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subversion problem on mac os x

- by Mohsin Jimmy

This exists in my httpd.conf file: <Location /svn> DAV svn SVNParentPath /Users/iirp/Sites/svn Allow from all #AuthType Basic #AuthName "Subversion repository" #AuthUserFile /Users/iirp/Sites/svn-auth-file #Require valid-user </Location> This is working file When I change this to: <Location /svn> DAV svn SVNParentPath /Users/iirp/Sites/svn #Allow from all AuthType Basic AuthName "Subversion repository" AuthUserFile /Users/iirp/Sites/svn-auth-file Require valid-user </Location> and when I access my repository through URL, it gives me the authentication screen but after that screen my svn repository is not showing up correctly. to see message that it gives to me is: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log.

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How much packet loss is normal?

- by Fabian

I started monitoring our network using SmokePing. Users occasionally complain about bad network connections, but the problems went away after some minutes usually. I now wanted to get some more quantitative information about those problems. SmokePing regularly pings servers inside our network, in a connected network and outside hosts. I only have a limited amount of control over our internal network and none at all for the connection to the outside and to the second network. I now see quite often (2-4 times a day) that packets to the second network and the outside are dropped. Most of the times it is 1-2 packets out of 20, sometimes more. Inside our internal network no packets are dropped. Is this an expected amount of packet loss, or does it indicate that something is wrong? I'm mainly wondering if I should bother the university IT department about it, or if I should just accept it as it is.

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IIS Reverse Proxy support for multiple protocols

- by Abraxas

I have a server 2012 machine running IIS. It's in my DMZ and I would like to use it to do reverse proxy for several services. I can get it to route traffic on port 80 to 2 separate internal servers running web apps but there are some issues when I try to forward SSH (not port 80/443) and then when I try to forward OWA (Micrsoft exchange's 'webmail' services) to the internal mail server I run in to issues with guides (like this: http://blogs.technet.com/b/exchange/archive/2013/07/19/reverse-proxy-for-exchange-server-2013-using-iis-arr-part-1.aspx) when they say to have all traffic forwarded to the server farm created for OWA. My question for you all is this - given that there is no more Threat Management Gateway (only runs on server 2008) and ISA 2006 is also dead - is it possible to support multiple types of reverse proxies with different protocols (ftp, ssh, web, ssl-web) in IIS, or would it be better to install a different DMZ OS like a nginx server and use linux firewalls + nginx reverse proxy? Thanks for any help!

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A website hosted on the 1.0.0.0/8 subnet, somewhere on the Internet?

- by Dave Markle

Background I'm attempting to demonstrate, using a real-world example, of why someone would not want to configure their internal network on the 1.0.0.0/8 subnet. Obviously it's because this is not designated as private address space. As of 2010, ARIN has apparently allocated 1.0.0.0/8 to APNIC (the Asia-Pacific NIC), who seems to have begun assigning addresses in that subnet, though not in 1.1.0.0/16, 1.0.0.0/16, and others (because these addresses are so polluted by bad network configurations all around the Internet). My Question My question is this: I'd like to find a website that responds on this subnet somewhere and use it as a counter-example, demonstrating to a non-technical user its inaccessibility from an internal network configured on 1.0.0.0/8. Other than writing a program to sniff all ~16 million hosts, looking for a response on port 80, does anyone know of a directory I can use, or even better yet, does anyone know of a site that's configured on this subnet? WHOIS seems to be too general of a search for me at this point...

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sftp chroot access via SSH

- by Cudos

Hello. I have this setup in sshd_config: AllowUsers test1 test2 Match group sftpgroup ChrootDirectory /var/www X11Forwarding no AllowTcpForwarding no ForceCommand internal-sftp Match user test2 ChrootDirectory /var/www/somedomain.dk X11Forwarding no AllowTcpForwarding no ForceCommand internal-sftp I am trying to restrict test2 to only use /var/www/somedomain.dk For some reason when I try to login e.g. with Filezilla on account test2 I get this error: "Server unexpectedly closed network connection" The users are created and works. the SSH service has been stopped and started. test1 works when using e.g. filezilla and the root of the connection is /var/www. What am I doing wrong?

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SSH tunneling and NAT

- by thonixx

I have a virtual machine with an internal IP address and a running mailserver with IMAP/POP3/SMTP. Everything works fine except: When I do an SSH tunnel to the guest server and want to connect to the mailserver with mail.*. then it does not work. There is a connection timeout. But If i connect to the internal IP 192.168..* then it works. So what can I do to enable the access from the domain name to the virtual machine with SSH tunneling?

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Integration of Tomcat 7 with IIS 7

- by priya

After following all the steps related to integration of tomcat7 and IIS7 i am getting below error.Any idea what might be the cause?First time when I did all the steps as mentioned in tutorial my site was coming up then suddenly it stop coming up.Again i removed my site from IIS and followed the steps but then every time below error is coming:- HTTP Error 500.0 - Internal Server Error The page cannot be displayed because an internal server error has occurred. Detailed Error Information Module IsapiFilterModule Notification AuthenticateRequest Handler StaticFile Error Code 0x80070001 Physical Path D:\New\IISROOT Logon Method Anonymous Logon User Anonymous Failed Request Tracing Log Directory D:\New\Tomcat\logs I have checked the logs but trace log is not created as well as isapi_redirect.logs

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SSL support with Apache and Proxytunnel

- by whuppy

I'm inside a strict corporate environment. https traffic goes out via an internal proxy (for this example it's 10.10.04.33:8443) that's smart enough to block ssh'ing directly to ssh.glakspod.org:443. I can get out via proxytunnel. I set up an apache2 VirtualHost at ssh.glakspod.org:443 thus: ServerAdmin [email protected] ServerName ssh.glakspod.org    ProxyRequests on ProxyVia on AllowCONNECT 22 <Proxy *> Order deny,allow Deny from all Allow from 74.101 </Proxy> So far so good: I hit the Apache proxy with a CONNECT and then PuTTY and my ssh server shake hands and I'm off to the races. There are, however, two problems with this setup: The internal proxy server can sniff my CONNECT request and also see that an SSH handshake is taking place. I want the entire connection between my desktop and ssh.glakspod.org:443 to look like HTTPS traffic no matter how closely the internal proxy inspects it. I can't get the VirtualHost to be a regular https site while proxying. I'd like the proxy to coexist with something like this: SSLEngine on SSLProxyEngine on SSLCertificateFile /path/to/ca/samapache.crt SSLCertificateKeyFile /path/to/ca/samapache.key SSLCACertificateFile /path/to/ca/ca.crt DocumentRoot /mnt/wallabee/www/html <Directory /mnt/wallabee/www/html/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory>  <Directory /mnt/wallabee/www/html/sanctum> SSLVerifyClient require SSLOptions +FakeBasicAuth +ExportCertData SSLVerifyDepth 1 </Directory> So my question is: How to I enable SSL support on the ssh.glakspod.org:443 VirtualHost that will work with ProxyTunnel? I've tried various combinations of proxytunnel's -e, -E, and -X flags without any luck. The only lead I've found is Apache Bug No. 29744, but I haven't been able to find a patch that will install cleanly on Ubuntu Jaunty's Apache version 2.2.11-2ubuntu2.6. Thanks in advance.

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Routing and Remote Access Port Mapping not applied to localhost

- by Computer Guru

Hi, I've set up Routing and Remote Access (Windows Server 2003) to forward publicip:80 to a server on the private internal network, and that's working great. Incoming requests from the internet to port 80 are correctly forwarded to our internal web server and everything is fine. However, requests on the server itself are not being forwarded. That is, if I open a console window and type "telnet publicip 80" from the server on publicip, the request is not forwarded to the private server. I understand that in RRAS I've mapped port 80 on the public interface to the private server and that's why it's not working; but I don't know how to configure it so that requests from the local PC are also forwarded to the private server. I'd appreciate any help or feedback on the matter. Thanks!

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How to get rid of NAT in a LAN?

- by Alberto

Currently the LAN I manage is organized as follows: internal network (192.168.1.0) which uses a Linux server as a gateway (internal address on interface br0 192.168.1.1, external address on interface br1 10.0.0.2) through NAT; then the 10.0.0.0 network has another gateway (10.0.0.1) which through another NAT connects the whole thing to the internet. What I would like to achieve is to configure the Linux server so that the first layer of NAT is no more necessary, so that for example a computer in the 10.0.0.0 network can ping every computer in the 192.168.1.0 network. I deleted this iptables rule: iptables -t nat -A POSTROUTING -o br1 -j SNAT --to-source 10.0.0.2, but of course now computers on 192.168.1.0 cannot reach the internet; ip forwarding is of course enabled. What's missing here? Thanks

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Blocked connections passing through firewall. What is wrong?

- by Kiranu

In our company we have a small business router (Cisco RV082) on which we are using its standard configuration (block all incoming traffic). We also have an SMTP relay configured (using WS2008R2) so that our internal applications can send email through google apps (which requires authentication). The thing is that the server was being used to send spam. We fixed the problem by only allowing the server to relay email from our internal IP address range (10.0.0.0/16). My concern is that there was a way by which external IPs connected to the network and that underlying problem has not been fixed, but I cannot imagine how these machines connected. Any thoughts?

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Do virtual machines perform better on the host HDD or USB drive?

- by Jeremy Ricketts

The question I'm asking is kind of general, and I'll give more specifics about my specific setup. Here's the main question though: Do virtual machines generally perform better on the host HDD or is it better to operate them from an external disk? My specific setup: A Macbook Pro with a nearly full internal SATA drive that spins at 7200. On this system I'm running large programs like Photoshop and some other RAM-intense applications. I've dedicated 2 of my 8 gigs of RAM to my VMware Fusion virtual machine, which runs Windows 7 and Visual Studio, sits on the same drive. When that thing boots up, my system really starts crawling. I have an external USB (specifics of that drive are here) which I'm thinking about moving the VM to. Obviously a USB drive is slower than my internal HDD, but maybe having two operating systems using the same disk is WORSE than putting one of them on a separate (albiet slower) disk. This a bad idea?

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Why is Nginx ignoring the access_log directive when post_action is specified?

- by Chris

Hi, in the location below nginx writes a custom download log. Everything works fine except when there is a post_action directive. I seems that nginx skips the access_log directive. Here is the config: location /download_intern/ { internal; if ($uri ~* ^/download_intern/([0-9]+)/) { set $transferID $1; set $server $arg_ip; set $url $arg_url; proxy_pass http://$server:80/$url; break; } log_format download '$remote_addr [$time_local] $upstream_cache_status "$scheme://$host$request_uri" $status [$transferID] $body_bytes_sent'; access_log /opt/nginx/logs/server.download_log download; # without this line the download log file is being written post_action /done; } location /done { internal; # log the transfer on the main server proxy_pass http://xxx.xxx.xxx.xxx:80/download_end/?tid=$transferID; }

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Sendmail.mc: alias all incoming e-mails to one account

- by Angus

I need to alias all mail coming from another SMTP server to this one account "myinbox". The system in question is to receive all e-mail on the domain, if that's any help. http://william.shallum.net/random-notes/sendmailredirectallmailfordevelopment is a template for the beginning of a solution, but that routes everything (including outgoing and internal mail) to that one account, and trying to understand how these R rules work is making my head spin. I think the answer is in sendmail.mc rather than any Procmail configuration. So I think what I generally don't want the filter to do is: Interfere w/any outgoing e-mail Interfere w/any internal e-mail Sometimes some cron job causes "root" to mail to "root". I don't want these to go to myinbox. Cause infinite loops Who does? Bounce messages and any DSNs come to mind. I'm running Sendmail 8.13.1 and Procmail 3.22.

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Putting a Windows DC, Exchange in a DMZ

- by blsub6

I have one guy at my company telling me that I should put FF:TMG in between my main Internet-facing firewall (Cisco 5510) and put my Exchange server and DC on the internal network. I have another guy telling me that I should put the Exchange server and DC in a DMZ I don't particularly like the idea of having my mailboxes and DC's usernames/passwords in a DMZ and I think that Windows authentication would require me opening up so many ports between my DMZ and my internal network that it would be a moot point to have it out there anyways. What are some thoughts? How do you have it set up?

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ASA 5505 8.4 open ports for subnet

- by fwrawx

I have an ASA 5505 running 8.4 with its outside interface plugged into our internal network. I want to open up access to hosts on one of the vlans behind that ASA to hosts on our internal network. I was just starting to grasp NAT on our older PIX but the ASA 8.4 has me confused now. Given a clean ASA with an outside vlan of 10.0.0.1/24 and test vlan of 10.0.1.1/24 what's the basic configuration needed to allow any hosts on the outside network to have access to any of the hosts on the test network?

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Win server 2008 change port of RD Gateway

- by Mel

Is it possible to change the port used by RD Gateway. I know its integrated with IIS and it uses port 443 (SSL) so i've changed my IIS bindings to use a different port for SSL communications. however, I can't find any way to specify the RD gateway port in the RD client. Has anyone ever done this before? Reason I'm asking is, my ISP just recently blocked port 80 and 443 so I am forced to use another port.

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What is the simplest way to confirm or to disprove that Virtual Box virtual machines support GRE protocol

- by mbaitoff

It is stated in VirtualBox manual (chapter 6) that VM network interfaces in "NAT" mode do not support GRE protocol. I'm currently trying to setup a pair of VMs as pptp server and client which would communicate via VM's network interfaces in "INTERNAL NETWORK" mode. I set up modern Linux OSes with pptp software on both machines and made some basic pptp configuration. However, I fail to connect the client to the server - server reports a failure when writing to GRE socket. I now need a quick proof of principal ability to use the GRE protocol between VirtualBox VMs over a network in "INTERNAL" mode, such as a several-line .c program that would try to open/send/receive/close a GRE protocol connection, or like a specific lightweight tool to diagnose the GRE availability. Any suggestions?

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Exchange 2007 - One server set-up

- by devviedev

I'm trying to set up Exchange 2007 with just one server (not the Transport + Hub configuration, just a Hub). I installed the server with the Hub Role, and it's not accepting SMTP. I changed SMTP so that it relays all emails (it's just an internal server for only internal mails). When I send to username@mydomain in OCW, it works fine. When I send to the same email address via SMTP, it goes to the badmail folder. What did I miss in the Hub set-up?

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Amazon EC2 - Unable to connect to MySQL

- by alexus

I'm having issue connecting from one VM to another # nmap -p3306 ip-XX-XX-XX-XX.ec2.internal Starting Nmap 6.40 ( http://nmap.org ) at 2014-06-10 17:50 EDT Nmap scan report for ip-XX-XX-XX-XX.ec2.internal (XX.XX.XX.XX) Host is up (0.000033s latency). PORT STATE SERVICE 3306/tcp closed mysql Nmap done: 1 IP address (1 host up) scanned in 1.05 seconds # in my Security Group I allowed Inbound connectivity via port TCP, portrange 3306 and Source 0.0.0.0/0, so theoratically it should work, but in reality it doesn't( I'm running red hat enterprise linux 7 on both VMs. mariadb.service running fine on another VM and I am able to connect to it locally. DB's: # netstat -anp | grep 3306 tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 2324/mysqld # 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 # Any ideas what else I missed?

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How to forward connection from one interface to another under linux

- by Daniel

Hi, I have linux box which has two network interface, eth0, eth1. from eth1 I can access an internal website, say under port 8080. from outside the box, I can't access that network. my question is, is there a way I set up something so from outside the box, there appears to be a web server running in port 8080 and when I connect to it, it automatically forwards to eht1 the internal site? I tried to enable ip forward and add a static route, but it doesn't work. thanks.

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PHPMyAdmin - Error 500

- by christian.thomas

Have scoured the board but can't seem to find anything that's helped yet. If I go to http://localhost/ it's fine, if I go to http://localhost/phpmyadmin I get an 'Error 500: Internal Server Error' There doesn't seem to be anything that'll show up in the log files either. I've tried the RewriteLog as mentioned in PHPMyAdmin 500 Internal Server Error - But that doesn't really seem to help either, nothing gets written to it when I've got: # Logfiles ErrorLog /home/www/beta.**.com/logs/error.log CustomLog /home/www/beta.**.com/logs/access.log combined RewriteLog /home/www/beta.**.com/logs/rewrite.log RewriteLogLevel 9 I've tried uninstalling the package and re-installing it, but that's not helped either. Anyone got any other suggestions? I'm running Debian and Apache 2.

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Multiple IP Addresses on a Traceroute Line

- by Paul

I'm doing a traceroute from my box to ....say.... stackoverflow.com. I see a couple of instances where there are multiple ip's on one line. For instance, in below, line #2 has two IPs: 10.1.6.5 and 10.1.4.5 Also on line #4, there are two timestamps after 216.182.236.96: 0.653 ms and 0.637 ms What are these? This is on Linux Traceroute example: traceroute to www.stackoverflow.com (198.252.206.16), 30 hops max, 60 byte packets 2 ip-10-1-6-5.us-west-1.compute.internal (10.1.6.5) 0.329 ms 0.425 ms ip-10-1-4-5.us-west-1.compute.internal (10.1.4.5) 0.471 ms 4 216.182.236.104 (216.182.236.104) 0.554 ms 216.182.236.96 (216.182.236.96) 0.653 ms 0.637 ms 5 205.251.230.64 (205.251.230.64) 0.616 ms 205.251.229.232 (205.251.229.232) 1.305 ms 205.251.230.64 (205.251.230.64) 0.573 ms

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How to Configure Source NAT (Private IP => Public IP Outbound)

- by DavidScherer

I'm running VMWare ESXi Free and have Zentyal SBS 3.2 running as a Gateway. I have 5 Public IPS (CIDR/29, let's call them 69.1.1.1 - 69.1.1.5) and currently Zentyal is bound to 69.1.1.1 as the Gateway, with the other 4 Public IPs set as Virtual Interfaces in Zentyal (wan2-wan5) I have machines sitting on the Private Network (10.34.251.x) that, when going Outbound (to Google for instance) should be seen by the Internet as an IP other than the Gateway (69.1.1.1), this is because our machines need to be able to communicate with 3rd party APIs that expect these requests to come from a specific IP. From what I could find, SNAT (Source NAT) in Zentyal is used to achieve this, but I'm not sure how to configure it and cannot find a specific piece of Documentation for it at Zentyal. I've tried setting this up a couple different ways, with no results and at this point I have no idea if I'm going about this completely wrong, or my lack of experience with networking and the associated terminology is preventing me from placing the correct values in the correct fields. I get the following form to set up "SNAT" rules in Zentyal: Perhaps someone can offer some guidance and definitions for the fields above? SNAT Address Is this the Public IP I want to masquerade? Outgoing Interface Should this by my External NIC (one connected to Public 'Net), or is it the "Private" interface? It sounds as though this should be the External interface as I want the traffic from the internal network sent Out over this Interface (using a different IP than normal, anyway) Source Is the the Source on the internal network (one of the private IPs?), a public IP I want to masquerade as, or something else entirely? Destination Is this a place on the Internet (eg, "Only do this for the Site Google.com"/IP) or am I allowing myself to become confused again? Service I'm assuming this allows me to restrict which services this rule will apply to, but is it for a service on the internal network or a service being accessed on the external network? If I can offer any further details or information to make what I'm trying to do more clear, I will happily do so. Honestly any kind of help here would be very appreciated. I'm not a NetOps or anything even close, I spend most of my day writing code and my entire "team" at this company consists of "me, myself, and I" so while I try to broaden my KB at every possible opportunity, I can only learn so much, so fast and I feel like with networking especially there's just so much, coupled with a learning curve for each solution that likes to (from my limited perspective) use slightly different terminology that what I'm used to (and I don't exactly have the necessary experience to cross reference this stuff with the stuff I already know in context).

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How to archive Exchange mailboxes remotely?

- by amyassin

We have an environment that is based on an Active Directory domain (running Windows Server 2003 SP2), an internal email system using Exchange Server 2003 (internal mailbox, nothing online), and the clients run a mixture of MS Outlook 2007&2010, with the majority running 2007. Recently we noticed that Exchange server is taking so much space for mailboxes. We are examining some solutions to reduce space, and it seems that we could make use of the archiving feature to archive older messages. I can set the auto-archive option manually for every individual user, but is there any other easier way to automate that task? Is there any feature in exchange server or active directory domain that enables setting that as a kind of policy or something similar, or a script to be scheduled to run by all users?

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