses' is selected. If I Change it to 'Only the following IP addresses:' and deleselect the WAN addess, I will find it reslected when I next check it after a couple of days. In the other DNS server's Properties, on the Forwarders tab, there should only be two forwarder addresses. However, the address for the router keeps in appearing. This router has the DNS server as its forwarder. There shouldn't be anything using the router's DNS forwarders for DNS other than the router itself, but this surely is causing a loop. How do I get these properties on both DNS servers to stick?

  Read the article

• once VPNed into pfSense, unable to hit the public URLs of my websites - they are routed to the pfSense box

  - by Sean

  I have a pfSense box setup as the firewall/router/VPN appliance at my colo. Once I VPN into the colo (either pptp or openvpn, pptp preferred due to multiple clients and ease of configuration), I am able to hit all my servers by their private 10.10.10.x ip and am able to browse the public internet without issue. When I try and hit the URL of a domain hosted by one of my servers, I am prompted for credentials. If I login using the pfSense credentials, I'm connected to pfSense as if I'd used it's internal IP. If I hack my hosts file to point url - server private IP it works fine, but this is obviously not a good solution. To recap: not connected to VPN - www.myurl.com works connected to VPN - www.myurl.com never makes it to the correct server, but is sent only to the pfSense box I'm sure it's something small that I've missed in the pfSense config.

  Read the article

• Why can't European users access my site?

  - by japancheese

  Hello, My site has been running just fine for the past couple of years, but all of a sudden, two days ago, European users have been experiencing serious connection problems to the site. I really want to fix this for them, but what's the best way to figure out what the issue is? I have absolutely no connection problems to the site on my end, nor do Asian or other American users it seems. Using just-ping.com, some European servers come back with some packet losses. I tried doing some traceroutes from European servers to my own, but they all seemed to work just fine. I'd at least like to be able to tell users that if the problem does not lie with my server, then it at least lies somewhere out of my control. I really want to figure out what the choke point is though. Is there another way I might be able to find out why they can't seem to connect to the site? Just looking for any other ideas from people that have had a similar experience.

  Read the article

• Design Question

  - by dturner71

  Can I have two independent Connection servers attached to the same vCenter server? Here's my scenario. I'm setting up View 4 to provide desktops to two seperate Windows domains that are on different IP subnets seperated by a firewall. One cluster of physical servers, one vCenter server, linked clones. As I understand it View Connection server has to be a member of a Windows domain in order for quickprep to work. So the way to provide desktops to both Windows domains is to have a Connection server in each one right? Then open ports in the firewall so the Connection server from the other subnet can communicate with vCenter. Any reason why this won't work? Or is there a better way to accomplish it?

  Read the article

• FTP script download from linux to windows

  - by user53864

  I'm using following FTP script on windows xp to download zip files from ubuntu cloud servers. A zip file is created every day on ubutnu servers and I will download it to windows via this ftp script. I run this script everyday manually as I have to edit the last line(mget /usr/backup_02-11-2010.Zip) of the script to match today's date. I want to edit this script so that it will download only today's zip file at the scheduled time without needing to edit it everyday, when scheduled. It's clear that date is appended to the zip files and is in the format dd-mm-yyyy. Need help... open server-ip-here username-here user-password-here lcd C:\Backup\files bin hash prompt mget /usr/backup_02-11-2010.zip

  Read the article

• CentOS 5 - Unable to resolve addresses for NFS mounts during boot

  - by sagi

  I have a few servers running CentOS 5.3, and am trying to get 2 NFS mount-points to mount automatically on boot. I added 2 lines similar to the following to fstab: server1:/path1 /path1 nfs soft 0 0 server2:/path2 /path2 nfs soft 0 0 When I run 'mount -a' manually, the mount points are properly mounted as expected. However, when I reboot the machine, only /path2 is mounted. For /path1 I get the following error: mount: can't get address for server1 It obviously looks like a DNS issue, but the record is properly configured in all the DNS servers and is mounted properly if I re-try the mount after the reboot is completed. I could properly fix this by using IP address instead of hostnames in /etc/fstab or adding server1 to /etc/hosts but I would rather not do that. What might be the reason for failing to resolve this specific address during boot time? Why the problem is only with the 1st mount point and the 2nd is properly mounted despite having identical configuration?

  Read the article

• PHP hits 100% CPU and eats RAM at the same time Monday to Friday

  - by Daniel Samuels

  We run a learning platform for primary schools here in the UK and it's all been running extremely well. However at around 4PM Monday to Friday we see the same issue arise -- 1-2 PHP threads will spike to 100% CPU and gradually start eating up RAM until the server(s) fall over. 98%+ of our requests are HTTPS, these come into our Layer 7 load balancer which then decrypts the SSL data, adds the X-HTTP-Forwarded-For header and forwards the data onto an application server (we have 2 of those at the moment) on port 80. Our application servers have Varnish on port 80 which takes in the request from the load balancer and passes the request through to Nginx on port 81. Nginx then works out which 'vhost' it needs to use and passes any PHP processing through to PHP-CGI which is listening on a socket (managed through spawn-fcgi). There's an instance of Memcached running too, MySQL runs on a separate server / slave setup. Throughout the day the load will typically go no higher than 0.8 on either of the application servers, however at around 4PM our problem arises. I've managed to run strace on a few of the actual threads when they cause the problem and I always see the same thing: stat("/usr/share/zoneinfo/Europe/London", {st_mode=S_IFREG|0644,st_size=3661, ...}) = 0 stat("/usr/share/zoneinfo/Europe/London", {st_mode=S_IFREG|0644,st_size=3661, ...}) = 0 This is repeated infinitely and never stops until you SEGKILL the process or oomkiller kills it. There are no cron jobs scheduled to run at that time and I don't have any way of seeing exactly what Nginx request is associated with the PHP process which is running. We are running PHP 5.3.14 which we upgraded to from 5.3.8 last week to rule out the older version being the problem. This issue has been going on a few months now and we have no idea what is causing it. We deploy our software very frequently, so it's difficult to track down a specific release which may have started the problem - especially as we do not know the date of the first occurrence of this issue. Varnish is version 3.0.1, Nginx is 1.0.6 (which I understand is about a year old now), our servers are running CentOS release 5.7 (Final) they have Intel i3 540s at 3.07Ghz and 8GB of RAM. There's a discussion on the Debian mailing list about something very similar, you can find that here. Has anyone seen anything like this in the past, does anyone have any ideas or suggestions? Are there a way of linking an Nginx request directly to a PHP thread? Is there a better way of seeing what the PHP process is doing? (I've seen GDB mentioned, though I'll have to recompile PHP) Thanks!

  Read the article

• Getting error while running apt-get update

  - by pradeepchhetri

  I am getting the following error while running apt-get update on all of the servers. W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AA6247928553 W: Some index files failed to download, they have been ignored, or old ones used instead. The solutions available are: To login into each of the server and run the following command to import the gpg key for that repo. sudo gpg --keyserver hkp://subkeys.pgp.net --recv-keys 8B48AA6247928553 sudo gpg --export --armor 8B48AA6247928553 | sudo apt-key add - But this requires logging into all of the individual servers and run the above two commands. I am looking for a way to correct by working on apt-repo server. Is there any way to do that.

  Read the article

• Adding a Windows Server 2012 Essentials server to an existing domain, without migrating the AD

  - by TiernanO

  I have an existing Active Directory in house, a mix between a Win2K8R2 and Win2K3 domain, and i would like to test out Windows Server 2012 Essentials BETA on the network. When walking though the install, it gives me the option of a new domain, or migrating from an existing domain. when clicking existing, it tells me i can only have one SBS server running on a domain at a time... So, i dont have any existing SBS servers in house (both are full standard or enterprise editions) but i do plan on keeping at least one of these extra servers running... So, how do i get a 2012 Essentials server to join a domain, and not migrate the existing domain? or if i do migrate, can i still get one of the other boxes to act as secondary controllers?

  Read the article

• Locking down a server for shared internet hosting.

  - by Wil

  Basically I control several servers and I only host either static websites or scripts which I have designed, so I trust them up to a point. However, I have a few customers who want to start using scripts such as Wordpress or many others - and they want full control over their account. I have started to do the basics - like on php.ini, I have locked it down and restricted commands such as proc, however, there is obviously a lot more I can do. right now, using NTFS permissions, I am trying to lock down the server by running Application Pools and individual sites in their own user, however I feel like I am hitting brick walls... (My old question on Server Fault). At the moment, the only route I can think of is either to implement an off the shelf control panel - which will be expensive and quite frankly, over the top, or look at the Microsoft guide - which is really for an entire infrastructure, not for someone who just wants to lock down a few servers. Does anyone have any guides that can put me on the correct path?

  Read the article

• How to check use of userva boot option on Win 2K3 server

  - by Tim Sylvester

  I have some 32-bit Win2K3 servers running an application that fails now and then apparently due to heap fragmentation. (Process virtual bytes grows, private bytes does not) I do not have access to the source code or build process of this application. I have modified the boot.ini file on one of these servers to include /userva=2560, half way between the normal mode of operation and the /3GB option. Normally it takes weeks to reach the point of failure, but I'd like to see right away whether this has actually had any effect. As I understand it, this option limits the kernel to the remaining address space (1536MB instead of 2048), but does not necessarily give an application the extra address space, depending on the flags in the application's PE header. How can I determine whether the O/S is allowing a particular application, running in production, to access address space above 2GB? Additionally, what's the best way to monitor the system to ensure that the kernel is not starved for address space, and more generally how should I go about finding the optimal value for this setting?

  Read the article

• Debian: SSH: "PermitRootLogin=forced-commands-only" stopped working

  - by Brent

  I have several servers running Debian Lenny. Just recently I discovered the PermitRootLogin=forced-commands-only directive for ssh, which allows me to run a scripted rsync as root with an ssl key, without enabling more generalized root ssh access. However, last week this stopped working - it appears on all of my servers - and I can't figure out why. Everything continues to work fine with PermitRootLogin=yes, but I would prefer to block root logins - especially via passwords. The day it stopped working, we reconfigured some of the ports on one of our switches (which we later reverted), but I can't see that affecting this, since it still works with PermitRootLogin set to yes. How can I diagnose why the forced-commands-only directive has apparently stopped working?

  Read the article

< Previous Page | 98 99 100 101 102 103 104 105 106 107 108 109  | Next Page >