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• Mail ports doesn't seem to work under squid proxy....

  - by Kumar P

  I have used the following commands acl Safe_ports port 25 # smtp acl Safe_ports port 110 # pop3 But when i configured my mail account in my client's machine it doesn't seem to work... Any suggestion....

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• iptables not writing rules.

  - by Darkmage

  im running these two rules as root, but when doing a iptables -L it dosent show any rules, any one have an idea of what the problem can be? iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 --source 84.244.145.135 -j REDIRECT --to-port 1222 iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 --source 243.134.97.194 -j REDIRECT --to-port 1222 duno@Virtual-Box:/home/glennwiz# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination

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• Nginx refuses to bind to 8080

  - by Stofke

  I have setup Varnish to run on port 80 which seems to work fine. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME varnishd 8005 nobody 7u IPv4 14055 0t0 TCP *:http (LISTEN) varnishd 8005 nobody 8u IPv6 14056 0t0 TCP *:http (LISTEN) Under available sites in /etc/nginx I have the file default with: server { listen 8080; .... nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use) Why is it still looking for port 80?

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• monitoring a /21 for potential bad guys with snort and port mirroring

  - by Adeodatus

  Hi all, I want/need to start monitoring our network a bit better. Its an odd network in that it comprises 2 /22 public IPs and a slew of private admin IPs. I do have one point in the network where it all comes together and I can turn on port mirroring on the catalyst. From that port, I'd like to turn up a box running various utilities. Snort is high on my list but it'd be nice to also get some networking statistics with something like Netflow. So, what are peoeple's thoughts. I can turn up a box needed for this with a bit of ease. We have the hardware available. What should I run? I'd love to know what kind of nasty things are potentially going on but I'd also like to see statistics on what people are doing on the network so I can better tweak our systems to handle it better and improve performance. I'm open so please, give me some ideas to go along with what I've got.

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• pure-ftpd not listening on specified port

  - by Jason McLaren

  I installed the pure-ftpd package (version 1.0.35-1) on an Ubuntu 12.04 box (an EC2 instance based on the standard Ubuntu 12.04 AMI). The pure-ftpd daemon is running (verified with ps), though there is no PID file (expected one to be created by the /etc/init.d/pure-ftpd script). Here's the resulting command that gets run by the init.d script: /usr/sbin/pure-ftpd -l pam -O clf:/var/log/pure-ftpd/transfer.log -o -8 UTF-8 -u 1000 -E -B -g /var/run/pure-ftpd/pure-ftpd.pid Here's my real problem: the ftp server isn't actually listening on any port (checked with netstat and nmap). So I can't ftp to the server (either locally using localhost or remotely using the public IP address). I tried adding a Bind file to /etc/pure-ftpd/conf and restarting, but it didn't help. When I installed pure-ftpd, it replaced inetd with openbsd-inetd, but did not run it since there were no services enabled. So inetd is not listening on port 21 either. (Apparently Ubuntu has a no-inetd-by-default policy, according to https://lists.ubuntu.com/archives/ubuntu-users/2010-September/227905.html .) I want to run pure-ftpd by itself (not with inetd) anyways, since the /etc/init.d/pure-ftpd script requires no inetd if you use the UploadScript feature. I'm not familiar with how Ubuntu handles network services (and can't find any relevant docs besides generic man pages), so I'm probably missing something obvious. Nothing seems out of the ordinary with /etc/hosts.allow (empty) or hosts.deny (empty), and I didn't add any firewall rules (iptables -L shows that the firewall is in its initial state). I've checked the pure-ftpd docs; not sure what else to look at. Any help would be appreciated, thanks!

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• How to enable telnet with port 3306 during Master to master replication on MySQL Server

  - by Mainio

  I am trying to do Master to Master Replication in Windows Server 2008. I am successfully able to replicate all the database of Master 1 to Master 2. But I am unable to replicate the changes made on Master 2 to Master 1. Later on I found that, I can telnet to Master 1 from Master 2 with port 3306 but I am not able on telnet from Master 1 to Master 2. When I check netstat on both Master. I found the following result. I couldn't publish my public IP so I put name as Master 1 and Master 2 for their respective IP Master 1 C:\Users\XXXXX>netstat Active Connections Proto Local Address Foreign Address State TCP Master 1:3306 Master 2:61566 ESTABLISHED TCP Master 1:3389 My remote:56053 ESTABLISHED TCP 127.0.0.1:3306 Master 1:60675 ESTABLISHED TCP 127.0.0.1:3306 Master 1:60712 ESTABLISHED TCP 127.0.0.1:60675 Master 1:3306 ESTABLISHED TCP 127.0.0.1:60712 Master 1:3306 ESTABLISHED Master 2 C:\Users\XXXX>netstat Active Connections Proto Local Address Foreign Address State TCP Master 2:3389 My remote:56124 ESTABLISHED TCP Master 2:61566 Master 1:3306 ESTABLISHED TCP Master 2:61574 bil-sc-cm02:http ESTABLISHED TCP 127.0.0.1:3306 Master 2:61562 ESTABLISHED TCP 127.0.0.1:3306 Master 2:61563 ESTABLISHED TCP 127.0.0.1:61562 Master 2:3306 ESTABLISHED TCP 127.0.0.1:61563 Master 2:3306 ESTABLISHED TCP 127.0.0.1:61573 Master 2:3306 TIME_WAIT All shows that In my master 2, port 3306 is not activate. Now I need solution over here. How can I figure it. Your small suggestion would be million for me. Thank you Regards, Udhyan

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• Mac Port error installing gsoap

  - by Kevin

  Hi All, I have installed Mac Ports V1.8.1 no worries. I ran sudo port -v selfupdate no worries. I ran sudo port install gsoap And get the following error message. --- Computing dependencies for gsoap --- Fetching gsoap --- Attempting to fetch gsoap_2.7.13.tar.gz from http://optusnet.dl.sourceforge.net/gsoap2 --- Verifying checksum(s) for gsoap --- Extracting gsoap --- Applying patches to gsoap --- Configuring gsoap Error: Target org.macports.configure returned: configure failure: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_gsoap/work/gsoap-2.7" && ./configure --prefix=/opt/local --enable-samples " returned error 77 Command output: checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for gawk... no checking for mawk... no checking for nawk... no checking for awk... awk checking whether make sets $(MAKE)... no checking build system type... i386-apple-darwin10.2.0 checking host system type... i386-apple-darwin10.2.0 checking whether make sets $(MAKE)... (cached) no checking for C++ compiler default output file name... configure: error: C++ compiler cannot create executables See `config.log' for more details. Error: Status 1 encountered during processing. Any ideas as to why it is failing. Regards Kevin

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• Nginx Server Block Port 8081 Path to Root Folder

  - by Pamela

  I'm trying to password protect all of port 8081 on my Nginx server. The only thing this port is used for is PhpMyAdmin. When I navigate to https://www.example.com:8081, I successfully get the default Nginx welcome page. However, when I try navigating to the PhpMyAdmin directory, https://www.example.com:8081/phpmyadmin, I get a "404 Not Found" page. Permission for my htpasswd file is set to 644. Here is the code for my server block: server { listen 8081; server_name example.com www.example.com; root /usr/share/phpmyadmin; auth_basic "Restricted Area"; auth_basic_user_file htpasswd; } I have also tried entirely commenting out #root /usr/share/phpmyadmin; However, it doesn't make any difference. Is my problem confined to using the incorrect root path? If so, how can I find the root path for PhpMyAdmin? If it makes any difference, I'm using Ubuntu 14.04.1 LTS with Nginx 1.4.6 and ISPConfig 3.0.5.4p3.

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• Configuring port forwarding for SSH - no response outside LAN [migrated]

  - by WinnieNicklaus

  I recently moved, and at the same time purchased a new router (Linksys E1200). Prior to the move, I had my old router set up to forward a port for SSH to servers on my LAN, and I was using DynDNS to manage the external IP address. Everything worked great. I moved and set up the new router (unfortunately, the old one is busted so I can't try things out with it), updated the DynDNS address, and attempted to restore my port forwarding settings. No joy. SSH connections time out, and pings go unanswered. But here's the weird part (i.e., key to the whole thing?): I can ping and SSH just fine from within this LAN. I'm not talking about the local 192.168.1.* addresses. I can actually SSH from a computer on my LAN to the DynDNS external address. It's only when the client is outside the LAN that connections are dropped. This surely suggests a particular point of failure, but I don't know enough to figure out what it is. I can't figure out why it would make a difference where the connections originate, unless there's a filter for "trusted" IP addresses, which is perhaps just restricted to my own. No settings have been touched on the servers, and I can't find any settings suggesting this on the router admin interface. I disabled the router's SPI firewall and "Filter anonymous traffic" setting to no avail. Has anyone heard of this behavior, and what can I do to get past it?

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• Configuring port forwarding for SSH - no response outside LAN

  - by WinnieNicklaus

  I recently moved, and at the same time purchased a new router (Linksys E1200). Prior to the move, I had my old router set up to forward a port for SSH to servers on my LAN, and I was using DynDNS to manage the external IP address. Everything worked great. I moved and set up the new router (unfortunately, the old one is busted so I can't try things out with it), updated the DynDNS address, and attempted to restore my port forwarding settings. No joy. SSH connections time out, and pings go unanswered. But here's the weird part (i.e., key to the whole thing?): I can ping and SSH just fine from within this LAN. I'm not talking about the local 192.168.1.* addresses. I can actually SSH from a computer on my LAN to the DynDNS external address. It's only when the client is outside the LAN that connections are dropped. This surely suggests a particular point of failure, but I don't know enough to figure out what it is. I can't figure out why it would make a difference where the connections originate, unless there's a filter for "trusted" IP addresses, which is perhaps just restricted to my own. No settings have been touched on the servers, and I can't find any settings suggesting this on the router admin interface. I disabled the router's SPI firewall and "Filter anonymous traffic" setting to no avail. Has anyone heard of this behavior, and what can I do to get past it?

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• Windows XP - Power surge on hub port

  - by Swift-Tuttle

  Since last few weeks I constantly get this error, as status bar balloon: Power Surge on Hub Port - A USB device has exceeded the power limits of its hub port. Due to this now I am unable to access any USB devices properly, they get disconnected intermittently. I did quite a few things to resolve this problem, firstly obviously through the Windows help. I even tried all the things told on the Microsoft website(which essentially says is to check and update the driver) but in vain. One suggestion, I found when I google'd was to disable the USB2 controller through the Device Manager and since at every startup the System configuration comes up complaining that it has been changed etc.(On that same site it is mentioned to ignore this message.) But after everything I still cant solve this problem. Any help is much appreciated. The system is installed with Windows XP service Pack 3 and all the updates till last month. Please let me know if any other hardware info is required. **UPDATE** My laptop is about 5 years old now, its an HP with Celeron 1.4G processor. Windows XP SP3 installed. All latest windows updates installed. 2 USB ports available. BIOS is HP 68DTD ver F.0A Do I need to update my BIOS from somewhere ? or is this a hardware problem altogether?

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• Connect to Postgres remotely, open port 5432 for Postgres in iptables

  - by Victor

  I am trying to connect to Postgres remotely but I need to open port 5432 in iptables. My current iptables configuration is as follows: *filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You can modify this to only allow certain traffic -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections # # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE # -A INPUT -p tcp -m state --state NEW --dport 30000 -j ACCEPT # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT What would I have to add in iptables to open the port? I'm trying to install phppgadmin on a different server to access the postgres database. Thank you.

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• How to install port versions of perl modules for perl5.14 in freebsd 9.0

  - by jm666

  Trying to use perl5.14 on Freebsd with port based p5-modules. uname -impr 9.0-RELEASE amd64 amd64 ALTQ delete all installed ports, start with a clean system # pkg_delete -a # rm -rf /var/db/pkg /var/db/ports /usr/local installing portmaster, checking /etc/make.conf (here is only WITHOUT_X11=YES). Now installing perl. # portmaster -g --force-config lang/perl5.14 # perl -v This is perl 5, version 14, subversion 2 (v5.14.2) built for amd64-freebsd-multi Now perl modules from the ports, # portmaster -g devel/p5-Moose #install Moose and its deps check with pkg_info and got zilion errors like: # pkg_info pkg_info: corrupted record (pkgdep line without argument), ignoring dpendecy check with portmaster - showing dependecies on perl5.12 #portmaster --check-depends Checking p5-Class-C3-0.24 ===>>> lang/perl5.12 is listed as a dependency ===>>> but there is no installed version ===>>> Delete this dependency data? y/n [n] when tried # perl-after-upgrade -f got: Fixed 0 packages (0 files moved, 0 files modified) In short: i got installed Moose into /usr/local/lib/perl5/site_perl/5.14.2/ but all its dependencies into /usr/local/lib/perl5/site_perl/5.12.4/ Yes, it is possible fix this with: # portmaster p5- what reinstall all installed p5-packages once again, now correctly for the 5.14 but it is terrible installing them twice... Questions: What is the correct way install p5-MODULES from ports with installed perl5.14 in an clean system? How to fix wrong dependency data on perl5.12 without the need install and reinstall them again What i'm doing wrong? Ps: know perlbrew and/or Local::lib - but for this case - want port versions.

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• Rsyslogd not listening on port

  - by amorfis

  I installed rsyslogd on ubuntu server, started it and everything looks fine, but the port the server should listen on is not opened. ubuntu@node7:~$ sudo service rsyslog restart rsyslog stop/waiting rsyslog start/running, process 14114 Netstat shows it is not listening: ubuntu@node7:~$ netstat -tlan Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN tcp 0 320 172.22.0.17:22 10.8.8.38:61335 ESTABLISHED tcp6 0 0 :::22 :::* LISTEN tcp6 0 0 :::2776 :::* LISTEN tcp6 0 0 :::2777 :::* LISTEN tcp6 0 0 172.22.0.17:2777 172.22.0.11:56554 ESTABLISHED tcp6 0 0 172.22.0.17:2776 172.22.0.11:39780 ESTABLISHED This is how /etc/rsyslog.conf looks like (most comments omitted): ubuntu@node7:~$ cat /etc/rsyslog.conf ################# #### MODULES #### ################# $ModLoad imuxsock # provides support for local system logging $ModLoad imklog # provides kernel logging support (previously done by rklogd) $ModLoad imtcp $InputTCPServerRun 514 ########################### #### GLOBAL DIRECTIVES #### ########################### $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat $RepeatedMsgReduction on $WorkDirectory /var/spool/rsyslog $FileOwner syslog $FileGroup adm $FileCreateMode 0640 $DirCreateMode 0755 $Umask 0022 $PrivDropToUser syslog $PrivDropToGroup adm $IncludeConfig /etc/rsyslog.d/*.conf In /etc/rsyslog.d/35-server-per-host.conf I have following lines, and I suspect this can be the cause. What does it mean? # Stop processing of all non-local messages. You can process remote messages # on levels less than 35. :fromhost-ip,!isequal,"127.0.0.1" ~ and if it is, how could I change it to have server listening and receiving and logging messages? UPDATE: I commented out suspected line, but still it's not listening on port 514

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• EMC VNX iSCSI setup - unsure about SP/port assignment

  - by pauska

  We have a new VNX5300 waiting to get configured, and I need to plan out the network infrastructure before the EMC tech arrives. It has 4x1gbit iSCSI per SP (8 ports in total), and I'd like to get the most out of the performance until we jump over to 10gig iSCSI. From what I can read from the docs - the recommendation is to use only two ports per SP, with 1 active and 1 passive. Why is this? It seems kind of pointless to have quad-port i/o-modules and then recommend to not use more than two of them? Also - I'm a bit unsure about the zoning. The best practices guide state that you should separate each port on each SP from each other on different logical networks. Does this mean that I have to create 4 logical networks to be able to use all 8 ports? It also gives the following example: Does this mean that A0 and B0 should sit on the same physical switch aswell? Won't this make all traffic go on one switch (if both A1 and B1 are passive)? Edit: Another brainpuzzle I don't get it - each host (as in server) should not have more iSCSI bandwidth available than the storage processor. What on earth does this matter? If serverA have 1gbit and serverB have 100mbit, then the resulting bandwith between them is 100mbit. How can this result in some kind of oversubscription? Edit4: Wait, what. Active and passive ports? The VNX runs in a ALUA configuration with asymmetrical active/active.. there shouldn't be any passive ports, only preferred ones..

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• Amazon AWS VPN how to open a port?

  - by Victor Piousbox

  I have a VPN with public and private subnets; I am considering only public subnet for now. The node 10.0.0.23, I can ssh into it. Let's say I want to connect to MySQL on the node using its private address: ubuntu@ip-10-0-0-23:/$ mysql -u root -h 10.0.0.23 ERROR 2003 (HY000): Can't connect to MySQL server on '10.0.0.23' (111) ubuntu@ip-10-0-0-23:/$ mysql -u root -h localhost Welcome to the MySQL monitor. Commands end with ; or \g. --- 8< --- snip --- 8< --- mysql> The port 3306 is not reachable if I use the private IP? My security group allows port 3306 inbound from 0.0.0.0/0 AND from 10.0.0.0/24. Outbound, allowed all. The generic setup done by Amazon through their wizard does not work... I add ACL that allows everything for everybody, still does not work. What am I missing?

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• site to listen on port 88

  - by JohnMerlino

  I want to get one of my sites to listen on port 88. In ports.conf in /etc/apache2 on ubuntu server, I add so web app can listen on port 88: NameVirtualHost *:80 Listen 80 NameVirtualHost *:88 Listen 88 I have this in my etc/apache2/apache2.conf, I have this: # Include the virtual host configurations: Include sites-enabled/ Under sites enabled, I have a file looks like this: Listen *:88 NameVirtualHost *:88 <VirtualHost *:88> ServerName dogtracking.com DocumentRoot /home/doggps/public_html/eaglegps.com/current/public <Directory /home/doggps/public_html/eaglegps.com/current/public> AllowOverride all Options -MultiViews </Directory> <LocationMatch "^/assets/.*$"> Header unset ETag FileETag None # RFC says only cache for 1 year ExpiresActive On ExpiresDefault "access plus 1 year" </LocationMatch> </VirtualHost> Then I try to restart apache: /etc/init.d/apache2 restart And I get: * Restarting web server apache2 /usr/sbin/apache2ctl: line 87: ulimit: open files: cannot modify limit: Operation not permitted Warning: DocumentRoot [/home/xtreme/Sites/DogGPS-CMS] does not exist apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName [Thu Oct 18 18:04:21 2012] [warn] NameVirtualHost *:88 has no VirtualHosts /usr/sbin/apache2ctl: line 87: ulimit: open files: cannot modify limit: Operation not permitted Warning: DocumentRoot [/home/xtreme/Sites/DogGPS-CMS] does not exist apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName [Thu Oct 18 18:04:22 2012] [warn] NameVirtualHost *:88 has no VirtualHosts (13)Permission denied: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs Action 'start' failed.

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• No sound out of headphone port on laptop

  - by Thanatos

  I cannot get sound out of the headphone port on a laptop. Headphones are plugged in, and sound comes out of the internal speakers. Windows behaves normally (sound switches to headphones when headphones are inserted). It did work in Linux at one point, but something changed, we're just not sure what. Rebooting doesn't fix. This appears to occur whether or not PulseAudio is running. Things I've tried: Rebooting. No effect. Booting into Windows. It works properly, so probably not a hardware issue. All of alsamixer. My only controls are this: "Master" Volume bar & mutable, unmuted. Controls volume. "PCM" Volume bar only. 100%. "S/PDIF" Mutable only, currently muted, has no effect. "S/PDIF" Default PCM", Mutable only, currently unmuted, has no effect. Killing PulseAudio. No effect. (It also won't stay dead! Something appears to be restarting it, and I can't tell what, but it is annoying as fuck.) alsactl init 0, no effect. sudo rm -f /var/lib/alsa/asound.state, no effect. General system info: Ubuntu 10.04 LTS Toshiba Satellite T135D-S1324 lspci says I have: 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) 01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller Some edits: Yes, the headphones are in all the way. This works in Windows: You plug headphones in, the internal speakers stop making noise, and noise comes out the head phones. Windows says I only have two sound cards: the HDMI port (which I don't care about) and the "sound card", which it claims is a "Conexant Pebble High Definition SmartAudio" In Windows, both the internal speakers and the headphone jack show up as one soundcard, which in my experience, is typical. (This is a laptop)

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• _default_ VirtualHost overlap on port 443, the first has precedence

  - by Mohit Jain

  I have two ruby on rails 3 applications running on same server, (ubuntu 10.04), both with SSL. Here is my apache config file: <VirtualHost *:80> ServerName example1.com DocumentRoot /home/me/example1/production/current/public </VirtualHost> <VirtualHost *:443> ServerName example1.com DocumentRoot /home/me/example1/production/current/public SSLEngine on SSLCertificateFile /home/me/example1/production/shared/example1.crt SSLCertificateKeyFile /home/me/example1/production/shared/example1.key SSLCertificateChainFile /home/me/example1/production/shared/gd_bundle.crt SSLProtocol -all +TLSv1 +SSLv3 SSLCipherSuite HIGH:MEDIUM:!aNULL:+SHA1:+MD5:+HIGH:+MEDIUM </VirtualHost> <VirtualHost *:80> ServerName example2.com DocumentRoot /home/me/example2/production/current/public </VirtualHost> <VirtualHost *:443> ServerName example2.com DocumentRoot /home/me/example2/production/current/public SSLEngine on SSLCertificateFile /home/me/example2/production/shared/iwanto.crt SSLCertificateKeyFile /home/me/example2/production/shared/iwanto.key SSLCertificateChainFile /home/me/example2/production/shared/gd_bundle.crt SSLProtocol -all +TLSv1 +SSLv3 SSLCipherSuite HIGH:MEDIUM:!aNULL:+SHA1:+MD5:+HIGH:+MEDIUM </VirtualHost> Whats the issue: On restarting my server it gives me some output like this: * Restarting web server apache2 [Sun Jun 17 17:57:49 2012] [warn] _default_ VirtualHost overlap on port 443, the first has precedence ... waiting [Sun Jun 17 17:57:50 2012] [warn] _default_ VirtualHost overlap on port 443, the first has precedence On googling why this issue is coming I got something like this: You cannot use name based virtual hosts with SSL because the SSL handshake (when the browser accepts the secure Web server's certificate) occurs before the HTTP request, which identifies the appropriate name based virtual host. If you plan to use name-based virtual hosts, remember that they only work with your non-secure Web server. But not able to figure out how to run two ssl application on same server. Can any one help me?

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• Linux port-based routing using iptables/ip route

  - by user42055

  I have the following setup: 192.168.0.4 192.168.0.6 192.168.0.1 +-----------+ +---------+ +----------+ |WORKSTATION|------| LINUX |------| GATEWAY | +-----------+ +---------+ +----------+ 192.168.150.10 | 192.168.150.9 +---------+ | VPN | +---------+ 192.168.150.1 WORKSTATION has a default route of 192.168.0.6 LINUX has a default route of 192.168.0.1 I am trying to use the gateway as the default route, but route port 80 traffic via the VPN. Based on what I read at http://www.linuxhorizon.ro/iproute2.html I have tried this: echo "1 VPN" >> /etc/iproute2/rt_tables sysctl net.ipv4.conf.eth0.rp_filter = 0 sysctl net.ipv4.conf.tun0.rp_filter = 0 sysctl net.ipv4.conf.all.rp_filter = 0 iptables -A PREROUTING -t mangle -i eth0 -p tcp --dport 80 -j MARK --set-mark 0x1 ip route add default via 192.168.150.9 dev tun0 table VPN ip rule add from all fwmark 0x1 table VPN When I run "tcpdump -i eth0 port 80" on LINUX, and open a webpage on WORKSTATION, I don't see the traffic go through LINUX at all. When I run a ping from WORKSTATION, I get this back from some packets: 92 bytes from 192.168.0.6: Redirect Host(New addr: 192.168.0.1) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 de91 0 0000 3f 01 4ed3 192.168.0.4 139.134.2.18 Is this why my routing is not working ? Do I need to put GATEWAY and LINUX on different subnets to prevent WORKSTATION being redirected to GATEWAY ? Do I need to use NAT at all, or can I do this with routing alone (which is what I want) ?

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• Transfering Files to server IP and port

  - by Mason

  I need to transfer files from my local computer on windows 7 to a server running linux. I access the server with putty through ssh at a specific IPv4 address and port number. I've attempted using the pscp command from my local computer but was denied access by the server. "Fatal: Network error: Connection refused" c:>pscp test.csv userid@**IPv4_Addres***:Port# /path/destination_file_name. Either the server blocks all pscp attempts from unauthorized users (most likely my laptop included) or I used the command incorrectly. If you have experience using this command, where exactly will the file get transfered to, I'm assuming that the path destination starts at my home directory in the server. Also if you have any other alternative methods of transfering the files let me know. Update 1 I have also tried using WinSCP however I got permission denied for that as well, it looks like the server will not let me upload or save files. Solved I had a complete lapse of memory and forgot about sudo (spent too much time with scripts the last 2 months), so I was able to change the permissions to allow external editing. Thanks for all the help guys!

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• Dovecot starting and running, but not listening on any port

  - by Dženis Macanovic

  Among others things I'm in charge of a Debian GNU/Linux (Wheezy) DomU for the mail services of the company i work for. Yesterday one HDD that was used for this particular server has died. After installing Debian again, Dovecot decided to no longer listen on any ports (checked with netstat -l). Other services (like Postfix and MySQL) work without problems. dovecot -n: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-3-amd64 x86_64 Debian wheezy/sid ext3 auth_mechanisms = plain login disable_plaintext_auth = no first_valid_uid = 150 last_valid_uid = 150 mail_gid = mail mail_location = maildir:/var/vmail/%d/%n mail_uid = vmail namespace inbox { inbox = yes location = prefix = } pass db { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0666 user = vmail } } service imap-login { inet_listener imaps { port = 993 ssl = yes } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } ssl_cert = </etc/ssl/private/mail.crt ssl_key = </etc/ssl/private/mail.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol imap { mail_max_userip_connections = 25 } UID 150 is vmail (I double checked file permissions). I didn't install Dovecot from source, but via apt from the official Debian US mirror. There are no messages concerning Dovecot in /var/log/syslog except for: Oct 21 06:36:29 server dovecot: master: Dovecot v2.1.7 starting up (core dumps disabled) Any ideas?

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• How to redirect or rewrite IIS site with port in URL to URL without port?

  - by user2573690

  I'm not 100% sure if this is the right part of StackOverflow to post this but to me it made the most sense. Sorry if its not! Currently I have a site in IIS configured on HTTPS with port 7500. I can access this site by using the URL: https://portal.company.com:7500. What I would like to do is remove the port number at the end of the URL so users can access this site using https://portal.company.com... I am a complete beginner with IIS, but what I have tried is the HTTP Redirect, which if I used on this IIS site, would redirect a user that hits portal.company.com:7500 to some other site, which is not what I need. Another thing I have though about is creating another IIS site which serves the purpose of being at the URL portal.company.com and when its hit, it redirects to my portal.company.com:7500, but I don't know if this is the best approach. So my question is, what are my options for achieving the behavior mentioned above and what is the best/recommended approach? I haven't played with URL Rewriting before but I will look into that now while I wait for a reply. Thanks!! Using IIS Manager on a Windows Server 2008 machine.

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• Windows XP - Power surge on hub port

  - by Swift-Tuttle

  Hi, Since last few weeks I constantly get this error, as status bar balloon: Power Surge on Hub Port - A USB device has exceeded the power limits of its hub port. Due to this now I am unable to access any USB devices properly, they get disconnected intermittently. I did quite a few things to resolve this problem, firstly obviously through the Windows help. I even tried all the things told on the Microsoft website(which essentially says is to check and update the driver) but in vain. One suggestion, I found when I google'd was to disable the USB2 controller through the Device Manager and since at every startup the System configuration comes up complaining that it has been changed etc.(On that same site it is mentioned to ignore this message.) But after everything I still cant solve this problem. Any help is much appreciated. The system is installed with Windows XP service Pack 3 and all the updates till last month. Please let me know if any other hardware info is required. **UPDATE** My laptop is about 5 years old now, its an HP with Celeron 1.4G processor. Windows XP SP3 installed. All latest windows updates installed. 2 USB ports available. BIOS is HP 68DTD ver F.0A Do I need to update my BIOS from somewhere ? or is this a hardware problem altogether?

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• Using a second Wifi Router (in order to use a LAN port)

  - by Sledge81

  Problem: Connecting a TV decoder via Internet. It doesn't have inbuilt wifi so wired LAN is the only option. I bought a second Wifi Router so I could use its LAN port to create a wired internet connection to my decoder. What I want to achieve: The second Wifi Router should basically pick up the signal from the main wifi router. I would then use the LAN port to connect (with a wire) to the TV decoder. In other words have my secondary Wifi Router act as an access point, which will enable me to use a wired LAN connection to the decoder. What i've done so far: Connected the second Wifi Router to my laptop via the LAN ports. Access 192.168.1.1 and went into my second router. 1) SSID set to the same one as the main Wifi Router 2) Tried disabling DHCP and enabling DHCP (with the DNS and default gateway configured the same as the main router). When I check my network connections, I see the LAN connection too but it says 'Not connected to the internet' while the Wifi (main router) shows connected. Can someone please advise on how to use my second Wifi Router to connect to the main Wifi Router (and thus the Internet). Thanks. main wifi router: Zyxel secondary wifi router: TP Link

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