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  • access an IP restricted service from a dynamic IP (Broadband modem) on a windows machine

    - by Joel Alenchery
    Hi, I dont know if this is the correct place to ask this question but here goes .. (please note that I am pretty much a newbie in terms of networking and I work primarily on the windows platform) I have been working on accessing and consuming some web services in C#/ASP.Net, these web services that I consume are IP restricted. Currently they allow access only from my work network (we have a static ip set up through which all our internet requests are routed). Every now and then we have people who go out and about and are stuck with using a usb dongle based internet connection and hence are not able to now access these web services that they are working on. What I would like to do is to provide some way for these remote workers to access the IP restricted web services using the static ip at our office. For example when the remote worker tries to access a service say http://exampleService.com .. the request gets routed to some box at our office and then out to the actual service. That way the service always sees the static ip of the office and not the dynamic ip that the remote user is actually using. I have done a fair bit of googling and its difficult to search for it as most of the results come back for dynamic DNS which is not really what I am looking for. I have also looked at a couple of posts on here namely http://serverfault.com/questions/187231/accessing-ip-restricted-server-from-dynamic-ip which does provide some insight but the fellow seems to have access to the source that does the ip restriction and is able to change the restrictions. In my case i dont have that access. another one that looked interesting was http://serverfault.com/questions/136806/static-ip-for-dynamic-ip the first answer seems exactly what I need but I dont know how I would go about on a windows machine. any help would be really appreciated. (am sorry about being soo noob-ish) PS: Right now everyone is using RDC/LogMeIn to access an internet connected machine in the office to manually check the webservice and getting work done. Which is a very tedious process.

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  • How to connect through a proxy using Remote Desktop?

    - by scottmarlowe
    So I've got a home server running Windows Server 2003. I use a dual network card setup and Routing and Remote Access to link the internal, private network to the external connection. The external connection hooks directly to my cable modem (so no routers or other devices sitting between). The problem I'm having is that I can't connect remotely from a location outside the house (so connecting to the server's external connection) to the server using either Remote Desktop or VNC. I have enabled both ports in Routing and Remote Access's firewall to allow access, and I have enabled Remote Desktop in Windows Server 2003. The odd thing is that I can access my home server's SVN repository and I can even ping the server's IP. I am using the IP to attempt to connect, though I use a dyndns.com provided name to connect to my SVN repository, so it shouldn't make a difference (I know the IP is getting resolved correctly). Any ideas on where to start diagnosing this one? I haven't seen anything in my server's event log. If any other info is needed, let me know. Thanks. UPDATE: One last piece of information: We use a proxy server at work, which I'm nearly 100% sure is the culprit. I have a workaround--if I connect to our VPN (even though I'm already inside the building) I am able to connect to my home server. This is with VNC. However, is there a way to connect through a proxy using Remote Desktop? ONE MORE UPDATE: Indeed, it was the http proxy I'm sitting behind at work that was causing the issue. An acceptable workaround is to use my VPN connection to bypass the proxy, and I'm in!

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  • Domino to Exchange 2007 (or 2010) Design Concerns?

    - by NickToyota
    Today we got the executive green light to proceed with changing from a Domino platform to Exchange. The business prefers Exchange for a messaging platform. (even though IMO IBM Domino is fine - if it aint broke, don't fix it but it was not my call). I have been put in charge of Domino to Exchange process goes smoothly as possible. I have also been told to put together costs for this project. I have some questions and concerns re: network design, licensing, costs: The current setup is as follows. 1 HQ office (100 users), 1 secondary office (50 users), 5 branch offices (under 10 users). 5 different email domains Windows Server 2003 functional level with a few 2008 R2 Servers Lotus Domino Notes Servers (one in each office) Ironmail Appliance Public Domino Web Mail server Majority G5+ Proliant Servers Domino Blackberry Enterprise license and server No VoIP phones What are the basic hardware requirements for Exchange 2007 or 2010? Can I simply purchase a single physical server? Will each office require an Exchange server or possibly additional servers (roles)? How is email routed to the smaller branch offices? Standard or Enterprise licenses? The business has been running Domino (messaging and application services) for over 10 years and also want Exchange to support email services, Blackberry, Outlook Web Access, possibly support for iPhone devices. Thank you Serverfault universe.

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  • Xen networking is inconsistent in multiple ways

    - by WildVelociraptor
    I've been running xen for a few weeks now on an Ubuntu 12.04 server. I've got 3 guests: a Windows Server 2003 guest, an Ubuntu guest, and a Windows 7 Guest. My Server 2003 guest seems to work fine; I can ping it from the network, the hostname resolves correctly, and it can see the internet. This guest is attached to xenbr0, and its IP is 10.100.1.21. My Win7 guest is what is driving me crazy. I use the same configuration script as a base, changing the important parts (hostname and boot disk, mainly). It installed correctly, and is currently running, but I am unable to ping this guest. It's hostname is "alexander", with an IP of 10.100.1.22. It is also using xenbr0. The guest can ping the firewall and various IP addressess, but seems unable to resolve hostnames. Now heres the weird part: when I use rdesktop (RDP client) from my laptop (not the xen host) to connect to alexander, it works just fine. It apparently resolves the hostname fine, and does the same with the IP address. So, can someone tell me why I can access this guest using RDP, but not using ping, nslookup, traceroute, etc? It's apparently invisible to all but RDP. Also, is it okay to use two guests on the same bridge, or do i need different ones for each guest? Thanks in advance for any help. Regards

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  • CD-ROM Cant Be Accessed After Installing VMware Tools on VMware Server 2.0.2

    - by Optimal Solutions
    Using VMware Server 2.02, I set up a new VM (Windows XP Pro) applied all of the updates, added Windows addons from the install CD, etc... I got it to a stable point and up through that point I was able to access the CD-ROM drive (E: on my host). What I never did before was install "VMware Tools" and since it claims to give better mouse and video support, I gave it a shot. What it does is it places the install package in a virtual CD-ROM drive. I ran the install, no errors and it wants a reboot. I log back in after reboot and pop in the install CD for Microsoft Office 2003 and I receive the message "Please Insert A Disc Into Drive D:". Drive D: would be the next logical drive after the C: drive where I chose to install the OS. The message box sits there and if I click "Cancel", to return to Windows Explorer, the status bar seems to blink ever 1/2 second - as if its polling for a CD-ROM drive or something. No bangs or exclamations in the Device Manager for any hardware. I had taken a snapshot prior to the VMware Tools install and upon restoring it, the CD-ROM is back. I made copies of two other VMs, installed the VMware Tools on those VMs and both experienced the same issues: Windows 2003 Server and Windows 7 (32-bit). Has anyone seen this issue and know of a fix for this? It would be nice to have the better graphics and better mouse control AND use my CD-ROM drive as well! Thank you.

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  • SQL Server Installation: Is it 32 or 64 bit?

    - by CapBBeard
    Recently I was performing an OS upgrade on one of our DB servers, moving from Server 2003 to Server 2008. The DBMS is SQL Server 2005. While reinstalling SQL on the new Windows installation, I went to another of our DB servers to verify a couple of settings. Now, I always thought this second server was Server 2003 x64 + SQL 2005 x64 (from what I'd been told), but I now have my doubts about this. I now suspect that it is in fact only 32 bit SQL, however I'd like to verify this. Here's some details: The OS is definitely 64 bit. xp_msver shows Platform as NT INTEL X86 SELECT @@VERSION shows Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86)... However sqlservr.exe is not shown with '* 32' in taskmgr, does anyone know why this is the case, if it is in fact 32 bit as claimed? Despite this, it does seem to be running out of the x86 program files folder. If I do the same checks on a confirmed 64 bit installation, it does give back the expected 64 bit readings, which can only prove that this server in question is only running in 32 bit. Now, that being the case, the question arises about how much memory this '32 bit' install can use. Task manager reports about 3.5GB memory usage for sqlservr.exe (The server has 16GB physical). I suspect that AWE has not been configured at all, and therefore the server will be significantly under-utilised (remembering that the OS is 64 bit) if SQL is simply using a 32bit address space. Is this assumption correct? I feel the server should have SQL reinstalled as 64 bit in order to fully utilise the hardware platform, however it is currently heavily in production; this will be no easy task. I suspect we may just have to configure AWE correctly and let it be for the time being (Unless this is a bad idea?). I apologise that this question is a little vague/lost; I'm no SQL expert, just trying to get a handle on what's going on here.

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  • Why can't I route to some sites from my MacBook Pro that I can see from my iPad?

    - by Robert Atkins
    I am on M1 Cable (residential) broadband in Singapore. I have an intermittent problem routing to some sites from my MacBook Pro—often Google-related sites (arduino.googlecode.com and ajax.googleapis.com right now, but sometimes even gmail.com.) This prevents StackExchange chat from working, for instance. Funny thing is, my iPad can route to those sites and they're on the same wireless network! I can ping the sites, but not traceroute to them which I find odd. That I can get through via the iPad implies the problem is with the MBP. In any case, calling M1 support is... not helpful. I get the same behaviour when I bypass the Airport Express entirely and plug the MBP directly into the cable modem. Can anybody explain a) how this is even possible and b) how to fix it? mella:~ ratkins$ ping ajax.googleapis.com PING googleapis.l.google.com (209.85.132.95): 56 data bytes 64 bytes from 209.85.132.95: icmp_seq=0 ttl=50 time=11.488 ms 64 bytes from 209.85.132.95: icmp_seq=1 ttl=53 time=13.012 ms 64 bytes from 209.85.132.95: icmp_seq=2 ttl=53 time=13.048 ms ^C --- googleapis.l.google.com ping statistics --- 3 packets transmitted, 3 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 11.488/12.516/13.048/0.727 ms mella:~ ratkins$ traceroute ajax.googleapis.com traceroute to googleapis.l.google.com (209.85.132.95), 64 hops max, 52 byte packets traceroute: sendto: No route to host 1 traceroute: wrote googleapis.l.google.com 52 chars, ret=-1 *traceroute: sendto: No route to host traceroute: wrote googleapis.l.google.com 52 chars, ret=-1 ^C mella:~ ratkins$ The traceroute from the iPad goes (and I'm copying this by hand): 10.0.1.1 119.56.34.1 172.20.8.222 172.31.253.11 202.65.245.1 202.65.245.142 209.85.243.156 72.14.233.145 209.85.132.82 From the MBP, I can't traceroute to any of the IPs from 172.20.8.222 onwards. [For extra flavour, not being able to access the above appears to stop me logging in to Server Fault via OpenID and formatting the above traceroutes correctly. Anyone with sufficient rep here to do so, I'd be much obliged.]

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  • Comparing Nginx+PHP-FPM to Apache-mod_php

    - by Rushi
    I'm running Drupal and trying to figure out the best stack to serve it. Apache + mod_php or Nginx + PHP-FPM I used ApacheBench (ab) and Siege to test both setups and I'm seeing Apache performing better. This surprises me a little bit since I've heard a lot of good things about Nginx + PHP-FPM. My current Nginx setup is something that is a bit out of the box, and the same goes for PHP-FPM What optimizations I can make to speed up the Nginx + PHP-FPM combo over Apache and mo_php ? In my tests using ab, Apache is outperforming Nginx significantly (higher requets/second and finishing tests much faster) I've googled around a bit, but since I've never using Nginx, PHP-FPM or FastCGI, I don't exactly know where to start PHP v5.2.13, Drupal v6, latest PHP-FPM and Nginx compiled from source. Apache v2.0.63 ApacheBench Nginx + PHP-FPM Server Software: nginx/0.7.67 Server Hostname: test2.com Server Port: 80 Concurrency Level: 25 ---> Time taken for tests: 158.510008 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 ---> Requests per second: 6.31 [#/sec] (mean) Time per request: 3962.750 [ms] (mean) Time per request: 158.510 [ms] (mean, across all concurrent requests) Transfer rate: 181.38 [Kbytes/sec] received ApacheBench Apache using mod_php Server Software: Apache/2.0.63 Server Hostname: test1.com Server Port: 80 Concurrency Level: 25 --> Time taken for tests: 63.556663 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 --> Requests per second: 15.73 [#/sec] (mean) Time per request: 1588.917 [ms] (mean) Time per request: 63.557 [ms] (mean, across all concurrent requests) Transfer rate: 103.94 [Kbytes/sec] received

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  • Is basing storage requirements based on IOPS sufficient?

    - by Boden
    The current system in question is running SBS 2003, and is going to be migrated on new hardware to SBS 2008. Currently I'm seeing on average 200-300 disk transfers per second total across all the arrays in the system. The array seeing the bulk of activity is a 6 disk 7200RPM RAID 6 and it struggles to keep up during high traffic times (idle time often only 10-20%; response times peaking 20-50+ ms). Based on some rough calculations this makes sense (avg ~245 IOPS on this array at 70/30 read to write ratio). I'm considering using a much simpler disk configuration using a single RAID 10 array of 10K disks. Using the same parameters for my calculations above, I'm getting 583 average random IOPS / sec. Granted SBS 2008 is not the same beast as 2003, but I'd like to make the assumption that it'll be similar in terms of disk performance, if not better (Exchange 2007 is easier on the disk and there's no ISA server). Am I correct in believing that the proposed system will be sufficient in terms of performance, or am I missing something? I've read so much about recommended disk configurations for various products like Exchange, and they often mention things like dedicating spindles to logs, etc. I understand the reasoning behind this, but if I've got more than enough random I/O overhead, does it really matter? I've always at the very least had separate spindles for the OS, but I could really reduce cost and complexity if I just had a single, good performing array. So as not to make you guys do my job for me, the generic version of this question is: if I have a projected IOPS figure for a new system, is it sufficient to use this value alone to spec the storage, ignoring "best practice" configurations? (given similar technology, not going from DAS to SAN or anything)

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  • Help setting up a secondary authoritative DNS server.

    - by GLB03
    We have three Authoritative DNS servers and three recursive/caching DNS servers on my campus. Authoritative servers DNS1- Windows 2003 DNS2- Old Red Hat ----- Replacing w/ newer version DNS3- Windows 2008 (I installed) Caching and Recursive resolvers servers Server1- Windows 2003 Server2- CentOS 5.2 (I installed) Server3- CentOS 5.3 (I installed) I am replacing DNS2 with a newer Red Hat version, but have no documentation on how it was implemented. I have setup caching and windows authoritative servers, but not a linux secondary authoritative server. I have a perl script from the original server that pulls data from our DNS1 server. We use DJBDNS and TinyDNS on our linux servers. Our Network Engineer says the DNS2 server I am replacing is an authoritative server that doesn't need to be caching, but the only instructions I see is for an Authoritative server that does caching as well. Can someone point me in the right directions. I thought I was on the right track with using these instructions but when I query my new dns server I get "No response from server", I have temporarily disabled iptables to eliminate it from being an issue. ps -aux | grep dns avahi 3493 0.0 0.2 2600 1272 ? Ss Apr24 0:05 avahi-daemon: running [newdns2.local] root 5254 0.0 0.1 3920 680 pts/0 R+ 09:56 0:00 grep dns root 6451 0.0 0.0 1528 308 ? S Apr29 0:00 supervise tinydns dnslog 6454 0.0 0.0 1540 308 ? S Apr29 0:00 multilog t ./main tinydns 9269 0.0 0.0 1652 308 ? S Apr29 0:00 /usr/local/bin/tinydns

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  • Webservice randomly dropping connections - possibly due to firewall nonevent data?

    - by adam
    I have a hosted webapp which requests data from a REST webservice in our office. Each page calls one (or several) webservices, which go from our host, via our firewall (a Watchguard Firebox) to a server in our office. All of a sudden, the app has dramatically slowed. We have determined that the webservice is timing out at random when called externally (it's fine when called within the office network). I'm pretty certain it's our connection which is dropping the webservice call, so I've written a quick php/curl script which calls the webservice over many iterations and shows the various timings. Below is an example output, showing both a failed and a successful call (with a 5 second timeout): http_code namelookup_time connect_time pretransfer_time starttransfer_time total_time 1 0 0.000096 0.0342 0.0000 0.0000 0.0342 2 200 0.000052 0.0332 0.1327 0.1751 0.1752 As per iteration #1 above, failed requests seem to be failing between connect and pretransfer. I'm not sure if this shows that the connection is successfully past the firewall, or could the firewall still cause an issue? Our firewall is showing a series of nondata event log messages for the relevant access rule. Our IT team tells me these are routine, although I can find no mention of these in Google. I'm not sure if this fits in between connect and pretransfer. Having elinated the webservice server (by testing internally) and the live webapp (by testing different code on different external servers, I am left suspecting the connection to the office. Could the firebox nondata events be causing a problem between connect and pretransfer?

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  • centos TCP/IP connection very slow

    - by yuli chika
    I have a VSP (centos6.1 64bit) with 4gb ram. It always runs well, but in recent few days, the server become slowly. open a small css file need 22 seconds(2kb). tested in home/office/phone with (IE,chrome,safari,firefox). see in firebug networking DNS Lookup ?4?ms Connecting ?21.18?s Sending 1?ms Waiting ?115?ms Receiving ?9?ms The connection cost 21.18 seconds I have checked all the log file, there have no error. top commond, still have free memory. top - 00:23:15 up 8 days, 3:57, 1 user, load average: 3.60, 3.42, 3.83 Tasks: 221 total, 4 running, 217 sleeping, 0 stopped, 0 zombie Cpu(s): 19.3%us, 3.2%sy, 0.0%ni, 76.1%id, 1.4%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 4194304k total, 3247724k used, 946580k free, 0k buffers Swap: 0k total, 0k used, 0k free, 0k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 32357 mysql 15 0 3710m 835m 6268 S 34.5 20.4 39:14.40 mysqld 9780 apache 15 0 442m 59m 12m S 33.2 1.4 0:05.69 httpd 9842 apache 15 0 403m 26m 10m S 16.9 0.7 0:01.23 httpd 9847 apache 15 0 412m 45m 22m R 15.3 1.1 0:01.00 httpd 9834 apache 15 0 426m 46m 11m R 13.0 1.1 0:02.22 httpd 9891 apache 15 0 407m 43m 19m S 8.0 1.1 0:00.33 httpd 9845 apache 15 0 414m 51m 24m S 6.0 1.3 0:01.53 httpd 9827 apache 15 0 402m 28m 11m S 3.3 0.7 0:02.69 httpd 9768 apache 16 0 414m 51m 24m S 3.0 1.3 0:06.51 httpd 9889 root 15 0 211m 12m 8160 S 2.7 0.3 0:00.32 php 9702 apache 15 0 415m 55m 26m S 1.7 1.4 0:10.67 httpd 9844 apache 15 0 413m 47m 21m S 1.7 1.2 0:01.21 httpd 9697 apache 15 0 414m 51m 24m S 1.3 1.3 0:11.05 httpd 9778 apache 15 0 414m 53m 25m S 1.3 1.3 0:05.38 httpd 9772 apache 15 0 414m 51m 23m R 0.7 1.3 0:05.04 httpd 9823 apache 15 0 415m 50m 23m S 0.7 1.2 0:03.97 httpd 9837 apache 15 0 402m 27m 11m S 0.3 0.7 0:01.04 httpd Then, how to check where is the problem and fixed it? I haven't change and config files in these days. Thanks.

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  • DL380 G7: Not able to access ILO on DL380 via ssh from a client

    - by user117140
    I have problem where I can't access my ILO(ssh to ILO IP) thru client which is in different network.I am able to ping ILO IP thru this clinet but ssh access is not possible. Is it possible to have ssh to ILO IP from a client which is in different network? FYI, from the same client I can do ssh to server application IP but ssh to this server ILO IP is not possible. Kindly help? Some more info added: ILO IP address is 10.247.172.70 and its VLAN is different than Client VLAN. Client IP address is 10.247.167.80. ping to ILO IP from this client is possible but not ssh. I can do ssh to ILO IP if I try to do it from the server(hostname:node1) having ILO port or from the other node of this cluster itself,So ssh login is enabled. [root@node1 ~]$ssh -v 10.247.173.70 OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to 10.247.173.70 [10.247.173.70] port 22. [root@node1 ~]$ping 10.247.173.70 PING 10.247.173.70 (10.247.173.70) 56(84) bytes of data. 64 bytes from 10.247.173.70: icmp_seq=1 ttl=254 time=0.283 ms 64 bytes from 10.247.173.70: icmp_seq=2 ttl=254 time=0.344 ms 64 bytes from 10.247.173.70: icmp_seq=3 ttl=254 time=0.324 ms 64 bytes from 10.247.173.70: icmp_seq=4 ttl=254 time=0.367 ms

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  • pptpd-logwtmp.so config wrong ip address

    - by rgc
    i have setup a pptp vpn on ubuntu 10.04, and i config local ip address , remote ip address as following: local IP address 10.0.30.100 remote IP address 192.168.13.100 after i use windows to connect to vpn server in windows , i only could send packets, can not receive any packets. i also check the pptp log in ubuntu server, and find this strange thing rcvd [IPCP ConfAck id=0x1 <compress VJ 0f 01> <addr 10.0.30.100>] rcvd [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 192.168.13.100> <ms-dns1 202.119.32.6> <ms-dns2 202.119.32.12>] sent [IPCP ConfAck id=0x2 <compress VJ 0f 01> <addr 192.168.13.100> <ms-dns1 202.119.32.6> <ms-dns2 202.119.32.12>] Cannot determine ethernet address for proxy ARP local IP address 10.0.30.100 remote IP address 192.168.13.100 pptpd-logwtmp.so ip-up ppp0 **172.25.146.174** i did not set 172.25.146.174, it should be 192.168.13.100, can anyone tell me what should i do to fix this problem?

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  • Deciphering an IIS6 Httperr log file

    - by smackaysmith
    We have a Windows 2003 R2 SP2 server with iis6 that is creating a 1024kb httperr file every minute. I can't figure out what I'm looking at. Here's a snippet: 2010-03-24 13:15:05 10.53.2.35 1667 10.53.2.12 80 HTTP/1.1 PUT /hserver.dll?&V01|&IMAC=0080646077AB|CID=32|CN=LWT0080646077AB|ED=1|IP=10.53.2.35|SM=255.255.255.0|GW=10.53.2.1|SN=10.53.2.255|DM=logs.com|1D=10.53.2.12|2D=10.101.2.12|0D=1|AL=/usr/sbin/netxserv|AV=4.1.0.0|CP=VIAüEstherüprocessorüü800MHz|CPS=800|RM=190512|B1=1.18|PD2=1024x768x16ü@ü60Hz|IM=6.6.2-02|CI=3600|SN#=6KHDG301300|OS=23|VI=1|P1=24|TZO=-301|TZ=CDT|FS=128|MD=2003-04|CO=|LO=|AP0=BaseüSystem|NA|6.6.2-02|AP1=RapportüAgent|NA|4.1.0-3.26|AP2=TrueType|NA|6.8.0-3.4|AP3=WebFonts|NA|2.0.4-3.6|AP4=TrueTypeüFonts|NA|6.8.0-3.5|AP5=Network_login|NA|1.0.0-1.0.3|AP6=ScreenüSaver|NA|3.13|AP7=DMonitor|NA|1.0.0-0.4.0|AP8=MozillaüFirefox_15|NA|1.5.0.8-3.6|AP9=RemoteüShadow|NA|3.17|AP10=RemoteüDesktop|NA|1.6.0-1.0|AP11=SNMP|NA|5.1.3.1-3.13|AP12=LinuxüPrinting|NA|3.8.27-3.33|AP13=SSH|NA|3.8.1-3.25|AP14=ThinPrint|NA|6.2.87-0.2|AP15=XDMCP|NA|6.8.0-3.29|AP16=Ericom|NA|8.2.0-3.29|AP17=Daylightüsavingütimeüupdate|NA|1.1.0-1.0.0| 411 - LengthRequired - What on earth am I looking at? Nothing in the system or app logs. Finally, in iis manager, Default Web Site label has boxes instead of spaces. Very odd.

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  • Performance: Nginx SSL slowness or just SSL slowness in general?

    - by Mauvis Ledford
    I have an Amazon Web Services setup with an Apache instance behind Nginx with Nginx handling SSL and serving everything but the .php pages. In my ApacheBench tests I'm seeing this for my most expensive API call (which cache via Memcached): 100 concurrent calls to API call (http): 115ms (median) 260ms (max) 100 concurrent calls to API call (https): 6.1s (median) 11.9s (max) I've done a bit of research, disabled the most expensive SSL ciphers and enabled SSL caching (I know it doesn't help in this particular test.) Can you tell me why my SSL is taking so long? I've set up a massive EC2 server with 8CPUs and even applying consistent load to it only brings it up to 50% total CPU. I have 8 Nginx workers set and a bunch of Apache. Currently this whole setup is on one EC2 box but I plan to split it up and load balance it. There have been a few questions on this topic but none of those answers (disable expensive ciphers, cache ssl, seem to do anything.) Sample results below: $ ab -k -n 100 -c 100 https://URL This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking URL.com (be patient).....done Server Software: nginx/1.0.15 Server Hostname: URL.com Server Port: 443 SSL/TLS Protocol: TLSv1/SSLv3,AES256-SHA,2048,256 Document Path: /PATH Document Length: 73142 bytes Concurrency Level: 100 Time taken for tests: 12.204 seconds Complete requests: 100 Failed requests: 0 Write errors: 0 Keep-Alive requests: 0 Total transferred: 7351097 bytes HTML transferred: 7314200 bytes Requests per second: 8.19 [#/sec] (mean) Time per request: 12203.589 [ms] (mean) Time per request: 122.036 [ms] (mean, across all concurrent requests) Transfer rate: 588.25 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 65 168 64.1 162 268 Processing: 385 6096 3438.6 6199 11928 Waiting: 379 6091 3438.5 6194 11923 Total: 449 6264 3476.4 6323 12196 Percentage of the requests served within a certain time (ms) 50% 6323 66% 8244 75% 9321 80% 9919 90% 11119 95% 11720 98% 12076 99% 12196 100% 12196 (longest request)

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  • How to access Windows Server 2008 R2 file shares from a different subnet

    - by Lloyd Cotten
    We have a couple of severs that used to be Windows Server 2003 that we recently upgraded to Windows Server 2008 R2. A couple of details to set the situation up: We wiped the OS and re-installed. These servers are on one subnet (172.16.x.x) and we are trying to access some file shares on them from another subnet (10.34.x.x). Firewall is disabled on these servers. Trying to access with UNC "\172.16.x.x\sharename" and net use \172.16.x.x However, we're having problems doing this. We are getting "The network path was not found". Here's some of the things we've tried so far and the result: Tried accessing the share from other (non-2008) servers on the same subnet... Success! Ping servers from different subnet... Success! Telnet connection into port 139 from different subnet... Success! Took a scan through Local Security Policies to see if something obvious needed to be enabled / disabled / configured... Fail I'm not sure where to look next. I know that the router between the two subnets is locked down pretty good, but this did work for our 2003 servers. Has anything changed in the way of ports used for UNC / file share access in 2008? Maybe I'm missing some security policy setting? Hoping somebody can take pity on a poor programming guy that can't figure out something really simple. :-) Thanks!

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  • Why can't I route to some sites from my MacBook Pro that I can see from my iPad? [closed]

    - by Robert Atkins
    I am on M1 Cable (residential) broadband in Singapore. I have an intermittent problem routing to some sites from my MacBook Pro—often Google-related sites (arduino.googlecode.com and ajax.googleapis.com right now, but sometimes even gmail.com.) This prevents StackExchange chat from working, for instance. Funny thing is, my iPad can route to those sites and they're on the same wireless network! I can ping the sites, but not traceroute to them which I find odd. That I can get through via the iPad implies the problem is with the MBP. In any case, calling M1 support is... not helpful. I get the same behaviour when I bypass the Airport Express entirely and plug the MBP directly into the cable modem. Can anybody explain a) how this is even possible and b) how to fix it? mella:~ ratkins$ ping ajax.googleapis.com PING googleapis.l.google.com (209.85.132.95): 56 data bytes 64 bytes from 209.85.132.95: icmp_seq=0 ttl=50 time=11.488 ms 64 bytes from 209.85.132.95: icmp_seq=1 ttl=53 time=13.012 ms 64 bytes from 209.85.132.95: icmp_seq=2 ttl=53 time=13.048 ms ^C --- googleapis.l.google.com ping statistics --- 3 packets transmitted, 3 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 11.488/12.516/13.048/0.727 ms mella:~ ratkins$ traceroute ajax.googleapis.com traceroute to googleapis.l.google.com (209.85.132.95), 64 hops max, 52 byte packets traceroute: sendto: No route to host 1 traceroute: wrote googleapis.l.google.com 52 chars, ret=-1 *traceroute: sendto: No route to host traceroute: wrote googleapis.l.google.com 52 chars, ret=-1 ^C mella:~ ratkins$ The traceroute from the iPad goes (and I'm copying this by hand): 10.0.1.1 119.56.34.1 172.20.8.222 172.31.253.11 202.65.245.1 202.65.245.142 209.85.243.156 72.14.233.145 209.85.132.82 From the MBP, I can't traceroute to any of the IPs from 172.20.8.222 onwards. [For extra flavour, not being able to access the above appears to stop me logging in to Server Fault via OpenID and formatting the above traceroutes correctly. Anyone with sufficient rep here to do so, I'd be much obliged.]

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  • DPM 2007 clashing with existing SQL backup job

    - by Paul D'Ambra
    I've recently installed a DPM2007 server on Server 2003 and have set up a protection group against a server 2003 server running SQL 2005 SP3. The SQL server in question has a full backup (as a sql agent job) once a day and transaction log backups hourly. These are zipped up and FTP'd to a server offsite by a scheduled task. Since adding the DPM job I'm receiving many error messages: DPM tried to do a SQL log backup, either as part of a backup job or a recovery to latest point in time job. The SQL log backup job has detected a discontinuity in the SQL log chain for database SERVER_NAME\DB_Name since the last backup. All incremental backup jobs will fail until an express full backup runs. My google-fu suggests that I need to change the full backup my sqlagent job is running to a copy_only job. But I think this means that I can't use that backup with the transaction_logs to restore the database if the building (including the DPM server) burns down. I'm sure I'm missing something obvious and thought I'd see what the hivemind suggests. It is an option to set-up a co-located DPM server elsewhere and have DPM stream the backup but that's obviously more expensive than the current set up. Many thanks in advance

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  • Webserver max CPU when apache and MYSQL are ran together

    - by Tim
    This website has been running fine without issues, Recently it went down. After some investigation it looks like the combo of MYSQL and Apache bring the box to its knees. Apache can run find serving static web pages and MYSQL can run fine when the website isn't working. As soon as the website is enabled with SQL running the CPU on the box remains at 100%. Picture of the usage: http://i.stack.imgur.com/GG2NC.png I've checked the sql database for errors, tried tuning nearly every parameter in apache/sql's conf file for performance. The server is a redhat based box running the latest software packages. Any help/suggestions are welcome. Doing an strace on a high cpu apache process I see the following: read(14, "", 8192) = 0 close(14) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 14 fcntl64(14, F_SETFL, O_RDONLY) = 0 fcntl64(14, F_GETFL) = 0x2 (flags O_RDWR) connect(14, {sa_family=AF_FILE, path="/var/lib/mysql/mysql.sock"...}, 110) = 0 setsockopt(14, SOL_SOCKET, SO_RCVTIMEO, "\2003\341\1\0\0\0\0", 8) = 0 setsockopt(14, SOL_SOCKET, SO_SNDTIMEO, "\2003\341\1\0\0\0\0", 8) = 0 setsockopt(14, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported) setsockopt(14, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0 Here is what I see from a mysql process: futex(0x86fc9a4, FUTEX_WAIT_PRIVATE, 39, NULL) = 0 futex(0x86fc734, FUTEX_WAIT_PRIVATE, 2, NULL) = 0 futex(0x86fc734, FUTEX_WAKE_PRIVATE, 1) = 0 gettimeofday({1301465020, 141613}, NULL) = 0 clock_gettime(CLOCK_REALTIME, {1301465020, 141699633}) = 0 futex(0x8707a64, FUTEX_WAIT_PRIVATE, 1, {4, 999913367}) = 0 futex(0x8707a40, FUTEX_WAIT_PRIVATE, 2, NULL) = 0 futex(0x8707a40, FUTEX_WAKE_PRIVATE, 1) = 0 exit_group(0) = ?

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  • Setting up Live @ EDU

    - by user73721
    [PROBLEM] Hello everyone. I have a small issue here. We are trying to get our exchange accounts for students only ported over from an exchange server 2003 to the Microsoft cloud services known as live @ EDU. The problem we are having is that in order to do this we need to install 2 pieces of software 1: OLSync 2: Microsoft Identity Life cycle Manager "Download the Galsync.msi here" the "Here" link takes you to a page that needs a login for an admin account for live @ EDU. That part works. However once logged in it redirects to a page that states: https://connect.microsoft.com/site185/Downloads/DownloadDetails.aspx?DownloadID=26407 Page Not Found The content that you requested cannot be found or you do not have permission to view it. If you believe you have reached this page in error, click the Help link at the top of the page to report the issue and include this ID in your e-mail: afa16bf4-3df0-437c-893a-8005f978c96c [WHAT I NEED] I need to download that file. Does anyone know of an alternative location for that installation file? I also need to obtain Identity Lifecycle Management (ILM) Server 2007, Feature Pack 1 (FP1). If anyone has any helpful information that would be fantastic! As well if anyone has completed a migration of account from a on site exchange 2003 server to the Microsoft Live @ EDU servers any general guidance would be helpful! Thanks in advance.

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  • Networking 2 Virtual PC with one VPC as DHCP server

    - by vivek
    My host OS is Win XP Professional. The host has a real network connection via DSL and I created a second network connection using Microsoft Loopback Adapter. Internet connection sharing is enabled. The Microsoft Loopback adapter has a IP address of 192.168.0.1. I have 1 Virtual PC which has Windows Server 2003. I have setup the network connection on this VPC to use Microsoft Loopback Adapter. I setup this VPC to be the Domain Controller , DNS Server and DHCP Server. I set this to a static IP address 192.168.0.2 (on the same subnet as the MS Loopback adapter) I have a second Virtual PC which also has Windows Server 2003. The network connection on this VPC is set to "Local Only". I want this VPC to get its IP address from the 1st VPC on which I setup as a DHCP server. What i want is the 2 VPC should be in a network with one of the VPC acting as the domain controller, DNS Server and DHCP server. The second VPC shoud get its IP address from the 1st VPC. It should be a part of the domain of the 1st VPC. When i tried to make the second VPC get the IP address from the first VPC I am not succeeding. Can somebody post some suggestions on how to go about this ?

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  • Log Shipping breaking daily on SQL Server 2005

    - by IT2
    I am facing a somewhat serious problem with Log Shipping on SQL Server 2005 and I am having trouble to correct it, so I will try some help from SF's experts. I have a Windows 2003 Server (PROD) that ships transactional log backups to another two servers: STAND1: Windows 2003 Server with SQL Server 2005. STAND2: Windows 2008 R2 Server with SQL Server 2005. The problem is that Log Shipping to STAND2 is breaking for ~ 90 minutes some times of the day and returning back without intervention. The breaking occur at times when the backup file is larger (after reindexing, etc). I can see the message below logged on the COPY job: *** Error: The specified network name is no longer available The copy agent was breaking dozens times a day only to STAND2 server, and after the changes below "only" breaks ~ two times a day: The frequency of the backup job was changed from 5 minutes to 10 minutes. Instead of backing up the 4 databases to the same folder, the log backups are now saved on separated folders for each database. The backup job doesn't run 24hs now, and only for 14 hours a day, when people are working on the database. I configured the SQL Server instances on the three servers to limit the memory, leaving more memory to the OS. Now I don't know what to do. Any help will be much appreciated! Thanks!

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  • CentOS 6.3 Virtual under OpenVZ cannot ping, host lookups, outbound connections while postfix running

    - by Paul Cravey
    My best theory is that some kernel limit is being hit preventing outbound connections. We have tried basically everything from tcpdumps to provisioning an entirely new virtual server (we do not have this problem on any other virtuals), however the problem somehow carried over, even with new postfix build (working). Emails work, and outbound connections work, so long as postfix does not have too much going on. /proc/user_beancounters shows no limits being hit (show below). Nevertheless, pings fail even to IP addresses. TCP stack appears healthy. Load is low. No iowait. Flushed iptables already. Has anyone experienced anything like this? uid resource held maxheld barrier limit failcnt 3: kmemsize 166216365 170262528 9223372036854775807 9223372036854775807 0 lockedpages 0 0 9223372036854775807 9223372036854775807 0 privvmpages 285727 351885 9223372036854775807 9223372036854775807 0 shmpages 16933 17605 9223372036854775807 9223372036854775807 0 dummy 0 0 0 0 0 numproc 150 303 9223372036854775807 9223372036854775807 0 physpages 314156 326191 0 1280000 0 vmguarpages 0 0 9223372036854775807 9223372036854775807 0 oomguarpages 165355 165355 9223372036854775807 9223372036854775807 0 numtcpsock 89 172 9223372036854775807 9223372036854775807 0 numflock 22 76 9223372036854775807 9223372036854775807 0 numpty 1 2 9223372036854775807 9223372036854775807 0 numsiginfo 0 75 9223372036854775807 9223372036854775807 0 tcpsndbuf 2733472 4371752 9223372036854775807 9223372036854775807 0 tcprcvbuf 1798336 5427296 9223372036854775807 9223372036854775807 0 othersockbuf 491120 1000760 9223372036854775807 9223372036854775807 0 dgramrcvbuf 0 238728 9223372036854775807 9223372036854775807 0 numothersock 361 505 9223372036854775807 9223372036854775807 0 dcachesize 135941831 136114679 9223372036854775807 9223372036854775807 0 numfile 2905 4990 9223372036854775807 9223372036854775807 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 numiptent 8 9 9223372036854775807 9223372036854775807 0 [root@bni /]# ping 4.2.2.1 PING 4.2.2.1 (4.2.2.1) 56(84) bytes of data. --- 4.2.2.1 ping statistics --- 9 packets transmitted, 0 received, 100% packet loss, time 8493ms [root@bni /]# service postfix stop [root@bni /]# ping 4.2.2.1 PING 4.2.2.1 (4.2.2.1) 56(84) bytes of data. 64 bytes from 4.2.2.1: icmp_seq=1 ttl=53 time=8.63 ms 64 bytes from 4.2.2.1: icmp_seq=2 ttl=53 time=8.62 ms 64 bytes from 4.2.2.1: icmp_seq=3 ttl=53 time=8.63 ms 64 bytes from 4.2.2.1: icmp_seq=4 ttl=53 time=8.66 ms Outbound connections of all sorts fail when postfix is running.

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  • What is the best way to create a failover cluster for my IIS website?

    - by ObligatoryMoniker
    Our eCommerce website www.tervis.com currently runs on two servers: SQL server: 2005 x 86 on Windows Server 2003 Standard x86 with a single dual core processor and 4 gb of memeory IIS server: Windows Server 2008 Web edition x64 with dual quad core hyper threaded processors and 32 gb of memory Tervis.com's revenue has steadily grown to the point where we need to have redundant servers deployed with a fail over mechanism so that we do not have any down time. Because the SQL server is so underpowered compared to the web server my thought was to purchase: 2 x SQL Server 2008 R2 web edition x64 single processor license 2 x Windows Server 2008 R2 Web Edition Licenses 1 x New Physical dual quad core 32 GB server 1 x F5 Load Balancer I need the Windows Server 2008 R2 Web Edition licenses so that I can run SQL and IIS on the same box for both of these servers. The thought is to run this as an active/passive fail over cluster that could be upgraded to an active/active cluster if we purchased the additional SQL licensing. The F5 load balancer would serve as the device that monitors the two servers and if the current active one stops responding then fails over to using the other server. To be clear this is not windows clustering but simply using a load balancer to fail over between two computers so that you now have a cluster in the general sense. Is this really the best way to accomplish what I need? Is there some way to leverage the old server 2003 SQL server to function as the devices that funnels http requests to the appropriate active server and then fails over if a problem occurs? Is there any third party clustering software that might help me accomplish this in a simpler fashion?

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