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• Trouble opening my router to my web server [closed]

  - by justin

  Here's the story. I have a webs server created and connected to my router. The website works great when I'm connected to the router, but when I'm off the network I can't access the website. I got the IP for my router by googling "what is my ip." I have opened ports 80 to 10080 to link to the server in the router. THe firewall is off. I can ping the router. One odd thing that I don't understand. When I am in network if I access XXX.XXX.XX.XX:80 I can access the web page no problem. If I access XXX.XXX.XX.XX:81 (or any other port) I get the error "Cannot access server." Any idea what the problem could be? Could it be my ISP?

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• Gmail sends bulk messages sent by postfix to spam - spf, rDNS are set up (headers inside)

  - by snitko

  here are the headers of the blocked messages (actual domain replaced with domain.com, ip address with n.n.n.n and gmail account name with person.account): Delivered-To: [email protected] Received: by 10.216.89.137 with SMTP id c9cs247685wef; Tue, 6 Dec 2011 16:06:37 -0800 (PST) Received: by 10.224.199.134 with SMTP id es6mr14447757qab.2.1323216395590; Tue, 06 Dec 2011 16:06:35 -0800 (PST) Return-Path: <[email protected]> Received: from mail.domain.com (domain.com. [n.n.n.n]) by mx.google.com with ESMTP id b16si7471407qcv.131.2011.12.06.16.06.35; Tue, 06 Dec 2011 16:06:35 -0800 (PST) Received-SPF: pass (google.com: domain of [email protected] designates n.n.n.n as permitted sender) client-ip=n.n.n.n; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates n.n.n.n as permitted sender) [email protected] Received: by mail.domain.com (Postfix, from userid 5001) id 26ADE381E3; Tue, 6 Dec 2011 19:06:35 -0500 (EST) Received: from domain.com (domain.com [127.0.0.1]) by mail.domain.com (Postfix) with ESMTP id 0148638030 for <[email protected]>; Tue, 6 Dec 2011 19:06:31 -0500 (EST) Date: Tue, 06 Dec 2011 19:06:31 -0500 From: DomainApp <[email protected]> Reply-To: [email protected] To: [email protected] Message-ID: <[email protected]> Subject: Roman Snitko says hi Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-No-Spam: True Precedence: bulk List-Unsubscribe: [email protected] Messages go to Spam folder on various gmail accounts, so it's not a coincidence. I followed all gmail guides on sending bulk emails from here https://mail.google.com/support/bin/answer.py?hl=en&answer=81126. I also checked my ip-address here http://www.dnsblcheck.co.uk/ and it's NOT on the blacklists. Thus I have two questions: What may be the possible reason for the messages to go to Spam folder? Is there any way to contact Google and ask them what causes this? Update: I have set up openDKIM on my server, everything works, gmail message headers say that dkim=pass, which means everything is set up correctly. Messages still end up in Spam folder.

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• activesync not working with forms based authentication

  - by Chad

  I have an Exchange 2003 SP2 single backend server with an SSL cert. I was having trouble getting OMA to work so I found a MS article about making a reg hack and creating a new Exchange-OMA virtual directory. I am able to connect and access content from my mailbox by using secure mail.domainname.com/oma and using my credentials. ActiveSync was not working on a Windows mobile phone or iPhone. I found another article about using Forms Based Authenication and SSL on a single Exchange server environment and the fix was to elliminate FBA and SSL for the Exchange virtual directory. That allows ActiveSync to now work. I have very few mobile users, but they are management, so I need to make ActiveSync work but I would like to get back to using SSL. http://support.microsoft.com/kb/817379 Any ideas about this setup? Thanks.

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• Why does httpd handle requests for wrong hostnames in SSL mode?

  - by Manuel

  I have an SSL-enabled virtual host for my sites at example.com:10443 Listen 10443 <VirtualHost _default_:10443> ServerName example.com:10443 ServerAdmin [email protected] ErrorLog "/var/log/httpd/error_log" TransferLog "/var/log/httpd/access_log" SSLEngine on SSLProtocol all -SSLv2 SSLCipherSuite HIGH:MEDIUM:!aNULL:!MD5 SSLCertificateFile "/etc/ssl/private/example.com.crt" SSLCertificateKeyFile "/etc/ssl/private/example.com.key" SSLCertificateChainFile "/etc/ssl/private/sub.class1.server.ca.pem" SSLCACertificateFile "/etc/ssl/private/StartCom.pem" </VirtualHost> Browsing to https://example.com:10443/ works as expected. However, also browsing to https://subdomain.example.com:10443/ (with DNS set) shows me the same pages (after SSL certificate warning). I would have expected the directive ServerName example.com:10443 to reject all connection attempts to other server names. How can I tell the virtual host not to serve requests for URLs other than the top-level one?

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• Something very strange with network

  - by Rodnower

  Hello, I have Windows 7 and I have very strange thing with my network. Some time I was connected through wireless router and my IP was 192.168.2.103, router's IP was 192.168.2.1 and some other IP was 192.168.2.100. The last I get from page "active DHCP clients" of web interface of the router and from "wireless clients" I may to see that 192.168.2.100 not (!) belong to my MAC address. Router build by EDimax. So after that I disabled wireless function of the router and restarted it. In this time I had not ping to 192.168.2.1. Also I had not any other connection, not wireless nor cable, but (!) I still had ping to 192.168.2.100 and I not understand what this voodoo is... C:\Users\Andrey>ping 192.168.2.100 Pinging 192.168.2.100 with 32 bytes of data: Reply from 192.168.2.100: bytes=32 time<1ms TTL=128 Reply from 192.168.2.100: bytes=32 time<1ms TTL=128 Reply from 192.168.2.100: bytes=32 time<1ms TTL=128 Reply from 192.168.2.100: bytes=32 time<1ms TTL=128 Ping statistics for 192.168.2.100: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms This is what I had: C:\Users\Andrey>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : Andrey-PC Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Wireless LAN adapter Wireless Network Connection 3: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #2 Physical Address. . . . . . . . . : 06-1D-7D-40-61-EB DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Wireless LAN adapter Wireless Network Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Gigabyte GN-WS50G (mini) PCI-E WLAN Card Physical Address. . . . . . . . . : 00-1D-7D-40-61-EB DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller Physical Address. . . . . . . . . : 00-1B-24-B6-09-91 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes C:\Users\Andrey>arp -a -v Interface: 127.0.0.1 --- 0x1 Internet Address Physical Address Type 224.0.0.22 static 239.255.255.250 static Interface: 0.0.0.0 --- 0xffffffff Internet Address Physical Address Type 192.168.2.1 00-0e-2e-d2-8c-af invalid 192.168.2.255 ff-ff-ff-ff-ff-ff static 224.0.0.22 01-00-5e-00-00-16 static 224.0.0.252 01-00-5e-00-00-fc static 239.255.255.250 01-00-5e-7f-ff-fa static 255.255.255.255 ff-ff-ff-ff-ff-ff static Interface: 0.0.0.0 --- 0xffffffff Internet Address Physical Address Type 192.168.2.1 00-0e-2e-ff-f1-f6 dynamic 192.168.2.101 00-27-19-bc-8b-9c dynamic 192.168.2.102 00-16-e6-6c-ae-d4 dynamic 192.168.2.255 ff-ff-ff-ff-ff-ff static 224.0.0.22 01-00-5e-00-00-16 static 224.0.0.252 01-00-5e-00-00-fc static 239.255.255.250 01-00-5e-7f-ff-fa static 255.255.255.255 ff-ff-ff-ff-ff-ff static Interface: 0.0.0.0 --- 0xffffffff Internet Address Physical Address Type 224.0.0.22 01-00-5e-00-00-16 static 255.255.255.255 ff-ff-ff-ff-ff-ff static C:\Users\Andrey>route print =========================================================================== Interface List 14...06 1d 7d 40 61 eb ......Microsoft Virtual WiFi Miniport Adapter #2 13...00 1d 7d 40 61 eb ......Gigabyte GN-WS50G (mini) PCI-E WLAN Card 11...00 1b 24 b6 09 91 ......Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller 1...........................Software Loopback Interface 1 =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 =========================================================================== Persistent Routes: None IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 1 306 ::1/128 On-link 1 306 ff00::/8 On-link =========================================================================== Persistent Routes: None Only after reboot I lost ping to there: C:\Users\Andrey>ping 192.168.2.100 Pinging 192.168.2.100 with 32 bytes of data: PING: transmit failed. General failure. PING: transmit failed. General failure. PING: transmit failed. General failure. PING: transmit failed. General failure. Ping statistics for 192.168.2.100: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), So what this mysterious cache is? Thank you for ahead.

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• Multiple IPs on Juniper SRX100 Untrust Port

  - by Will

  I am having trouble getting multiple IP addresses on the untrust port. I have tried a few different methods, but can't seem to get it to work. Does anyone have a good tutorial that is not easily found or if possible can type up the steps? I don't mind trying to do it through ssh, but would prefer web interface. Thank you ++++++++++++ Feb 1 fe-0/0/0 { unit 0 { family inet { dhcp { update-server; } } } } routing-options { static { route 0.0.0.0/0 next-hop 96.11.173.81; } } Right now it's setup to receive settings from 'cable modem' through dhcp, but I think it's only getting one IP.

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• Process for configuring network settings on a headless rack mount device

  - by PherricOxide

  I'm with a small company that plans to sell a rack mounted network appliance which is configurable via a web interface (think of a router configuration page sort of deal), and I'm wondering in large data center like environments what the process usually is for the initial setup of such systems. The main question is, if the system is headless, how do you get initial remote access to it? Do companies usually first plug a server into a monitor/keyboard/mouse in order to configure the network settings before mounting it in a rack? How else would they know what the IP address of the machine was if DHCP (and it can't be hard coded because of IP conflict potential)?

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• Shoutcast admin panel not showing most of information

  - by REALFREE

  I recently start audio streaming broadcast through third party - they provide server to broadcast audio. But when I accessed Shoutcast admin panel on the server, there's not much information I can use, for example, what if I want to ban a particular ip address. Here's screen shot- And none of options did work (listeners, tail logfile, view logfile, reverse ip list.. ) does it mean that provider blocks all features on shoutcast admin panel by default? or something else.. I'd appreciate any advice. Thanks

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• FTP could not connect after applying local DNS(private DNS)

  - by Rahul

  I made a software router in CentOS linux and in that made a DNS server. I am using centOS 6..4 for making DNS i applied following steps: changed the host name = abc.zoom.com and domain name = zoom.com. then did changes in the named.rfc.1912 file as per rename named.localhost = forward and named.loopback = reverse in forward lookups i changed zone "zoom.com" IN { type master; file "forward"; allow-update { none; }; and in reverse lookups i changed zone "x.168.192.in-addr.arpa" IN { type master; file "reverse"; allow-update { none; }; and then did changes in the named.conf file options { listen-on port 53 {192.168.x.x;}; listen-on-v6 port 53 { ::1; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; memstatistics-file "/var/named/data/named_mem_stats.txt"; allow-query {any;}; recursion yes; 192.168.x.x is my local DNS address. then i copied lookups file in /var/named and edited the file "forward" $TTL 1D @ IN SOA abc.zoom.com. rahul.abc.zoom.com. ( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS abc.zoom.com. abc A 192.168.x.x and for " reverse" $TTL 1D @ IN SOA abc.zoom.com. rahul.abc.zoom.com.( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS abc.zoom.com. x PTR abc.zoom.com. when i put the public ip details in the Eth0 it was automatically redirect in to the resolve.conf when i checked through dig command the answer, query all were 1. my system is itself a Software router.In gateway of my all local machine i give my system ip address. however my DNS and Gateway IP is same. Now the problem is that. i gave the static ips to all my local machines when i give the DNS which i made i.e 192.168.x.x that time my ftp is not connect in filezilla software E.g: host : pqr.zoom.com ("zoom.com" is my local domain name) username : pqr password : pqr gives an error: Error: Connection timed out Error: Could not connect to server but if i give the public DNS address it get connected. i want to solve this problem please give solution on this.

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• Why is my router assigning the wrong address via DHCP

  - by Barry

  I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via wireless, my wife's notebook, and our printer. However, whenever I attach my macbook to the router via an ethernet cable, the address it is given via DHCP is wrong. My local network is set up as 192.168.1.*. However, when my macbook connects with an ethernet cable, it is given the IP 192.168.29.*. Currently, I have the macbook set up with a manual IP address, and all seems to be working fine. Any ideas on what could be causing this?

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• Can't connect disk management to remote XP PC from local Win7/Server 2008

  - by Grez

  Scenario as follows: support technicians using Windows 7 PC's or Server 2008 terminal server are unable to connect Disk Management MMC snap in to a remote PC when the remote device is running Windows XP. "Disk management could not start Virtual Disk Service (VDS) on ". This can happen if the remote computer does not support VDS, or if a connection cannot be established because it was blocked by Windows Firewall." Connecting from another XP machine or 2003 server to the same XP machines works fine. Even connecting from XP/2003 to the Win7 or 2008 server works fine. Windows firewall disabled on all devices. I'm guessing this is something to do with the fact that XP uses logical disk manager service whereas Win7/2008 use Virtual disk manager service. But there doesn't seem to be any way to use logical disk manager service from 7/2008 to connect to XP...

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• How to configure DNS so that www.example.com goes to one server, *.example.com to another

  - by fishwebby

  I'm trying to set up my domain as follows, but I'm not actually sure if it's possible. I have a domain where I would like the base and www addresses to go to my static site, but others to go to my application server. For example: My domain is registered with Dreamhost, and my application is on a VPS at Webbynode. I've set up the domain in Dreamhost to use Webbynode's nameservers: ns1.dnswebby.com ns2.dnswebby.com ns3.dnswebby.com And in Webbynode I've set up a wildcard A record to point to the IP address of my VPS: * 1.2.3.4 A and this works nicely, if I go to app.example.com it resolves to my application server at Webbynode. However, what I'd like to do is have example.com and www.example.com go to my static site, hosted back at Dreamhost, whilst still having any other domain go to my app. What I've done to try and achieve this is set up these DNS "NS" entries at Webbynode, trying to get Dreamhost to resolve these domain names: (empty) ns1.dreamhost.com NS (empty) ns2.dreamhost.com NS (empty) ns3.dreamhost.com NS www ns1.dreamhost.com NS www ns2.dreamhost.com NS www ns3.dreamhost.com NS (I don't have a fixed IP address at Dreamhost so I can't just set up simple A records). However this doesn't work... does anyone have any idea if this is possible and if so how it could be done? Update: I've got this working now, as above for the domain (i.e. registered with Dreamhost, but using Webbynode's nameservers). To delegate the DNS for www.example.com to Dreamhost, I've got the following DNS entries set up: www.example.com. ns1.dreamhost.com. NS www.example.com. ns2.dreamhost.com. NS www.example.com. ns3.dreamhost.com. NS (note the full stops at the end) And to get example.com to resolve to my static site, I set up CNAME record: example.com. www.example.com. CNAME So now, example.com and www.example.com go to my static site on Dreamhost, and if they change the IP address of my shared hosting it won't affect me, and all other subdomains go to my application server. This seems to work nicely, but if anyone knows a better way to do it I'd be happy to hear it. Thanks to all who replied.

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• IPvsadm not equally balancing on wlc scheduler

  - by davidsmalley

  For some reason, ipvsadm does not seem to be equally balancing the connections between my real servers when using the wlc or lc schedulers. One real server gets absolutely hammered with requests while the others receive relatively few connections. My ldirectord.cf file looks like this: quiescent = yes autoreload = yes checktimeout = 10 checkinterval = 10 # *.site.com http virtual = 111.111.111.111:http real = 10.10.10.1:http ipip 10 real = 10.10.10.2:http ipip 10 real = 10.10.10.3:http ipip 10 real = 10.10.10.4:http ipip 10 real = 10.10.10.5:http ipip 10 scheduler = lc protocol = tcp service = http checktype = negotiate request = "/lb" receive = "Up and running" virtualhost = "site.com" fallback = 127.0.0.1:http The weird thing that I think may be causing the problem (but I'm really not sure) is that ipvsadm doesn't seem to be tracking active connections properly, they all appear as inactive connections IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 111.111.111.111:http lc -> 10.10.10.1:http Tunnel 10 0 10 -> 10.10.10.2:http Tunnel 10 0 18 -> 10.10.10.3:http Tunnel 10 0 3 -> 10.10.10.4:http Tunnel 10 0 10 -> 10.10.10.5:http Tunnel 10 0 5 If I do ipvsadm -Lnc then I see lots of connections but only ever in ESTABLISHED & FIN_WAIT states. I was using ldirectord previously on a Gentoo based load balancer and the activeconn used to be accurate, since moving to Ubuntu 10.4 LTS something seems to be different. # ipvsadm -v ipvsadm v1.25 2008/5/15 (compiled with popt and IPVS v1.2.1) So, is ipvsadm not tracking active connections properly and thus making load balancing work incorrectly and if so, how do I get it to work properly again? Edit: It gets weirder, if I cat /proc/net/ip_vs then it looks like the correct activeconns are there IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP B86A9732:0050 rr -> 0AB42453:0050 Tunnel 10 1 24 -> 0AB4321D:0050 Tunnel 10 0 23 -> 0AB426B2:0050 Tunnel 10 2 25 -> 0AB4244C:0050 Tunnel 10 2 22 -> 0AB42024:0050 Tunnel 10 2 23

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• Can no longer deploy to Amazon AWS using VS 2010

  - by KevinDeus

  Did something change on Amazon recently? I'm trying to redeploy to my Amazon instance, and the "Publish to Amazon Cloudformation" plugin for VS 2010 no longer appears to update my instance. It tells me that upload is successful, but my instance does not appear to be updating on Amazon I've tried disabling all my instances and using the tool to create a new instance , but no luck. I do see that the URL of the deployed application (which looks like this: http://c2-107-20-11-27.compute-1.amazonaws.com) does not appear to match up with the public IP of my instance on Amazon. (even when it creates a new one) This seems to indicate that something might be broken. any clues? (btw, whenever the Amazon VS2010 Plugin creates a new instance, I am sure to reconnect my elastic IP with the new instance)

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• Best practices for mass email platform

  - by Niro

  I am in the process of setting up mass email service. My question is: what are the best practices to achieve maximum deliver-ability. More precisely - what should I do/know to prevent spam filters from blocking the emails (the emails are not spam). for example- how can I tell if my IP address is blacklisted somewhere and how can I prevent it from becoming blacklisted. Is amazon web services a suitable platform due to dynamic IP addresses, what are the restrictions on the from address, can it be different from the mail server domain.... you get it....

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• SQL 2008 Reporting Services Report Manager blank on Win 7

  - by Daniel Root

  I have installed SQL Server 2008 Reporting Services on my development laptop running windows 7. When I browse to the report manager, only the header is shown. The content pane is blank, and there is no 'Site Settings' option, New Folder options, etc. I found plenty of similar stories about SQL 2005, and then the fix was to manage permissions in the virtual directory in IIS. However, in 2008, there is no virtual directory - RS manages this outside of IIS. Per other serverfault articles, I've tried the following: adding my account to the reporting services group changing the service to run as local system made sure localhost was trusted site in IE ran IE as admin installed SQL Server 2008 SP1 There are no errors in the event viewer. Perhaps related, if I browse to the webservice, I also get the error: The permissions granted to user 'Computer\User' are insufficient for performing this operation. (rsAccessDenied)

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• Website requests not reaching IIS?

  - by pete the pagan-gerbil

  To start off with a confession, I am not a server admin - just a developer tasked with getting to the root of a problem. Please be gentle! I have an intranet ASP.NET website running in IIS on a virtual machine. The website is not accessed very often (the last IIS log file was modified nearly six months ago). Both the IP address and Host header value are now failing to return the website, and the IIS log still doesn't show any more recent activity. The virtual machine was moved to a different physical location a few months ago, and the IP address for it has changed. Could this be what has broken access to the site? What else should I be checking to solve this? I don't have totally unrestricted access to the building's network settings, structures, etc. I would be grateful for any advice, even if I can't use it myself it'll improve my knowledge of what's going on behind the scenes!

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• How to setup a simple self-hosted dynamic DNS server

  - by Cerin

  I have a small internal network of physical machines running hypervisors, which in turn run several KVM Ubuntu virtual machines. How would I setup an internal dynamic DNS server so that when I run a script to create a new virtual machine, that VM could automatically register itself in the DNS server? Bind seems to be the standard DNS server for Linux, but it seems designed for a much more "static" DNS model. Dynamically updating this would require a complicated script that would have to SSH into the DNS server, edit configuration files, and then restart the server. This doesn't seem like a very elegant solution. Are there better options? I saw a similar question, although they're asking for a solution for a public setting on Amazon. My servers are entirely private, and I don't want to rely on an external VM host or Dynamic DNS provider.

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• WinXP - Having trouble sharing internet with 3G USB modem via ICS

  - by Carlos Nunez

  all! I've been banging my head against a wall with this issue for a few days now and am hoping someone can help out. I recently signed up for T-Mobile's webConnect 3G/4G service to replace the faltering (and slow) DSL connection in my apartment. The goal was to put the SIM in one of my old phones and use its built-in WLAN tethering feature to share Internet out to rest of my computers. I quickly found out that webConnect-provisioned SIMs do not work with regular smartphones, so I was forced to either buy a 4G-compatible router or tether one of my old laptops to my wireless router and share out that way. I chose the latter, and it's sharpening my inner masochistic self by the day. Here's the setup: GSM USB modem (via hub), ICS host - 10/100 Mbps Ethernet NIC, ICS "guest" - WAN port of my SMC WGBR14N wireless router in bridged mode (i.e. wireless access point). Ideally, this would make my laptop the DHCP server and internet gateway with the WAP giving everyone wireless coverage. I can browse internet on the host laptop fine. However, when clients try to connect, they get a DHCP-assigned IP from the laptop and are able to use the Internet for a few minutes before completely dying. After that happens, they are able to re-associate with the WAP and get IP addresses, but are unable to use Internet or resolve IP addresses until the laptop and router are restarted. If they do get access, it's very, very slow. After running Wireshark on the host machine, it turns out that this is because every TCP connection keeps getting RST. DNS seems to work. I would normally think the firewall is the culprit here, but when it drops packets, it drops them completely. The fact that TCP connections are being ACK'ed by the destination rules that out. Of course, none of the event Log isn't saying anything about what's going on. I also tried disabling power management on the NIC, since that's caused problems in the past; that didn't help either. I finally disabled receive-side scaling as per a Microsoft KB (that applied to Windows Server 2003, SP2) to no avail. I'm thinking of trying it with a different NIC (will be tough; don't have a spare Ethernet NIC around for the laptop), but I'm getting the impression that this simply doesn't work. Can anyone please advise? I apologise for the length of this post; all contributions are much appreciated! -Carlos.

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• Convert from port numbers to protocol names in wireshark

  - by Berkay

  i'm simply using tshark -r botnet.pcap -T fields -E separator=';' -e ip.src -e tcp.srcport -e ip.dst -e tcp.dstport '(tcp.flags.syn == 1 and tcp.flags.ack == 0)' to see the all initiated "legal TCP" connections. However, i need the destination port number conversion to "http" "netbios" etc. i'm not using -n option, but still i get: 128.3.45.128;62259;208.233.189.150;80 This is what i'm trying to get: 128.3.45.128;62259;208.233.189.150;http or 128.3.45.128;62259;208.233.189.150;80;http is better option for me. any idea from tshark users? or any other tool suggestions?

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• HowTo access Samba Share over VPN Tunnel?

  - by Jeff

  I don't know how to access a Samba share running on a Ubuntu 10.04 server through OpenVPN 2.1.0. I've installed & configured OpenVPN and everything works. The server end of the tunnel has the IP of 10.8.0.1. When I connect from XP (over our local network) I'm given the IP of 10.8.0.6. I can ping and trace route from both ends of the tunnel. Now, I'm lost...how to access the Samba share from XP and from OS X?

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• forwarding port 3306 on macosx in order to connect to a remote mysql db

  - by Jonathan Mayhak

  I'm on macosx 10.6.2 trying to connect to ubuntu server 8.04.1 at linode. ssh -L 127.0.0.1:3306:[[remote ip]]:3306 user@server -N I want to set up ssh tunneling so that I can access a remote mysql server. First of all, I'm told bind: Address already in use. This is only after I've tried the command before. How do I manually close a port forwarding session? Second, when I change the command to be ssh -L 127.0.0.1:3310:[[remote ip]]:3306 user@server -N (I changed the local port to listen on). I'm told channel 1: open failed: connect failed: Connection refused when I try to connect to the mysql server via mysql workbench or sequel pro. To connect through mysql workbench I use the following settings: host: 127.0.0.1 port: 3310 (if 3306 is in use) username: mysql username password: mysql password database: I don't put anything in

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• Getting rid of Plesk on a VPS

  - by TomA

  I've been using a relatively expensive VPS for hosting about 30 domains and I want to migrate to a cheaper one, without Plesk. Both use CentOS. My users will not care, they don't use Plesk anyway. But I will not be able to use it for creating new virtual hosts, FTP accounts etc. I'm not a commandline guru, esp. not in a server environment. Is there a free Plesk alternative for these purposes? I need to: Create a new virtual host with it's own FTP account Setup some basic FTP quota I don't need: DNS management (the new VPS service has an external DNS management GUI) Mail server management (I use Google Apps) Any suggestions welcome, from Plesk alternatives to "RTFM" or links to tutorials.

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• Firewall software that can block access to certain applications on certain internet connections

  - by webmasters

  I have two internet connections, a LAN and a 3G modem on a Windows 7 machine. The LAN is connected to a Edimax router which is conneted to the ISP (with their own modem). Now, the Edimax router is set to auto assign IP adresses in the range: 168.192.2.100 and 192.168.2.200 I wanted to block internet explorer to access the LAN. I entered my AVG firewall, selected iexplorer and added a "block" rule which blocked all ports, TCP and UDP protocols for the above IP range. The problem is it did not work, not matter what rules I have tried. Can you recommend a firewall that can easily accomplish this? Ty

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• Web Deploy to IIS7 fails with 401 (Unauthorized)

  - by Trex

  we have IIS7 running on Windows Web Server 2008 R2 and it's set up to support Web Deploy. It worked fine when we used the default Administrator account. We recently disabled this account (for security reasons) and are now trying to deploy using another account which is member of the Administrators group, but the deploy fails with 401 (Unauthorized). More specifically, it says: Connected to '<IP>' using Web Deployment Agent Service, but could not authorize. Make sure you are an admin on '<IP>'. The remote server returned an error: (401) Unauthorized. Anybody has any ideas why this is happening? Thanks. Trex

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