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  • opening socket to google hangs on SYN_SENT

    - by puchu
    I have 2 computers now: downloader (asus at4nm10t-i) with debian and desktop (asus sabertooth 990fx) with gentoo in the same network under NAT even with the same ethernet card: RTL8111E. driver r8169 is compiled as module on both computers. Sometimes in evenings desktop cannot connect to google and all its services like now: curl -v http://www.google.by on downloader it received server's answer immediately. on desktop it hanged and when I ran in other terminal: netstat -ntp | grep curl >>tcp 0 1 192.168.0.7:54126 173.194.35.191:80 SYN_SENT 4876/curl after 1-2 minutes it received server's answer. I was tried to change ip of network, mac address of desktop but nothing changed. When I was trying to connect to another services except google: curl -v http://www.yahoo.com both computers received answers immediately! Only when I rebooted desktop it begins to work with google services correctly I cant understand what is this bug related to. In which bugtracker should I post this: r8169 or linux kernel or google? PS. Desktop was checked with memtest: 5 passes - no errors

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  • Server 2008 print server down / access denied

    - by johnnyb10
    I have two Server 2008 servers (both running as VMs in VMware). One is a Full Installation, and the other is a Server Core installation. I just installed Print Services on both of them. In Print Management on the Full server, I added the Server Core print server (so now two print servers are listed in Print Management). However, the icon for my Server Core print server has a red, down-pointing arrow (indicating that it is down, I suppose). And when I right-click it and click Add Printer, I get a message saying that access is denied. Can someone tell me how to bring up or check on the status of the Server Core print server. Obviously, I'm somewhat of a noob with this stuff. Thanks in advance...

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  • Mac OS X 10.6 issues connecting via vpn to Microsoft server

    - by chris hough
    I am currently running Mac OS X Snow Leopard and trying to use the native vpn client to connect to our Microsoft vpn server. If I route all traffic via the vpn connection I am able to connect to our servers, however, external traffic to i.e. google or stack overflow is blocked. If I uncheck the checkbox to route all traffic via the vpn I can connect to the vpn, however, I can not connect to my servers, external traffic to google or stackoverflow works though. Is this a vpn client issue, do I need to purchase Mac OS X vpn software instead of the native client, or is there a Microsoft vpn server setting that has to be checked. I am not familiar with the server software, but I wanted to post this question here to help out our network admin with the Mac OS X machines.

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  • Automated Deployment of Windows Application

    - by Phillip Roux
    Our development team are looking to automate our application deployment on to multiple servers. We need to control multiple windows servers at once (Stopping Database server & Web Server). We have a ASP.NET project, database upgrade scripts, reports and various Windows services that potentially need to be updated during deployment. Currently we use Jenkins as our CI server to run our unit tests. If something goes wrong in the deployment process, we would like the ability to roll back. What tools are recommended to automate our deployment process?

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  • AVG 9 (Internet Security Business Edition) and IIS 6.0

    - by Dave Holland
    Are any of you using AVG 9 Internet Security Business Edition along with IIS 6.0 and if so have you experienced problems? We just went from 8.5 to 9.0... Luckily I tried on only one of the servers in the web farm first to run for a week to make sure it played well with my servers. A few hours after the install all web apps were giving a "connection refused" error. Neither iisrest or restarting world wide web publishing services resolves the issue, only rebooting the machine brings the webs back up. They are all ASP.Net sites by the way (v2.5). What's interesting is if I take the machine out of the load balancer, the machine runs fine and the webs are just fine for days... as soon as i put it back in the pool it's only a few hours before its sad. The only thing I can think of right now is that the Resident Shield may be causing an issue, any thoughts?

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  • Disk performance below expectations

    - by paulH
    this is a follow-up to a previous question that I asked (Two servers with inconsistent disk speed). I have a PowerEdge R510 server with a PERC H700 integrated RAID controller (call this Server B) that was built using eight disks with 3Gb/s bandwidth that I was comparing with an almost identical server (call this Server A) that was built using four disks with 6Gb/s bandwidth. Server A had much better I/O rates than Server B. Once I discovered the difference with the disks, I had Server A rebuilt with faster 6Gbps disks. Unfortunately this resulted in no increase in the performance of the disks. Expecting that there must be some other configuration difference between the servers, we took the 6Gbps disks out of Server A and put them in Server B. This also resulted in no increase in the performance of the disks. We now have two identical servers built, with the exception that one is built with six 6Gbps disks and the other with eight 3Gbps disks, and the I/O rates of the disks is pretty much identical. This suggests that there is some bottleneck other than the disks, but I cannot understand how Server B originally had better I/O that has subsequently been 'lost'. Comparative I/O information below, as measured by SQLIO. The same parameters were used for each test. It's not the actual numbers that are significant but rather the variations between systems. In each case D: is a 2 disk RAID 1 volume, and E: is a 4 disk RAID 10 volume (apart from the original Server A, where E: was a 2 disk RAID 0 volume). Server A (original setup with 6Gpbs disks) D: Read (MB/s) 63 MB/s D: Write (MB/s) 170 MB/s E: Read (MB/s) 68 MB/s E: Write (MB/s) 320 MB/s Server B (original setup with 3Gpbs disks) D: Read (MB/s) 52 MB/s D: Write (MB/s) 88 MB/s E: Read (MB/s) 112 MB/s E: Write (MB/s) 130 MB/s Server A (new setup with 3Gpbs disks) D: Read (MB/s) 55 MB/s D: Write (MB/s) 85 MB/s E: Read (MB/s) 67 MB/s E: Write (MB/s) 180 MB/s Server B (new setup with 6Gpbs disks) D: Read (MB/s) 61 MB/s D: Write (MB/s) 95 MB/s E: Read (MB/s) 69 MB/s E: Write (MB/s) 180 MB/s Can anybody suggest any ideas what is going on here? The drives in use are as follows: Dell Seagate F617N ST3300657SS 300GB 15K RPM SAS Dell Hitachi HUS156030VLS600 300GB 3.5 inch 15000rpm 6GB SAS Hitachi Hus153030vls300 300GB Server SAS Dell ST3146855SS Seagate 3.5 inch 146GB 15K SAS

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  • scalability: when to use CDN?

    - by ajsie
    i've read about CDN but dont know exactly what it is for. lets say i've got an international social network (text and image content), and it's growing in traffic from different countries, do i have use of CDN? the picture i got from the sources i've read is that it copy your content and put it in many servers spread out over the world so that users will fetch it from the nearest point. does this mean that every server has a copy of my mysql database and the image files? is this the proper way to make your web service available for the world? cause how else could you set up a servers through out the world, contacting hosting companies for each country?

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  • windows 2003 remote desktop fail connect after windows update

    - by bookstorecowboy
    I have a number of windows servers, both win2003, win2003r2 and win2003r2 64 bit. After installing windows updates on the machines and rebooting terminal services give me an immediate "not connect" message. The servers are running fine and you can connect via the physical machine. Once you reboot the box (with remote restart in some cases when it's not accessible) terminal services behaves itself and allows a connection. Whilst it's not a show stopper it is rather annoying when you can't see your box. Anyone know why this is or what the cause is?

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  • Forcing DFS replication on Windows 2003 Web Edition SP2

    - by Greg B
    I have a pair of web servers running Windows Server 2003 Web Edition SP2 (build 3790). There servers are a on a Gigabit LAN and are on the same subnet. I created a new link on the 1st server and added the second box as a target to the link. I configured replication as ring. The 2nd server gets some of the files on the scheduled replication but this varies wildly which makes me think it's not running fully. The folder on server 1 is 1.3GB. Is there some way I can force repication (from a console?) and monitor the progress and see if/when/why it fails.

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  • single point of failure in IIS Web Farm Framework setting?

    - by aamir sajjad
    ASP.NET WEB API Windows Server 2008 R2/IIS 7.5/Web Farm Framework 2.5 I am planning to deploy application across 4 web servers. Should i use shared content/configuration using DFS among web servers for web farm scenario? Second option is to use Web Farm Framework for deployment. Furthermore, is there chance of single point of failure in WFF? for example what if primary server goes down. which option would be better? pros and cons of each of the above. I appreciate your response.

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  • Nginx Fastcgi performance issues

    - by Barry
    I am running several fastcgi servers behind Nginx. I run 3 Nginx workers and 6 fastcgi servers as upstream backends. When I run load tests of 1 req per sec, I can clearly see that on avarage a reply is 0.1sec, but from time to time there are 3.1 sec responses. It is a suspiciously deterministic number and it happens even at very small loads from time to time. Both CPU and Memory are of no issue at all. Any idea where this delay may be comming from? Any suggestions how to debug this? Many thanks, Barry.

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  • Poor upload/download speed on 2 x ADSL lines into a Cisco 2621XM

    - by 2020mobile
    Hi, Sorry never been on this site before so I apologise if not the right section or even forum. I have users complaining of very slow internetn connectivity on site and have checked with our ISP who have said that the line is testing at 8mb. We have 2 x BT lines that have our ISP broadand on them. Both lines go into a Cisco 2600 series router that then has a PIX firewall off that. Connectivity is successful just gone really slow and unable to download anything. Config is below: version 12.3 no service pad service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname ROUTER-ADSL-INTERNET ! logging buffered 16384 informational enable secret xxx enable password xxx ! username xxx username xxx clock summer-time UK recurring last Sun Mar 1:00 last Sun Oct 1:00 aaa new-model ! ! aaa authentication login default local aaa authorization exec default local aaa session-id common ip subnet-zero no ip source-route ! ! ! ip audit notify log ip audit po max-events 100 no ip bootp server ip name-server 213.208.106.212 no mpls ldp logging neighbor-changes no ftp-server write-enable ! ! ! ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination ! ! ! ! ! ! ! ! interface ATM0/0 description 01270 111111 no ip address no atm ilmi-keepalive pvc 0/38 encapsulation aal5mux ppp dialer dialer pool-member 1 ! dsl operating-mode auto ! interface FastEthernet0/0 ip address 82.133.32.9 255.255.255.248 shutdown speed 100 full-duplex no cdp enable ! interface ATM0/1 description 01270 222222 no ip address no atm ilmi-keepalive pvc 0/38 encapsulation aal5mux ppp dialer dialer pool-member 1 ! dsl operating-mode auto ! interface FastEthernet0/1 ip address 217.146.115.49 255.255.255.240 duplex auto speed auto no cdp enable ! interface Dialer0 ip address 217.146.115.250 255.255.255.248 encapsulation ppp dialer pool 1 dialer-group 1 ppp authentication chap callin ppp chap hostname [email protected] ppp chap password 7 xxxxx ppp multilink ! ip classless ip route 0.0.0.0 0.0.0.0 Dialer0 ! no ip http server no ip http secure-server ! no logging trap access-list 10 permit 217.146.115.50 access-list 10 permit 82.133.32.10 access-list 10 deny any access-list 22 permit 217.146.115.50 access-list 22 permit 217.206.239.86 access-list 22 permit 82.133.32.10 access-list 22 deny any dialer-list 1 protocol ip permit no cdp run ! ! snmp-server community xxxxxx RO 10 snmp-server enable traps tty radius-server authorization permit missing Service-Type ! ! ! ! ! ! line con 0 exec-timeout 5 0 password 7 xxxxxx line aux 0 no exec line vty 0 4 access-class 22 in exec-timeout 5 0 password 7 xxxxxx transport input telnet ssh transport output none line vty 5 15 password 7 xxxxxx transport input telnet ssh ! ntp clock-period 17180095 ntp server 130.88.200.98 ! ! end Now my knowledge is very limited but ISP have said that while the lines are bonded each needs a seperate login as they've recently changed their L2TP router and that enforces the use of seperate logins - when the lines were configured we were given two logins. So, my question is what changes do I need to make to the config in order to get this working? it was ok before their change and I do have another login :- 01270 111111 - [email protected] 01270 222222 - [email protected] Apologies for the long email and thanks for taking the time to read it. Any more info I can provide please let me know. Thanks,

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  • share one vpn connection through windows rras with other clients

    - by KTYP
    I'm having a Cisco VPN connection to access our branch office. Since several people using the VPN I'm planing to install the VPN client on one of our server and share it through RRAS to save the licenses (like site - to - site). I install RRAS on a windows 2008 R2 (svrw2k8r2) and made the static routes on client computers. I could able to ping to the VPN's IP on svrw2k8r2 server but they can't seems to connect to the servers in other branch through this setup. Below is my setup My Branch Server: svrw2k8r2 - Windows 2008 R2 IP: 192.168.40.100/24 VPN IP: 10.0.100.12/8 Clients Win7 IP: 192.168.40.101 - 110 / 24 Other Branch Servers IP:10.10.0.10-20/24

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  • Restrict IPMI access on Dell BMC and iDRAC to an allowed IP range

    - by edgester
    I'm trying to secure the iDRAC's and BMC's on some of my Dell servers (R210, R410, R510). I want to restrict access to IPMI commands to only a few IP addresses. I've successfully restricted access to the iDrac using the instructions from http://support.dell.com/support/edocs/software/smdrac3/idrac/idrac10mono/en/ug/html/racugc2d.htm#wp1181529 , but the IP restrictions do not affect IPMI. A separate management network is not practical at this time because of lack or ports and some Dell BMC's don't offer a separate port. I'm told by my networking group that our switches don't support trunking, so using the vlan tagging is not an option either. Is there a way restrict the IPMI access to a list of allowed addresses? FYI, for various reasons, I have a mix of Dell servers with BMC's, iDrac Express and iDrac enterprise management features.

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  • Exchange 2007 CCR: Logs not replicating to passive node partition

    - by yum_tacos4u
    In my environment I have setup Exchange 2007 in an CCR cluster, mirroring our main servers to a set of servers in passive mode. One of the partitions on the passive node that I have setup for the logs for Exchange 2007 has faulted, causing the partition to be unreadable. I have replaced the partition on the passive node, and setup the drive to mirror the one in active mode, but the logs are not replicating since the change. Is there anyway to force the replication of the new drive for the logs to the new partition? Any idea why the logs are not replicating? Any help or comments is appreciated, and thanks in advance.

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  • network issue ubuntu 8.04 in vmware esx

    - by hoberion
    ok, this is really pissing me off I have one ubuntu 8.04 instance running on vmware (esx) which decided after a reboot to stop resolving dns requests, I also cant connect to it using ssh although I can ping the server and its really that server (when I shutdown the server the ping also stops) stuff I tried: - reboot again :) - nslookup - serverip - setting networking to dhcp - offering some cute kittens to lucifer - removing the virtual nic and adding another (to get a different mac) - migrating the instance to another esx host - drinking 20 cups of espresso - stopped all services - running dnsmasq on another server and connecting to that dns - tcpdumping - disabling ip6 symptoms: cant resolve anything nslookup just says "no servers found..." although I can ping the servers traceroute to gateway doesnt work (even with traceroute -4 -n gatewayip) collegues laughing at me any thoughts

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  • Transferring FSMO roles over vpn

    - by Tom Bowman
    I have a server located at one of our offices which is quite old and is due to be upgraded soon, this server holds the FSMO roles, I have another server in another office, both are DC's in the same domain and both are replicated, both run Server 2003 standard. I need to transfer the FSMO roles from the old server to the the one I have in the other office before I upgrade. Also I am looking at bringing in Exchange 2010 server however I cant install/configure that until I transfer the roles as it needs to be at the same site as the schema master. My question really is as both servers replicate over a vpn, how quickly will the roles transfer and will there be downtime as I need to make sure that while the transfer is running, both servers will service logon's and share files. or would it be better to do it out of hours? many thanks and apologies if I've missed out anything Regards Tom

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  • Load balancing and HTTPS strategies

    - by Dan
    I am faced with the following problem: Servers get saturated since current load balancing strategy is based on client IP. Some corporate clients access our servers from behind large proxies so all clients appear with same IP to our load balancer. I think we are using some hardware load balancing device (can investigate further if necessary). We need to maintain session affinity (site is constructed in ASP), so all requests with same IP get routed to the same node. Since all the communication goes over the HTTPS, no request data (like session Id) is available to balancer as a client discriminator. Is there a way to use some other data besides the IP to distinguish between clients and route the clients even when coming from same IP to different nodes? Note: I need to maintain the traffic between the balancer and nodes safe (encrypted).

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  • SQL Server 2008 Hardware Recommendation;

    - by Jay
    Hi,I work for a large fortune 500 company. We have several SQL 2005 Servers running on DELL Poweredge 2950 with 8 GB RAM and 4 CPU's. Storage is DMX RAID 10. We are in the process of migrating to sql 2008. We are planning on consolidating multiple sql 2005 into single SQL 2008 Server.If anyone can suggest hardware I would appreciate. We have looked at DELL R710, I was wondering if there are other servers that are good for running SQL 2008. Thanks

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  • Debian Squeeze Upgrade Breaks Apache SSL

    - by PP
    I upgraded my Debian from Lenny to Squeeze. BIG MISTAKE. Now I get: [Tue Feb 08 16:34:57 2011] [error] Server should be SSL-aware but has no certificate configured [Hint: SSLCertificateFile] ((null):0) littered throughout /var/log/apache2/error.log. How to fix? Looking through a mess of forums it is easy to see that Apache changed the way it reads configurations around 2.2.13. Great. But not great for me or the millions of other web administrators who now have web servers that simply won't start, and an error message that says NOTHING about the problem or how to fix. Anybody else actually solved this issue? I had perfectly working virtual servers with SSL before (for years actually).

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  • Q8300 Core-2 Quad vs X3360 Xeon

    - by alchemical
    I'm looking at this ABMX server, and trying to decide on the CPU. I'm purchasing 2 servers, to be used as dedicated web and DB servers for a web site that has low traffic now but could ramp up quickly. Just trying to decide if it is worth about $200 more (per server) for the Xeon vs the core-2. Passmark rates them at 3567 and 4153, which didn't seem that different. I'm not planning at this point to need virtualization. I did hear rumors that Xeon stands up better in a 24/7 server environment, but heard others say there wasn't that much difference. Planning to run Windows Server 2008, likely the R2 release, with 8GB RAM.

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  • Load balanced asp.net websites and required memory usage

    - by Matt
    Each of my servers has 8Gb RAM and the memory usage hovers around 7Gb. I have a load balancer available to me but at the moment I'm worried that putting my sites through it will cause the platform to fall over. The load balancer would be configured with a sticky round-robin where a new connection is round robin but subsequent connections for the same source ip will remain on the same server (until a limit is reached). Thats all standard stuff. How do I know what memory usage my sites will need across the platform when I put them through the load balancer? Rather than knowing that a site is using 150mb on a particular server I could face a situation where the 150mb is taken up on each of the servers. I know that with only 1 gb free I could have a serious problem on my hands. If I free up some memory then how can I work out what I need to have free to prevent this from happening? Thanks Matt

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  • DNSBL listed at zen.spamhaus.org - cant get outgoing mail working? Am I interpreting the response correctly?

    - by Joe Hopfgartner
    I have problem with a mailserver and there is something I kind of not understand! I can connect, authenticate, specify the sender address - but when specifying the reciever i get a error 550 which looks like so: RCPT TO:[email protected] 550-DNSBL listed at zen.spamhaus.org 550 http://www.spamhaus.org/query/bl?ip=62.178.15.161 Now the strange thing is that 62.178.15.161 is my local client address. Not the servers ip address. Also the error code 550 seems to be defined as so: 550 Requested action not taken: mailbox unavailable To me that makes totally no sense. Why this error code with this spamhaus message? Why the local ip adress and not the servers? There is exim running and there is nothing turning up in the logs mail.err mail.info mail.log mail.warn in /var/log I looked up both the servers and the clients ip adress on blacklists. The clients ip adress is listed on some (as expected), but the server is totally clean. Here is the complete telnet log when I reproduced the error. Mail clients like Evolution and Thunderbird give me the same spamhaus error message. joe@joe-desktop:~$ telnet mail.hunsynth.org 25 Trying 193.164.132.42... Connected to mail.hunsynth.org. Escape character is '^]'. 220 hunsynth.org ESMTP Exim 4.69 Sat, 01 Jan 2011 17:52:45 +0100 HELP 214-Commands supported: 214 AUTH STARTTLS HELO EHLO MAIL RCPT DATA NOOP QUIT RSET HELP EHLO AUTH 250-hunsynth.org Hello chello062178015161.6.11.univie.teleweb.at [62.178.15.161] 250-SIZE 52428800 250-PIPELINING 250-AUTH PLAIN LOGIN CRAM-MD5 250-STARTTLS 250 HELP AUTH LOGIN 334 VXNlcm5hbWU6 dGVzdEBodW5zeW50aC5vcmc= 334 UGFzc3dvcmQ6 ***** 235 Authentication succeeded MAIL FROM:[email protected] 250 OK RCPT TO:[email protected] 550-DNSBL listed at zen.spamhaus.org 550 http://www.spamhaus.org/query/bl?ip=62.178.15.161 quit 221 hunsynth.org closing connection Connection closed by foreign host. joe@joe-desktop:~$ Update: I tried the same thing from my other server and could successfully send an email. So it really looks like the server does check the IP wich establiches the connection is in some blacklist. This is theoretically a good thing - but - the authentication on the server should prevent that? Or shouldn't it? Well I just think it would be absurd if I couldn't send email over my smtp server from my dynamic ISP connection because the dynamic is listed, altough i have a clean server with login?

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  • can't resolve host (A) but FQDN is fine

    - by user1431356
    I am getting inconsistent name resolution locally with DNS I have 3 2012 Standard servers and some weirdness on 1. It is a standard install with IIS role added. TEST01 is a dev server. 192.119.1.220 with a host header of TEST01. DATA01 runs internal DNS on .240 and all servers and clients point here for DNS. There is a forward in DNS to 192.119.1.1 (router) with ISP external DNS #s mapped. if I ping TEST01 from a non AD machine, it I get "Could not find Host TEST01" If I ping TEST01 from a domain machine(another server), it resolves the IP but does not respond. if I ping TEST01.AD.local, DNS resolves the IP, but times out. I can access IIS by entering http://test.WWWDOMAIN.com and I can RDP to it, just not ping. Any idea where I should start?

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