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• Yahoo flagging mail as spam when using relay server

  - by modulaaron

  I'm using Postfix to relay mail from my site to my mail server. Mail is received properly at my Gmail and Hotmail accounts - only Yahoo is the problem. The Yahoo mail headers state: Received-SPF: none (mta1133.mail.mud.yahoo.com: domain of [email protected] does not designate permitted sender hosts) In contrast, the Gmail headers state: Received-SPF: pass (google.com: domain of [email protected] designates 74.50.xxx.xxx as permitted sender) client-ip=74.50.xxx.xxx; Reverse DNS is set up correctly, as is my SPF record and domainkeys/dkim (both domainkeys and dkim show pass(ok) in the Yahoo mail headers). Does anyone have any suggestions as to what I can do to solve the Yahoo problem (short of contacting Yahoo, as this is a brand new mail server)? Thanks

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• Cisco PIX 515 internet connection

  - by Steve

  We have a ASDL modem connected to a Cisco PIX 515 to a switch. We have managed to get the PIX setup with ethernet1 (inside) with our IP range 192.168.5.1-192.168.5.254 and the internal network is working fine. We are having difficulty getting a connection from the PIX through the router on ethernet0 (outside). We have managed to ping external networks by setting up IMCP echo/echo-reply but are unable to setup any other protocols in a similar manner. Can any one help with a few lines that could be typed into the console that will allow this connection?

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• Unable to access VLAN host from VLAN interface in CentOS

  - by Amrit

  I am playing with VLAN (Virtual LAN) configuration on CentOS 6.4. I have 2 interfaces, eth0 and eth1. I have configured 2 VLAN interfaces eth0.20 and eth0.30 as #file: ifcfg-eth0.20 #------------- VLAN=yes DEVICE=eth0.20 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=static IPADDR=192.168.20.1 GATEWAY=192.168.20.1 NETMASK=255.255.255.0 USERCTL=no #file: ifcfg-eth0.30 #------------- VLAN=yes DEVICE=eth0.30 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=static IPADDR=192.168.30.1 GATEWAY=192.168.30.1 NETMASK=255.255.255.0 USERCTL=no Then connected a desktop to interface eth0 port using LAN cable and assigned 192.168.30.2/24 IP. When I try to ping 192.168.30.1 from 192.168.30.2 machine, It shows destination host unreachable. I am also not able to ping 192.168.130.2 from 192.168.30.1. However ping -I eth0 192.168.30.2 works fine. Any pointers?

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• Setting up dynamic DNS for linked router

  - by cherrun

  I have a 'main' router that receives the internet signal from the ISP and another one in my room, connected with a cable. The main router is running its original firmware and is very limited in its features, unfortunately I can not change this router, since my phone company has some hardcoded stuff in there and the internet will only work with this router. My second router is running DD-WRT firmware. Now I need to set up dynamic DNS, so I can access my NAS machine remotely, which is connected to the second router. As mentioned, this can't be done with the main router, due to its limited features. DHCP is turned off on the second router, since it gets its IP from the main one. Is there a possibility to set up dynamic DNS on the second router, without changing any (or much) on the main router? Maybe as a side note: I live in Germany, don't know if the set up of the routers are different in other countries.

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• Setting up dynamic DNS for linked router

  - by cherrun

  I have a 'main' router that receives the internet signal from the ISP and another one in my room, connected with a cable. The main router is running its original firmware and is very limited in its features, unfortunately I can not change this router, since my phone company has some hardcoded stuff in there and the internet will only work with this router. My second router is running DD-WRT firmware. Now I need to set up dynamic DNS, so I can access my NAS machine remotely, which is connected to the second router. As mentioned, this can't be done with the main router, due to its limited features. DHCP is turned off on the second router, since it gets its IP from the main one. Is there a possibility to set up dynamic DNS on the second router, without changing any (or much) on the main router? Maybe as a side note: I live in Germany, don't know if the set up of the routers are different in other countries.

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• Set up nameserver with multiple domains

  - by Saif Bechan

  Hello, i have a dedicated with a primary ip and domain name. I added nameserver settings for this domain, and mx records. n1.mydomain.com ns2.mydomain.com etc. Now i want to add more domain with websites to my server. Now what is the best way to do this. Should i add the domain, and use the mydomain.com nameserver settings. Shoudl i add the domain and create his own nameserver. I should add the websites have to be optimized for best performance, fastest load time. Thank you for your time

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• Problem with shared ssh keys

  - by warren

  Following the process I've used in other environments (http://www.trilug.org/pipermail/trilug/Week-of-Mon-20080602/054712.html), I've tried setting-up shared keys between my Mac and my CentOS 4 webserver. I've seen the same problem with my older Ubuntu 7.10 workstation trying to connect via keys to the same webserver. I have tried both dsa and rsa keytypes (sshkeygen -t <type>). The sshd_config file on my webserver seems to be allowing key-based logins: RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile .ssh/authorized_keys And my .ssh/authorized_keys has my dsa and rsa keys added. Where should I be looking for what to change next to make key-based logins "Just Work™"? Is it related to the line #UseDNS yes and sshd is trying to do a reverse-lookup on my IP, but cannot because it's NAT'd?

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• Can't resolve localhost on Mac OS X Server

  - by iainbeeston

  I have a server running OS X Server 10.5 and it can't resolve localhost to 127.0.0.1. When I try ping this is what happens: ping localhost ping: cannot resolve localhost: Unknown host SSH and web browsers get similar results (uknown host). If I try using 127.0.0.1 or the ip address assigned on the LAN all of the above work. Here's the contents of my /etc/hosts file: cat /etc/hosts ## # Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost I have no local DNS service running. Does anyone have any idea why this might be happening or how I can fix it?

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• Linux DNS Multi tenant

  - by spicyramen

  I need to setup a multi-tenant DNS solution in Linux DNS Server. Currently I serve multiple companies: Company ABC, Company XYZ, etc... I need to create a) Forwarder zone b) Reverse Forward Zone. I can easily create a Forward Zone with domain abc.com The challenge I have is that each of my customer components share the same IP address. Hence If I create the Reverse Forward Zone I end up with something like this: abc.com 1.1.1.1 host.abc.com xyz.com 1.1.1.1 host.xyz.com If I perform a reverse lookup on host.abc.com it works fine...but if I do a reverse lookup on 1.1.1.1 I get a load balance response of: attempt: host.abc.com attempt: host.xyz.com attempt: host.abc.com Any ideas? I want to add logic to the DNS configuration to handle DNS reverse lookup based on source machine and respond with right hostname. Workaround: Create multiple DNS but this is not scalable.

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• Adding Facebook IPv6 to Centos, getting CurlException 7

  - by Nick

  I'm correctly get following error. After searching about this issue, correct me if i'm wrong, I believe that adding/configuring IPv6 should solve the problem. PHP Fatal error: Uncaught CurlException: 7: Failed to connect to 2a03:2880:10:8f02:face:b00c:0:26: Network is unreachable\n thrown in /var/www/vhosts/facedex.net/httpdocs/fb/apps/seemyfuture/src/base_facebook.php on line 886 The problem is I dont know the right way to add it. There seems to have may methods. http://tldp.org/HOWTO/Linux+IPv6-HOWTO/x1035.html#AEN1044 http://unix.stackexchange.com/questions/34093/static-ipv4-ipv6-configuration-on-centos-6-2 My netstat show this. Shell doesnt recogize -rn6 though.It shows invalid option -- 6 netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 27.254.38.128 0.0.0.0 255.255.255.128 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 27.254.38.254 0.0.0.0 UG 0 0 0 eth0 FYI: I'm using Centos 5.7. Thank you a lot in advance.

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• Windows SBS 2008 - how to diagnose port forwarding problems?

  - by Alt_Doru

  We have a Windows SBS 2008 machine. Several ports need to be forwarded from the router to the server (the machine hosts a FTP server, a Web server, and we need to be access it through Remote Desktop). We recently changed routers (from SpeedTouch to Huawei EchoLife HG520s). With the previous router, port forwarding worked fine. Now, after setting up port forwarding on the new router, nothing works anymore. Can anybody help me with directions on how to diagnose/troubleshoot port forwarding problems on the router and in Windows SBS 2008? E.G.: after forwarding a port in the router interface to the internal IP of the server, how can I see in the SBS 2008 logs if the request is properly forwarded to it?

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• Issues configuring CUPS print server for Ubuntu Server 9.10

  - by Tone

  I have a 9.10 Ubuntu Server installed and I want to make it a print server and am trying to get access to the cups browser admin page from a windows client machine. I installed cups: sudo apt-get install cups then I edited the /etc/cups/cupsd.conf file and tried several different listen cominbations: Listen 192.168.1.109:631 #ip my router gives it3 Listen /var/run/cups/cups.sock #already in conf file Listen fileserver:631 #hostname of server Port 631 #listen for all incoming requests on 631? samba is also installed (which I think is necessary to share the printer out? and finally I added my user to the lpadmin group: sudo adduser tone lpadmin but when I try to navigate any of the following I get 403 forbidden http://fileserver:631/admin http://fileserver:631 http://192.168.1.109:631/admin http://192.168.1.109:631 What did I miss?

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• windows 2008 Server R2 Enterprise IIS 7 Unable to connect to Local network From Out Side

  - by rana sami akhtar

  i my company i had hosted a web page on live ip. external users can come to that page on server having IIS 7.. the problem is that on my page i placed three buttons one of internal exchange server , internal ftp server and internal Intranet. they are in internal network on different locations. i can come to main page but when i click the links the page not found error occurs. how can i reach all my internal servers that are running different services from internet through one page that can also authentication properly i am new please guide me step by step.

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• How to log the actual output in apache?

  - by Oscar Rodriguez

  I am doing LAMP development for a mobile platform. However, the client browser does not allow me to view the source code of visited pages. I consider the source code to be of huge importance for debugging, so I would like to configure my web server so every time a user makes a request, in addition to sending the client a response, that response (the actual contents of the returned page) is also stored in a file with a filename I can cross-relate with access_log (maybe ip-timestamp-filename? or maybe a unique ID in an additional column in access_log?). I've searched quite a bit, but haven't even gotten close to finding what I'm looking for. Has anybody been able to do this?

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• Reset DRAC/MC password on Dell BladeCentre 1855

  - by Farseeker

  I have a Dell Blade Centre 1855, and nobody knows what the root password for the DRAC/MC card in the blade chassis is (I tried root/calvin). I do not have IP access to the DRAC/MC, nor do I have physical access to the back of the blade centre to access the DRAC/MC module. I do have serial access (and can see the login prompt in hyperterm). I do have physical access to the FRONT of the chassis (the back of the cabinet is locked and lo-and-behold the key cannot be found). Does anyone know how to reset the password? Every piece of literature I find on the internet tells me I need to log in, or run racadm on the host machine (which I can't, because it's inside a blade chassis). If someone does know how to do it with physical access to the back of the bladecentre, please post it anyway, as I'm sure I'll get access to the back of the cabinet one day)

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• Red 5, First setup "ssl_error_rx_record_too_long" error message

  - by charles horvath

  I am using Windows 7 and I installed Red 5 0.9.1 just recently. After it installed I put 127.0.0.1 as the IP adress and 5080 as http port. After I start the service in windows I try to connect to the localhost in firefox (http://localhost:5080) and get this error An error occurred during a connection to localhost:5080. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long) I checked my global flash settings and allowed localhost to pass along with the Red 5 folder in C/programfiles/red5. I currently have the up to date versions of JDK and JRE also. Any tips on what might be wrong?

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• RRAS VPN Server on Windows 2008 Behind NAT

  - by Chris

  Ok, so I have kind of a funky setup, let me see if I can describe it. I have a single VMware host with a public IP address 74.xx.xx.x Inside that host, I have 3 VM's Web Server - 1 NIC - 192.168.199.20 SQL Server - 1 NIC - 192.168.199.30 RRAS/VPN Server - 2 NICs 192.168.199.40 & 192.168.199.45 Due to Limitations of my ISP, all of the VM's are connected to the host VIA NAT. I have NAT setup for the webserver so all incoming requests on 74.xx.xx.x via port 80 route to 192.168.199.20. This works fine. Now I want to set up a Windows 2008 VPN server inside this NAT network and forward the correct traffic to it. My questions are as follows? What are the TCP/UDP ports that i have to forward? What special configuration is needed on the server and clients since this is behind a NAT Any other advice would be wonderful.

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• Multiple URLs Single Server

  - by Amit

  Hi, In the DNS I have setup multiple URLs for my website (all pointing to same server). The entries in DNS looks like as below: Host TTL Numeric IP www .mysite.net 7200 192.168.31.12 @ (None) .mysite.net 7200 192.168.31.12 mycompany .mysite.net 7200 192.168.31.12 I wrote a code on Login.aspx page to check the URL and navigate to appropriate company login page. So if I type www.mysite.net or mysite.net then I am getting navigated to standard login page. But when I type mycompany.mysite.net still I am getting navigated to standard login page. But when I type https://mycompany.mysite.net then I am getting navigated to company specific login page. Why I need to type complete URL with https to get navigated to compay specific login page? Why it is not working just with mycompany.mysite.net? Any help of this is highly appriciated. Thanks, Amit

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• Domain Name from 123-reg, VPS from Linode. How to point to Google Mail for Business?

  - by Ashutosh Jindal

  I have bought a domain from 123-reg.co.uk and have successfully pointed it to the IP Address of my Linode VPS so that going to the domain serves up the pages from the Apache server running on the VPS. The instructions I followed to do this are : Now, I am trying to get the domain's mail handled by Google Apps for Business. I have tried updating the MX records at Linode following this tutorial : http://library.linode.com/email/google-mail And also followed the instructions to update the MX Records in 123-reg's control panel : I am slightly confused now. Where should I be adding the MX records? In my domain registrar's control panel or in Linode's VPS? Both have options to update the MX records.

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• Dell printer goes offline after second print job.

  - by Ac0ua

  Dell printer goes offline(server connection) after second print job. Although the printer's display says it is ready. If you turn off then on the printer you can send one job and goes back offline(server connection) on the next print job. We have multiple Dell 2330dn printers installed through a print server, only one of the printers is experiencing this problem. Two different users. Two different machines. Two different operating systems (win7 and Vista). The computers have been reset. Dell printers have web interface if this helps (through IP address). Thanks for any help!

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• setting domains

  - by allenskd

  I'm setting a local webserver to do a lot of web development work from now on. I'm not really knowledgeable in hosting configuration. Thing is I just added mydomain.com in /etc/hosts that's fine but what's the next step? TI need to use the wildcard on *.mydomain.com, so I'm figuring I need to add my zone in bind, is this correct? so I can make use of virtual hosts in apache and in play-framework Everything will be local, but once in a while I want to make public of my webserver to certain people using the no-ip service, in windows I've done it, in linux I don't know if it's any difference. The question is pretty much if I'm configuring it right or not? If this sounds confusing let me know, I'll try to detail it more

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• Nginx ssl redirection of images

  - by krishna raj

  Hi. I am trying to set up nginx as reverse proxy for a tomcat server using SSL connection. I want the client's browser to load my tomcat application when nginx reverse proxy's IP is called from client's browser. My tomcat application's address is 192.168.25.25 and nginx proxy's address is 192.168.25.50 In my nginx.conf file i have added these lines # location / { proxy_pass https://192.168.25.25:443/myapp/; proxy_redirect https://192.168.25.25/myapp/ https://192.168.25.25/; } # Some of the images in my application is stored at 192.168.25.25/images/ . Now these directories cant be accessed as the proxy_pass is set to 192.168.25.25:443/myapp. Is there way to access images directory also without changing proxy_pass ? Thanks in advance.

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• Getting ERR_DNS_FAIL when loading a local webserver page?

  - by NickA

  When I go to a page hosted on a machine on a local network, I get a "The page cannot be found" error with "ERR_DNS_FAIL" in the title. Any ideas what this is or why I am getting it on my computer? I've tried in Firefox, IE and Chrome. Other computers on the network load the page just fine. I'm pretty sure it is from the hostname. I am able to access the page if I browse to it using the IP of the machine. However, it has two hostnames and both are giving the ERR_DNS_FAIL error. I tried restarting the browsers or rebooting the machine, but neither helped. EDIT: ISSUE RESOLVED ON ITS OWN!

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• OpenVPN make redirect-gateway optional

  - by Tuinslak

  Hi there, I'm currently running an OpenVPN server for multiple clients. All traffic is directed through the VPN (it's set up as gateway; push "redirect-gateway def1"). So far, all is working fine. However, I'd like to connect a couple of servers to this virtual private network, without these servers using the OVPN daemon as gateway. These servers have to be accessible from both their WAN as well as their LAN IP address. Certain services will be accessible only from the LAN side. Is there any way, for a client, to ignore the push redirect-gateway option? Kind regards, Tuinslak

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• DYNDNS setup with TightVNC on Windows Server 2008 R2

  - by StealthRT

  Hey all, i seem to be having a problem with getting ports to forward on my Windows Server 2008 R2 PC. I already set all my port forwarding for 5900/5800 on my router for my PC's IP address (192.168.1.22) but when i try to use the TightVNC PFPortChecker on port 5900 it tells me its not opened! I can not even connect to my DYNDNS server name (xxxxxxx.dyndns.org). As a side note, i am running Windows XP SP3 within a VirtaulBox inside Windows Server 2008 R2 but running the PFPortChecker in Windows 2008 R2 brings the same results as it does in the VM. I also added them to the Windows Firewall Advanced Security form to add those inbound ports for full access. What could i possibly be missing? Thanks for your time! David

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