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• iChat can't authenticate to Lion Server 10.7.2 [migrated]

  - by glenstorey

  I've enabled iChat and iCal Server through our local 10.7.2 Server which has DNS set up correctly. I can add the server account via a client's System Preferences (under other - Mac OS X server) and it authenticates with my shortname correctly. However, when I load iChat, I get this error message: Where the account is [email protected]. The password and username is correct. Console throws this error: 22/11/11 3:03:31.135 PM imagent: [Warning] XMPPConnection: Error: Error Domain=XMPPErrorDomain Code=105 "The operation couldn?t be completed. (XMPPErrorDomain error 105.)" UserInfo=0x7f81bbe2a3e0 {XMPPErrorText=service requested for unknown domain} DNS is set up correctly (it's working for Profile Management, Software Update Server and Web Services) but I can't get iChat to work correctly. How can I get clients to authenticate? FYI: It's probably worth noting that I get the exact same error messages when I use [email protected] instead of [email protected]. Also posted this question on Apple Discussion here.

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• Loggon to Internet Hotspot from within Linux Terminal

  - by Saif Bechan

  For internet I use a local Hotspot service. I have internet when I start my browser and fill in my username and password. This stays as long as I do not shut down my PC for a while. I run some virtual machines, centos, debian, from the command line. I run these just for small test purposes, nothing special, and security is not an issue for me at all. I want to have these VM's connect directly to the hotspot if this is possible. So they each have there own IP. I have enough hotspot accounts to do so. I can do this with a bridged connection in VMware which works find with a GUI. But I run these OS's from the command line. I only need to know a way how to get the hotspot to validate my credentials. Is there a way of doing this without having a gui.

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• Truecrypt or default Disk Utility on Mac?

  - by Kaushik Gopal

  Windows by default doesn't come with a password protect folder option (other that Win7 ultimate), so I used to swear by Truecrypt which was great. But I've read in a couple of places that Mac OS X by default has a way of protecting folders using the Default Disk Utility. So my question is which is better, using TrueCrypt on the Mac or just sticking with the default Disk Utils app? Can somebody let me know the advantages of one over the other? A summary from the very helpful answers below: if you're looking for cross-platform usage Truecrypt is the obvious tool of choice if you're looking for convenience, and intend to stick only to the Mac platform, use the default Disk Utils app.

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• Using Apache / Kerberos / Keytab to Authenticate Redmine Users Against Active Directory

  - by David Kaczynski

  Please bare with me, as I am still fresh to these technologies. We have a Debian (squeeze) server to which I have root access. It is running Apache, and Redmine is deployed to the server (currently using a local MySQL database for authentication). Apache is configured to use Kerberos and a keytab file to authenticate users against Active Directory. With the current configuration, as soon as a user attempts to access anything over https, the user is prompted for a username / password, which is successfully authenticated against Active Directory. I understand (somewhat) that Redmine has its own LDAP configuration that can be used to authenticate users against an existing Active Directory, but this would require the user to enter their credentials one time for Apache and then a second time for Redmine. I am wondering, Can I somehow configure Redmine to share the Apache authentication method as opposed to requiring the user to enter their credentials a second time? (Using Apache to authenticate against Active Directory is a requirement for a separate application on the server)

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• How secure is the encryption used by Microsoft Office 2007?

  - by ericl42

  I've read various articles about Microsoft's Office 2007 encryption and from what I gather 2007 is secure using all default options due to it using AES, and 2000 and 2003 can be configured secure by changing the default algorithm to AES. I was wondering if anyone else has read any other articles or know of any specific vulnerabilities involved with how they implement the encryption. I would like to be able to tell users that they can use this to send semi-sensitive documents as long as they use AES and a strong password. Thanks for the information.

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• To Do list for multiple users using MySQL, Need some advice regarding Projectwork?

  - by Steve

  i am thinking to create a To Do list sort of thing for my Project work. it's sort of a To do list type thing, meant for Multiple Users. i mean each user will have his Login and Password , to access into his account or profile and from there he/she can Manage his own To-Do list. it's has to be Kind of like Remember the Milk sort of. Every user will have his own To Do list. i mean now as Different users will have Different To Dos to perform and so different To Dos Lists, if for data fields like in tabular form. Task || Priority || Deadline || Number of days required ||Status. -----||----------||----------||-------------------------||-------------------- -----||----------||----------||-------------------------||-------------------- -----||----------||----------||-------------------------||-------------------- So what i meant to ask , Can this type of thing be done using MySQL as database and and any web based server side language PHP, ASP, JSP. i mean Can this be done through RDBMS like MySQL, for here different member users will have different to do lists than each others to keep and maintain.

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• Permissions for Scheduled Tasks on a Domain Controller

  - by silmaril8n

  I'm trying to run a Scheduled Task on a 2008 R2 Domain Controller and all was well until I set it into the production environment. I'm running the task as a Domain User that's defined in the "Log on as a batch job" setting. For giggles I also added the account to "Allow log on locally" after the former failed. When I'm prompted for the password after setting up the task I receive the error: "An error has occurred for the task ########. Error message: The following error was reported: Logon failure: the user has not been granted the requested logon type at this computer.." I'm thinking that because this a DC that maybe it needs something else?

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• Big mail issue two ip address

  - by Luka

  I have two ip addresses on my server, First IP is assigned to my clients, second is assigned to me. Issue started today. My clients can not send mail via php from their ip address (shared ip address which are all of them using). Server is refusing it with error ERROR: Password not accepted from server: 535 Incorrect authentication data But via their desktop mail clients it can send mail, when they use my ip address for hostname (second ip of server assigned to me) they can send mail. help.

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• active directory servers synchronization

  - by Mit Naik

  I have 3 AD servers with windows server 2008 R2 at 3 different places, main server is at datacenter and 2 are in our local office which are at 2 different place. I want to synchornize all the 3 server together, were datacenter server should be central server and rest 2 servers should synch with the datacenter server. Please provide us the steps or tutorial to do this. Also we want that once the changes are done in 1 of the AD server the changes are automatically done in all the servers. For example if I change the password of user in our local server it should be updated in our main AD server and other branch server too. Please provide us the steps or tutorial to do this asap. I have one more question I have already created main datacenter AD as domain.local and other domains as xyz.local and abc.local, how can I replicate the additional AD domains with main datacenter DC, also do we require VPN connection, is there any other way to replicate the servers without using VPN connection?

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• Exim 4.63 on CentOS: sending mail from server app through localhost - failed on authentication

  - by Stas

  Hi! I am trying to send mail from my java application simply connecting on localhost:25 with empty login and password (I have to state them due to API). Mail sending is failed then with 2010-03-21 12:20:01 login authenticator failed for localhost [127.0.0.1]: 535 Incorrect authentication data On the other hand, when I am sending mail with telnet by: $ telnet localhost 25 ehlo ... mail from:... rcpt to:... data: ... it works perfectly. Any clues?

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• Restricted blogspot account. Unable to subscribe using Google Reader?

  - by keisimone

  I used blogspot.com and restricted its viewership to just its authors. However I cannot use Google Reader to subscribe to the RSS feed. Is there a workaround? I need to be notified somehow whenever somebody posts to that private blog. I am one of its authors. My blogspot.com allows me to set the readership to just its authors. So that is what I have done. I did not do any password protect settings at all.

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• Filezilla FTP Server - Security Implications of its usage on Windos Server 2003

  - by Brian Webster

  I'm running Filezilla server on my dedicated windows 2003 server. It uses its own user-access control system. The Filezilla server service itself is running under the System user. When I setup users within the FTP Server Administrator Interface, I do not need to setup equivalent users, or adjust permissions on folders to allow users to login. Example: I setup TestFTP user with password 'p' I set the home directoy of TestFTP user to be e:/website I verify that e:/website only has permission for the System and Admin accounts (right click - security in windows explorer) TestFTP is able to login to the server just fine. I'm OK with this (perhaps due to ignorance?). Is it generally frounded upon to utilize a FTP Server such as FileZilla Server that bypasses the built-in UAC in this method? If I wasn't clear enough, please let me know.

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• How do you set the Scheduled Tasks "Run only if logged in" option from the command line?

  - by Paul K

  I want to create some tasks with the "Run only if logged in" option set, but using a batch file, as you can in the user interface version of the schtasks.exe tool. I'm doing this so I don't have to specify a password, either in the batch file, or when the batch file is run... I would use /ru System but I can't because the tool I'm automating (SyncToy 2.1) won't run with that account because I am hitting a network drive... Also, I noticed that Google Chrome sets up some tasks with this option set during installation, so I'm thinking there must be a way...

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• What does it mean to setup Postfix as "SMTP only"? [closed]

  - by BryanWheelock

  Possible Duplicate: What does it mean to setup Postfix as “SMTP only”? I am trying to setup Postfix a few different domains on a virtual host. I need to have email setup just to send out registration confirmations and new password requests. No one will have a mailbox on this server. It seems this means that I want to setup Postfix as SMTP only. I've also read about configuring Postfix null clients for simular needs. What is the difference between Postfix null client and SMTP only?

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• How to setup Secure SemiPublic Revision Control System

  - by user24912

  I have a windows server with a project configured with a revision control system. Suppose it's GIT or SVN or .... Suppose there are 10 people around the globe working on this project. The first thing that comes in to mind is to secure the connection between these programmer and the server with SSH. but my problem is that the a hacker can destroy the server if he gets the SSH username and password user account (tell me if i'm wrong). So I need a secure way to let thoes programmers push their revision to the server. Any ideas would be lovely

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• Granting rights to the sa account using osql

  - by Jan Jongboom

  I'm installing sql instances through script, and after creating a certain instance, I cannot get the sa account to be enabled through osql. What I've tried osql -S .\INSTANCENAME -E use master ALTER LOGIN sa ENABLE GO Using SSMS to enable the account (by logging in using Windows Auth., 'New query', and exactly the same query as in 1.) Suggestions in this issue No. 2. is actually working; and the account is enabled instantly. No 1 is not working, not even with the suggestions provided in 3., I have restarted the SQL services after executing the commands in osql. Additional info Windows 2003 Server, Microsoft SQL Server 2005 Enterprise, No password policies apply to the account.

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• Security question pertaining web application deployment

  - by orokusaki

  I am about to deploy a web application (in a couple months) with the following set-up (perhaps anyways): Ubuntu Lucid Lynx with: IP Tables firewall (white-list style with only 3 ports open) Custom SSH port (like 31847 or something) No "root" SSH access Long, random username (not just "admin" or something) with a long password (65 chars) PostgreSQL which only listens to localhost 256 bit SSL Cert Reverse proxy from NGINX to my application server (UWSGI) Assume that my colo is secure (Physical access isn't my concern for the time being) Application-level security (SQL injection, XSS, Directory Traversal, CSRF, etc) Perhaps IP masquerading (but I don't really understand this yet) Does this sound like a secure setup? I hear about people's web apps getting hacked all the time, and part of me thinks, "maybe they're just neglecting something", but the other part of me thinks, "maybe there's nothing you can do to protect your server, and those things are just measures to make it a little harder for script kiddies to get in". If I told you all of this, gave you my IP address, and told you what ports were available, would it be possible for you to get in (assuming you have a penetration testing tool), or is this really protected well.

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• Installing GitBlit GO as Service in Ubuntu Server 14.04

  - by Luis Masuelli

  I downloaded it (version 1.6.0), unpacked it in /opt/gitblit (ubuntu server 14.04.1), configured http to 8280 and disabled https assigning 0 (I expose it by https using nginx). I created gitblit user and added it to 'sudo' group by running: sudo adduser gitblit sudo (gitblit user has a strong password). I installed it as a service by running: /opt/gitblit/install-service-ubuntu.sh. I tried to start it by running: sudo service gitblit start. The message Starting gitblit server appears. It's the only message. When I hit -in the same local machine- http://127.0.0.1:8280, the connection could not be made. When I run sudo netstat -anp | grep 8280, nothing appears. I see no error messages, but the server is not starting. Question: What am I missing?

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• Aruba Wireless Controller 200 and AP70 manual

  - by techie

  I have an Aruba wireless system that is currently in use but there is no documentation from the previous person in charge. I have no manuals or login information for the wireless controllers and APs. I checked the Aruba website and you need to register to access the support information but registration isn't instant and takes several days. I've waited for quite a while now and have tried googling and checking the Aruba forums but have found no indication of a manual. What I really need is the ability to reset the controller and APs so I can access the device with the default username and password. There is no reset button on this device so I have no idea how you go about resetting the controller and APs. Hm it seems I can't create a new tag as a new user. If possible can someone add an "Aruba" tag?

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• vncserver too many security failures

  - by cf16

  I try to connect to my vncserver running on CentOs from home computer, behind firewall. I have installed Win7 and Ubuntu both on this machine. I have an error: VNC conenction failed: vncserver too many security failures even when loging with right credentials (I reset passwd on CentOs). Is it something regarding that I try as root? I think important is also that I have to login to remote Centos through port 6050 - none else port works for me. Do I have to do something with other ports? I see that vncserver is listening on 5901, 5902 if another added - and I consider connection is established because from time to time (long time) the passwd prompt appears,... right? please help, what to do? even if prompt appeared and I put correct password I get: authentication failure. how to disable this lockout for a testing purposes?

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• Troubleshooting latency spikes on ESXi NFS datastores

  - by exo_cw

  I'm experiencing fsync latencies of around five seconds on NFS datastores in ESXi, triggered by certain VMs. I suspect this might be caused by VMs using NCQ/TCQ, as this does not happen with virtual IDE drives. This can be reproduced using fsync-tester (by Ted Ts'o) and ioping. For example using a Grml live system with a 8GB disk: Linux 2.6.33-grml64: root@dynip211 /mnt/sda # ./fsync-tester fsync time: 5.0391 fsync time: 5.0438 fsync time: 5.0300 fsync time: 0.0231 fsync time: 0.0243 fsync time: 5.0382 fsync time: 5.0400 [... goes on like this ...] That is 5 seconds, not milliseconds. This is even creating IO-latencies on a different VM running on the same host and datastore: root@grml /mnt/sda/ioping-0.5 # ./ioping -i 0.3 -p 20 . 4096 bytes from . (reiserfs /dev/sda): request=1 time=7.2 ms 4096 bytes from . (reiserfs /dev/sda): request=2 time=0.9 ms 4096 bytes from . (reiserfs /dev/sda): request=3 time=0.9 ms 4096 bytes from . (reiserfs /dev/sda): request=4 time=0.9 ms 4096 bytes from . (reiserfs /dev/sda): request=5 time=4809.0 ms 4096 bytes from . (reiserfs /dev/sda): request=6 time=1.0 ms 4096 bytes from . (reiserfs /dev/sda): request=7 time=1.2 ms 4096 bytes from . (reiserfs /dev/sda): request=8 time=1.1 ms 4096 bytes from . (reiserfs /dev/sda): request=9 time=1.3 ms 4096 bytes from . (reiserfs /dev/sda): request=10 time=1.2 ms 4096 bytes from . (reiserfs /dev/sda): request=11 time=1.0 ms 4096 bytes from . (reiserfs /dev/sda): request=12 time=4950.0 ms When I move the first VM to local storage it looks perfectly normal: root@dynip211 /mnt/sda # ./fsync-tester fsync time: 0.0191 fsync time: 0.0201 fsync time: 0.0203 fsync time: 0.0206 fsync time: 0.0192 fsync time: 0.0231 fsync time: 0.0201 [... tried that for one hour: no spike ...] Things I've tried that made no difference: Tested several ESXi Builds: 381591, 348481, 260247 Tested on different hardware, different Intel and AMD boxes Tested with different NFS servers, all show the same behavior: OpenIndiana b147 (ZFS sync always or disabled: no difference) OpenIndiana b148 (ZFS sync always or disabled: no difference) Linux 2.6.32 (sync or async: no difference) It makes no difference if the NFS server is on the same machine (as a virtual storage appliance) or on a different host Guest OS tested, showing problems: Windows 7 64 Bit (using CrystalDiskMark, latency spikes happen mostly during preparing phase) Linux 2.6.32 (fsync-tester + ioping) Linux 2.6.38 (fsync-tester + ioping) I could not reproduce this problem on Linux 2.6.18 VMs. Another workaround is to use virtual IDE disks (vs SCSI/SAS), but that is limiting performance and the number of drives per VM. Update 2011-06-30: The latency spikes seem to happen more often if the application writes in multiple small blocks before fsync. For example fsync-tester does this (strace output): pwrite(3, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"..., 1048576, 0) = 1048576 fsync(3) = 0 ioping does this while preparing the file: [lots of pwrites] pwrite(3, "********************************"..., 4096, 1036288) = 4096 pwrite(3, "********************************"..., 4096, 1040384) = 4096 pwrite(3, "********************************"..., 4096, 1044480) = 4096 fsync(3) = 0 The setup phase of ioping almost always hangs, while fsync-tester sometimes works fine. Is someone capable of updating fsync-tester to write multiple small blocks? My C skills suck ;) Update 2011-07-02: This problem does not occur with iSCSI. I tried this with the OpenIndiana COMSTAR iSCSI server. But iSCSI does not give you easy access to the VMDK files so you can move them between hosts with snapshots and rsync. Update 2011-07-06: This is part of a wireshark capture, captured by a third VM on the same vSwitch. This all happens on the same host, no physical network involved. I've started ioping around time 20. There were no packets sent until the five second delay was over: No. Time Source Destination Protocol Info 1082 16.164096 192.168.250.10 192.168.250.20 NFS V3 WRITE Call (Reply In 1085), FH:0x3eb56466 Offset:0 Len:84 FILE_SYNC 1083 16.164112 192.168.250.10 192.168.250.20 NFS V3 WRITE Call (Reply In 1086), FH:0x3eb56f66 Offset:0 Len:84 FILE_SYNC 1084 16.166060 192.168.250.20 192.168.250.10 TCP nfs > iclcnet-locate [ACK] Seq=445 Ack=1057 Win=32806 Len=0 TSV=432016 TSER=769110 1085 16.167678 192.168.250.20 192.168.250.10 NFS V3 WRITE Reply (Call In 1082) Len:84 FILE_SYNC 1086 16.168280 192.168.250.20 192.168.250.10 NFS V3 WRITE Reply (Call In 1083) Len:84 FILE_SYNC 1087 16.168417 192.168.250.10 192.168.250.20 TCP iclcnet-locate > nfs [ACK] Seq=1057 Ack=773 Win=4163 Len=0 TSV=769110 TSER=432016 1088 23.163028 192.168.250.10 192.168.250.20 NFS V3 GETATTR Call (Reply In 1089), FH:0x0bb04963 1089 23.164541 192.168.250.20 192.168.250.10 NFS V3 GETATTR Reply (Call In 1088) Directory mode:0777 uid:0 gid:0 1090 23.274252 192.168.250.10 192.168.250.20 TCP iclcnet-locate > nfs [ACK] Seq=1185 Ack=889 Win=4163 Len=0 TSV=769821 TSER=432716 1091 24.924188 192.168.250.10 192.168.250.20 RPC Continuation 1092 24.924210 192.168.250.10 192.168.250.20 RPC Continuation 1093 24.924216 192.168.250.10 192.168.250.20 RPC Continuation 1094 24.924225 192.168.250.10 192.168.250.20 RPC Continuation 1095 24.924555 192.168.250.20 192.168.250.10 TCP nfs > iclcnet_svinfo [ACK] Seq=6893 Ack=1118613 Win=32625 Len=0 TSV=432892 TSER=769986 1096 24.924626 192.168.250.10 192.168.250.20 RPC Continuation 1097 24.924635 192.168.250.10 192.168.250.20 RPC Continuation 1098 24.924643 192.168.250.10 192.168.250.20 RPC Continuation 1099 24.924649 192.168.250.10 192.168.250.20 RPC Continuation 1100 24.924653 192.168.250.10 192.168.250.20 RPC Continuation 2nd Update 2011-07-06: There seems to be some influence from TCP window sizes. I was not able to reproduce this problem using FreeNAS (based on FreeBSD) as a NFS server. The wireshark captures showed TCP window updates to 29127 bytes in regular intervals. I did not see them with OpenIndiana, which uses larger window sizes by default. I can no longer reproduce this problem if I set the following options in OpenIndiana and restart the NFS server: ndd -set /dev/tcp tcp_recv_hiwat 8192 # default is 128000 ndd -set /dev/tcp tcp_max_buf 1048575 # default is 1048576 But this kills performance: Writing from /dev/zero to a file with dd_rescue goes from 170MB/s to 80MB/s. Update 2011-07-07: I've uploaded this tcpdump capture (can be analyzed with wireshark). In this case 192.168.250.2 is the NFS server (OpenIndiana b148) and 192.168.250.10 is the ESXi host. Things I've tested during this capture: Started "ioping -w 5 -i 0.2 ." at time 30, 5 second hang in setup, completed at time 40. Started "ioping -w 5 -i 0.2 ." at time 60, 5 second hang in setup, completed at time 70. Started "fsync-tester" at time 90, with the following output, stopped at time 120: fsync time: 0.0248 fsync time: 5.0197 fsync time: 5.0287 fsync time: 5.0242 fsync time: 5.0225 fsync time: 0.0209 2nd Update 2011-07-07: Tested another NFS server VM, this time NexentaStor 3.0.5 community edition: Shows the same problems. Update 2011-07-31: I can also reproduce this problem on the new ESXi build 4.1.0.433742.

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• ssh port forwarding / security risk

  - by jcooper

  Hi there, I want to access a web application running on a web server behind my office firewall from an external machine. We have a bastion host running sshd that is accessible from the Internet. I want to know if this solution is a bad idea: Create an account on the bastion host with shell=/bin/false and no password ('testuser') Create a ssh RSA key on the external machine Add the public RSA key to the testuser's authorized_keys file ssh to the bastion host from the external host using: ssh -N 8888:targethost:80 run my tests from the external host shut down the ssh tunnel I understand that if my RSA private key were compromised then someone could ssh to the bastion host. But are there other reasons this solution is a bad idea? thank you!

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• How can I auto-connect to a WPA2 Enterprise network?

  - by Demetri

  I would like my computer to automatically connect to a WPA2-Enterprise network as soon as it boots whenever the network is available, without any action needed by me. The computer already offers to connect, and even remembers the password, but I must still hit 'Enter' to connect. Also, connection does not occur if my login is at the terminal. I would like to automatically connect every time I login, no matter how I do so, unless a more preferred network is available. What is the best way to do this? I am running Fedora 19. A shell script that can be invoked at the terminal would be preferred. Connecting even if the Gnome-desktop has not launched is a must.

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• Unable to connect to mysql through JDBC connector through Tomcat or externally.

  - by iftrue

  I've installed a stock mysql 5.5 installation, and while I can connect to the mysql service via the mysql command, and the service seems to be running, I cannot connect to it through spring+tomcat or from an external jdbc connector. I'm using the following URL: jdbc:mysql://myserver.com:myport/mydb with proper username/password, but I receive the following message: server.com: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. the driver has not received any packets from the server. and tomcat throws: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) Which seems to be the same issue as if I try to connect externally.

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• Enable anonymous access to report builder in reporting services 2008

  - by ilivewithian

  I have a 2008 reporting services server installed on windows 2003 server. I am trying to allow anonymous access to the report builder folder so that my users do not have to select the remember password option when they login, if they are wanting to use the report builder. All I have found so far is that I should be able to do this with the IIS manager, but that only seems to work for reporting services 2005. Reporting services 2008 does not show up in the IIS manager, enabling anonymous access seems to be hidden somewhere else. How do I enable anonymous access to report builder in reporting services 2008?

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