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  • Will there ever be a version of Java which does not perform Type Erasure

    - by user63904
    Type erasure enables Java applications that use generics to maintain binary compatibility with Java libraries and applications that were created before generics Generics were introduced in Java 1.5, so presumably the statement "applications that were created before generics" is referring to Java 1.4? Given that Java 1.4 entered its End Of Life around 2006 and was officially End Of Life'd around 2008. Why is type erasure still being performed in Java 7, etc... Has the statement now become self referential i.e. Type erasure enables Java applications that use generics to maintain binary compatibility with Java libraries and applications that were created with Java versions that perform Type Erasure. Meaning therefore that there will never be a version of Java that doesn't perform Type Erasure.

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  • JS / HTML 5 Compatablity issue on iOS 6

    - by Dhaval
    I'm using HTML 5 to play video and there are some content before the video so I'm using flexroll to scroll that whole window. I'm checking it on iPad, now problem is that in iOS 5 its working fine but when I update to iOS 6 then screen is not scrolling only video is scroll up and down, content is as it is in the position. I can't understand what is the exact problem. Is that js compatibility issue or HTML 5 video compatibility issue. Can anyone please help me to figure out, your help will really be appreciated.

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  • Multiple UIWebViewNavigationTypeBackForward not only false but make inferring the actual url impossi

    - by SG1
    I have a UIWebView and a UITextField for the url. Naturally, I want the textField to always show the current document url. This works fine for urls directly input in the field, but I also have some buttons attached to the view for reload, back, and forward. So I've added all the UIWebViewDelegate methods to my controller, so it can listen to whenever the webView navigates and change the url in the textField as needed. Here's how I'm using the shouldStartLoadWithRequest: method: - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { NSLog(@"navigated via %d", navigationType); //loads the user cares about if ( navigationType == UIWebViewNavigationTypeLinkClicked || navigationType == UIWebViewNavigationTypeBackForward ) { //URL setting [self setUrlQuietly:request.URL]; } return YES; } Now, my problem here is that an actual click will generate a single navigation of type "LinkClicked" followed by a dozen type "Other" (redirects and ad loads I assume), which gets handled correctly by the code, but a back/forward action will generate all its requests as back/forward requests. In other words, a click calls setUrlQuietly: once, but a back/forward calls it multiple times. I am trying to use this method to determine if the user actually initiated the action (and I'd like to catch page redirects too). But if the method has no way of distinguishing between an actual "back" and a "load initiated as a result of a back", how can I make this assessment? Without this, I am completely stumped as to how I can only show the actual url and not intermediate urls. Thank you!

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  • iptables : how to allow incoming ftp traffic?

    - by logansama
    Hi, Still fighting my way through the jungle that is called iptables. I have managed to allow FTP access outside of our LAN: both these would work. NOTE: eth0 is the LAN interface and eth1 is the WAN interface. iptables -t filter -A FORWARD -i eth0 -p tcp --dport 20:21 -j ACCEPT or iptables -A FORWARD -i eth0 -o eth1 -p tcp --sport 20:21 --dport 1024:65535 -j ACCEPT But when i connect to a external FTP server i manage to log in and all is fine until it wishes to List the directory content. Then nothing happens as the data is blocked, due to the fact that i do not have a rule set up to allow it! (my last rule on the FORWARD chain is to block all traffic) I have tried a gazillion rules (many of which i did not understand) to try and allow the FTP traffic back through my server. One such rule for example was: iptables -A FORWARD -i eth1 -o eth0 -p tcp --sport 20:21 --dport 1024:65535 -j ACCEPT But i cannot get the List to work. It just times out after a while. Would anyone perhaps know how to build a rule which would allow FTP to List / allow such traffic back? Or have a link to sources i could work through? Thank you,

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  • batch: replace a line in a text file

    - by sasamimasas
    I'm trying to replace this line: # forward-socks5 / 127.0.0.1:9050 . with this one: forward-socks5 / 127.0.0.1:9050 . this line belongs to a config file that has to be enabled (UN-commented) by deleting the # sign from the beginning and I could not thought of a better way other than replacing the line with another without the # sign. any other thoughts or ways would be very useful. btw, the spaces before the text are there also.I have pasted the text as it was in the original file. thanks in advance EDIT: I have somehow managed to do the line addition and removing using two peaces of code that I've found. my only problem is that the following code removes every bit of exclamation in the output file! @echo off :Variables SETLOCAL ENABLEDELAYEDEXPANSION set InputFile=config.txt set OutputFile=config-new.txt set _strFind=# forward-socks5 / 127.0.0.1:9050 . set _strInsert= forward-socks5 / 127.0.0.1:9050 . set i=0 :Replace for /f "usebackq tokens=1 delims=[]" %%A in (`find /n "%_strFind%" "%InputFile%"`) do (set _strNum=%%A) for /f "usebackq delims=" %%A in ("%InputFile%") do ( set /a i = !i! + 1 echo %%A>>"%OutputFile%" if [!i!] == [%_strNum%] (echo %_strInsert%>>"%OutputFile%") ) type %OutputFile% | findstr /i /v /c:"%_strFind%">config-new2.txt I was wondering if there is any way to do both the find/delete/add line in one step (not two steps as mine)...

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  • BizTalk: Internals: the Partner Direct Ports and the Orchestration Chains

    - by Leonid Ganeline
    Partner Direct Port is one of the BizTalk hidden gems. It opens simple ways to the several messaging patterns. This article based on the Kevin Lam’s blog article. The article is pretty detailed but it still leaves several unclear pieces. So I have created a sample and will show how it works from different perspectives. Requirements We should create an orchestration chain where the messages should be routed from the first stage to the second stage. The messages should not be modified. All messages has the same message type. Common artifacts Source code can be downloaded here. It is interesting but all orchestrations use only one port type. It is possible because all ports are one-way ports and use only one operation. I have added a B orchestration. It helps to test the sample, showing all test messages in channel. The Receive shape Filter is empty. A Receive Port (R_Shema1Direct) is a plain Direct Port. As you can see, a subscription expression of this direct port has only one part, the MessageType for our test schema: A Filer is empty but, as you know, a link from the Receive shape to the Port creates this MessageType expression. I use only one Physical Receive File port to send a message to all processes. Each orchestration outputs a Trace.WriteLine(“<Orchestration Name>”). Forward Binding This sample has three orchestrations: A_1, A_21 and A_22. A_1 is a sender, A_21 and A_22 are receivers. Here is a subscription of the A_1 orchestration: It has two parts A MessageType. The same was for the B orchestration. A ReceivePortID. There was no such parameter for the B orchestration. It was created because I have bound the orchestration port with Physical Receive File port. This binding means the PortID parameter is added to the subscription. How to set up the ports? All ports involved in the message exchange should be the same port type. It forces us to use the same operation and the same message type for the bound ports. This step as absolutely contra-intuitive. We have to choose a Partner Orchestration parameter for the sending orchestration, A_1. The first strange thing is it is not a partner orchestration we have to choose but an orchestration port. But the most strange thing is we have to choose exactly this orchestration and exactly this port.It is not a port from the partner, receive orchestrations, A_21 or A_22, but it is A_1 orchestration and S_SentFromA_1 port. Now we have to choose a Partner Orchestration parameter for the received orchestrations, A_21 and A_22. Nothing strange is here except a parameter name. We choose the port of the sender, A_1 orchestration and S_SentFromA_1 port. As you can see the Partner Orchestration parameter for the sender and receiver orchestrations is the same. Testing I dropped a test file in a file folder. There we go: A dropped file was received by B and by A_1 A_1 sent a message forward. A message was received by B, A_21, A_22 Let’s look at a context of a message sent by A_1 on the second step: A MessageType part. It is quite expected. A PartnerService, a ParnerPort, an Operation. All those parameters were set up in the Partner Orchestration parameter on both bound ports.     Now let’s see a subscription of the A_21 and A_22 orchestrations. Now it makes sense. That’s why we have chosen such a strange value for the Partner Orchestration parameter of the sending orchestration. Inverse Binding This sample has three orchestrations: A_11, A_12 and A_2. A_11 and A_12 are senders, A_2 is receiver. How to set up the ports? All ports involved in the message exchange should be the same port type. It forces us to use the same operation and the same message type for the bound ports. This step as absolutely contra-intuitive. We have to choose a Partner Orchestration parameter for a receiving orchestration, A_2. The first strange thing is it is not a partner orchestration we have to choose but an orchestration port. But the most strange thing is we have to choose exactly this orchestration and exactly this port.It is not a port from the partner, sent orchestrations, A_11 or A_12, but it is A_2 orchestration and R_SentToA_2 port. Now we have to choose a Partner Orchestration parameter for the sending orchestrations, A_11 and A_12. Nothing strange is here except a parameter name. We choose the port of the sender, A_2 orchestration and R_SentToA_2 port. Testing I dropped a test file in a file folder. There we go: A dropped file was received by B, A_11 and by A_12 A_11 and A_12 sent two messages forward. The messages were received by B, A_2 Let’s see what was a context of a message sent by A_1 on the second step: A MessageType part. It is quite expected. A PartnerService, a ParnerPort, an Operation. All those parameters were set up in the Partner Orchestration parameter on both bound ports. Here is a subscription of the A_2 orchestration. Models I had a hard time trying to explain the Partner Direct Ports in simple terms. I have finished with this model: Forward Binding Receivers know a Sender. Sender doesn’t know Receivers. Publishers know a Subscriber. Subscriber doesn’t know Publishers. 1 –> 1 1 –> M Inverse Binding Senders know a Receiver. Receiver doesn’t know Senders. Subscribers know a Publisher. Publisher doesn’t know Subscribers. 1 –> 1 M –> 1 Notes   Orchestration chain It’s worth to note, the Partner Direct Port Binding creates a chain opened from one side and closed from another. The Forward Binding: A new Receiver can be added at run-time. The Sender can not be changed without design-time changes in Receivers. The Inverse Binding: A new Sender can be added at run-time. The Receiver can not be changed without design-time changes in Senders.

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  • Outlook errors and blank address book?

    - by Chasester
    I have a user with a fresh install of Windows 7 64 bit. Office 2010 was installed also. Everything worked great until we installed Adobe Pro 9 and Wordperfect 12. (for outlook we are not using exchange). Then Outlook popped an error saying could not start Outlook. I then modified it to run in compatibility mode and Outlook starts. Then took compatibility mode off and outlook continues to start without difficulty. However, her address book went blank (contacts are all there). In the properties of the contact folder it is checked (and grayed out) to include this folder in the address book, and the Outlook address book is listed when I look at account properties. I tried creating a new profile to no avail. I tried creating a new profile and creating a new pst file - to no avail. I tried uninstalling office, removing the folders inside roaming and local, reinstalled office; got the same could not start Outlook error - did the compatibility mode bit and got it to start - but the Address book continues to be empty. Has anyone run across this before? I'm thinking that there must be some other preferences type folder other than those in Roaming and Local since her signature remained when I reinstalled Office.

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  • To HTML 5 or not HTML 5 ?

    - by ZX12R
    I am a designer whose main marketing strategy is multi browser compatibility. I assure my clients that the site will work even in IE6 (!). Of late i have been pondering over the question of moving to HTML 5. The reason behind my apprehension is that IE6 is still a major player in terms of market share and i don't want to lose it. Is there any way of moving to HTML 5 and still promise multi browser compatibility? Thank you.

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  • Run a universal app as a 'legacy' iPhone app on an iPod

    - by Paul Alexander
    I do most development testing on my iPad. When I test an iPhone app, it runs in 'compatibility' mode where the little iPhone app runs in a small window or x2 magnification. Now that I've created a universal app it runs as a native iPad app. For testing I'd like to use the simulated iPhone when I don't have an iPhone handy for testing. How can I build the project so that the iPad will run the app in compatibility mode?

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  • To HTML 5 or not to HTML 5 ?

    - by ZX12R
    I am a designer whose main marketing strategy is multi browser compatibility. I assure my clients that the site will work even in IE6 (!). Of late i have been pondering over the question of moving to HTML 5. The reason behind my apprehension is that IE6 is still a major player in terms of market share and i don't want to lose it. Is there any way of moving to HTML 5 and still promise multi browser compatibility? Thank you.

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  • what do i need to do so that mod_wsgi will find libmysqlclient.16.dylib? (osx 10.7 with apache mod_wsgi)

    - by compound eye
    I am trying to run django on osx 10.7 (lion) with apache mod_wsgi and virtualenv. My site works if I use the django testing server: (baseline)otter:hello mathew$ python manage.py runserver but it doesn't work when I run apache. The core of the error seems to be Library not loaded: libmysqlclient.16.dylib I think its to do with the path apache is using to locate libmysqlclient.16.dylib when I run otool in the lib directory it looks good otter:lib mathew$ pwd /usr/local/mysql/lib otter:lib mathew$ otool -L libmysqlclient.16.dylib libmysqlclient.16.dylib: libmysqlclient.16.dylib (compatibility version 16.0.0, current version 16.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.0.1) but from outside it can't find it otter:lib mathew$ cd / otter:/ mathew$ otool -L libmysqlclient.16.dylib otool: can't open file: libmysqlclient.16.dylib (No such file or directory) if i manually set DYLD_LIBRARY_PATH otool works otter:lib mathew$ DYLD_LIBRARY_PATH=/usr/local/mysql/lib otter:lib mathew$ otool -L libmysqlclient.16.dylib libmysqlclient.16.dylib: libmysqlclient.16.dylib (compatibility version 16.0.0, current version 16.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.0.1) When I run the django testing server, my .bash_profile sets up the virtualenv and the path to the mysql dynamic library export DYLD_LIBRARY_PATH=/usr/local/mysql/lib/:$DYLD_LIBRARY_PATH export PATH When i run apache it finds my virtualenv paths, but it doesn't seem to find the dynamic library path. I tried adding this path to /usr/sbin/envvars DYLD_LIBRARY_PATH="/usr/lib:/usr/local/mysql/lib:$DYLD_LIBRARY_PATH" export DYLD_LIBRARY_PATH and to /private/etc/paths.d/libmysql /usr/local/mysql/lib then restarted the machine but that has not changed the error message. Error loading MySQLdb module: dlopen(/usr/local/python_virtualenv/baseline/lib/python2.7/site-packages/_mysql.so, 2): Library not loaded: libmysqlclient.16.dylib I don't think is a permissions issue: -rwxr-xr-x 1 root wheel 3787328 4 Dec 2010 libmysqlclient.16.dylib drwxr-xr-x 39 root wheel 1394 18 Nov 21:07 / drwxr-xr-x@ 15 root wheel 510 24 Oct 22:10 /usr drwxrwxr-x 20 root admin 680 2 Nov 20:22 /usr/local drwxr-xr-x 20 mathew admin 680 9 Nov 21:58 /usr/local/python_virtualenv drwxr-xr-x 6 mathew admin 204 2 Nov 21:36 /usr/local/python_virtualenv/baseline drwxr-xr-x 4 mathew admin 136 2 Nov 21:26 /usr/local/python_virtualenv/baseline/lib drwxr-xr-x 52 mathew admin 1768 2 Nov 21:26 /usr/local/python_virtualenv/baseline/lib/python2.7 drwxr-xr-x 18 mathew admin 612 4 Nov 21:20 /usr/local/python_virtualenv/baseline/lib/python2.7/site-packages -rwxr-xr-x 1 mathew admin 66076 2 Nov 21:18 /usr/local/python_virtualenv/baseline/lib/python2.7/site-packages/_mysql.so What do i need to do so that mod_wsgi will find libmysqlclient.16.dylib? apache and mysql are both 64 bit: otter:lib mathew$ file /usr/sbin/httpd /usr/sbin/httpd: Mach-O universal binary with 2 architectures /usr/sbin/httpd (for architecture x86_64): Mach-O 64-bit executable x86_64 /usr/sbin/httpd (for architecture i386): Mach-O executable i386 otter:lib mathew$ otter:lib mathew$ file /usr/local/mysql/lib/libmysqlclient.16.dylib /usr/local/mysql/lib/libmysqlclient.16.dylib: Mach-O 64-bit dynamically linked shared library x86_64

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  • Can one edit an InstallShield setup.exe's manifest file?

    - by DNS
    I'm running into the Windows Vista/7 Program Compatibility Assistant problem described here: http://stackoverflow.com/questions/1069135/this-program-might-not-have-installed-correctly-message-in-windows-7-rc The solution (backed-up by similar questions elsewhere, and MSDN), is apparently to add a 'compatibility' section to setup.exe's manifest. InstallShield 10 SP1 does this automatically, but unfortunately I only have InstallShield 2009. How would I go about editing the manifest? Is there a way to do this programmatically, so I can integrate it into my build?

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  • GWT + OSX = SWT issues

    - by John Leonard
    I'm new to GWT development and I'm putting myself through the paces with Google's tutorial but I'm getting errors: java[10574:80f] [Java CocoaComponent compatibility mode]: Enabled 2009-11-06 15:27:38.769 java[10574:80f] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.100000 I checked my Java prefs and I have Java SE6 (64 bit) as the preferred JVM. I'm really not sure how to clear this up.

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  • Boost Serialization Library upgrade

    - by Konstantin
    Hello! How do I know that I can safely upgrade Boost Serialization Library on a production system without breaking compatibility with the existing data ? Is there any test that I should perform in order to be sure that all data stored in the binary format by previous version of the library will be successfully read by the new one ? Does Boost Serialization library itself guarantee some sort of compatibility between versions ?

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  • App rejected due to "iPhone Apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution"

    - by sunny
    My app got rejected by the apple because of the reason "iPhone Apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution".Apple suggested that "to support the iPad 3GS 2X, and this issue is usually resolved through settings in "compatibility" mode. "no black bar's or borders"".So,my question is how to set and run the app in compatibility mode.Any one having this issue please help on this issue.I have no idea to go forward. Please any suggestions and help thanks in advance.

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  • Focus issues in OSX Spaces

    - by AK
    Spaces rarely returns focus to my last used window. Haven't been able to peg universally reproducible steps, but spend any time switching among spaces and windows and you'll come across this. It often happens with finder windows. I'm thinking this is because osx treats Finder as a single app, so bringing finder forward in one space brings it forward in all spaces. Extremely annoying! Anyone have a fix for this?

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  • How to port Apache rewrite rules to cherokee?

    - by saint
    I'm pretty new to cherokee, it's great and pretty straight forward except URL Rewrites. Is there a straight forward guide to it? Let me know. Also how would I port this: RewriteEngine on RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php?q=$1 [L,QSA] Thanks

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  • HP to Cisco spanning tree root flapping

    - by Tim Brigham
    Per a recent question I recently configured both my HP (2x 2900) and Cisco (1x 3750) hardware to use MSTP for interoperability. I thought this was functional until I applied the change to the third device (HP switch 1 below) at which time the spanning tree root started flapping causing performance issues (5% packet loss) between my two HP switches. I'm not sure why. HP Switch 1 A4 connected to Cisco 1/0/1. HP Switch 2 B2 connected to Cisco 2/0/1. HP Switch 1 A2 connected to HP Switch 2 A1. I'd prefer the Cisco stack to act as the root. EDIT: There is one specific line - 'spanning-tree 1 path-cost 500000' in the HP switch 2 that I didn't add and was preexisting. I'm not sure if it could have the kind of impact that I'm describing. I'm more a security and monitoring guy then networking. EDIT 2: I'm starting to believe the problem lies in the fact that the value for my MST 0 instance on the Cisco is still at the default 32768. I worked up a diagram: This is based on every show command I could find for STP. I'll make this change after hours and see if it helps. Cisco 3750 Config: version 12.2 spanning-tree mode mst spanning-tree extend system-id spanning-tree mst configuration name mstp revision 1 instance 1 vlan 1, 40, 70, 100, 250 spanning-tree mst 1 priority 0 vlan internal allocation policy ascending interface TenGigabitEthernet1/1/1 switchport trunk encapsulation dot1q switchport mode trunk ! interface TenGigabitEthernet2/1/1 switchport trunk encapsulation dot1q switchport mode trunk ! interface Vlan1 no ip address ! interface Vlan100 ip address 192.168.100.253 255.255.255.0 ! Cisco 3750 show spanning tree: show spanning-tree MST0 Spanning tree enabled protocol mstp Root ID Priority 32768 Address 0004.ea84.5f80 Cost 200000 Port 53 (TenGigabitEthernet1/1/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32768 (priority 32768 sys-id-ext 0) Address a44c.11a6.7c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Te1/1/1 Root FWD 2000 128.53 P2p MST1 Spanning tree enabled protocol mstp Root ID Priority 1 Address a44c.11a6.7c80 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 1 (priority 0 sys-id-ext 1) Address a44c.11a6.7c80 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Te1/1/1 Desg FWD 2000 128.53 P2p Cisco 3750 show logging: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up HP Switch 1: ; J9049A Configuration Editor; Created on release #T.13.71 vlan 1 name "DEFAULT_VLAN" untagged 1-8,10,13-16,18-23,A1-A4 ip address 100.100.100.17 255.255.255.0 no untagged 9,11-12,17,24 exit vlan 100 name "192.168.100" untagged 9,11-12,17,24 tagged 1-8,10,13-16,18-23,A1-A4 no ip address exit vlan 21 name "Users_2" tagged 1,A1-A4 no ip address exit vlan 40 name "Cafe" tagged 1,4,7,A1-A4 no ip address exit vlan 250 name "Firewall" tagged 1,4,7,A1-A4 no ip address exit vlan 70 name "DMZ" tagged 1,4,7-8,13,A1-A4 no ip address exit spanning-tree spanning-tree config-name "mstp" spanning-tree config-revision 1 spanning-tree instance 1 vlan 1 40 70 100 250 password manager password operator HP Switch 1 show spanning tree: show spanning-tree Multiple Spanning Tree (MST) Information STP Enabled : Yes Force Version : MSTP-operation IST Mapped VLANs : 2-39,41-69,71-99,101-249,251-4094 Switch MAC Address : 0021f7-126580 Switch Priority : 32768 Max Age : 20 Max Hops : 20 Forward Delay : 15 Topology Change Count : 363,490 Time Since Last Change : 14 hours CST Root MAC Address : 0004ea-845f80 CST Root Priority : 32768 CST Root Path Cost : 200000 CST Root Port : 1 IST Regional Root MAC Address : 0021f7-126580 IST Regional Root Priority : 32768 IST Regional Root Path Cost : 0 IST Remaining Hops : 20 Root Guard Ports : TCN Guard Ports : BPDU Protected Ports : BPDU Filtered Ports : PVST Protected Ports : PVST Filtered Ports : | Prio | Designated Hello Port Type | Cost rity State | Bridge Time PtP Edge ----- --------- + --------- ---- ---------- + ------------- ---- --- ---- A1 | Auto 128 Disabled | A2 10GbE-CX4 | 2000 128 Forwarding | 0021f7-126580 2 Yes No A3 10GbE-CX4 | Auto 128 Disabled | A4 10GbE-SR | Auto 128 Disabled | HP Switch 1 Logging: I removed the date / time fields since they are inaccurate (no NTP configured on these switches) 00839 stp: MSTI 1 Root changed from 0:a44c11-a67c80 to 32768:0021f7-126580 00839 stp: MSTI 1 Root changed from 32768:0021f7-126580 to 0:a44c11-a67c80 00842 stp: MSTI 1 starved for an MSTI Msg Rx on port A4 from 0:a44c11-a67c80 00839 stp: MSTI 1 Root changed from 0:a44c11-a67c80 to 32768:0021f7-126580 00839 stp: MSTI 1 Root changed from 32768:0021f7-126580 to 0:a44c11-a67c80 00839 stp: MSTI 1 Root changed from 0:a44c11-a67c80 to ... HP Switch 2 Configuration: ; J9146A Configuration Editor; Created on release #W.14.49 vlan 1 name "DEFAULT_VLAN" untagged 1,3-17,21-24,A1-A2,B2 ip address 100.100.100.36 255.255.255.0 no untagged 2,18-20,B1 exit vlan 100 name "192.168.100" untagged 2,18-20 tagged 1,3-17,21-24,A1-A2,B1-B2 no ip address exit vlan 21 name "Users_2" tagged 1,A1-A2,B2 no ip address exit vlan 40 name "Cafe" tagged 1,13-14,16,A1-A2,B2 no ip address exit vlan 250 name "Firewall" tagged 1,13-14,16,A1-A2,B2 no ip address exit vlan 70 name "DMZ" tagged 1,13-14,16,A1-A2,B2 no ip address exit logging 192.168.100.18 spanning-tree spanning-tree 1 path-cost 500000 spanning-tree config-name "mstp" spanning-tree config-revision 1 spanning-tree instance 1 vlan 1 40 70 100 250 HP Switch 2 Spanning Tree: show spanning-tree Multiple Spanning Tree (MST) Information STP Enabled : Yes Force Version : MSTP-operation IST Mapped VLANs : 2-39,41-69,71-99,101-249,251-4094 Switch MAC Address : 0024a8-cd6000 Switch Priority : 32768 Max Age : 20 Max Hops : 20 Forward Delay : 15 Topology Change Count : 21,793 Time Since Last Change : 14 hours CST Root MAC Address : 0004ea-845f80 CST Root Priority : 32768 CST Root Path Cost : 200000 CST Root Port : A1 IST Regional Root MAC Address : 0021f7-126580 IST Regional Root Priority : 32768 IST Regional Root Path Cost : 2000 IST Remaining Hops : 19 Root Guard Ports : TCN Guard Ports : BPDU Protected Ports : BPDU Filtered Ports : PVST Protected Ports : PVST Filtered Ports : | Prio | Designated Hello Port Type | Cost rity State | Bridge Time PtP Edge ----- --------- + --------- ---- ---------- + ------------- ---- --- ---- A1 10GbE-CX4 | 2000 128 Forwarding | 0021f7-126580 2 Yes No A2 10GbE-CX4 | Auto 128 Disabled | B1 SFP+SR | 2000 128 Forwarding | 0024a8-cd6000 2 Yes No B2 | Auto 128 Disabled | HP Switch 2 Logging: I removed the date / time fields since they are inaccurate (no NTP configured on these switches) 00839 stp: CST Root changed from 32768:0021f7-126580 to 32768:0004ea-845f80 00839 stp: IST Root changed from 32768:0021f7-126580 to 32768:0024a8-cd6000 00839 stp: CST Root changed from 32768:0004ea-845f80 to 32768:0024a8-cd6000 00839 stp: CST Root changed from 32768:0024a8-cd6000 to 32768:0004ea-845f80 00839 stp: CST Root changed from 32768:0004ea-845f80 to 32768:0024a8-cd6000 00435 ports: port B1 is Blocked by STP 00839 stp: CST Root changed from 32768:0024a8-cd6000 to 32768:0021f7-126580 00839 stp: IST Root changed from 32768:0024a8-cd6000 to 32768:0021f7-126580 00839 stp: CST Root changed from 32768:0021f7-126580 to 32768:0004ea-845f80

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  • Spanning-tree setup with incompatible switches

    - by wfaulk
    I have a set of eight HP ProCurve 2910al-48G Ethernet switches at my datacenter that are set up in a star topology with no physical loops. I want to partially mesh the switches for redundancy and manage the loops with a spanning-tree protocol. However, our connection to the datacenter is provided by two uplinks, each to a Cisco 3750. The datacenter's switches are handling the redundant connection using PVST spanning-tree, which is a Cisco-proprietary spanning-tree implementation that my HP switches do not support. It appears that my switches are not participating in the datacenter's spanning-tree domain, but are blindly passing the BPDUs between the two switchports on my side, which enables the datacenter's switches to recognize the loop and put one of the uplinks into the Blocking state. This is somewhat supposition, but I can confirm that, while my switches say that both of the uplink ports are forwarding, only one is passing any real quantity of data. (I am assuming that I cannot get the datacenter to move away from PVST. I don't know that I'd want them to make that significant of a change anyway.) The datacenter has also sent me this output from their switches (which I have expurgated of any identifiable info): 3750G-1#sh spanning-tree vlan nnn VLAN0nnn Spanning tree enabled protocol ieee Root ID Priority 10 Address 00d0.0114.xxxx Cost 4 Port 5 (GigabitEthernet1/0/5) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32mmm (priority 32768 sys-id-ext nnn) Address 0018.73d3.yyyy Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Gi1/0/5 Root FWD 4 128.5 P2p Gi1/0/6 Altn BLK 4 128.6 P2p Gi1/0/8 Altn BLK 4 128.8 P2p and: 3750G-2#sh spanning-tree vlan nnn VLAN0nnn Spanning tree enabled protocol ieee Root ID Priority 10 Address 00d0.0114.xxxx Cost 4 Port 6 (GigabitEthernet1/0/6) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32mmm (priority 32768 sys-id-ext nnn) Address 000f.f71e.zzzz Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- -------------------------------- Gi1/0/1 Desg FWD 4 128.1 P2p Gi1/0/5 Altn BLK 4 128.5 P2p Gi1/0/6 Root FWD 4 128.6 P2p Gi1/0/8 Desg FWD 4 128.8 P2p The uplinks to my switches are on Gi1/0/8 on both of their switches. The uplink ports are configured with a single tagged VLAN. I am also using a number of other tagged VLANs in my switch infrastructure. And, to be clear, I am passing the tagged VLAN I'm receiving from the datacenter to other ports on other switches in my infrastructure. My question is: how do I configure my switches so that I can use a spanning tree protocol inside my switch infrastructure without breaking the datacenter's spanning tree that I cannot participate in?

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  • Making hosts accessible between LAN subnets

    - by nixnotwin
    I have two inerfaces on my router with tomato firmwre: br0 and vlan4. br0 is on 192.168.0.0/16 subnet and vlan4 on 10.0.1.0/24 subnet. As I don't want the different network services on br0 available on vlan4, I have added this firewall rule: iptables -I INPUT -i vlan4 -j ACCEPT; iptables -I FORWARD -i vlan4 -o vlan2 -m state --state NEW -j ACCEPT; iptables -I FORWARD -i br0 -o vlan4 -j DROP; vlan2 is my WAN (internet acess). The issue that I want to solve is that I want to make one host from 192.168.0.0/16 network (br0), which has ip 192.168.0.50, available on vlan4 (10.0.1.0/24). Only that host should be available on vlan4 (and all other hosts on br0 should be inaccessible). What firewall rules can be used to do it? Edit 1: Output of iptables -nvL FORWARD: Chain FORWARD (policy DROP 4 packets, 204 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all -- vlan4 192.168.0.50 0.0.0.0/0 0.0.0.0/0 0 0 ACCEPT all -- vlan4 ppp0 0.0.0.0/0 0.0.0.0/0 state NEW 229 13483 ACCEPT all -- vlan4 vlan2 0.0.0.0/0 0.0.0.0/0 state NEW 0 0 DROP all -- br0 vlan3 0.0.0.0/0 0.0.0.0/0 0 0 ACCEPT all -- vlan3 ppp0 0.0.0.0/0 0.0.0.0/0 state NEW 67 3405 ACCEPT all -- vlan3 vlan2 0.0.0.0/0 0.0.0.0/0 state NEW 0 0 ACCEPT all -- br0 br0 0.0.0.0/0 0.0.0.0/0 34 1360 DROP all -- * * 0.0.0.0/0 0.0.0.0/0 state INVALID 758 40580 TCPMSS tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU 11781 2111K restrict all -- * vlan2 0.0.0.0/0 0.0.0.0/0 26837 19M ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 wanin all -- vlan2 * 0.0.0.0/0 0.0.0.0/0 287 15927 wanout all -- * vlan2 0.0.0.0/0 0.0.0.0/0 283 15723 ACCEPT all -- br0 * 0.0.0.0/0 0.0.0.0/0 0 0 upnp all -- vlan2 * 0.0.0.0/0 0.0.0.0/0 Output of iptables -t nat -nvL PREROUTING: Chain PREROUTING (policy ACCEPT 6887 packets, 526K bytes) pkts bytes target prot opt in out source destination 855 83626 WANPREROUTING all -- * * 0.0.0.0/0 222.228.137.223 0 0 DROP all -- vlan2 * 0.0.0.0/0 192.168.0.0/16 0 0 DNAT udp -- * * 192.168.0.0/16 !192.168.0.0/16 udp dpt:53 to:192.168.0.1

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  • FTP could not connect after applying local DNS(private DNS)

    - by Rahul
    I made a software router in CentOS linux and in that made a DNS server. I am using centOS 6..4 for making DNS i applied following steps: changed the host name = abc.zoom.com and domain name = zoom.com. then did changes in the named.rfc.1912 file as per rename named.localhost = forward and named.loopback = reverse in forward lookups i changed zone "zoom.com" IN { type master; file "forward"; allow-update { none; }; and in reverse lookups i changed zone "x.168.192.in-addr.arpa" IN { type master; file "reverse"; allow-update { none; }; and then did changes in the named.conf file options { listen-on port 53 {192.168.x.x;}; listen-on-v6 port 53 { ::1; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; memstatistics-file "/var/named/data/named_mem_stats.txt"; allow-query {any;}; recursion yes; 192.168.x.x is my local DNS address. then i copied lookups file in /var/named and edited the file "forward" $TTL 1D @ IN SOA abc.zoom.com. rahul.abc.zoom.com. ( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS abc.zoom.com. abc A 192.168.x.x and for " reverse" $TTL 1D @ IN SOA abc.zoom.com. rahul.abc.zoom.com.( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS abc.zoom.com. x PTR abc.zoom.com. when i put the public ip details in the Eth0 it was automatically redirect in to the resolve.conf when i checked through dig command the answer, query all were 1. my system is itself a Software router.In gateway of my all local machine i give my system ip address. however my DNS and Gateway IP is same. Now the problem is that. i gave the static ips to all my local machines when i give the DNS which i made i.e 192.168.x.x that time my ftp is not connect in filezilla software E.g: host : pqr.zoom.com ("zoom.com" is my local domain name) username : pqr password : pqr gives an error: Error: Connection timed out Error: Could not connect to server but if i give the public DNS address it get connected. i want to solve this problem please give solution on this.

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  • Focus issues in OS X Spaces

    - by AK
    Spaces rarely returns focus to my last used window. Haven't been able to peg universally reproducible steps, but spend any time switching among spaces and windows and you'll come across this. It often happens with Finder windows. I'm thinking this is because Mac OS X treats Finder as a single app, so bringing Finder forward in one space brings it forward in all spaces. Extremely annoying! Anyone have a fix for this?

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