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• How to configure my hosting provider for email when DNS redirection already in place?

  - by Johann

  First of all I apologize for my poor understanding of network and I hope I used the correct terminology for everything: I have bought a domain name with 1&1 to create an online shop, using kingeshop. I followed the steps explains here to point the domain name to kingeshop IP address and everything is working fine. Now I would also like to use my domain name to create an email account. But 1&1 seems to say they're not responsible for this now the DNS is transfered to kingeshop's. What I'm wondering is who is really "in charge" of my domain name now? 1&1 also lets me configure the MX-record but I don't have a clue what I can do with this. Could I just use an existing gmail address somehow? Thanks a lot for any help or clarity you can bring me on that matter!

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• Is computer's DRAM size not as important once we get a Solid State Drive?

  - by Jian Lin

  I am thinking of getting a Dell X11 netbook, and it can go up to 8GB of DRAM, together with a 256GB Solid State Drive. So in that case, it can handle quite a bit of Virtual PC running Linux, and Win XP, etc. But is the 8GB of RAM not so important any more. Won't 2GB or 4GB be quite good if a Solid State Hard drive is used? I think the most worried thing is that the memory is not enough and the less often used data is swapped to the pagefile on hard disk and it will become really slow, but with SDD drive, the problem is a lot less of a concerned? Is there a comparison as to, if DRAM speed is n, then SDD drive speed is how many n and hard disk speed is how many n just as a ball park comparison?

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• Port 53 UDP Outgoing flood

  - by DanSpd

  Hello I am experiencing very huge problem. I have 4 computers in network, and from each a lot of data is being sent to ISP name servers. Sometimes data is being sent a little from each computer in network, sometimes it is just a lot of data from one computer. I have antivirus (Avast) and malware scan (SpyBot) I know port 53 UDP is dns which resolves domain IP so its' needed. Also I have read that ISP name server might have been infected. So what is the best thing to do in this situation. Also sometimes internet starts to lag really because of port 53

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• Automatically allowing SSH into a machine behind a UPNP router?

  - by GJ

  Hi I have a MacBook connecting to the Internet from behind various routers from time to time (home, office, etc). All of the routers support UPNP. I need to allow a co-worker to SSH into the machine, without configuring each router each time to forward port 22 to the MacBook. Is there any way to get the MacBook to use UPNP (or some other method) to automatically configure any supporting router that it is behind to forward port 22 to itself? That would allow the co-worker to SSH into the MacBook but just knowing its external IP, which is easy.

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• Remote Desktop Connection can't connect to Windows Server 2012

  - by Guy Thomas

  Mission to Remote Desktop INTO Windows Server 2012 (standalone). Situation: Control Panel, System, Remote Settings, Remote Desktop – Allow All firewalls off Connect attempt using a known IP address (ping works ok) Connect Option as a user who has already logged on. Error message: Remote Access Cannot Connect 1) Remote access not enabled 2) Remote computer turned off 3) Remote computer not available Additional info: The Server 2012 can RDC OUT. The machines I use to connect IN are Windows 7 and Windows 8, they will RDC to other machines. I have fair experience of configuring remote desktop. Question: Is this a fault of beta software on the 2012 server, or is there a new way of getting RDC to work that I am missing?

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• Cannot access Network Shares on Windows Server 2008 running VisualSVN Server

  - by mwillmott

  I have installed VisualSVN server on Windows Server 2008. The server is part of a domain but not the domain controller, it is just a data server and now an SVN server. VisualSVN uses port 80 and can only be access from inside the network (i do i by going to the dns name of the server). However, ever since i have installed this, other computers on the network can no longer access the shared folders on the server EXCEPT the domain controller which has no problems accessing the shares. I am stumped, i am guessing it is something to do with Apache running and not using host-headers (or whatever the Apache equivalent may be) but just being bound to the servers DNS name or IP. Any suggestions?

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• help setting up an IPSEC vpn from my linux box

  - by robthewolf

  I have an office with a router and a remote server (Linux - Ubuntu 10.10). Both locations need to connect to a data supplier through a VPN. The VPN is an IPSEC gateway. I was able to configure my Linksys rv42 router to create a VPN connection successfully and now I need to do the same for Linux server. I have been messing around with this for too long. First I tried OpenVPN, but that is SSL and not IPSEC. Then I tried Shrew. I think I have the settings correct but I haven't been able to create the connection. It maybe that I have to use something else like a direct IPSEC config or something like that. If someone knows of a way to turn the following settings that I have been given below into a working IPSEC VPN connection I would be very grateful. Here are the settings I was given that must be used to connect to my supplier: Local destination network: 192.168.4.0/24 Local destination hosts: 192.168.4.100 Remote destination network: 192.167.40.0/24 Remote destination hosts: 192.168.40.27 VPN peering point: xxx.xxx.xxx.xxx Then they have given me the following details: IPSEC/ISAKMP Phase 1 Parameters: Authentication method: pre shared secret Diffie Hellman group: group 2 Encryption Algorithm: 3DES Lifetime in seconds:28800 Phase 2 parameters: IPSEC security: ESP Encryption algortims: 3DES Authentication algorithms: MD5 lifetime in seconds: 28800 pfs: disabled Here are the settings from my attempt to use shrew: n:version:2 n:network-ike-port:500 n:network-mtu-size:1380 n:client-addr-auto:0 n:network-frag-size:540 n:network-dpd-enable:1 n:network-notify-enable:1 n:client-banner-enable:1 n:client-dns-used:1 b:auth-mutual-psk:YjJzN2QzdDhyN2EyZDNpNG42ZzQ= n:phase1-dhgroup:2 n:phase1-keylen:0 n:phase1-life-secs:28800 n:phase1-life-kbytes:0 n:vendor-chkpt-enable:0 n:phase2-keylen:0 n:phase2-pfsgroup:-1 n:phase2-life-secs:28800 n:phase2-life-kbytes:0 n:policy-nailed:0 n:policy-list-auto:1 n:client-dns-auto:1 n:network-natt-port:4500 n:network-natt-rate:15 s:client-dns-addr:0.0.0.0 s:client-dns-suffix: s:network-host:xxx.xxx.xxx.xxx s:client-auto-mode:pull s:client-iface:virtual s:client-ip-addr:192.168.4.0 s:client-ip-mask:255.255.255.0 s:network-natt-mode:enable s:network-frag-mode:disable s:auth-method:mutual-psk s:ident-client-type:address s:ident-client-data:192.168.4.0 s:ident-server-type:address s:ident-server-data:192.168.40.0 s:phase1-exchange:aggressive s:phase1-cipher:3des s:phase1-hash:md5 s:phase2-transform:3des s:phase2-hmac:md5 s:ipcomp-transform:disabled Finally here is the debug output from the shrew log: 10/12/22 17:22:18 ii : ipc client process thread begin ... 10/12/22 17:22:18 < A : peer config add message 10/12/22 17:22:18 DB : peer added ( obj count = 1 ) 10/12/22 17:22:18 ii : local address 217.xxx.xxx.xxx selected for peer 10/12/22 17:22:18 DB : tunnel added ( obj count = 1 ) 10/12/22 17:22:18 < A : proposal config message 10/12/22 17:22:18 < A : proposal config message 10/12/22 17:22:18 < A : client config message 10/12/22 17:22:18 < A : local id '192.168.4.0' message 10/12/22 17:22:18 < A : remote id '192.168.40.0' message 10/12/22 17:22:18 < A : preshared key message 10/12/22 17:22:18 < A : peer tunnel enable message 10/12/22 17:22:18 DB : new phase1 ( ISAKMP initiator ) 10/12/22 17:22:18 DB : exchange type is aggressive 10/12/22 17:22:18 DB : 217.xxx.xxx.xxx:500 <- 206.xxx.xxx.xxx:500 10/12/22 17:22:18 DB : c1a8b31ac860995d:0000000000000000 10/12/22 17:22:18 DB : phase1 added ( obj count = 1 ) 10/12/22 17:22:18 : security association payload 10/12/22 17:22:18 : - proposal #1 payload 10/12/22 17:22:18 : -- transform #1 payload 10/12/22 17:22:18 : key exchange payload 10/12/22 17:22:18 : nonce payload 10/12/22 17:22:18 : identification payload 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local supports nat-t ( draft v00 ) 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local supports nat-t ( draft v01 ) 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local supports nat-t ( draft v02 ) 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local supports nat-t ( draft v03 ) 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local supports nat-t ( rfc ) 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local supports DPDv1 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local is SHREW SOFT compatible 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local is NETSCREEN compatible 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local is SIDEWINDER compatible 10/12/22 17:22:18 : vendor id payload 10/12/22 17:22:18 ii : local is CISCO UNITY compatible 10/12/22 17:22:18 = : cookies c1a8b31ac860995d:0000000000000000 10/12/22 17:22:18 = : message 00000000 10/12/22 17:22:18 - : send IKE packet 217.xxx.xxx.xxx:500 - 206.xxx.xxx.xxx:500 ( 484 bytes ) 10/12/22 17:22:18 DB : phase1 resend event scheduled ( ref count = 2 ) 10/12/22 17:22:18 ii : opened tap device tap0 10/12/22 17:22:28 - : resend 1 phase1 packet(s) 217.xxx.xxx.xxx:500 - 206.xxx.xxx.xxx:500 10/12/22 17:22:38 - : resend 1 phase1 packet(s) 217.xxx.xxx.xxx:500 - 206.xxx.xxx.xxx:500 10/12/22 17:22:48 - : resend 1 phase1 packet(s) 217.xxx.xxx.xxx:500 - 206.xxx.xxx.xxx:500 10/12/22 17:22:58 ii : resend limit exceeded for phase1 exchange 10/12/22 17:22:58 ii : phase1 removal before expire time 10/12/22 17:22:58 DB : phase1 deleted ( obj count = 0 ) 10/12/22 17:22:58 ii : closed tap device tap0 10/12/22 17:22:58 DB : tunnel stats event canceled ( ref count = 1 ) 10/12/22 17:22:58 DB : removing tunnel config references 10/12/22 17:22:58 DB : removing tunnel phase2 references 10/12/22 17:22:58 DB : removing tunnel phase1 references 10/12/22 17:22:58 DB : tunnel deleted ( obj count = 0 ) 10/12/22 17:22:58 DB : removing all peer tunnel refrences 10/12/22 17:22:58 DB : peer deleted ( obj count = 0 ) 10/12/22 17:22:58 ii : ipc client process thread exit ...

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• Installing Software from a CD onto a Netbook

  - by Jonathan Sampson

  I apologize if this question has come up before - I can't seem to find it. Tonight my wife and I purchased a small samsung netbook and have been enjoying it for a light-weight solution around the house. My wife has a game she loves to play that was installed on her last laptop, but we'd like to put it on the netbook. The problem is, there's no cd-drive on the netbook and the game must be installed from a CD. What other ways can I install software from a CD onto the netbook lacking a local cd-drive on the device itself? I would prefer to not have to create image files, and mount virtual drives, etc.

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• Reverse proxy 502 bad gateway

  - by Brian Graham

  I have setup a subdomain to proxy my plesk panel, but when saving pages I am getting 502 Bad Gateway error instead of a completion message. I am running CentOS 6. Here is my vhost.conf configuration for http://plesk.domain.tld/: RewriteEngine On RewriteCond %{SERVER_PORT} ^80$ RewriteRule $ https://plesk.domain.tld/ [R,L] Here is my vhost_ssl.conf configuration for https://plesk.domain.tld/: SSLProxyEngine On <Location /> ProxyPass https://localhost:8443/ ProxyPassReverse https://localhost:8443/ </Location> I have more than enough (and I have even checked) RAM, CPU and HDD. There are no spikes. As well, the posted information does save, it just errors when trying to show me a "This information has been saved." green/red block. Here is the relevent error from /var/log/nginx/error.log (IP/Host Filtered): 2014/05/29 02:42:41 [error] 8046#0: *402 upstream prematurely closed connection while reading response header from upstream, client: 173.238.XX.XX, server: plesk.domain.tld, request: "POST /smb/web/edit HTTP/1.1", upstream: "https://198.100.XX.XX:7081/smb/web/edit", host: "plesk.domain.tld", referrer: "https://plesk.domain.tld/smb/web/edit"

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• LUNS access issue in ESX4 Cluster server

  - by rmustafa

  HI, I've created volumes in equallogic in PS 6000 XV(having 2 member which is in 1 pool), checked & those volumes can be easily detected my ISCSI software in windows. But the problem with ESX , not able to see the assigned disk on ESX server, I can explain what I've done: 1.Created Cluster with enabled HA & DRS 2.Added 3 ESX4 HOST 3.Added VMkernel & configured in all 3 ESX4, enabled vmotion & FT on the same adapter. 4.went to iSCSI storage adapter properties, enabled iSCSI 5.Trying to discover the available storage with the controller IP on dynamic discovery, but not able to see the assigned storage Note: the same volume is accessed to windows that means there is no issue from storage , am I right ???? Note: I wanted to mount the same volume in all 3 ESX host. Please suggest .... Thanks & Regards, Rashid Mustafa

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• Apache Serving 403 Forbidden after OS X Snow Leopard Upgrade to Version 10.6.6

  - by Ian Oxley

  I've just upgraded my MacBook Pro to OS X Snow Leopard version 10.6.6 and now Apache is misbehaving: requests to http://localhost/ generate a 403 Forbidden response -- FIXED requests to any of my virtual hosts seem to generate a 200 Ok response, but contain zero bytes Some further info that might be useful: I'm using the Apache that comes bundled with OS X. I'm using PHP from http://www.entropy.ch/software/macosx/php/ (which is in /usr/local/bin) I've had look at the Apache error log and the only error seems to be the following: [notice] child pid 744 exit signal Segmentation fault (11) I'm completely stumped by this. Any help would be much appreciated. UPDATE Ok, I've managed to resolve the 403 Forbidden error thanks to http://techtrouts.com/mac-os-x-105-web-sharing-forbidden-403-on-httplocalhostusername/ I'm still having the second problem though for any request e.g. this now happens when I request http://localhost

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• SNMPD timeout yet netcat shows port as open

  - by Kirill Gordeenko

  SNMPD config (I have this config working on a different server): com2sec readonly default public group MyROGroup v1 readonly group MyROGroup v2c readonly group MyROGroup usm readonly view all included .1 80 access MyROGroup "" any noauth exact all none none syslocation <LOCATION> syscontact <CONTACT> When I check the port from remote machine: » nc -zvu xx.xx.xx.xx 161 Connection to xx.xx.xx.xx 161 port [udp/snmp] succeeded! This also works locally (I get all the right stats): snmpwalk -v 2c -c public localhost Yet when I try same command locally or remotely with external IP: Timeout: No Response from xx.xx.xx.xx IPTables are disabled on both machines. /etc/sysconfig/snmpd looks like this: OPTIONS="-Lsd -Lf /dev/null -p /var/run/snmpd.pid" -a /etc/default/snmpd is empty.

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• thought on real time web analytics

  - by Linus

  we have a few web servers and am planning to create a dashboard to show the real time stats ip address,geo-location and other custom data based on database lookups. Splunk sort of fits perfectly but wondering if there are any open source alternative . i have looked at logstash and graylog2, but to my knowledge they are more of a log analysis tools. Piwik is sort of interesting except that i cannot put any javascript on the webpages. All i have access to is apache web log. Any recommendations please..

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• Correct way of bringing network interface down in linux

  - by Karolis T.

  For example: $ ifconfig dummy0 up $ ifconfig dummy0 "192.168.1.190 netmask 255.255.255.0" Calling ifconfig with no parameters shows the interface dummy0 Link encap:Ethernet HWaddr b6:1f:f3:92:6d:20 inet addr:192.168.1.190 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::b41f:f3ff:fe92:6d20/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:15 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:1050 (1.0 KiB) How can I bring the interface down so that it doesn't show up in ifconfig ifconfig -a ifconfig dummy0 without rmmod dummy because dummy is used just for example purposes. If there is no way to do that, what "throw-away" IP could I set to it and be safe from any trouble? like $ ifconfig dummy0 down $ ifconfig dummy0 0.0.0.0

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• dd-wrt Bonjour/ netbios etc on two subnets

  - by user72182

  Hi I was wondering if any clever people out there could help me. I have a network setup with two different subnets 192.168.1.0 and 192.168.0.0 one router is connected to a VPN (via OpenVPN) the other is not. Both routers have static routes to each other and a device on one can communicate to another without issues when using IP addresses. My problem is I want to use services like Bonjour, Netbios and Apple Talk across the two networks, which currently does not work. A laptop connected on one subnet will not see a laptop connected on another. Is there anyway that you can connect the two networks together so these sort of local service will work??? I guess I have to forward the boardcast packets but I have no idea how to do this. Thanks for any help...

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• How to document linux server configuration?

  - by Margaret Thorpe

  Hi, I have about 20 linux servers which I need to document the configuration of. I do not mean the detailed configuration of services, but rather user accounts, databases, databases accounts, ip addresses, physical location, SSH port etc. etc. I know all this data is stored in config files, but I want to centralize it all. I am considering just creating a spreadsheet to record this data, but was wondering if there is something better (perhaps a small php/mysql app) which would be more structured and complete than a hacked together spreadsheet. What do you use?

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• Teredo - how to connect to host behind NAT?

  - by Signum

  All I want to achieve is to establish connection to my simple server (written in C# using TcpListener class, if it makes any difference), on my computer which is behind NAT. It has some IPv6 address (it's public IP, starting with 2001:0) on Teredo interface. However, I cannot even ping it from outside my network, for instance I'm trying to ping this address from this website http://mebsd.com/ipv6-ping-and-traceroute, result - 100% packet loss. As I understood from reading about Teredo, there is no need for some port forwarding? So where could be the problem?

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• Remotely connecting to a Hyper-V hosted VM's console.

  - by billpg

  Hi everyone. I've just managed to successfully move an aging beige box into a Hyper-V virtual machine. We used to use the beige box by walking over and sitting at the computer itself, but we can't do that so easily when its inside the Hyper-V system. Is there a way please to access the VM's console from a workstation running XP Pro? Please note that its an obscure OS running inside the VM, so installing a VNC or similar service inside the VM is not an option. Many thanks.

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• Network topology question

  - by Asbie

  We currently have three networks, X.X.163.1, X.X.93.1 and 192.168.1.1. Today's setup is like this: http://i.imgur.com/tkKWy.jpg We now have PPT VPN from internet to the X.X.163.1-network, but really need to access the files from the File Server through VPN. I am also aware that this setup is not optimal. So please, any advices on how to redesign our network? Rack servers are mostly web and db servers, with only public IP addresses.

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• Oracle Advanced Security Options is Blank

  - by mak4pi

  I just installed Oracle DB 10gR2 with Oracle Advanced Security, but cannot see the algorithms. [user@db-1] adapters Installed Oracle Net transport protocols are: IPC BEQ TCP/IP SSL RAW Installed Oracle Net naming methods are: Local Naming (tnsnames.ora) Oracle Directory Naming Oracle Host Naming Oracle Names Server Naming Installed Oracle Advanced Security options are: Where are all the algorithms for Oracle Advanced Security options please? I checked the $ORACLE_HOME/bin/adapters file and it's looking for naea256i, naemd5i, etc. in the naetab.so file, but none of these are listed in the naetab.so file. What's wrong with the naetab.so file? Thanks.

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• Internet Dropping?!

  - by stead1984

  I have a virtual DC running DNS and Routing and Remote Access, that routes ALL workstations Internet traffic out to the Internet, this works fine but noticed that the Internet drops occasionally. I've checked with our service provider (Managed Communications) and they are adamant that it's not their fault. The Internet drops seem to affect everyone. We also have a server configured to use the same Internet service on a different network over a site-to-site VPN connection which also suffers from packet drops. I've spoken to Cisco and have done many tests with Cisco and they believe the problem is down to the ISP. I'm wondering if it's a DNS issue, as the Internet service uses OpenDNS. Any ideas?

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• Redirecting to a folder

  - by RN

  Apache2 Plesk 9.x I have a website www.example.com and my blog is on www.example.com/blog I have no content on www.example.com as of now So I want all requests for example.com to be redirected to www.example.com/blog How should I do that ? Is this something I can do in Apache? I am using the GoDaddy DNS server. Not sure if it matters- but I have multiple domains hosted n the same server. And I am using Plesk to manage my virtual hosts.

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• HP ProLiant DL320e G8 v2 - USB2.0 during POST

  - by user3513346

  Initially my USB2.0 ports were working during POST (and boot). However, now they appear not to be. I first noticed this when I could not access the RBSU by pressing F9 during POST. Then found that I couldn't boot from USB either (I was able to do both of these initially). When performing the boot via iLo remote console I can access all of the setups (i.e., all of the F(X)'s) and can boot virtual media from a 'removable drive'. Keyboard works fine once the OS is booted. Not really sure what to try here. Any advice would be greatly appreciated. Thanks. Nick.

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• Disabling at application level a nic (network interface) on Windows

  - by Leandro

  How can I disable at application level a network interface? The main question is this: If I disable the nic trough wmic (win7) or devcon (XP), the "plug and play" of a wired nic doesn't work any more. For example, if the user put the cable on a disabled nic, the OS doesn't know about it. So I need to persist the enable condition but disabling the networking like a disable nic. There's some API, network configuration (routing, changing ip, changing gateway, any), .NET Framework resource (Only NetFramework 2.0) or do you can think in any workaround to do this? Suggest and ideas also will be treated as a solution. Thanks and kind regards.

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• Nginx Forward SSL for single site

  - by Will.brown

  I have a nginx server setup and it works fine for http however i would like to bypass the proxy for https connection. I want it so that when someone goes to my ip https:// ip1 (Nginx server) it bypasses ngix and forwards all traffic to https:// ip2(webserver) i do not need ngix to do this for any ssl website just one particular website. SO Client to https:// ip1 to https:/ /ip2 to https:// ip1 to client pc I just want the nginx to not intercept the connection and forward it on and on return forward the connection to client Im guessing i do this by nat mascarade buy not exactly sure how to do it and if i will need to tell nginx to ignore ssl aswell can someone help me please this has gone me stuck

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