Bypassing proxy

Hi there, I have an old PowerMac G5 at work (running Leopard) and need to connect to an exchange server via Entourage 2008. For some reason Entourage will not use simple hostnames to access the various components of the exchange server and there is no obvious way to set it not to append the domain. Removing the domain in the account settings results in the email account authentication to fail. In Apple Mail I can simply specify the exchange server name, for example 'email', whereas doing the same in Entourage results in the server going through as 'email.domain.com'.
The workaround is to add a proxy exception in network settings to exclude *.domain.com, which works fine apart from the fact I need to be able to view www.domain.com through the proxy server, as the www is located on an offsite server.
Is there a way to express this in the bypass field of network settings, for example a 'but not' expression or similar? ie along the lines of *.domain.com<but not>www.domain.com - unfortunately the company I work for is large enough that there is no practical way to get a list of all the servers to enter them individually, there are nearly 100 individual servers.
Many thanks in advance.

...For some reason Entourage will not use simple hostnames to access the various components of the exchange server and there is no obvious way to set it not to append the domain....
You're having a problem with making Entourage work, but trying to twiddle with Mac settings. I suggested the Microsoft forums because perhaps someone has already found the answer or workaround you need. And since it is to fix an Entourage problem, and not a problem with an Apple product, it's more likely that someone would have a solution to that specific situation there.
That said, I'm going to hazard a guess that if it is possible, you'll be hand editing one of the network config files rather than going through the GUI. != type logic is not something I normally see in the OSX GUI. Perhaps someone with more *nix knowledge will post an answer.
(BTW, if your organization is so large as to have that many servers/domains, is there no one on your IT staff that supports Entourage or Mac? Just a thought.)

Similar Messages

Strange info in "Bypass Proxy Settings for These Hosts and Domains"

For my Mac Mini my Network IP Address always has a self-assigned 169.254 number that I cannot change. Strangely, this same IP number is similar to info that is in the Proxies section (of Network Settings) under "Bypass Proxy Settings for These Hosts and Domains".
No matter what I do, this info (*,local, 169.254/16) appears in my Network Settings in the Proxies section under "Bypass Proxy Settings for These Hosts and Domains". (I tried removing the info and it would cause the "Configure Proxies" selection to default to "Always Use PAC File". Had to go back and retrash all the plist files to have Proxies go back to "Configure Proxies-Manually". Still, the info (*,local, 169.254/16) continues to appear in the "Bypass Proxy Settings for These Hosts and Domains" section and my IP address is always a 169.254 number.)
Comcast cable modem via direct hardwired Ethernet works fine with my other computer, so not the modem. Also, other computer does not have any info in the "Bypass Proxy Settings for These Hosts and Domains" section.
Installed a fresh copy of OS X 11.5 on a new hard drive. Still the same problem.
I posted this issue before but only got one responder and the problem still exists. Any clues? Somebody must know about this stuff. Help please.
Thanks

When your Mac wakes up, it does not yet have an IP Addresss. It wants to send a request to a Router for an apprpriste IP address to use now. But it needs to have an IP address (like a return address) to receive any messages. So, ... wait for it,
... it (your Mac) makes one up. There are rules that ensure it is a random address, but they always start with 169.254. It is on the same subnet with any low-order 16 bits This is the "self-assigned" range of IP Addresses. This address is only good for talking on a local network segment, for things like asking for a valid IP Address from a DHCP-enabled Router.
In most cases, on most networks, the 169.254 self-assigned IP Address is replaced by a valid Local IP Address such as 192.168.xxx yyy or 10.0.xxx.yyy so quickly that you never even see the 169.254 Address.
If you do see the 169.254 Address, it can be read as "Nobody will talk to me" or "Nobody will give me an IP Address". When you have this IP Address for more than an instant, you should suspect bad cables for Ethernet connections, bad signal strength or interference for wireless, Router configuration problems, or Mac configuration problems.
Mac configuration problems are often solved by using the "Assist Me" button is System Preferences > Network and choosing to set up again.
Another diagnostic is to try using Network Utility and the Ping function, and Ping-ing the address of your Airport base Station, often 192.168.0.1 or 10.0.0.1 or similar. This will tell you if the Router is reachable, or there are cabling/wirelss signal problems.
In this case, proxies are not an issue, and are simply a distraction from the real problems.

How to know whether bypass proxy for local address is enabled in browser

Can anyone help me in finding out whether the check box "bypass proxy server for local address" in Internet explorer (Tools->Internet options->Connections->LAN Settings) is enabled from java plug in.
In my applet application if that checkbox is enabled then i have to throw a message saying that the checkbox is enabled.
Thanks in Advance
Regards
Vijay

We have been in discussions with Microsoft over the last few days on this issue - which is seen with Outlook 2007 versions onwards. Extract from resolution communication from Microsoft:
The issue you have raised is known as it has been reported and when you have a proxy set in Internet Explorer and “Bypass proxy settings for local addresses”, Outlook will attempt to connect to Office 365 directly – like the bypass rule would apply.
Because the direct connection is blocked in the Firewall, Outlook needs to have the connections going in Timeout before attempting to connect using the Proxy.
Your network trace proves the issue.
Microsoft have scheduled a fix for Outlook 2010 in February 2014 cumulative update. A fix for Outlook 2013 will also follow, but Outlook 2007 will not be addressed because it is in Extended Support.
There are two possible workarounds for this behaviour:
First, and I wouldn’t recommend it, is to allow Direct traffic through the Firewall to Office 365.
The advantage of this approach is that it will be done centralized and it will impact everyone immediately.
Information about the O365 IP addresses
There are two downsides to this behaviour:
1. First you need to maintain the Firewall exceptions as IP from O365 server can change without notice
2. Second, winhttp traffic may go through both proxy and direct and this can cause unforeseen behaviour.
The second approach is to use a proxy pac instead of manually setting in the proxy and the exceptions.
The advantage is that you will have centralized method to control how winhttp traffic goes and the issue will not be experienced anymore.
If a single pac does not be fit, you can configure proxy pac files for each site requirements and use an IIS server to store it.

Java doesn't bypass proxy for IPs using (IP-Subnet) combination ??

Dear All,
On Mac OS I am getting the below problem, I didn't tried it on Windows may be this problem may not occur there.
Problem:---
On Mac OS (Leopard).
When bypassing proxy IP in "Network Settings->Advanced...->Proxies->Bypass Hosts & Domains" field is given as IP-Subnet combination, e.g. 192.168.60/24, then in Java while trying to connect with HttpUrlConnection's connect() method, and then getting response code using HttpUrlConnection's getResponseCode() method it returns response code 407 i.e. Proxy is required. But safari works well for that,
This Java API works well when I directly give IP as 192.168.60.X it works (Java API) well.
I tried System.getProperties().setProperties("http.nonProxyHosts","192.168.60/24"), then also it doesn't works.
Please tell me any solution, suggestion or workaround or any document that tells it may not be done through Java API.

I think System.getProperties().setProperty("http.nonProxyHosts",any host name, IP with * or |) works well for Windows.
Now may be specifying the range of IPs using subnet on Mac OS (e.g.192.168.60/24) is different than on windows (e.g. 192.168.60/255.255.255.0) and therefore this fails on Mac OS. Although Java is given by Mac for its OS, but I think they didn't made any changes for this API.
Now the question is whether its a bug in Java Mac or there is some workaround present for that???
Do you have any idea that I am going right way or not??

Bypass Proxy not ignoring proxy

Hi,
I am connected to the internet through a http proxy but regularly have to connect to local IP's that do not go through the proxy.
I put the IP's of the machines I want connect to in the "Bypass proxy settings for these Hosts&Domains" section in the Proxies tab in Advanced Network Preferences however my browser still insists on trying to use the proxy.
Disabling the proxy allows me to connect to these machines but obviously this prevents me from browsing the web at the same time.
Could somebody advise me on this? Am I missing something or doing something wrong?
Thanks
Kev

I am connected to the internet through a http proxy but regularly have to connect to local IP's that do not go through the proxy.
I put the IP's of the machines I want connect to in the "Bypass proxy settings for these Hosts&Domains" section in the Proxies tab in Advanced Network Preferences however my browser still insists on trying to use the proxy.
Disabling the proxy allows me to connect to these machines but obviously this prevents me from browsing the web at the same time.
Could somebody advise me on this? Am I missing something or doing something wrong?
I would expect the Proxy settings to affect things like your browser. Are you attempting to connect to other web servers local network?
At work, I connect to local Macs using Bonjour and company systems using the company DNS names, so I put
local
companydomain.com
192.168.1/8
The 'local' is for MacComputerName.local addressing for other Macs on my local subnet, where MacComputerName is set in System Preferences -> Sharing -> Computer Name:
The 192.168.1/8 specifies a subnet to be ignored. This might be what you want to try, substituting your subnet. The /8 is because my netmask is 255.255.255.0. If you have a different netmask, you need to adjust the /n accordingly.

Bypass proxy for certain sites

ls,
Can I configure BM in such a way that it bypasses itself for certain sites?
So, rather then setting the exclusion list on every PC?
For certain sites/ip-addresses we need to go out via another gateway. I have
done this now by putting the address in the IE-bypass-proxy-exclusion-list.
But I wondered if there is a way to do this centrally, on the BM-box.
Regards,
Adrie de Regt

On 04/14/2010 09:59 AM, Adrie de Regt wrote:
> ls,
>
>
> Can I configure BM in such a way that it bypasses itself for certain sites?
> So, rather then setting the exclusion list on every PC?
>
> For certain sites/ip-addresses we need to go out via another gateway. I have
> done this now by putting the address in the IE-bypass-proxy-exclusion-list.
> But I wondered if there is a way to do this centrally, on the BM-box.
>
>
> Regards,
>
> Adrie de Regt
>
>
you can not do that on bm.
if yo do not want to add the sites to every pc, consider the use of a
proxy.pac . Tid10019233

Bypassing proxy while connecting local servers

I have a proxy server 172.22.6.26 with port 80. This is set for http, https, ftp, socks, gopher in system preferences->network->ethernet->advanced->proxies.
I am running apache server from eclipse on my macbook pro. Macbook pro ip is 172.22.4.33. When I tried to fire a request using soap ui to http://172.22.4.33:8080/service, soap ui is throwing an exception saying ConnectionTimeoutException: Connect to 172.22.6.26
I dont want soap ui to connect to my local server through the proxy server. I checked the proxy setting for soap ui and it is not enabled.
How can I bypass proxy settings when a request is made to my localserver or to another apache server running on machine in same network(172.22.4.81)?
I tried putting 172.22.4.33, 172.22.4.81 in Bypass proxy settings for these Hosts & Domains: in system preferences->network->ethernet->advanced->proxies
Can anyone please help?

Hi..Thanks for your reply.
I tried what you mentioned. But still had the same issue.
Soap UI gives error as below
Wed Jan 02 12:36:15 GMT+05:30 2013:ERROR:org.apache.http.conn.ConnectTimeoutException: Connect to 172.22.6.26 timed out

Bypass proxy for FQDN with private ip addresses

We have Windows 7 with IE 11
We need this IE behavior:
"to all FQDN names that resolves to local (private) ip addresses - do not use proxy."
how can we implement this?
("Bypass Proxy Server for Local Addresses" Option don't work as needed)

Hi,
Please take a check to see if the following KB article could help here:
Internet Explorer Uses Proxy Server for Local IP Address Even if the "Bypass Proxy Server for Local Addresses" Option Is Turned On
The cause: By default, only host names are checked when the Bypass proxy server for local addresses option is turned on.
The resolution here is :
To bypass a range of IP addresses or a specific domain name, specify the addresses in the proxy exception list:
In Internet Explorer, on the Tools menu, click Internet Options.
On the Connections tab, click LAN Settings.
Click Advanced, and type the appropriate information in the
Exceptions area.
Hope this may help
Best regards
Michael Shao
TechNet Community Support

Bypass Proxy for Local Addresses

All-
With the new 2.0 software, I am now able to connect my 3G iPhone to the WiFi network at work. The network uses an authenticated proxy to get external access. I can access external sites just fine now, but I can't see internal sites. The proxy settings on my work desktop give me the option to "bypass proxy server for local addresses".
Is there any way to do this on an iPhone?
Right now I need to make a choice between access only internal sites or only external sites.
Thanks!
MF

While not wanting to be a total weenie, ME TOO
After a bit of searching, the best we're going to be able to do right now is use a Proxy Auto-Config (.pac) file. I'm drawn to this conclusion from combining a lot of web searches with a peek at the "iPhone and iPod touch Enterprise Deployment Guide, Second Edition" (available at http://manuals.info.apple.com/enUS/Enterprise_DeploymentGuide.pdf, or via the Apple iPhone Enterprise support page at http://www.apple.com/support/iphone/enterprise/.
Setting the PAC file using the iPhone v2.x software is pretty direct - click the little arrow next to the network you want to configure, scroll down to the bottom where the proxy settings live. Choose "Auto" and enter the Auto-config URL.
That's the good news. The bad news is that I'm not entirely sure what that entails w.r.t. using one with the iPhone software. I'm not entirely clever enough to create such a file nor am I clever enough to know how to stick such a file onto my iPhone. I'm going to run this around my local team to see what they can come up with. If they come up with a solution (and it's simple enough for me to do AND explain), then I'll post a follow-up. Until then, good luck to you AND if you figure something out feel free to share with everyone else.
Ron

Bypassing proxy settings for IPv6-adresses.

My MacBook is currently connected both via IPv4 and IPv6, and I prefer using a squid-proxy when surfing. Alas, my proxy only supports IPv4.
In network preferences I can type in hosts to bypass proxy settings for, but I'd like to do this for every single IPv6 host. Any solutions?
Martin

The format should be comma-delimited, like:
<pre class=command>localhost, *.domain1.com, www.domain2.com</pre>
However, IIRC, Network Preferences is pretty tolerant - it'll accept most forms of input and will reformat it into something that makes sense to it.

Format for bypassing proxy settings

In Network Preferences, when you want to bypass proxy settings for certain domains, how do you separate the domains. are they comma separated?, or space separated?, or semi-colon separated?, one per line?.
TIA

The format should be comma-delimited, like:
<pre class=command>localhost, *.domain1.com, www.domain2.com</pre>
However, IIRC, Network Preferences is pretty tolerant - it'll accept most forms of input and will reformat it into something that makes sense to it.

Mail.app does not bypass proxy

I dont know if this is a bug or if I have done something wrong..but Mail is not able to bypass proxy for the my imap server which I have specified in the Network Preferences..If I disable the proxy, it connects to the server..but when proxy is enabled, it doesnt bypass for the domain I specify in "Bypass proxy settings for these Hosts and Domains" and gives and error..whats wrong?

I'm having the same problem;
Is there a specific format i'm supposed to enter the proxy exceptions in?
I thought that might be the problem

Bypass Proxy for Local Addresses - Office 365 connection/ Outlook 2010

This is a strange one. Connectivity to Office 365 within our netwotk works fine although very slow for outlook 2010 client to initially connect. Once connected, it works ok. I have done a netwotk trace using netmon to see if i can identify
the reason for the slow startup (2 mins minumum for profile to load and for outlook to connect to exchange). The trace tell me that my local pc tries to make a direct connection to the office365 external IPs first, then tries the TMG proxy. Once it hits the
proxy, it kicks into life and works.
So it looks to me like it thinks the external IP address of office 365 is an internal address and spends it time trying all the ip addresses until it trys the proxy. At this point, the
Bypass Proxy Server for Local Addresses is ticked.
As soon as i untick this box, all traffic heads directly to the proxy and of course it connects like lighting. The exchange settings proxy is set in outlook for "on fast networks, connect using HTTP first, then connect using TCP/IP" (tick
is on) and the same for slow networks.
I cant for the life of me work out why it tries to connect directly to the external IPs first and not connect via TMG until i untick the
Bypass Proxy Server for Local Addresses
Would love any ideas that may assist.

We have been in discussions with Microsoft over the last few days on this issue - which is seen with Outlook 2007 versions onwards. Extract from resolution communication from Microsoft:
The issue you have raised is known as it has been reported and when you have a proxy set in Internet Explorer and “Bypass proxy settings for local addresses”, Outlook will attempt to connect to Office 365 directly – like the bypass rule would apply.
Because the direct connection is blocked in the Firewall, Outlook needs to have the connections going in Timeout before attempting to connect using the Proxy.
Your network trace proves the issue.
Microsoft have scheduled a fix for Outlook 2010 in February 2014 cumulative update. A fix for Outlook 2013 will also follow, but Outlook 2007 will not be addressed because it is in Extended Support.
There are two possible workarounds for this behaviour:
First, and I wouldn’t recommend it, is to allow Direct traffic through the Firewall to Office 365.
The advantage of this approach is that it will be done centralized and it will impact everyone immediately.
Information about the O365 IP addresses
There are two downsides to this behaviour:
1. First you need to maintain the Firewall exceptions as IP from O365 server can change without notice
2. Second, winhttp traffic may go through both proxy and direct and this can cause unforeseen behaviour.
The second approach is to use a proxy pac instead of manually setting in the proxy and the exceptions.
The advantage is that you will have centralized method to control how winhttp traffic goes and the issue will not be experienced anymore.
If a single pac does not be fit, you can configure proxy pac files for each site requirements and use an IIS server to store it.

Bypass proxy?

The proxy filter I have is causing trouble with a forum site I visit frequently. I would like to bypass the proxy for that site. I understand that you can enter domains you want to bypass in Network Preferences. However, I cannot get it to work! No matter how many different ways I try typing the address, it won't bypass that site, or any site I try for that matter. Anybody know how to get it to work?
I understand that you can type in the IP address of the server too. How do you get that?

Now it's not letting me listen to any live365 radio streams. I used to be able to, so I know the problem is with the filter. But still, entering the domain in the "bypass proxy" box does not work! Why isn't it working and can I get it to work?! I'm about to tear my hair out here!

How to bypass proxy when trying to send a mail using javamail smtp

Hi,
I am trying to make a servlet send a mail using javamail smtp protocol on port 25 but i m not able to send getting an exception, i suspect proxy is blocking, so any idea anyone how bypass a proxy.

And if it does turn out that there's a proxy server blocking access to your target SMTP server, the best way to deal with that is to discuss the issue with the person responsible for your network configuration.

Bypass proxy settings ignored

Hi folks,
At work we connect to the web via web proxy (Squid by all accounts). If I set the proxy manually in my browser, everything works fine but I'd rather have that set at Network prefs level.
However, when I add *.local, 169.254/16 at Network prefs level and set Firefox (or any other browser for that matter) to use System Proxy when I call something like domain.local (setup using MAMP Pro) I get a 404 which suggests that it's not ignoring my set prefs.
Any ideas why this is happening?

I forgot to mention that, when I use Automatic Proxy Configuration, the above issue exists. But if I use "Web Proxy (HTTP)", the Bypass blank works.

Bypassing proxy

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