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• Home-Router: Access internal server using external ip [migrated]

  - by user15863

  If I've got a typical home router -- say a Net Gear -- which has certain ports forwarded to a internal server, is there a way to tweak the router to let me access that internal server using the external IP address from within the same network? Is there a non-enterprise grade router that can handle this type of thing? In case that was strangely worded, let me re-phrase with an example. My external IP is 1.2.3.4. My internal server is 10.4.3.100 Port 1178 is being forwarded from the router to 10.4.3.100. I'd like to be able to be able to hit 10.4.3.100 from an internal ip of 10.4.3.10 by using the external ip of 1.2.3.4. Possible?

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• Unable to make my bios see my sata hdd

  - by Stefan

  I know there are many question about that, but I tried everything and I'm still not able to make my bios see my sata2 hdd. I've got a QDI motherbord with no sata port; only 2 ide ports. I had an old ide hdd, now i've removed it and bought a sata2 hdd. Since my pc has no sata slots i bouth a ide-to-sata adapter. So, i don't have any os installed on the new drive, and the old drive is removed. My problem is that I'm unable to see my hdd on bios. I suppose that my bios, since it's an old version, doesn't have sata drivers, but I don't know if I must install it and also I dont know how to do it. Anyone can help me?

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• Why is Denic not accepting my nameservers?

  - by Oliver Salzburg

  I'm currently in the process of moving all of our domains to our own nameservers. Which wasn't an issue until I hit our own .de domain. I (think I) understand the implications of having the NS inside it's own domain, hence the need for glue records. Until yesterday, I would have assumed I have a pretty good understanding of Bind and DNS zones until I was presented with this error from the Denic nameserver predelegation check: Inconsistent set of nameserver IP addresses (NS, provided glues, determined glues) ns2.hartwig-at.de [88.198.242.190/88.198.242.190] Default resolver determined: [], other resolvers determined: {88.198.242.190/88.198.242.190=[/2a01:4f8:d13:3c85:0:0:0:2, /88.198.242.190]} Inconsistent set of nameserver IP addresses (NS, provided glues, determined glues) ns1.hartwig-at.de [cloud.hartwig-at.de/176.221.46.23] Default resolver determined: [], other resolvers determined: {cloud.hartwig-at.de/176.221.46.23=[/2a00:1158:3:0:0:0:0:b6, /176.221.46.23]} Screenshot of the result The support of my registrar is either far better educated than me or doesn't have a clue. Either way, they're avoiding my questions in regards to what this error means. They just tell me Your nameserver has to return your own nameservers as the default resolver. But that doesn't make any sense to me and they refuse to try to explain it any other way. This is the head of my current zone file: @ 86400 IN SOA ns1.hartwig-at.de. hostmaster.hartwig-at.de. ( 2012070505 ; serial 1d ; refresh 3h ; retry 4w ; expiry 1h ) ; minimum 3600 IN NS ns1.hartwig-at.de. 3600 IN NS ns2.hartwig-at.de. 3600 IN MX 10 remote.hartwig-at.de. 3600 IN MX 20 mx1.hartwig-at.de. 3600 IN MX 30 mx2.hartwig-at.de. localhost 3600 IN A 127.0.0.1 localhost 3600 IN AAAA ::1 @ 3600 IN A 176.221.46.23 3600 IN AAAA 2a00:1158:3::b6 * 3600 IN A 176.221.46.23 3600 IN AAAA 2a00:1158:3::b6 hetzner 3600 IN A 88.198.242.190 hetzner 3600 IN AAAA 2a01:4f8:d13:3c85::2 cloud 3600 IN A 176.221.46.23 cloud 3600 IN AAAA 2a00:1158:3::b6 ; List all NS as A/AAAA record ns 3600 IN A 176.221.46.23 ns 3600 IN AAAA 2a00:1158:3::b6 ns1 3600 IN A 176.221.46.23 ns1 3600 IN AAAA 2a00:1158:3::b6 ns2 3600 IN A 88.198.242.190 ns2 3600 IN AAAA 2a01:4f8:d13:3c85::2 So, what is the problem with my zone? And what is the "default resolver"?

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• How to Configure IIS 7.5 to Host Several Classic ASP Sites using 1 IP Address?

  - by SidC

  We are running Windows Server 2008 R2 with IIS 7.5 and have 4-5 Classic ASP sites to install. The main site is stored in wwwroot and the other sites are stored in folders below wwwroot. We have 1 IP address for the server. How do I configure IIS to allow folks to browse/test the sites before domain names are pointed to te server? When I setup one of the sites in a subfolder of wwwroot and assign a separate port to it, I receive a message stating: Config Error Cannot add duplicate collection entry of type 'add' with unique key attribute 'value' set to 'index.asp' How do I remedy this error and permit IIS to render the site?

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• NMap route determination on Windows 7 x64

  - by user30772

  C:\Windows\system32>nmap --iflist Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 06:51 Central Daylight Time ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MTU MAC eth0 (eth0) fe80::797f:b9b6:3ee0:27b8/64 ethernet down 1500 5C:AC:4C:E9:2D:46 eth0 (eth0) 169.254.39.184/4 ethernet down 1500 5C:AC:4C:E9:2D:46 eth1 (eth1) fe80::5c02:7e48:8fbe:c7c9/64 ethernet down 1500 00:FF:3F:7C:7C:2B eth1 (eth1) 169.254.199.201/4 ethernet down 1500 00:FF:3F:7C:7C:2B eth2 (eth2) fe80::74e4:1ab7:1b7d:a0d0/64 ethernet up 1500 14:FE:B5:BA:8A:C3 eth2 (eth2) 10.0.0.0.253/24 ethernet up 1500 14:FE:B5:BA:8A:C3 eth3 (eth3) fe80::b03e:ddf5:bb5c:5f76/64 ethernet up 1500 00:50:56:C0:00:01 eth3 (eth3) 169.254.95.118/16 ethernet up 1500 00:50:56:C0:00:01 eth4 (eth4) fe80::b175:831d:e60:27b/64 ethernet up 1500 00:50:56:C0:00:08 eth4 (eth4) 192.168.153.1/24 ethernet up 1500 00:50:56:C0:00:08 lo0 (lo0) ::1/128 loopback up -1 lo0 (lo0) 127.0.0.1/8 loopback up -1 tun0 (tun0) fe80::100:7f:fffe/64 point2point down 1280 tun1 (tun1) (null)/0 point2point down 1280 tun2 (tun2) fe80::5efe:a9fe:5f76/128 point2point down 1280 tun3 (tun3) (null)/0 point2point down 1280 tun4 (tun4) fe80::5efe:c0a8:9901/128 point2point down 1280 tun5 (tun5) fe80::5efe:ac14:fd/128 point2point down 1280 DEV WINDEVICE eth0 \Device\NPF_{0024872A-5A41-42DF-B484-FB3D3ED3FCE9} eth0 \Device\NPF_{0024872A-5A41-42DF-B484-FB3D3ED3FCE9} eth1 \Device\NPF_{3F7C7C2B-9AF3-45BB-B96E-2F00143CC2F7} eth1 \Device\NPF_{3F7C7C2B-9AF3-45BB-B96E-2F00143CC2F7} eth2 \Device\NPF_{08116FE5-F0FF-498A-9BF1-515528C57C13} eth2 \Device\NPF_{08116FE5-F0FF-498A-9BF1-515528C57C13} eth3 \Device\NPF_{AA83C6CE-AB2E-4764-92D1-CDEAFBA7AD21} eth3 \Device\NPF_{AA83C6CE-AB2E-4764-92D1-CDEAFBA7AD21} eth4 \Device\NPF_{D0679889-E9D4-411D-BDC5-F4DDB758E151} eth4 \Device\NPF_{D0679889-E9D4-411D-BDC5-F4DDB758E151} lo0 <none> lo0 <none> tun0 <none> tun1 <none> tun2 <none> tun3 <none> tun4 <none> tun5 <none> **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.153.255/32 eth0 255.255.255.255/32 eth0 255.255.255.255/32 eth0 127.0.0.1/32 eth0 127.255.255.255/32 eth0 255.255.255.255/32 eth0 169.254.95.118/32 eth0 169.254.255.255/32 eth0 10.0.0.0.253/32 eth0 255.255.255.255/32 eth0 10.0.0.0.255/32 eth0 255.255.255.255/32 eth0 192.168.153.1/32 eth0 255.255.255.255/32 eth0 10.0.0.0.0/24 eth0 192.168.153.0/24 eth0 10.10.10.0/24 eth0 10.0.0.0.4 169.254.0.0/16 eth0 127.0.0.0/8 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 0.0.0.0/0 eth0 10.0.0.0.1 JMeterX - I worded that way in hopes of raising answer efficnecy, but that probably wasnt the smartest choice. IMHO the problem (could be a symptom) is that nmap retardedly chooses eth0 as the gateway interface for any and all networks. Here's the result: C:\Windows\system32>nmap 10.0.0.55 Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 07:43 Central Daylight Time Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn Nmap done: 1 IP address (0 hosts up) scanned in 0.95 seconds C:\Windows\system32>nmap -e eth2 10.0.0.55 Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 07:44 Central Daylight Time Nmap scan report for esxy5.dionne.net (10.0.0.55) Host is up (0.00070s latency). Not shown: 991 filtered ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 427/tcp open svrloc 443/tcp open https 902/tcp open iss-realsecure 5988/tcp closed wbem-http 5989/tcp open wbem-https 8000/tcp open http-alt 8100/tcp open xprint-server MAC Address: 00:1F:29:59:C7:03 (Hewlett-Packard Company) Nmap done: 1 IP address (1 host up) scanned in 5.29 seconds Just to be clear, this is what makes absolutly no sense to me whatsoever. For reference, I've included similar info from an Ubuntu (that works normally) vm on the affected host below. Jacked Windows 7 **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.153.255/32 eth0 255.255.255.255/32 eth0 255.255.255.255/32 eth0 127.0.0.1/32 eth0 127.255.255.255/32 eth0 255.255.255.255/32 eth0 169.254.95.118/32 eth0 169.254.255.255/32 eth0 10.0.0.0.253/32 eth0 255.255.255.255/32 eth0 10.0.0.0.255/32 eth0 255.255.255.255/32 eth0 192.168.153.1/32 eth0 255.255.255.255/32 eth0 10.0.0.0.0/24 eth0 192.168.153.0/24 eth0 10.10.10.0/24 eth0 10.0.0.0.4 169.254.0.0/16 eth0 127.0.0.0/8 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 0.0.0.0/0 eth0 10.0.0.0.1 Working Ubuntu VM root@ubuntu:~# nmap --iflist Starting Nmap 5.21 ( http://nmap.org ) at 2012-08-31 07:44 PDT ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MAC lo (lo) 127.0.0.1/8 loopback up eth0 (eth0) 172.20.0.89/24 ethernet up 00:0C:29:0A:C9:35 eth1 (eth1) 192.168.225.128/24 ethernet up 00:0C:29:0A:C9:3F eth2 (eth2) 192.168.150.128/24 ethernet up 00:0C:29:0A:C9:49 **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.225.0/0 eth1 192.168.150.0/0 eth2 172.20.0.0/0 eth0 169.254.0.0/0 eth0 0.0.0.0/0 eth0 172.20.0.1 root@ubuntu:~# nmap esxy2 Starting Nmap 5.21 ( http://nmap.org ) at 2012-08-31 07:44 PDT Nmap scan report for esxy2 (172.20.0.52) Host is up (0.00036s latency). rDNS record for 172.20.0.52: esxy2.dionne.net Not shown: 994 filtered ports PORT STATE SERVICE 80/tcp open http 427/tcp closed svrloc 443/tcp open https 902/tcp closed iss-realsecure 8000/tcp open http-alt 8100/tcp open unknown MAC Address: 00:04:23:B1:FA:6A (Intel) Nmap done: 1 IP address (1 host up) scanned in 4.76 seconds

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• Mac Air Bootcamp Windows 7 Installation and USB3 Hurdles

  - by Casey

  I am trying to load windows 7 on a new Mac Air(OS X 10.9 Mavericks) using Boot camp, a downloaded windows 7 iso file, and USB3 flash drive. No obvious issues with stepping through the initial phases of boot camp and disc partition, but when the system reboots to load windows setup/install from the USB3 flash, it stalls after a few screens and gives a "missing cd/dvd drive" error. I have read similar posts regarding this fail that imply there is possibly a windows 7 compatibility concern with USB3, and that if a USB2 port is available....or if you can change your BIOS to make your USB3 look like USB2...then you can get around this error. Unfortunately I only have USB3 ports on this system, and it appears accessing the PC equivalent "BIOS" on the new Macs is very difficult....and if you screw it up you can ruin the system. Does anyone have any suggestions? I should also mention that there is NOT a CD/DVD drive on the Mac Air....and I can't migrate to Windows8 (for various reasons). Any help is much appreciated!!

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• Drawbacks of installing linux on usb stick?

  - by Znarkus

  I am setting up a router/nas/http/whatever server based on an ION mini-ITX board. I've installed Ubuntu Server on an old 160 GB drive, but it generates a lot more heat and vibrates more than my other new drive (storage). It just doesn't fit the concept, and worse: it takes up a SATA port. As SSD's are crazy expensive I'm thinking of buying an extra 4 GB USB stick, and raid0 it. From my point of view, these are the pros/cons: Pros Low power consumption No vibrations No heat Smaller Get to buy new, larger USB stick (:D) Cons Shorter life time Slower Raid 0 More work maintaing/installing? I think the pros overweighs the cons. Shorter life time and raid 0 is countered by regular backups of the configs/settings. Slower is partially countered by raid 0, and I don't know about the last one. What do You think? Experience? Another solution?

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• Tomcat and IIS6 on one server, multiple websites

  - by Rafe

  Windows Server 2003 with IIS6 and Tomcat 6.0.26. Three sites running on this server. One is PHP, one is ASP and the third uses Tomcat. The first two work flawlessly. The third is being a pain. Tomcat is installed and if called on the server itself by IP address xxx.xxx.xxx.xxx:8080 shows the welcome page. Calling the same address from an external machine gives a 'could not connect' error. Calling the ip address from within the server on standard port 80 gives me an error 324 (net::ERR_EMPTY_RESPONSE). Have tried using httpcfg to force listening only on ports within the ip range I'm using in a manner similar to question 35650 located here on serverfault but with no success. There are actually ten ip addresses on this machine but I'm only using three of them at this point. Any pointers on troubleshooting this would be appreciated!

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• How do I set up a shared internet on a network using computer hooked up to a router

  - by Skadlig

  I got a wireless broadband modem (Huawei E1750) hooked up to my computer (call it A., running Windows-7) whose internet I wish to share to my other computer (call it B., also running Windows-7). A. is hooked up to my d-link DIR-600 router using a wired connection to port 1 on the router. B. is connected to the router using a wireless connection. Now I have tried setting up the sharing according to the help files for ICS but I have not been able to get it working. I suspect that there is something in my hardware configuration that is making it difficult. I would appreciate some tips and pointers as to what could be the reason to my problems.

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• Accessing my Rails webrick behind proxy?

  - by Eki Eqbal

  In my mackbook, when I try to connect to my rails application in office I can't , in the office there are some http proxy , and when I run my rails like this : sudo rails s -p8080 => Booting WEBrick => Rails 3.0.5 application starting in development on http://0.0.0.0:8080 => Call with -d to detach => Ctrl-C to shutdown server [2012-03-20 12:49:34] INFO WEBrick 1.3.1 [2012-03-20 12:49:34] INFO ruby 1.8.7 (2010-01-10) [universal-darwin11.0] [2012-03-20 12:49:34] INFO WEBrick::HTTPServer#start: pid=17439 port=8080 The local IP is : en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether f8:1e:df:d8:8c:25 inet6 fe80::fa1e:dfff:fed8:8c25%en1 prefixlen 64 scopeid 0x5 inet 10.21.21.240 netmask 0xffffff00 broadcast 10.21.21.255 media: autoselect status: active so when I try in the browser to trigger localhost:8080 or 10.21.21.240:8080 , it seems that I can't trigger my application as for the proxy check out the following : Any Ideas ?

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• Why does my mail get marked as spam?

  - by schoen

  I Have the server "afspraakmanager.be". It matches everything not to be a spam server.(it isn't by the way): it has reverse dns, spf,dkim,... . But hotmail marks it as spam. I think the problem is the SPF/DKIM records. when i sent an email to my gmail it says: "Received-SPF: neutral (google.com: 2a02:348:8e:6048::1 is neither permitted nor denied by best guess record for domain of [email protected]) client-ip=2a02:348:8e:6048::1; Authentication-Results: mx.google.com; spf=neutral (google.com: 2a02:348:8e:6048::1 is neither permitted nor denied by best guess record for domain of [email protected]) [email protected]; dkim=neutral (bad format) [email protected]" So i guess my SPF and DKIM records aren't set up right. But I also don't have a clue what is wrong with them. this is the zone file: ; zone file for afspraakmanager.be $ORIGIN afspraakmanager.be. $TTL 3600 @ 86400 IN SOA ns1.eurodns.com. hostmaster.eurodns.com. ( 2013102003 ; serial 86400 ; refresh 7200 ; retry 604800 ; expire 86400 ; minimum ) @ 86400 IN NS ns1.eurodns.com. @ 86400 IN NS ns2.eurodns.com. @ 86400 IN NS ns3.eurodns.com. @ 86400 IN NS ns4.eurodns.com. ; Mail Exchanger definition @ 600 IN MX 10 smtp ; IPv4 Address definition @ IN A 37.230.96.72 afspraakmanager.be 600 IN A 37.230.96.72 localhost 86400 IN A 127.0.0.1 smtp 600 IN A 37.230.96.72 www 600 IN A 37.230.96.72 ; Text definition default._domainkey 600 IN TXT "v=DKIM1\\; k=rsa\\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC6pvlZKnbSVXg1Bf3MF2l8xRrKPmqIw2i9Rn1yZ3HEny9qH1vyGXUjdv2O0aQbd5YShSGjtg5H/GedRMLpB0Qb+hBj1yGofOQTdcVtZZfj8qBY5Z7vEkhvtdaogQ0vLjgcwhg0BBuTewEkLxrl9IIzkPMZ1SCtM2Y0RtiUhg2cjQIDAQAB" ; Sender Policy Framework definition afspraakmanager.be 600 IN SPF "v=spf1 a mx ptr +all" The DKIM signature in the header: DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=afspraakmanager.be; s=mail; t=1382361029; bh=4pDpXBY8rCbX8+MfrklZzpQxaUsa3vSPUYjcDR3KAnU=; h=Date:From:To:Subject:From; b=SoBBaAlrueD8qID8txl2SBSqnZgN2lkPCdSPI/m7/YLezIcBedkgIX1NswYiZFl6Z AmF8dES73WUaaJjItVHSrdCJK2mJ/Az+vrgNsyk+GqZZ1YPiIlH3gqRrsguhoofXUX /gqLlqsLxqxkKKd9EbSzKRHuDGlJCLm5SlL8wnL0=

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• Wall jacks to patch panel?

  - by rj454me

  OK, I'm by no means a seasoned networking pro and I had no say so in the design of our current server room which is in dire need of an extreme makeover. Basically, in our server room we have 12 wall plates with 4 RJ-45 ports on each - 48 total RJ-45 ports. From these 48 ports is a spaghetti bowl of network cables feeding our servers located in a rack - there is no patch panel currently, just straight from the wall jack to each server. What I was wondering is, is it feasible to mount a 48 port patch panel in our server rack and feed into this patch panel from the wall jacks (of course nicely routing this cable through some new cable trays)? We really don't have the funds to mount the patch panel and have it fed directly from the switches in the telcom closet which is several hundred feet away. Current: Switch (Telcom Closet) - Wall Jacks - Servers Proposed: Switch (Telcom Closet) - Wall Jacks - Patch Panel - Servers

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• TCP failure on Solaris

  - by anurag kohli

  Hi All, I recently ran into a problem where a Solaris server could not establish a TCP socket on port 2126. From a packet capture I see this (note: A is a Solaris server, B is a router): A sends SYN to B B sends SYN, ACK to A Notice A (Solaris) does not acknowledge the SYN from B. Due to the business impact of the problem, I had to reboot the server to fix the problem. That said, I want to know the next time the problem occurs, what can I do to get a root cause (ie before server reboot)? Thanks in advance.

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• Can't telnet to SQL Server

  - by Thiago

  Hi there, I have an SQL Server running on a computer, and I'm trying to access it from another computer in the same local network (potentially VPN, since it's located in a datacenter). The point is that I can't even telnet to the port in which SQL Server is listening. And yes, SQL Server is working, since I can telnet to it from my workstation. I think it's something in the host, since there's no hop between the two computers, but I don't know how to troubleshoot this. Basically I get a connection failed, when I try to telnet. What can cause such problem, since apparently there's no firewall and the server is accepting connections from other computers? Thanks in advance

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• Zabbix machine is going crazy with HD writes!

  - by gshankar

  I recently installed Zabbix on a Ubuntu box I had sitting around. It's only monitoring 2 servers but I've noticed that it's continuously smashing the HD with writes. I don't remember Zabbix being this resource heavy when I've used it in the past... Any ideas on why this is happening and what I can do about it? Running iotop gives me this: 1710 be/4 mysql 0.00 B/s 102.12 K/s 0.00 % 0.00 % mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/run/mysqld/mysqld.sock --port=3306 1723 be/4 mysql 0.00 B/s 0.00 B/s 0.00 % 0.00 % mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld I'm pretty sure it's Zabbix that's causing all that mysql activity as it's the only thing which uses mysql which is running on the box...

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• Creating self-signed SSL on IIS - Remote access problem

  - by ile

  I followed these instructions to create self-signed ssl: http://www.visualwin.com/SelfSSL/ (I opened SelfSSL and typed selfssl /T) When I access https: //localhost/ than it works, but when I try to access it remotely (i set up my router to port forward to localhost), for example https: //myip the page does not load. Also, I noticed one other thing. When I access localhost locally then I am asked to enter user/pass, but if I access remotely the I get the following warning: Under Construction The site you were trying to reach does not currently have a default page. It may be in the process of being upgraded and configured. ... I don't know if it is related with this but I hope someone know the answer. Thanks, Ile

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• USB drivers installed twice

  - by stupid-phil

  Hello, I have a problem with usb drivers on Windows 7 64bit When I start up my laptop, the mouse I have plugged into a usb port does not work. I have to open the device manager, where there are two "Standard Enhanced PCI to USB Host Controller" entries. One is marked as faulty (yellow triangle). I uninstall this. Scan for changes. Then it re-appears, but not marked as faulty. And the mouse works. I have to do this every time I reboot. A colleague has the same problem. Both DELL laptops, but different models. I've tried uninstalling all USB controllers, but after a reboot, they are all reinstalled with the faulty entry. This only started happening in the last few weeks. Any help appreciated. It's driving me nuts. Thanks Phil

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• Error "fileid changed" when accessing files over NFS

  - by Roman Prikhodchenko

  I have an nfs-kernel-server configured and running on Ubuntu 10.04 Server. /export THIRD_SERVER_IP(rw,fsid=0,insecure,no_subtree_check,async) SECOND_SERVER_IP(rw,fsid=0,insecure,no_subtree_check,async) /export/ebs THIRD_SERVER_IP(rw,fsid=0,insecure,no_subtree_check,async) SECOND_SERVER_IP(rw,nohide,insecure,no_subtree_check,async) I mounted the exported folder to the second server: mount -t nfs4 -o proto=tcp,port=2049 NFS_SERVER_IP_HERE:/ebs /ebs and it works just fine. I mounted it to the third server but I cannot access files from it. ls -l /ebs ls: reading directory /ebs: Stale NFS file handle total 0 The syslog on the third server says: kernel: [11575.483720] NFS: server NFS_SERVER_IP_HERE error: fileid changed kernel: [11575.483722] fsid 0:14: expected fileid 0x2, got 0x6e001 Some info: uname -r 2.6.32-312-ec2 uname -m i686

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• Lot of Multicast traffic on LAN

  - by Nel

  Recently the whole network at work is being hit by multicast traffic originating on the LAN itself. I did some investigating and the service which seems to be responsible is ws-discovery. I have attached a screenshot of wireshark capturing the traffic. I have tried shutting down the source machine from which it was originating, but the multicast traffic still seems to be present in the network. My network topology 2 subnets - 10.10.10.0/24 and 10.20.10.0/24. Gateway is a debian system. We have 3 switches for 3 floors. They are all unmanaged Dlink 24-port switches. Multicast blocking at switch level is out of the question. Any solutions? :(

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• Enable Server Status using Plesk 11

  - by Lars Ebert

  I am trying to get apaches server status to work with Plesk 11. But running sudo /usr/sbin/apache2ctl fullstatus results in: Forbidden You don't have permission to access /server-status on this server. __________________________________________________________________ Apache Server at localhost Port 80 'www-browser -dump http://localhost:80/server-status' failed. Maybe you need to install a package providing www-browser or you need to adjust the APACHE_LYNX variable in /etc/apache2/envvars How can I enable server status? So far I have tried to insert <Location /server-status> SetHandler server-status Order Deny,Allow Deny from all Allow from localhost </Location> into the httpd.conf, but I am not sure if it is active. I also tried adding it to /var/www/vhosts/somedomain/conf/vhost.conf but I do not know which domain I have to add this to, as fullstatus seems to query localhost directly. I guess I am a little confused by the use of vhost configuration in Plesk.

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• Exchange 2010 periodically stops responding to SMTP events with error 421 4.4.1 Connection timed out

  - by Michael Shimmins

  After some help diagnosing why Exchange 2010 Enterprise stops responding to SMTP events. I can't find a pattern to it. It doesn't appear to be an actual timeout, as the server responds immediately with the error. To reproduce it I telnet into the server on port 25 and issue a EHLO. The server immediately replies with the 421: 421 4.4.1 Connection timed out Once this starts happening I've found restarting the exchange box is the only reliable way to get it flowing again. Sometimes restarting the Transport service or the mailbox attendant service seems to fix it, but this could be coincidental as it often has no effect.

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• Websphere SSL handshake with active directory cluster

  - by ring bearer

  We have a WebSphere based application that uses Active Directory(AD) based security configurations. Under WebSphere "Global security" we have configured the active directory server and connection parameters. Active directory server is actually a cluster of four servers, say, serverdc01, serverdc02,serverdc03 and serverdc04. Each of these servers have their own root certificate with CN=serverdc01, CN=serverdc02 ..so on. So to set up SSL communication, I need to retrieve certificate of active directory and save it in WebSphere's trust store. When I retrieve certificate by putting AD server name, port and retrieve certificate I randomly get certificate of one of the serverdc01,serverdc02 ... Then I save that certificate to trust store. Question is : Do I have to save certificate from each of the serverdc01,serverdc02 ...in cluster to WebSphere's trust store? What are general strategies so that each server in the cluster does not require its own root certificate?

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• set proxy for vpn server on ubuntu server 12.4

  - by Morteza Soltanabadiyan

  I have a vpn server with HTTPS, L2TP , OPENVPN , PPTP. i want to set proxy in the server so all connection that comes from vpn clients use the proxy that i set in my server. I made a bash script file for it , but proxy not working. gsettings set org.gnome.system.proxy mode 'manual' gsettings set org.gnome.system.proxy.http enabled true gsettings set org.gnome.system.proxy.http host 'cproxy.anadolu.edu.tr' gsettings set org.gnome.system.proxy.http port 8080 gsettings set org.gnome.system.proxy.http authentication-user 'admin' gsettings set org.gnome.system.proxy.http authentication-password 'admin' gsettings set org.gnome.system.proxy use-same-proxy true export http_proxy=http://admin:[email protected]:8080 export https_proxy=http://admin:[email protected]:8080 export HTTP_PROXY=http://admin:[email protected]:8080 export HTTPS_PROXY=http://admin:[email protected]:8080 Now , i dont know what to do to make a global proxy for server and all vpn clients use it automatically.

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• Newbie one: Virtual Networks - Hyper-V - Remote Destktop - Only one phisical NIC

  - by josecortesp

  Hello everyone, I'll try to explain my situation and I'll apreciate any help: I have a phisical server (quad core, 4Gb ram, 1TB raid 10, etc) with Win Server 2008 R2 enterprise, running IIS, Printing, etc... Also, I want to set up 2 virtual Servers with 2008 R2 standart one with SQL Server and the other with Team Foundation. What i need is: Being able to access from inside the private phisical network, to Remote Desktops on each of the Virtual and the phisical Servers Had Access from the outside, using a router and port Forwarding, to the TFS server and the IIS server (one is virtualized, the other is phisical) This is it, but note that I only have one Phisical Nic. How do I configure this to work. When i set up the hyper-v role, on the wizard something like it showed up but I don't remmember what i choose, and right now, I cannot access none of the servers from remote desktop, not even from the phisical private network. Can anybody point me, what can i do? Thanks in advance (sorry 4 my english, i'm a spanish talker and my english isn't that good)

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• vnc connection from linux to windows ce

  - by JosiP

  Im having troubles while im trying to connect from linux to Windows CE, via VNC viewer. Here is what i can see on log: /usr/bin/vncviewer 10.1.1.57 VNC Viewer Free Edition 4.1.2 for X - built Apr 20 2011 12:04:25 Copyright (C) 2002-2005 RealVNC Ltd. See http://www.realvnc.com for information on VNC. Tue Jul 2 12:15:04 2013 CConn: connected to host 10.1.1.57 port 5900 CConnection: Server supports RFB protocol version 3.5 CConnection: Using RFB protocol version 3.3 TXImage: Using default colormap and visual, TrueColor, depth 24. CConn: Using pixel format depth 6 (8bpp) rgb222 CConn: Using ZRLE encoding I cannot see anything - only black screen. Restarting device does not help. Device is connected directly to machine by crossed ethernet cable, and its IP is assigned by DHCP. Any clues, ideas, what can i do to get normal view ? best regards J.

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