Joshua's questions

First instance, had a Centos 5.4 (64-bit), plenty of resources, installed Hudson (http://wiki.hudson-ci.org/display/HUDSON/Meet+Hudson) and everything was honkey-dorey. Several days or weeks later (can't remember which), the entire server would randomly freeze, requiring a hard reboot. There was nothing running on it other than the resources required for Hudson.

New gig: freshly installed Centos 5.5 (64-bit). Within a month or so, freezing has started again. No apparent reason.

We have identical servers running all over the place, serving everything from Tomcat to Jboss to basic Apache stuff, all without ever freezing or crashing.

It seems Hudson is the problem - we just can't figure out what it does differently from typical configs.

So 2 questions:

1. Any Hudson experts out there want to chime in?
2. Troubleshooting: What are the right logs to be looking at? Where might we find an entry that says "X caused the system to crash" etc.?

As stated in the title, we are experiencing 502 / bad gateway/proxy errors in the following environment: SVN over HTTPS through Apache on Windows 2008 R2. These errors occur specifically when doing copies, merge operations or branching.

As an additional note, we are using LDAP for authentication.

We've read through numerous posts with similar issues, but haven't been able to resolve our solution. This post seems similar, but the solutions given do not resolve it for us: https://stackoverflow.com/questions/2479346/502-bad-gateway-with-nginx-apache-subversion-ssl-svn-copy

Perhaps we are placing the following line of code in the wrong place? Can anyone give direction on where that should go specifically?

RequestHeader edit Destination ^https http early

I just set up a Windows Server 2008 R2 VPN that uses SSTP, and everything works wonderfully. Connection is fast, and setup is EXTREMELY simple for domain users with Vista and Windows 7.

The only problem is that ALL traffic is getting routed through the VPN connection. Folks at home or on networks outside our office network have faster Internet connections, but because they're being routed through our office connection, they are limited by that connection. Further, that means that the office connection is being shared by all users while connected.

I would like to know how to route non-office-network related traffic through the local adapters rather than on the VPN. Anyone have experience with this?

Actually several problems. Let me explain what we are trying to accomplish first:

We have a server that sits in two subnets, by having a network adapter plugged into each network. 192.168.10.x and 192.168.20.x are the subnets. The 20.x subnet in intended for external access (outside the office, our 'DMZ' of sorts), and 192.168.20.1 is the gateway to the outside world. If a user or app on the server tries to access yahoo.com, for example, it should be routed through the 20.x subnet. The 10.x subnet is internal only and traffic to outside sites should not be routed through here.

First problem is that I'm not a Linux Guru in this area.

Second problem is that with two physical adapters, OpenSUSE 10.2 seems only able to run one at a time.

Third problem, pending resolution of the Second, is actually getting OpenSUSE 10.2 to work the way we want it.

UPDATE: Here is the way we actually want this to work:

eth0 - (externally-facing adapter)
Static IP: 192.168.20.5
Default Gateway: 192.168.20.1

eth1 - (internally-facing adapter)
Static IP: 192.168.10.5
Default Gateway: should be null
Routing information:
    Destination: 192.168.10.0
    Gateway: 192.168.10.5
    Netmask: 255.255.255.0

This works fine in CentOS. We are able to access the CentOS box using the internal IP address, and it is also exposed outside on the 20. The CentOS box can also access both internal and external resources via IP and domain name. That said I realize that given my limited knowledge of Linux this may not be the best approach.

We have been able to get CentOS 5.3 working (an altogether wonderful OS, by the way). However, the GUI in OpenSUSE is not only completely different, it's also more complicated and confusing.

ANY help would be appreciated!

We have an Apache webserver (acting as a proxy) that sits in front of several servers that have different applications running on them: IIS, Tomcat, jBoss, etc. The Apache server acts as a proxy on our single static external IP address. We have multiple domain names pointing to the single IP address, and Apache reroutes / proxies requests to the correct servers.

One issue is that when proxying to the IIS6 instance, the requests are routed all right, but when the user types in the domain name example.com/home their address bar changes to 192.168.10.30/home or whatever the internal IP address for that server is. Ouch.

Another issue is that when loading pages from the same IIS6 instance, we are getting issues where some of the content on a page loads but not all. Some images get 'lost', some javascript doesn't load, etc.

Note: I'm not blaming IIS6, but it is the only box we have experienced the issues with.

Here is the VirtualHost entry in Apache that I am using. Am I missing something with the config?

<VirtualHost *:80>
    ServerName example.com
    ServerAlias www.example.com
    ProxyPass / http://192.168.10.50/
    ProxyPassReverse / http://192.168.10.50/
    ProxyPreserveHost On
</VirtualHost>

Here is the 502 proxy error that SOMETIMES appears on requests (could be any random request -- css, js, html, etc.):

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>502 Proxy Error</title>
</head><body>
<h1>Proxy Error</h1>
<p>The proxy server received an invalid response from an upstream server.<br />
The proxy server could not handle the request <em><a href="/public/example/js/jquery-1.3.2.min.js">GET&nbsp;/public/example/js/jquery-1.3.2.min.js</a></em>.<p>
Reason: <strong>Error reading from remote server</strong></p></p>
</body></html>