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• Unable to ping local machines by name in Windows 7

  - by aardvarkk

  I'm having a strange (and persistent!) problem with pinging local machines on my network by name. I believe my machine (Windows 7 64-bit) is the only one having this issue. This is over a wireless connection. As an example, consider a device on my network by the name of WDTVLiveHub. It's a Western Digital Live Hub (surprise!). If I go to my router's DHCP Client Table in the browser (my router is a WRT400N), I see this entry: WDTVLiveHub 192.168.1.101 Great. So I try to ping that IP address: ping 192.168.1.101 Pinging 192.168.1.101 with 32 bytes of data: Reply from 192.168.1.101: bytes=32 time=9ms TTL=64 Reply from 192.168.1.101: bytes=32 time=16ms TTL=64 Reply from 192.168.1.101: bytes=32 time=16ms TTL=64 Reply from 192.168.1.101: bytes=32 time=16ms TTL=64 Ping statistics for 192.168.1.101: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 9ms, Maximum = 16ms, Average = 14ms OK, still looking good. Now I try to ping it by name: ping WDTVLiveHub Ping request could not find host WDTVLiveHub. Please check the name and try again. From what I've read, this implies a problem with DNS servers and host name lookups. Interestingly, if I type the following: pathping 192.168.1.101 I get this output: Tracing route to WDTVLIVEHUB [192.168.1.101] over a maximum of 30 hops: 0 Scotty [192.168.1.103] 1 WDTVLIVEHUB [192.168.1.101] Computing statistics for 25 seconds... Source to Here This Node/Link Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address 0 Scotty [192.168.1.103] 1/ 100 = 1% | 1 12ms 1/ 100 = 1% 0/ 100 = 0% WDTVLIVEHUB [192.168.1.101] Trace complete. Scotty is obviously the name of my local machine. So it's able to find the name somehow when I do that approach... ipconfig /all shows the following under DNS servers: DNS Servers . . . . . . . . . . . : 192.168.1.1 ***.***.***.*** ***.***.***.*** Where the * represents the same DNS servers that show up in my router under DNS 1 and DNS 2 through the Internet. For completeness, here's the whole output of ipconfig /all: Windows IP Configuration Host Name . . . . . . . . . . . . : Scotty Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Peer-Peer IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Dell Wireless 1397 WLAN Mini-Card Physical Address. . . . . . . . . : 0C-EE-E6-D1-07-E8 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2002:d83a:31e5:1234:5592:398e:8968:43d1(Preferred) Temporary IPv6 Address. . . . . . : 2002:d83a:31e5:1234:ecce:2f79:72a5:5273(Preferred) Link-local IPv6 Address . . . . . : fe80::5592:398e:8968:43d1%26(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.103(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : September-17-12 11:05:57 PM Lease Expires . . . . . . . . . . : September-18-12 11:05:57 PM Default Gateway . . . . . . . . . : fe80::200:ff:fe00:0%26 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 537718502 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-80-3D-D7-00-26-B9-0D-08-70 DNS Servers . . . . . . . . . . . : 192.168.1.1 ***.***.***.*** ***.***.***.*** NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter VirtualBox Host-Only Network: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter Physical Address. . . . . . . . . : 08-00-27-00-98-9A DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::b48a:916b:c0f:fb29%23(Preferred) Autoconfiguration IPv4 Address. . : 169.254.251.41(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 570949671 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-80-3D-D7-00-26-B9-0D-08-70 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter Local Area Connection* 15: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{55899375-C31D-4173-A529-4427D63FD28B}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{64B8F35F-A6AB-4D6B-B1D5-DD95F57B1458}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Not sure exactly how to diagnose exactly what's going on... but the problem is really frustrating! The biggest problem is that my mapped network drives have to be done by IP, and then any time the router assigns new IP addresses to those devices, all of my network shares break again. Stinks! Would love some assistance on possible solutions. I've tried all of this netsh catalog resetting and that didn't seem to fix anything at all. Would love an explanation of what's going wrong, too, rather than blindly resetting things! Thanks!

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• Can't SSH into Linux server

  - by Charissa

  I have access to a Ubuntu Server (10.4) that I can't SSH into. From a terminal the connection times out and from putty the connection is refused. I have checked that sshd is running and listening on all interfaces, iptables has all chains empty and default is ACCEPT, additional firewall is accepting on port 22 inbound, and all outbound. I can't telnet into port 22 either. What could the problem be and how can I troubleshoot it?

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• How to detect VPN disconnection with vpnc?

  - by Abhinav

  What is the easiest way to detect that a vpnc connection on Linux/Ubuntu has disconnected? Manually, I think the way to detect is to check whether the interface (tun0) appears in /sbin/ifconfig output. Is there a better way to find out immediately, so that a script can be run to restart the connection?

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• HTTP Compression Proxy

  - by Praveen

  I'm looking for a HTTP compression proxy. Basically, I need a proxy to compress images and text to be transferred over a slow internet connection when accessing the web. To put it into a diagram CLIENT ---/fast local network/--- HTTP COMPRESSION PROXY ---/slow internet connection/--- WEB (e.g. Facebook, Wiki, Google) I will be using Squid for caching but from what i've it does not support HTTP compresion (gzip, deflate)

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• Sharing mobile broadband between two MacBooks [closed]

  - by Poita_

  Possible Duplicates: Is there a software alternative to Mac OS X built in internet sharing services? How to troubleshoot problems sharing internet connection via WiFi on Mac OS X Me and my wife both have MacBooks (one regular, one MackBook Pro). We're staying in temporary accommodation with no internet so we got one of those mobile broadband USB dongles. We only have one (dongle) and were just wondering if there was anyway we can share the internet connection between the two MacBooks. Thanks in advance.

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• internet disconnects

  - by Smokezzaj

  Internet disconnects and reconnects, computer is in a peer to peer workstation with two other computers XP o/s. Only one computer has this problem the other two don't disconnect. Computer's connect to switch no router is being used. Ipconfig shows a DHCP connection, local area connection status shows packets being sent out but packets are not being received or being received at a extremely slow rate. Tried Winstock tool, reinstalling network card driver, restored to previous date, checked ethernet cable and release/renew IP.

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• nginx proxypath https redirect fails without trailing slash

  - by Thermionix

  I'm trying to setup Nginx to forward requests to several backend services using proxy_pass. The links on the pages that lack trailing slashes do have https:// in front, but get redirected to a http request with a trailing slash - which ends in connection refused - I only want these services to be available through https. So if a link is too https://example.com/internal/errorlogs in a browser when loaded https://example.com/internal/errorlogs gives Error Code 10061: Connection refused (it redirects to http://example.com/internal/errorlogs/) If I manually append the trialing slash https://example.com/internal/errorlogs/ it loads I've tried with varied trailing forward slashes appended to the proxypath and location in proxy.conf to no effect, have also added server_name_in_redirect off; This happens on more than one app under nginx, and works in apache reverse proxy Config files; proxy.conf location /internal { proxy_pass http://localhost:8081/internal; include proxy.inc; } .... more entries .... sites-enabled/main server { listen 443; server_name example.com; server_name_in_redirect off; include proxy.conf; ssl on; } proxy.inc proxy_connect_timeout 59s; proxy_send_timeout 600; proxy_read_timeout 600; proxy_buffer_size 64k; proxy_buffers 16 32k; proxy_pass_header Set-Cookie; proxy_redirect off; proxy_hide_header Vary; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; proxy_set_header Accept-Encoding ''; proxy_ignore_headers Cache-Control Expires; proxy_set_header Referer $http_referer; proxy_set_header Host $host; proxy_set_header Cookie $http_cookie; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Server $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Ssl on; proxy_set_header X-Forwarded-Proto https; curl output -$ curl -I -k https://example.com/internal/errorlogs/ HTTP/1.1 200 OK Server: nginx/1.0.5 Date: Thu, 24 Nov 2011 23:32:07 GMT Content-Type: text/html;charset=utf-8 Connection: keep-alive Content-Length: 14327 -$ curl -I -k https://example.com/internal/errorlogs HTTP/1.1 301 Moved Permanently Server: nginx/1.0.5 Date: Thu, 24 Nov 2011 23:32:11 GMT Content-Type: text/html;charset=utf-8 Connection: keep-alive Content-Length: 127 Location: http://example.com/internal/errorlogs/

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• Cisco VPN stops Windows 7 Browsing

  - by Sharjeel Sayed

  My browsing and other 'internet' activity (dropbox,digsby etc) halts when I connect to my office VPN using Cisco Systems VPN client Version 5.0.04.0300 on my Windows 7 Ultimate.The only option left for me at this time is to use my office proxy to enable the connection back. I tried doing the ucheck "Use default gateway on remote network" solution as mentioned on a previous post Windows 7 VPN stops web browser but I don't see that option on the properties of "Cisco systems VPN adapter" connection properties. Here is the screenshot

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• SSL TurnKey Linux

  - by ralexandru

  Hi there. I have a TurnKey Mantis linux appliance and I want to make the connection secure.I've bought from GlobeHost a certificate and got the following files :sub-domain_domain_net.ca-bundle and sub-domain_domain_net.crt.I've got the Sftp connection to work.How can I install the certificate ?

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• How to scale bandwidth of a startup website?

  - by EmpireJones

  I would like to host a website using my home internet connection, with multiple computers acting as nodes of web server, db, apache cassandra clusters, and memcached clusters. When this website gets to the point where I outgrow my slow home internet connection, what is the easiest/best way to scale the internet bandwidth?

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• PHP & MySQL on Mac OS X: Access denied for GUI user

  - by Eirik Lillebo

  Hey! This question was first posted to Stack Overflow, but as it is perhaps just as much a server issue I though it might be just as well to post it here also. I have just installed and configured Apache, MySQL, PHP and phpMyAdmin on my Macbook in order to have a local development environment. But after I moved one of my projects over to the local server I get a weird MySQL error from one of my calls to mysql_query(): Access denied for user '_securityagent'@'localhost' (using password: NO) First of all, the query I'm sending to MySQL is all valid, and I've even testet it through phpMyAdmin with perfect result. Secondly, the error message only happens here while I have at least 4 other mysql connections and queries per page. This call to mysql_query() happens at the end of a really long function that handles data for newly created or modified articles. This basically what it does: Collect all the data from article form (title, content, dates, etc..) Validate collected data Connect to database Dynamically build SQL query based on validated article data Send query to database before closing the connection Pretty basic, I know. I did not recognize the username "_securityagent" so after a quick search I came across this from and article at Apple's Developer Connection talking about some random bug: Mac OS X's security infrastructure gets around this problem by running its GUI code as a special user, "_securityagent". Then I tried put a var_dump() on all variables used in the mysql_connect() call, and every time it returns the correct values (where username is not "_securityagent" of course). Thus I'm wondering if anyone has any idea why 'securityagent' is trying to connect to my database - and how I can keep this error from occurring when I call mysql_query(). Update: Here is the exact code I'm using to connect to the database. But a little explanation must follow: The connection error happens at a call to mysql_query() in function X in class_1 class_1 uses class_2 to connect to database class_2 reads a config file with the database connection variables (host, user, pass, db) class_2 connect to the database through the following function: var $SYSTEM_DB_HOST = ""; function connect_db() { // Reads the config file include('system_config.php'); if (!($SYSTEM_DB_HOST == "")) { mysql_connect($SYSTEM_DB_HOST, $SYSTEM_DB_USER, $SYSTEM_DB_PASS); @mysql_select_db($SYSTEM_DB); return true; } else { return false; } }

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• Simple way to make wired internet wireless without router

  - by Anriëtte Combrink

  Hi there Is there any device which you can plug into an Ethernet port and then have it broadcast the internet connection it receives through Ethernet wirelessly with a set password (maybe a serial number on device itself)? The problem is, I have a Wi-fi capable device, an iPhone and I want to use the wired internet connection in a hotel room, but the iPhone needs a Wi-fi signal. How can I accomplish this with a rather simplistic device. // EDIT: Can this be achieved with an Apple Airport Express?

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• Virtual Machine with Bridged Adapter to Centos not accepting ssh from host machine [migrated]

  - by javadba

  I have a bridged connection on VirtualBox from os/x 10.8.5 host to Centos 5.8 client. But I suspect this is more of a general issue than specific to the host and precise version of linux. Shown below are the networking info from the VirtualBox and from within the guest sshd is running on port 22: [root@oracle-linux ~]# ps -ef | grep sshd | grep -v grep root 3103 1 0 20:22 ? 00:00:00 /usr/sbin/sshd root 14994 3103 0 21:23 ? 00:00:00 sshd: root@pts/1 Port 22 listening: [root@oracle-linux ~]# netstat -an | grep 22 | grep tcp | grep LIST tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:2207 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:2208 0.0.0.0:* LISTEN tcp 0 0 :::22 :::* LISTEN Here are ip addresses, still on the guest os: [root@oracle-linux ~]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 08:00:27:b9:e5:79 brd ff:ff:ff:ff:ff:ff inet 10.0.15.100/24 brd 10.0.15.255 scope global eth0 inet6 fe80::a00:27ff:feb9:e579/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 08:00:27:b4:86:8a brd ff:ff:ff:ff:ff:ff inet 10.0.3.15/24 brd 10.0.3.255 scope global eth1 inet6 fe80::a00:27ff:feb4:868a/64 scope link valid_lft forever preferred_lft forever [root@oracle-linux ~]# I can ssh to the guest from the guest: root@oracle-linux ~]# ssh 10.0.3.15 The authenticity of host '10.0.3.15 (10.0.3.15)' can't be established. RSA key fingerprint is ef:08:19:72:95:4d:e5:28:af:f3:6f:54:07:84:ba:04. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '10.0.3.15' (RSA) to the list of known hosts. [email protected]'s password: Last login: Mon Oct 21 21:24:12 2013 from 10.0.15.100 But can NOT ssh from the host to the guest: 18:27:04/shared:11 $ssh [email protected] ssh: connect to host 10.0.15.100 port 22: Operation timed out lost connection Here is bridged connection infO; BTW I looked into other answers, and one of them mentioned doing service iptables stop That did not help. Adapter 2 is a NAT, shown below In case NAT is causing any issues, i shut it down and restarted networking. [root@oracle-linux ~]# /etc/init.d/network restart Shutting down interface eth0: [ OK ] Shutting down interface eth1: Still No joy.. 18:27:04/shared:11 $ssh [email protected] ssh: connect to host 10.0.15.100 port 22: Operation timed out lost connection

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• How can I run a speed test for Netflix and Hulu?

  - by Brennan Stehling

  Since the FCC rules were struck down I have noticed that Netflix and Hulu often stall on my Time Warner home connection. I've heard others are experiencing the same delays. I use Speedtest.net regularly from my computer and phone to check my connection and typically at home I get 10 to 15Mbps and occasionally higher. Currently it is around 10Mbps yet Hulu is stalling. Is there a way to specifically test my speeds for streaming Netflix and Hulu?

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• Establishing Serial Port communication through USB in Linux

  - by Prashant Singh

  I am new to Ubuntu and I need to establish a serial port communication between my PC and microcontroller MSP430G2452. On connection the USB available with the Launchpad and using lsusb. It identifies the port as: Bus 005 Device 003: ID 0451:f432 Texas Instruments, Inc. eZ430 Development Tool After establishing such a connection what I need to do? My aim is to send a byte of information in Linux.

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• Streaming Netflix through Wifi kills all other devices

  - by maleki

  I have a "Belkin N150" Router. My current setup is wired connection to my personal tv and xbox with wireless going to the Wii and Bedroom laptop. Anytime I try streaming Netflix Instant Queue on the Wii, every other device has problems. The Wii works fine but everything else's connection is destroyed. Streaming through the Xbox doesn't create any issues for other devices. What kind of issue is occurring and how can I fix it?

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• Virtual Machine with Bridged Adapter to Centos not accepting ssh from host machine

  - by javadba

  I have a bridged connection on VirtualBox from os/x 10.8.5 host to Centos 5.8 client. But I suspect this is more of a general issue than specific to the host and precise version of linux. Shown below are the networking info from the VirtualBox and from within the guest sshd is running on port 22: [root@oracle-linux ~]# ps -ef | grep sshd | grep -v grep root 3103 1 0 20:22 ? 00:00:00 /usr/sbin/sshd root 14994 3103 0 21:23 ? 00:00:00 sshd: root@pts/1 Port 22 listening: [root@oracle-linux ~]# netstat -an | grep 22 | grep tcp | grep LIST tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:2207 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:2208 0.0.0.0:* LISTEN tcp 0 0 :::22 :::* LISTEN Here are ip addresses, still on the guest os: [root@oracle-linux ~]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 08:00:27:b9:e5:79 brd ff:ff:ff:ff:ff:ff inet 10.0.15.100/24 brd 10.0.15.255 scope global eth0 inet6 fe80::a00:27ff:feb9:e579/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 08:00:27:b4:86:8a brd ff:ff:ff:ff:ff:ff inet 10.0.3.15/24 brd 10.0.3.255 scope global eth1 inet6 fe80::a00:27ff:feb4:868a/64 scope link valid_lft forever preferred_lft forever [root@oracle-linux ~]# I can ssh to the guest from the guest: root@oracle-linux ~]# ssh 10.0.3.15 The authenticity of host '10.0.3.15 (10.0.3.15)' can't be established. RSA key fingerprint is ef:08:19:72:95:4d:e5:28:af:f3:6f:54:07:84:ba:04. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '10.0.3.15' (RSA) to the list of known hosts. [email protected]'s password: Last login: Mon Oct 21 21:24:12 2013 from 10.0.15.100 But can NOT ssh from the host to the guest: 18:27:04/shared:11 $ssh [email protected] ssh: connect to host 10.0.15.100 port 22: Operation timed out lost connection Here is bridged connection infO; BTW I looked into other answers, and one of them mentioned doing service iptables stop That did not help. Adapter 2 is a NAT, shown below In case NAT is causing any issues, i shut it down and restarted networking. [root@oracle-linux ~]# /etc/init.d/network restart Shutting down interface eth0: [ OK ] Shutting down interface eth1: Still No joy.. 18:27:04/shared:11 $ssh [email protected] ssh: connect to host 10.0.15.100 port 22: Operation timed out lost connection

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• Enabling printing feature within the Terminal Server environment that is published to the internet?

  - by Albert Widjaja

  I got the home and remote office users connect to the Terminal Server on my Windows Server 2003 that I published securely through Juniper SSL VPN client applet, they use normal internet connection to access the link which pop up the Terminal Server Remote Desktop application, so my question is, how can they print out the document from within their terminal server session ? if it is going through the internal office LAN mapping the printer through Remote Desktop connection is the solution but not for this one. Any kind of help and suggestion would be greatly appreciated. Thanks

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• Problem with monitoring Glassfish with JConsole..

  - by Pavel

  I have enabled JMX connection on remote Glassfish server and then I've restarted it. During starting server notified: Standard JMX Clients (like JConsole) can connect to JMXServiceURL: [service:jmx:rmi:///jndi/rmi://myserver:8686/jmxrmi] for domain management purposes. Port 8686 is opened for connections. But I can't connect to server with JConsole.. It says: Connection failed. How can I solve this problem? Thanks in advance.

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• Privoxy-like proxy that handles multiple parallel connections?

  - by overtherainbow

  Hello I use Privoxy on my XP host to filter/rewrite web pages, but it's slower because all connections go through Privoxy's single port. According to this post on StackOverflow, by default, browsers support more than one simultaneous connection, which would explain why going through Privoxy is slower. Does someone know of a similar application that could handle more than one connection? Thank you.

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• IPcop slows the bandwith.....

  - by Kunchok

  I have IPcop 1.4.20 server running in my office. It seems that the Ipcop slows down my connection bandwith as it's upto set speed with direct connection to my pc.... Please help me out.....

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• Network Bridging for WiFi-to-Ethernet in linux

  - by shakaran

  It is possible Network Bridging for WiFi-to-Ethernet in linux instead of Ethernet-to-Ethernet? I have a CentOS 6.3 machine. I am using KVM and I want perform a brigde for virtualize more machines. This machine is connected only via wireless connection and it doesn't have a ethernet connection. So, I did a bridge over the WiFi interface like: # cat /etc/sysconfig/network-scripts/ifcfg-br0 DEVICE="br0" NM_CONTROLLED="yes" ONBOOT=yes TYPE=Bridge BOOTPROTO=none IPADDR=192.168.1.50 PREFIX=24 GATEWAY=192.168.1.1 DNS1=8.8.8.8 DNS2=8.8.4.4 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System br0" Then I edit my wireless conection like: # cat /etc/sysconfig/network-scripts/ifcfg-mywireless ESSID="mywireless" MODE=Managed KEY_MGMT=WPA-PSK WPA_ALLOW_WPA2=yes CIPHER_PAIRWISE=CCMP CIPHER_GROUP=CCMP TYPE=Wireless #BOOTPROTO=none #IPADDR=192.168.1.50 #PREFIX=24 #GATEWAY=192.168.1.1 #DNS1=8.8.8.8 #DNS2=8.8.4.4 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="Auto mywireless" UUID=874***** ONBOOT=yes LAST_CONNECT=1355923469 BRIDGE=br0 After, I restart the network: # /etc/init.d/network restart Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface Auto_mywireless: Error: Unknown connection: 874***** [FAILED] Bringing up interface br0: [ OK ] But as you can see, it show a error. My ifconfig output shows now: # ifconfig br0 Link encap:Ethernet HWaddr 6E:20:AD:CE:D8:AB inet addr:192.168.1.50 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6c20:adff:fece:d8ab/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:67 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:6393 (6.2 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:432 errors:0 dropped:0 overruns:0 frame:0 TX packets:432 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:62433 (60.9 KiB) TX bytes:62433 (60.9 KiB) ra0 Link encap:Ethernet HWaddr 00:22:F7:2B:87:E5 inet addr:192.168.1.42 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::222:f7ff:fe2b:87e5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:46 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:487894880 (465.2 MiB) TX bytes:148136473 (141.2 MiB) virbr0 Link encap:Ethernet HWaddr 52:54:00:5B:30:9A inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:70 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:5838 (5.7 KiB) But this doesn't give internet connection and I loss access to 192.168.1.50. So, it is possible setup this networking bridge WiFi-to-Ethernet?

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• Automatically run script after connected to PPTP server

  - by hvtuananh

  Hi all, I'm using PPTP connection to connect to my office And I want to add a static route after connected to PPTP server. My problem is my IP on this connection is automatic Is there any way to run a script to manually add a route to route table when connected to PPTP server? I'm using Windows XP SP3

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• Secret, unlogged, transparent, case-sensitive proxy in IIS6?

  - by Ian Boyd

  Does IIS have a secret, unlogged, transparent, case-sensitive proxy built into it? A file exists on the web-server: GET http://www.stackoverflow.com/javascript/ModifyQuoteArea.js HTTP/1.1 Accept: text/html, application/xhtml+xml, */* Accept-Language: en-US User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0) Accept-Encoding: gzip, deflate Connection: Keep-Alive Host: www.stackoverflow.com HTTP/1.1 200 OK Connection: Keep-Alive Content-Length: 29246 Date: Mon, 07 Mar 2011 14:20:07 GMT Content-Type: application/x-javascript ETag: "5a0a6178edacb1:1c51" Server: Microsoft-IIS/6.0 Last-Modified: Fri, 02 Tue 2010 17:03:32 GMT Accept-Ranges: bytes X-Powered-By: ASP.NET ... Problem is that a changes made to the file will not get served, the old (i.e. February of last year) version keeps getting served: HTTP/1.1 200 OK Connection: Keep-Alive Content-Length: 29246 Date: Mon, 07 Mar 2011 14:23:07 GMT Content-Type: application/x-javascript ETag: "5a0a6178edacb1:1c51" Server: Microsoft-IIS/6.0 Last-Modified: Fri, 02 Tue 2010 17:03:32 GMT Accept-Ranges: bytes X-Powered-By: ASP.NET ... The same old file gets served, even though we've: renamed the file deleted the file restarted IIS The request for this file does not appear in the IIS logs (e.g. C:\WINNT\System32\LogFiles\W3SVC7\) And this only happens from the outside (i.e. the internet). If you issue the request locally on the server, then you will: - get the current file (file there) - 404 (file renamed) - 404 (file deleted) But if i change the case of the requested resource, i.e.: GET http://www.stackoverflow.com/javascript/MoDiFyQuOtEArEa.js HTTP/1.1 Accept: text/html, application/xhtml+xml, */* Accept-Language: en-US User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0) Accept-Encoding: gzip, deflate Connection: Keep-Alive Host: www.stackoverflow.com Note: MoDiFyQuOtEArEa.js verses ModifyQuoteArea.js Then i do get the proper file (or get the 404 as i expect if the file is renamed or deleted). But any subsequent changes to the file will not show up until i change the case of the file i'm asking for. Checking the IIS logs all indicate that the (internet) requests are all coming the correct client on the internet (i.e. not from some intermediate proxy). Since the file doesn't exist on the hard drive anymore, i conclude that there is a proxy. The requests serviced from this proxy are not logged in the IIS logs. The requests for new files are logged, and from the client IP, not a proxy IP. The proxy is case sensitivie. This does not sound like something Microsoft, or IIS, would do: - a transparent proxy - case-sensitivie - unlogged - surviving restarts of IIS - surviving in a cache for hours i can't believe that our customer's IIS is doing these things. i'm assuming there is some other transparent proxy in front of IIS. Or, does IIS have a transparent, unlogged, case-sensitive, memory based, proxy, that caches content for at least 7 hours? (Come Monday morning, IIS is serving the correct file, unlogged).

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• Windows SBS 2003 Remote Desktop Problem

  - by david.healed

  Hi, I used to remote access the SBS 2003 server through RDC and it has been working all the time but now I am unable to connect to the server. Whenever I pressed the "Connect" button on the Remote Desktop Connection dialog, a dialog with messages like "Connecting to: xx.xx.xx.xx" and "Configuring remote session..." appeared and then disappeared quickly, leaving the Remote Desktop Connection dialog there. How to fix the problem? Thank you.

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