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• Nautilus cannot handle "sftp" locations via x11

  - by blockhead

  I'm logging into my home computer (Ubuntu 10.04) via ssh, and now I want to open a remote connection (one that is stored in my bookmarks). Nautilus tells me "Nautilus cannot handle "sftp" locations via x11". Why might this be?

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• How to setting up iptables for traffic fowarding on port 80 from specific sources.

  - by Darkmage

  Im running a web server on port80, but i want traffic coming from ip 212.333.111.222 on port 80 to be fowarded to port 9020 on the same server that my web server is rinning at that is my sshd port

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• Set Thunderbird "from" address by incoming "to" address

  - by user293698

  I have configured my email server to cache all email to my mailbox. So [email protected] and [email protected] go to one mailbox. Every forum, registration, and guy get their own address for sending me emails so I can deliver it to /dev/null if anyone start spamming. That's the working setup. Now the problem: If I reply to a message, then Thunderbird always sets my default Identity as sender. I know I can add additional identities, but I don't want to add every address. How can I configure when a email is sent to [email protected], I answer with [email protected].

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• Why does Exim puts emails on hold if there are frozen messages in the queue?

  - by user51932

  I've a CentOS with CPanel server working as a SMTP server, which currently uses 20 different hostnames and IP addresses to deliver email for an email newsletter service. However, it's extremely slow in sending emails. It's sending like 10 emails per minute, which I check by running the "exim -bpc" command. What could be affecting this? One thing I'm supposing, is that there are frozen messages in the queue, which are slowing down the sending until they're sent out, and are putting new messages on hold. What are the most common reasons a message can get frozen? Also, would it be more efficient to use 20 different small VPSs to send out email rather than use one large VPS with the 20 different hostnames and IPs in it?

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• how do I create a bidirectional bridge using iptables

  - by Kolzoi

  Setup: I have a samsung LCD TV that is connected via eth0 to a T41 Thinkpad running Ubuntu 10.10 which is wirelessly connected to the home router. I am trying to get Samsung's remote control app working on my iPad but the app won't allow me to put in an ip address and only discovers the tv if it's on the same subnet as the iPad (lame). So I need the laptop to route packets from eth0 to the wireless interface (wlan0), and I need about 3 ports on the wlan0 interface to be forwarded to the samsung tv. Hopefully all this makes sense. I've been messing around with iptables and samsung is now able to access internet via laptop wireless, but mapping from wlan0 back to the samsung tv is eluding me.

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• multiple servers porting to each other

  - by JackLeo

  hello, here is the details: theres is who "servers": VPS with ubuntu 10.10x32 and home pc, win7 on win7 apatche2.2 is running with webpage on VPS game server is running DNS forwards www subdomain to PC, and everything else to VPS (all via ip) I can not configure DNS directly, my providers do Wanted result: DNS forwards everything to VPS, VPS redirects *:80 to PC when viewing page stored in PC domain is shown normaly Questions: How to achieve that using as minimal resources as possible? Is it possible just tel my DNS provider to fix it that :80 port is in different ip? P.S. its for my friend, i do have some apatche and VDS configuration exp. More of a programmer i am. so trow everything you can ;)

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• Simple mail server setup for a user-based website.

  - by Absolute0

  I am working on a simple website that has user registration. All I need to do is confirm email addresses by emailing a confirmation email and maybe send out periodic emails regarding various information. I am also considering having a [email protected] email for user questions and comments. The application is written in django and I am running it on ArchLinux on a VPS. I have no knowledge of mail servers. I tried setting up postfix and qmail but had no luck. They are complicated and require a lot of configuration to get them working properly. My use case is super simple and doesn't not require anything fancy. Is there any simple mailing setup that will enable me to quickly get emailing working with my django app with minimal work?

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• Can I pass HTTPS traffic from one port to another?

  - by Kit Sunde

  I'm doing a proxy_pass in nginx on port 80 to 8000 on my remote server, and then a port forward from 8000 to 80 from the remote to my localhost. This works great, but I'd also like to do it with https but it seems like nginx needs a valid cert to pass the traffic on. Is there a way for my remote server to simply forward the trafic from port 443 to say 8443 (and then I'll forward remote 8443 to local 443). Then terminate ssl on my development machine instead instead of needing to do it on the remote server? My remote runs ubuntu and my localhost runs osx.

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• send mail via smtp on debian 6?

  - by acidzombie24

  i followed this tutorial http://library.linode.com/email/exim/send-only-mta-debian-6-squeeze?format=print When i got to the end, i sent the email to [email protected]. I didnt receive it. I didnt get spam either, i got nothing. I also didnt get an error message on the console. How do i properly sent up a smtp server and send an email from it? I'll not i am testing this on my VM on my local computer. My ISP doesnt block any traffic whatsoever (which is one reason why i use them) so... what can i do? i also tried this tutorial

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• How map/forward port under Ubuntu for other machine ? (localhost 555 -> 192.168.0.21:555)

  - by marc

  Welcome, Any idea how can i create "virtual" listening port on my Ubuntu computer porting for remote IP ? I mean, something like this. When i write telnet 127.0.0.1 555 I want get connection to computer 192.168.0.21 on port 555 (where i have my server). Any idea ?

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• VPN pre-shared key problems

  - by Owl

  I have two vpns set up on a Symantec Gateway Security 320. VPN 1 goes to a Symantec Firewall/VPN 100 to another clinic of ours and every hour they lose connectivity and the error log on the Firewall/VPN100 shows an invalid pre-shared key error, although, both devices show the same pre-shared key entered. VPN 2 goes to our software vendor to use an additional part of our program. I am unable to ping the remote address and so is the other company, but my VPN status shows it is connected. They have told me the pre-shared key seemed to be automatically trying to resubmit itself as if it were incorrect, about every hour even though it is correct. They also told me port80 traffic was closed but I show the HTTP service using 80 redirected to 80 in my firewall settings. Please help.

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• Windows Server 2003 Router, Good approach [closed]

  - by jM2.me

  Possible Duplicate: Windows Server 2003 Router with PortForwarding Situation We have Verizon Fios 25/25 Internet Connection, Server acting as a router, and around 12 office computers. Task Portforward port 29000 from office computer. Problem Once I connected wan and lan cables I just had to set static lan ip (on server) and plug in switch with office computers into second nic. Then just right click on wan nic and select share internet connection. All office computers were assigned with an IP address 192.168.0.XXX and Gateway 192.168.0.1 (server). Now I have to open port and portfoward it from computer 192.168.0.190 (static ip, manual). Using this guide http://www.rosscode.com/blog/index.php?title=port_forwarding_in_windows_2003&more=1&c=1&tb=1&pb=1 I faced a problem. Before enabling "RRA" I had to unshare internet connection (wan interface) and was able to setup network. Now how do I setup a network within "RRA" and share internet with private network? Thank you much

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• Postfix filter messages and pass to PHP script

  - by John Magnolia

  Each time a user signs up to our website through an external provider we get a basic email with the body contents containing the user details. I want to write a personalised automatic reply to this user. The actual parsing of the email body and reply via PHP I have already wrote but how do I go about configuring this from postfix? At the moment it is configured using a roundcube Sieve plugin where the email gets moved into a folder "Subscribe". Is it possible to create a custom action here? Debain Squeeze, Postfix and Dovecot

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• X11 not sending windows to remote computer matlab

  - by MZimmerman6

  I am trying to set up my home desktop, running OS X Mountain Lion, to basically do a bunch of grunt work for me remotely. I have set up ssh, and am able to remotely control the computer fine, but the issue comes in when I try to run X11 apps, like MATLAB, remotely and get windows to pop up. Every time I try to bring up a new window it either opens that window on the remote computer (not the one I am using to control it), or it tells me it can't find a display. here is how I am setting up my ssh assume my matlab alias is set up properly, which it is. ssh -X [email protected] matlab -nodesktop figure; This will open the window on the computer I am SSHing into, and not on the remote one. Basically I want that window to open on the computer I am remoting from. I changed my SSH X11Forwarding and stuff to be yes in ssh_config and sshd_config. Any other suggestions?

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• forward same port but for two different IPs (cisco)

  - by Colin

  Hi! I have a cisco running IOS 12.0(25) responding to two different IPs addresses: IP_A and IP_B. Behind this router I also have two different servers: server_A and server_B. What I want is to forward port 22 to both servers, so: IP_A, port22 -> server_A, port22 IP_B, port22 -> server_B, port22 ATM this only works for one of them (server_A), this is my config: interface Ethernet0/0 description Internet ip address IP_A 255.255.255.0 ip address IP_B 255.255.255.0 secondary no ip directed-broadcast ip nat outside no ip mroute-cache no cdp enable ip nat pool pool_A IP_A IP_A netmask 255.255.255.0 ip nat pool pool_B IP_B IP_B netmask 255.255.255.0 ip nat inside source list A pool pool_A overload ip nat inside source list B pool pool_B overload ip nat inside source static tcp server_B 22 IP_B 22 extendable ip nat inside source static tcp server_A 22 IP_A 22 extendable access-list A permit server_A access-list B permit server_B

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• Does connecting to the default host via public IP from within its subnet cause any issues?

  - by username

  I'm setting up a small office network with a single public IP (let's say it's 69.16.230.117). I've configured NAT on the router with incoming traffic forwarded to the server (say the server has a private IP of 192.168.0.2). Is it okay to configure the client machines on the same subnet to access the server via the router's public IP (69.16.230.117)? In practice it's never caused me problems, but I've heard, here and there, that it is a bad idea, and one should use the private IP (192.168.0.2). Does connecting to the default host via public IP from within its subnet cause any issues? Please refrain from writing "never! it breaks the intranet!" ;-)

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• Configure Postfix with Virtual Mailboxes to forward to a script

  - by keykiller91

  I am using the Postfix MTA with a virtual configuration from MySQL for the Users and Forwardings. Now I want some Adresses (that are dynamicaly generated, for writing via E-Mail to a Forum) to be forwarded to a php-script. I already have tried to put the script quoted and piped as destination bit it doesn't work. "|php -q /path/to/script.php" But if I send a mail to that domain it says: User “|php -q /path/to/script.php"@mydomain.tld not found

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• Changed domain A records for new static ip, but no mail

  - by Tim the Enchanter

  We have recently changed our ISP, I have changed the mail and mailserver DNS A records for our domain name to point to the new external static IP address assigned to the router by the new ISP (the MX record points to mail.<mydomain> as always) but I am not getting any email (though sending email works). Do I just have to wait will the change propagates? I am slightly concerned because I can connect to the web email service made visible through the new router which suggests that the mail.<mydomain> static I.P. address change has happened. Have I missed something?

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• How can I monitor ports on Windows?

  - by Olav

  What is the simplest way on "local" (1*) Windows, for known ports, to: Find out if it is used. Find out as much as possible about what is behind the port. Find out as much as possible about traffic through the port. Find out if something else is interfering with the port and traffic to it. I have used Fiddler in the past, but I think that's mostly HTTP? I don't if Wire-shark does more? I think there is a tool closely integrated with Windows? Which one? (5). I am looking at NMap, but its seems to be more a suite of tools, and a high entry level. 1*: Primarily this is for what happens inside my Windows Machine, but if necessary, I can for example use a VM, or the wireless connection.

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• Is it possible to host a website with Apache HTTP through a ZyXEL EQ-660R modem and a Netgear WGT624v3 wireless router?

  - by Vortico

  Essentially, I have a spare desktop computer I'd like to turn into a web server, but my modem and wireless router are very difficult to work with. I installed Apache HTTP and successfully hosted a test page which can be accessed anywhere on the LAN. However, I'm having trouble setting up the server to be accessed from my external IP address. I was supplied with a ZyXEL EQ-660R DSL modem by my ISP (CenturyLink) and bought a Netgear WGT624v3 wireless router in which to connect my laptop and spare desktop. ZyXEL's website is no help, and I don't think much of the problem is with the Netgear router. I've played with many settings and have tried to forward port 80 from the modem, but I've had no luck. Could someone direct me toward a solution or recommendations for more promising hardware? Or should I admit defeat and explore other hobbies? :)

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• Why does Exim puts emails on hold if there are frozen messages in the queue?

  - by user51932

  Hi, I've a CentOS with CPanel server working as a SMTP server, which currently uses 20 different hostnames and IP addresses to deliver email for an email newsletter service. However, it's extremely slow in sending emails. It's sending like 10 emails per minute, which I check by running the "exim -bpc" command. What could be affecting this? One thing I'm supposing, is that there are frozen messages in the queue, which are slowing down the sending until they're sent out, and are putting new messages on hold. What are the most common reasons a message can get frozen? Also, would it be more efficient to use 20 different small VPSs to send out email rather than use one large VPS with the 20 different hostnames and IPs in it?

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• Redirect websockets to port?

  - by DigitalMan

  So, I've got a WebSocket server in C++, that is a completely stand-alone entity - handles header parsing, receiving, sending, all of it on its own, listening directly to the port. Problem is, it needs to run on a server alongside Apache, and that's a bit of a problem. Now, there was a solution here to a similar issue involving mod_proxy, but I'm hoping I can intercept and redirect WebSocket communication before Apache even knows about it, possibly with iptables. So the question is, is it possible to direct traffic bound for chat.mysite.net to a WebSocket server on, say, port 8080, while anything else headed to mysite.net proceeds as expected to Apache?

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• How can my local website be visited from outside?

  - by unknown (google)

  I can visit my site by http://localhost And I give my friend my ip address like 220.181.6.184, but they can't browse it by http://220.181.6.184 How to enable this?

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• Remoting into two diffrent servers on the same network

  - by user160605

  I`m trying to figure out a way to remote into both my servers on the same network. I have a 2008 r2 and a server 2003. Right now i can remote into my server 2003 but I dont know what IP to use for the 2k8 server. They seem to have the same public im. Both servers are behind a fire wall (sonic wall tz170) I rememeber having to to something on the firewall to get into the 2k3 server but forgot what I did... Can anyone give some advice thanks

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• How do I set up a mailing list for over 2000 people?

  - by John Hoffman

  I manage IT for a large organization with over 2000 people. The administration would like to send an email (often with up to 5 word document attachments) about once per week. They also want to categorize people. For instance, about 40 people are "teachers," about 1800 people are "students," and about 10 people are "board members." They may send an email to any combination of these categories. Here's what I have tried: I bought a server, installed Ubuntu server edition on it, and wrote a python script to send out their emails. However, pretty soon, mail services such as Gmail and Yahoo began to treat the mail I send out as SPAM. I'm guessing this is because I am sending an email with 2000+ people in the "bcc" field. Maintaining this server also takes a lot of time. How do I set up a mailing list for over 2000 people? Must I defer to paid services?

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