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• How to stop nginx on Mac OS 10.6.3

  - by Alex Kaushovik

  I've installed nginx server on my Mac from MacPorts: sudo port install nginx. Then I followed the recommendation from the port installation console and created the launchd startup item for nginx, then started the server. It works fine (after I renamed nginx.conf.example to nginx.conf and renamed mime.types.example to mime.types), but I couldn't stop it... I tried sudo nginx -s stop - this doesn't stop the server, I can still see "Welcome to nginx!" page in my browser on http://localhost, also I still see master and worker processes of nginx with ps -e | grep nginx. What is the best way to start/stop nginx on Mac? BTW, I've added "daemon off;" into nginx.conf - as recommended by various resources. Thank you.

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• How to failover to local account on a cisco switch/router if radius server fails?

  - by 3d1l

  I have the following configuration on a switch that I testing for RADIUS authentication: aaa new-model aaa authenticaton login default group radius local aaa authentication enable default group radius enable aaa authorization exec default group radius local enable secret 5 XXXXXXXXX ! username admin secret 5 XXXXXXXXX ! ip radius source-interface FastEthernet0/1 radius-server host XXX.XXX.XXX.XXX auth-port 1812 acct-port 1813 key XXXXXXXXX radius-server retransmit 3 ! line con 0 line vty 5 15 Radius authentication is working just fine but if the server is not available I can not log into the router with the ADMIN account. What's wrong there? Thanks!

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• Reverse proxy using hop and RDP

  - by Sergei

  I am trying to connect from Vista to XP using RDP via reverse proxy using putty and an intermidiate host. There are myriad articles on the internet how to do it using vnc, ssh servers, winsshd, etc, but I can't find anything that helps me in this specific case. What I have: Windows XP host behind the firewall - 'destination' linux host running ssh on the internet - 'intermediate' windows host behind the firewall - 'source' All I want to do is open reverse tunnel from destination to intermidiate and use this tunnel for connecting back from the source. That should be simple to setup, however I just cannot make it. This is what I do: On 'destination', open putty session, create tunnel to 'intermediate' using following settings: source port 3389, destination is 'source:33389', direction is local On 'source', open putty session, create tunnel to 'intermediate'using following settings: source port 33389, destination is 'destination:33389', direction is local Finally, on source, open termnal services client and connect it to localhost:33389.Unfortunately it seems like packets do go somewhere but eventually client times out. Am I totally misunderstanding the concept? Please help!

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• Eventlog entry for allowed connection in Windows Firewall

  - by Jaap

  I was seeing a lot of entries in the eventlog: The Windows Filtering Platform has permitted a connection. Application Information: Process ID: 4 Application Name: System Network Information: Direction: Inbound Source Address: 10.xxx.xxx.xxx Source Port: 80 Destination Address: 10.xxx.xxx.xxx Destination Port: 31773 Protocol: 6 Filter Information: Filter Run-Time ID: 67903 Layer Name: Receive/Accept Layer Run-Time ID: 44 We have a loadbalancer which checks every second to see if the application is still running (a health check). The logs contain large amounts of this kind of entries, which makes the Event Viewer slow and it's difficult to find the more interesting logs. How do I make sure these messages don't end up in the event logs?

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• Proxy Error 502 "Reason: Error reading from remote server" with Apache 2.2.3 (Debian) mod_proxy and Jetty 6.1.18

  - by Martin

  Apache is receiving requests at port :80 and proxying them to Jetty at port :8080 The proxy server received an invalid response from an upstream server The proxy server could not handle the request GET /. My dilemma: Everything works fine normally (fast requests, few seconds or few tens of seconds long requests are processed ok). Problems occur when request processing takes long (few minutes?). If I issue request instead directly to Jetty at port :8080 the request is processed OK. So problem is likely to sit somewhere between Apache and Jetty where I am using mod_proxy. How to solve this? I have already tried some "tricks" related to KeepAlive settings, without luck. Here is my current configuration, any suggestions? #keepalive Off ## I have tried this, does not help #SetEnv force-proxy-request-1.0 1 ## I have tried this, does not help #SetEnv proxy-nokeepalive 1 ## I have tried this, does not help #SetEnv proxy-initial-not-pooled 1 ## I have tried this, does not help KeepAlive 20 ## I have tried this, does not help KeepAliveTimeout 600 ## I have tried this, does not help ProxyTimeout 600 ## I have tried this, does not help NameVirtualHost *:80 <VirtualHost _default_:80> ServerAdmin [email protected] ServerName www.mydomain.fi ServerAlias mydomain.fi mydomain.com mydomain www.mydomain.com ProxyRequests On ProxyVia On <Proxy *> Order deny,allow Allow from all </Proxy> ProxyRequests Off ProxyPass / http://www.mydomain.fi:8080/ retry=1 acquire=3000 timeout=600 ProxyPassReverse / http://www.mydomain.fi:8080/ RewriteEngine On RewriteCond %{SERVER_NAME} !^www\.mydomain\.fi RewriteRule /(.*) http://www.mydomain.fi/$1 [redirect=301L] ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined ServerSignature On </VirtualHost> Here is also the debug log from a failing request: 74.125.43.99 - - [29/Sep/2010:20:15:40 +0300] "GET /?wicket:bookmarkablePage=newWindow:com.mydomain.view.application.reports.SaveReportPage HTTP/1.1" 502 355 "https://www.mydomain.fi/?wicket:interface=:0:2:::" "Mozilla/5.0 (Windows; U; Windows NT 6.1; fi; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10" [Wed Sep 29 20:20:40 2010] [error] [client 74.125.43.99] proxy: error reading status line from remote server www.mydomain.fi, referer: https://www.mydomain.fi/?wicket:interface=:0:2::: [Wed Sep 29 20:20:40 2010] [error] [client 74.125.43.99] proxy: Error reading from remote server returned by /, referer: https://www.mydomain.fi/?wicket:interface=:0:2:::

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• dd-wrt switch for PfSense

  - by Kmao

  I currently have eth2 on my pfsense set up, and configured as 192.168.1.1, it has dhcp setup with allocation being 192.168.1.10 - 192.168.1.245. On my dd-wrt box, i disabled the WAN, and set it to act as a port for the switch. I disabled dhcp, dnsmasq, spi firewall, Wlan0 and set a static IP for the router being 192.168.1.10 Pfsense is plugged into lan0 and pc plugged into lan1 (wan port is empty) I have followed a few different guides, but i can't seem to get my router to act as a switch. Anyone have success using DD-WRT as a switch while using pfsense as your dhcp/dns/gateway. Any advice would help :)

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• Setup IIS 7 as FTP Server that is connectable outside of my local network

  - by Usta

  I was able to setup an FTP site that I was able to access via ftp://127.0.0.1/ or my local(static) ip. To do this I followed these instructions (with the exception that I did not bind to 127.0.0.1 as suggested) http://learn.iis.net/page.aspx/301/creating-a-new-ftp-site-in-iis-7/ I have created a firewall exception for port 20 and 21, and setup port-forwarding on my wireless router. But I can only access the site via local-host, and I need to have a friend have read access to it. So how do I enable remote access to it? (I'd rather not purchase a domain-name) My setup: IIS 7.5 Windows 7 Professional Wireless Network Norton Internet Security 2012 An Internal Static IP Address

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• Having Troubles Getting My Apache Server Online(NodeJS and Apache)

  - by Jeff Armingol

  I am new here. This is my situation. I am using nodejs modules, serialport2 and socket.io, because I am trying to forward the data from my arduino hardware through serialports. In my server side script, I read the data then forward it to the client side. Now I am using Apache to serve the html page,which is the client side. I am running Nodejs on port 8000 and Apache on port 80. It is running OKAY when I view it in my browser typing localhost:80. The data is appearing and seems fine. Now when I tried to get my Apache server online using a Free DDNS provider(http://www.noip.com/) and my port80, it loaded the webpage but there are no data appearing on the page. What seems to be the problem here? Really need your expertise and advice. Thanks in advanced!

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• how do I set up a virtual host (it's not working, and I've done everything right)

  - by piratepartypumpkin

  My router redirects port 80 to port 8080. My router works fine and my domain name is routed properly. This is my virtual hosts file: NameVirtualHost *:80 <VirtualHost *:80> DocumentRoot /home/admins/lampstack-5.3.16-0/apps/wordpress ServerName example.com ServerAlias www.example.com </VirtualHost> I can access my website by entering "mywebsite.com:8080" but I cannot access it by entering "mywebsite.com" For further information, this is a part of my httpd.conf: Listen 8080 Servername localhost:8080 DocumentRoot "/home/admins/lampstack-5.3.16-0/apache2/htdocs <Directory /> Options FollowSymLinks AllowOverride None Order deny, allow deny from all </Directory> <Directory "/home/admins/lampstack-5.3.16-0/apache2/htdocs"> Options FollowSymLinks AllowOverride None Order allow, deny allow from all </Directory>

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• Can a switch consume bandwidth?

  - by aashiq

  I have a network with a router and a switch. At first my ISP's optical fiber is connected with media converter input port. Than Ethernet cable (output port of Media converter) is connected with the switch. Then an output Ethernet cable is connected with our inner Microtik router. Then this router is connected with another LAN switch. From this switch we have got every connection other switch. It is our total network structure. Our bandwidth is 2 Mbps. From the 11th of March our MRTG graph shows high all the time even when my all switch is switched off except LAN switch. That's why our line is breaking up (Voice call). How could be it possible? My all PC's bandwidth is limited but when connected PC with media converter directly then the graph shows normal. That's why I can't blame my ISP.

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• Why does a redirect from a local IP address assume localhost?

  - by Jeremy

  I am developing a web application on my desktop and it is running on port 80. I am able to access the application from my laptop connected to the LAN by entering my desktop's LAN IP address 192.168.1.8. Now, my application sends a redirect after login, but my laptop assumes the final address is localhost/login. If I manually type in the IP address and URI for any page, it shows that I am logged in, so it works as expected. So, why does the redirect assume localhost? Both of my machines are linux-based. The laptop being Chrome OS. I am running nginx which proxies non-static file requests to jetty on port 8080.

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• how can i cahe one more web site on same backend server (web server) with varnish?

  - by Kerberos

  i have one web server which is IIS that is back on varnish. there are more web sites on ISS. there are all web sites header's on IIS and all web sites publish from port 80. can i cache all web site by varnish like below code;backend cacheWebSite{.host = "192.168.0.1"; .port = "80";} sub vcl_recv {if (req.http.host == "www.example1.com") {set req.backend = CacheWebSites;} if (req.http.host == "www.example2.com") {set req.backend = CacheWebSites; } if (req.http.host == "www.example3.com") {set req.backend = CacheWebSites; }} i can't test this code. that is just senario. thank you for your help already now.

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• Concerns about a Dedicated (Windows Server 2008) + DDoS

  - by TheKillerDev

  I am have today a dedicated server with these specs: Intel Core i5 750, 2x120GB (ssd + raid), Windows Server 2008 Web, 200Mbps Network, 24 Gb DD3 And I would like to know what are the best thing I can do to prevent a DDoS Attack, since I know this will be a real threat by the importance of the files that will be archived in it. Today I have apache listening port 80 and RDC listening port 3389. But the security is beeing made only by Windows Firewall. So, any thoughts on what would be good to prevent from DDoS attacks?

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

  - by Daniel Samuels

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

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• How do I configure additional phone lines asterisk/trixbox?

  - by Matt

  I have a 4 port Digium card in there, and have 4 lines running smoothly. Now, we added ANOTHER 4 port card and have 4 more analog lines coming into the Trixbox server. It still runs the 4 fine, but what do I need to do to add the additional 4 phone numbers/lines? I want it to act exactly as before, there's nothing special about the new lines. We just need more lines so that when we have 4 out of state customers call, we can have 4 more call and not get the busy signal. Trixbox CE 2.8

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• http server connectivity puzzle

  - by jpmartins

  I have been seeing some strange connection issue in the production environment. The setup has two IBM Http Server's (IHS) and a network IP load-balancer in front of them (round-robin). One instance the system is working fine, the next requests stop arriving at the IHS. Telnet directly to port 80 of the IHS is established sucessfully, but connection to the port 80 through the IP of the load-balancer fails! The puzzle comes next, the network admins say the load-balancer is working fine. When we finally reboot the IHS servers and request start flowing... The situation happened three times the last month and no obvious pattern was found. Any debug ideas?

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• esx 4 - c7000 - cisco 3020

  - by gdavid

  I have 4 blades with esx 4 installed in a HP c7000 enclosure. They have 6 cisco 3020 for hp switches in the backend. The plan was to use 2 switches for iSCSI traffic and the other 4 for data traffic. I am having a problem trunking the switches to our existing environment. The documentation i keep finding online has commands/features that are not available on the 3020 switch. Does anyone have this setup anywhere? I am looking to do Virtual Switch Tagging (VST) so i can control the machines vlan via the port groups. The only time any configuration worked for us was when our network team placed the command switchport native vlan x this setup only allowed vlan x to pass traffic and only when the port group was in vlan 0. Ideas? thanks for any help. -GD

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• PHP does not allow https connections

  - by FunkyChicken

  Hey guys im running PHP 5.4.0 and I cannot cURL nor files_get_content() https connections. Using curl in a PHP script shows: [root@ns1]# /opt/php/bin/php -q test.php * About to connect() to www.google.com port 443 * Trying 74.125.225.210... * connected * Connected to www.google.com (74.125.225.210) port 443 * successfully set certificate verify locations: * CAfile: /etc/pki/tls/certs/ca-bundle.crt CApath: none Segmentation fault Using file_get_contents() shows: Warning: file_get_contents(): Unable to find the wrapper "https" - did you forget to enable it when you configured PHP? in /test.php OpenSSL and OpenSSL-devel are installed, and PHP is also configured with cURL support for SSL connections. See: http://i.imgur.com/ExAIf.png Any idea what might be going wrong? Further info: CentOS 5.8(64) with Nginx 1.2.4

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• Setting up wifi router as a switch for Internet Connection Sharing

  - by William C

  Can my laptop with a 3G connection share its Internet via a Wifi router (Dlink DIR-615)? I turned Internet Connection Sharing on and Windows assigned 192.168.137.1 to my laptop's LAN adapter. Do I connect my laptop to the WAN port or to the LAN port of the router? What should I set as my router's IP address? Do I turn DHCP on my router on? Do I assign 192.168.137.x as static addresses on the other computers? If not, what? Is there anything else I need to set on my router? Thank you!

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• 2wire modem to linksys router

  - by Imajica666

  I want to hook a Linksys router to my 2wire modem/router (2701HG-b) to share my Internet connection. I ran from an open port from the 2wire to the WAN port of the Linksys but it will not work. I did this before with my cable modem to a router to my Linksys router. It worked then but not now. I read I can turn the 2 wire into a modem only but I need the 2wire wireless access also. IPCONFIG /ALL sees the 2wire with IP info as well as DHCP server/gateway. Any ideas?

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• Amazon EC2 - Unable to connect to MySQL

  - by alexus

  I'm having issue connecting from one VM to another # nmap -p3306 ip-XX-XX-XX-XX.ec2.internal Starting Nmap 6.40 ( http://nmap.org ) at 2014-06-10 17:50 EDT Nmap scan report for ip-XX-XX-XX-XX.ec2.internal (XX.XX.XX.XX) Host is up (0.000033s latency). PORT STATE SERVICE 3306/tcp closed mysql Nmap done: 1 IP address (1 host up) scanned in 1.05 seconds # in my Security Group I allowed Inbound connectivity via port TCP, portrange 3306 and Source 0.0.0.0/0, so theoratically it should work, but in reality it doesn't( I'm running red hat enterprise linux 7 on both VMs. mariadb.service running fine on another VM and I am able to connect to it locally. DB's: # netstat -anp | grep 3306 tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 2324/mysqld # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # Any ideas what else I missed?

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• Tomcat "connection interrupted" with ssl

  - by Mike Thomsen

  I can access Tomcat on port 8080, but not on 8443. When I try o get there, this is the error I get in Firefox: The connection was interrupted The connection to the.fqdn.com:8443 was interrupted while the page was loading. This is my connector: <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="want" sslProtocol="TLS" keystoreFile="C:\temp\keystore.jks" keystorePass="changeit"/> I have the CA key in the jre's cacerts file. The server cert was generated using EJBCA and should be signed properly. Any suggestions on what is going on?

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• How to forward connection from one interface to another under linux

  - by Daniel

  Hi, I have linux box which has two network interface, eth0, eth1. from eth1 I can access an internal website, say under port 8080. from outside the box, I can't access that network. my question is, is there a way I set up something so from outside the box, there appears to be a web server running in port 8080 and when I connect to it, it automatically forwards to eht1 the internal site? I tried to enable ip forward and add a static route, but it doesn't work. thanks.

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• Securing a persistent reverse SSH connection for management

  - by bVector

  I am deploying demo Ubuntu 10.04 LTS servers in environments I do not control and would like to have an easy and secure way to administer these machines without having to have the destination firewall forward port 22 for SSH access. I've found a few guides to do this with reverse port (e.g. howtoforge reverse ssh tunneling guide) but I'm concerned with security of the stored ssh credentials required for the tunnel to be opened automatically. If the machine is compromised (primary concern is physical access to the machine is out of my control) how can I stop someone from using the stored credentials to poke around in the reverse ssh tunnel target machine? Is it possible to secure this setup, or would you suggest an alternate method?

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• Apache mod_proxy to another server

  - by trobrock

  I am using the proxy_balancer in Apache2 to proxy requests to a Rails application to my rails server on the port the application is running on. This is how its set up... Rails Server Mongrel running on port 8000, when accessing the url directly to http://rails_server:8000 the site loads fine Apache Server Conf file for the site: <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName myserver.com ServerAlias application.myserver.com <Proxy balancer://application_cluster> Allow from localhost BalancerMember http://ip.to.server:8000 retry=10 </Proxy> ProxyPass / balancer://application_cluster </VirtualHost> The problem I am having is going to http://rails_server:8000 works fine, but going to http://application.myserver.com Loads the right content, but is displaying all the HTML as text and not rendering it as html

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