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  • SonicWall HA "gotchas"?

    - by Mark Henderson
    We're looking to move away from PFSense and CARP to a pair of SonicWall NSA 24001 configured in Active/Passive for High Availability. I've never dealt with SonicWall before, so is there anything I should know that their sales guy won't tell me? I'm aware that they had an issue with a lot of their devices shutting down connectivity because of a licensing fault, and they have an overtly complex management GUI (on the older devices at least), but are there any other big "gotchas" that I need to be aware of before committing a not insubstantial amount of money towards these devices? 1If you're outside the US, the SonicWall global sites suck balls. Use the US site for all your product research, and then use your local site when you're after local information.

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  • wireless router - configuring for low-latency, high traffic environment

    - by Mark C
    Hey all, I have a few questions about configuring a router to achieve low-latency, high speed throughput on a local area network that is not connected to the internet. I've read up on some stuff, but thought I would solicit some opinions here on what I've found and what I want to know.... Turn off SSID broadcast - it produces extraneous packets that all clients receive and reply (?) to. Not a huge deal, but it may help a bit. Mixed-mode off - I should attempt to have all devices using the same standard (e.g. 802.11n) and turn mixed-mode off. Any thoughts on security? Does having WEP or any of the WPA variants actually increase latency? Nothing super secure is going over this LAN so if turning security off made things better, that'd be cool. Any other thoughts or things to focus on to create the low latency environment I'm trying to go for would be great. Links to webpages and papers are also cool. I'm open to go through a bunch of stuff. Thanks in advance!

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  • Security of a free public VPN service

    - by Mark Belli
    I just started using VPNBOOK, which is a (very efficent) free VPN solution. I have a question: VPNBOOK user and pass used to connect to their vpn network are publicily available on their homepage; everybody uses them to connect to the vpn. Can a user intercept my wifi traffic and: Understand that my connections are directed to VPNBOOK servers. If point 1 is successful, then they could use VPNBOOK public user and pass to decrypt my traffic? I hope I am missing something, otherwise it would be a very big weakness and I would revert to a paid service (with a private account)

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  • SED and Unicode Quotation Marks

    - by Jonathan Patt
    When testing against this string: “… so that’s that… ” The following should, but does not, match the opening quotation mark and following ellipsis and space: sed "s/\([“‘\"']…\) /\1/g" However, this correctly matches the second ellipsis and following space and closing quotation mark: sed "s/… \([”’\"'.!?]\)/…\1/g" If I split the first apart it works fine: sed -e "s/\(“…\) /\1/g" \ -e "s/\(‘…\) /\1/g" \ -e "s/\(\"…\) /\1/g" \ -e "s/\('…\) /\1/g" So why doesn't it work when it's grouped together? Especially when it works fine with the closing quotation marks.

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  • Network interface selection

    - by Antonino
    Hello. Suppose I have more than a network interfaces and I want to selectively use them per application. eth0 is the standard interface with the standard gateway in the main routing table eth1 is another interface with a different gateway. Suppose I launch an application as a user "user_eth1". I used the following set of rules for iptables / ip rules. IPTABLES: iptables -t mangle -A OUTPUT -m user --uid-owner user_eth1 -j MARK --set-mark 100 iptables -t nat -A POSTROUTING -m user -uid-owner -o eth1 user_eth1 -j SNAT --to-source <eth_ipaddress> IPRULE: ip rule add fwmark 100 lookup table100 and i build "table100" as follows (no doubts on that) ip route show table main | grep -Ev ^default | while read ROUTE; do ip route add table table100 $ROUTE; done ip route add default via <default_gateway> table table100 It doesn't work at all. What's wrong with this? Thank you in advance!

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  • How do you determine the OWNER of an Oracle Database

    - by Kwang Mark Eleven
    When you install an Oracle database in a Unix server, the Unix user id you use for the installation becomes the OWNER of the database. What is the most reliable and general way of determining in a shell script which Unix user is the owner of an Oracle installation? I mean, can you perform a grep on a file created by the installation to find this information or shall I resort to use the ls command on a specific file on a specific directory. If the name of the file to be checked is also variable, I would need to have a way of determining the name and path to the file. Thanks in advance for your time

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  • Nexus One vs Xperia X10

    - by Mark
    Trying to decide which phone to get; I think I've narrowed it down to one of these two. The Xperia X10 seems pretty sweet except for one drawback: the phone/voice quality seems to be lacking. I haven't heard anything about the quality on the Nexus though. Otherwise they seem pretty neck and neck. What do you guys think?

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  • WinXP password messed up after reset

    - by Mark Flint
    I changed my winXP logon password - but could not get in. Obviously I made the some mistake twice... caps lock or something but couldn't get the password. So I booted into safe mode, when into Users and changed the password. Now I when I restart I can get in at logon with my new password, but the standard screensaver - which used to be the same as my user logon - now is something different. I think it's still the previous one which I couldn't get right. Now when I go into Users (not in safe mode) and try and change the password I can't. It won't accept my new user logon which works fine when logging on. I think this too is still the previous one which I couldn't get right. How can I definitely reset the password so it works at logon, in the control panel/users, and the screensaver?

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  • NTBackup (on WS2k3) fails to backup remote server (WS2k8R2) with " Error: is not a valid drive, or you do not have access."

    - by Mark A
    We run an NTBackup job on a Windows Server 2003 R2 SP2 with all updates (as of Q4-2011). It works well backing up two WS2k3 servers as well as the backup server itself. However, we have been unable to successfully back up our Windows Server 2008 R2 machine ("G5-01"). It often runs for about 2GB worth of backup and then dies out with one of the below error messages. It should be more like 20GB for the full server. We have tried using the admin share (C$), an explicitly shared drive share, UNC and mapped drives. The result is the same each time, the only thing that varies is the amount of stuff backed up before it chokes. We've also run NTBbackup from the UI interface, from the command line and as a scheduled task. We are backing up to 400/800GB tapes and they have plenty of space available on them (blank media). Error: \\G5-01\c is not a valid drive, or you do not have access. Error: \\G5-01\c$ is not a valid drive, or you do not have access. Error: Y: is not a valid drive, or you do not have access. Error: Could not access or create backup catalog files. Verify that you have full access to the working folder and there is disk space available. The job is run as Administrator and we have no problems logging onto the server and transferring files. The Event Log on the WS2k8 is not much help, as it has success audits for each login. All of the hardware involved (HP DL360 G3, HP LTO Ultrium 3, Adaptec 39320A) has the latest supported drivers. We've seemingly tried a bunch of different options but are wondering where to look next to resolve the backup issue. We've been super happy with our reliable schedule task for years but this one is stumping us!

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  • Mysql connections hanging in login state

    - by Mark Rose
    Suddenly today, I had an issue with connections to mysql hanging when connecting by IP address (e.g. mysql -h 10.1.248.20), but I could still connection using localhost fine, regardless the user. mysql> show processlist; +----+----------------------+------------------+------+---------+------+-----------------------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+----------------------+------------------+------+---------+------+-----------------------------------------------------------------------+------------------+ | 1 | system user | | NULL | Connect | 10 | Connecting to master | NULL | | 2 | system user | | NULL | Connect | 10 | Has read all relay log; waiting for the slave I/O thread to update it | NULL | | 37 | unauthenticated user | 10.1.248.3:36694 | NULL | Connect | NULL | login | NULL | | 38 | unauthenticated user | 10.1.248.3:36695 | NULL | Connect | NULL | login | NULL | | 39 | unauthenticated user | 10.1.248.3:36696 | NULL | Connect | NULL | login | NULL | | 40 | root | localhost | NULL | Query | 0 | NULL | show processlist | +----+----------------------+------------------+------+---------+------+-----------------------------------------------------------------------+------------------+ 6 rows in set (0.00 sec) Yes, I realize replication was broken in that output above; that was after I tried restart MySQL (it was an emergency). And as suddenly as things stopped working, they started working again. DNS was working fine at the time. Replication was still working. MySQL was responsive. Does anyone have any idea what would cause MySQL logins from remote IPs to hang suddenly?

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  • Super slow opening my downloads folder

    - by Mark
    I have an exe file in my download folder that I half downloaded through utorrent (it's not piracy, a legit file from people who use bittorrent to distribute large files). I think I tried to open it while it was still sharing, that is, did not stop the upload. That actually froze my computer. When I restart in utorrent I set the file to be deleted. Unfortunately even though utorrent doesn't see that file anymore, it's still visible in my download folder. Whenever I try to open my download folder it literally takes 10 minutes or more. It opens, but is empty and the blue progress bar needs a long time to complete. After completion I can use the download folder normally, but opening and closing things in that folder takes a long time. I see the exe that I tried to download. I tried to delete it. But it was taking so long 30+ minutes that I eventually just hit cancel. That doesn't even work, and it was slowing down the computer. Couldn't figure out how to stop the delete so I just pulled the plug. Should I just forget about that dl folder and set a new one? Is there something I can do? Thanks.

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  • Cannot delete links to linked tables in Access 2007 - How delete linked tables?

    - by John316
    Cannot delete links to linked tables in Access 2007 I receive the following error " is not a valid name. Make sure that it does not include invalid characters or punctuation and that it is not too long. Please note that the quotation mark is part of the error message. Read the error as: Quotation mark is not a valid name. Make sure that it does not include invalid characters or punctuation and that it is not too long. The linked table name is tblStudies. What can I do to get around this problem and be able to unlink (delete) linked tables?

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  • Is it possible to limit output bandwidth between eth0 and lo?

    - by mmcbro
    I'm trying to limit the bandwidth between my eth0 output (nginx proxy) to my loopback inteface (apache) by filtering on destination port. Incoming Packet -> Eth0 -> 0.0.0.0:80 Nginx -> tc qdisc class/iptable mangle 2525port -> 127.0.0.1:2525 Apache I don't know if it's even possible I'm just experimenting. My rules are the followings : tc qdisc add dev eth0 root handle 1:0 htb tc class add dev eth0 parent 1:0 classid 1:10 htb rate 2mbps ceil 2mbps prio 0 tc filter add dev eth0 parent 1:0 prio 0 protocol ip handle 10 fw flowid 1:10 iptables -A OUTPUT -t mangle -p tcp --dport 2525 -j MARK --set-mark 10 I also tried to with FORWARD chain but its still the same.

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  • How do you configure IIS 7 to use a subdirectory as the default document?

    - by Mark Rogers
    So I have a website running on a discount asp.net account, and I put an asp.net mvc app in a subdirectory. If my url is 'www.website.com' and my app is in directory 'sample', then 'www.website.com/sample' will execute the mvc app. My problem is that I want the app to be shown when you go to 'www.website.com' not just 'www.website.com/sample'. I have access to the IIS Manager, and I'm sure there are many ways to do this. What's the best way to do this?

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  • Windows Server vs Sharing

    - by Mark Lawrence
    Not sure if this is the right place for this question. I have a friend that owns a small business running 3 local machines, that are connected to the internet, and a server that each local machine connects to. He has recently bought a newer server, and by server I mean a Windows Vista box. He wants to use this purely to store data that the 3 local machines can access, kind of like a glorified external hard drive. Im suggesting to fore-go the server option and simply setup sharing on the 'server' box. Interested in hearing any suggestions as to whether the server idea is preferable?

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  • Data Mining Software

    - by Mark
    I want to harvest some data like this http://www.newcardealers.ca/en/Dealers/List-A.aspx And insert the name, address, phone number, email, etc. into a database. Is there some software I can use that will take a webpage, let me specify some regexes or something, and then spit out all the matched data in a CSV or some format easily insertable into a DB?

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  • Sendmail Alias for Nonlocal Email Account

    - by Mark Roddy
    I admin a server which is running a number of web applications for a software dev team (source control, bug tracking, etc). The server has sendmail running solely as a transport to the departmental email server over which I have no control. We have someone who is still in the department but no longer on the dev team so I need to configure the transport agent to redirect all outgoing email (which would be coming from these applications) to the person that has taken their place. I added an entry in /etc/aliases like such: [email protected]: [email protected] But when I run /etc/init.d/sendmail newaliases I get the following error: /etc/mail/aliases: line 32: [email protected]... cannot alias non-local names So clearly I'm doing something I shouldn't. Is there a way to get aliases to work with non-local names or alternatively is their a way to accomplish my goal of redirecting outgoing mail for this user to another one? Technical Specs if the matter: Ubuntu 6.06 sendmail 8.13 (ubuntu provided package)

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  • How to install Active Directory Users and Computers for Windows 2008

    - by Mark Arnott
    I want to install the administration tools on a Windows Server 2008 (R1) machine. On Windows 2003 you installed adminpak.msi, but I can't find such a file for 2008. Is this a "feature" in Server Manager? If so what is it named? ---UPDATE--- So I drilled into the server Features list and I have "Remote Server Administration Tools" but it only includes File Services, Print Services and Web Server. This is a member server in a domain but not a domain controller. It is Windows 2008 (original) not R2. Still, why can't it run AD users and computers from this machine?

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  • setting up ssh on minix 3.2

    - by Mark
    I have install MINIX 3.20 on VMware player on LINUX. Now, I am trying to ssh into Minix from the same Linux machine, but I am encountering some problems. First I installed openssh on MINIx then I tried to ssh onto the Minix virtual machine with ssh [email protected] but I got the following output: [email protected]'s password: Permission denied, please try again. [email protected]'s password: Permission denied, please try again. [email protected]'s password: Permission denied (publickey,password,keyboard-interactive). I am sure the password I entered is correct, I have tried to ssh into MINIX on MINIX and it worked but not when I tried it from my linux machine. I have followed the steps for setting up ssh from this webpage, but it didn't work as shown above.

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  • Merely installing PHP5 causes my AWS Ubuntu server to die minutes later from a massive CPU spike

    - by Mark Amery
    I have an AWS server with Ubuntu 11.04 as the OS that is running an Apache2 webserver (incidentally Python-based and using Django). We recently needed to add support for php5 to let us use a third party PHP library (incidentally for serving minified versions of js and css files). However, for no reason any of us can discern, if we simply run sudo apt-get install php5 on the server, then the install appears to finish successfully but, without us taking any further action (including not yet running sudo apt-get install libapache2-mod-php5, which I think would be the next step for us if everything worked), or actually running any PHP scripts on the server, a few minutes later the server becomes impossible to connect to, and looking at the 'Monitoring' tab for the server in the EC2 Management Console reveals that a while after the installation, CPU usage spikes to 100% and stays there permanently (until we reboot the server from the AWS Console). After rebooting, the server also reliably dies within a few (between 0 and 10) minutes. We restored the server to a pre-PHP state from an AMI Image, observed that it was stable, and then tried installing PHP5 again and observed the server die in exactly the same way, so we're pretty much certain that installing PHP5 is what causes the symptoms. What on earth could be causing this behaviour, and how can we get PHP installed on the server without it dying?

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  • Word 2010 - Styled paragraph separating into separate numbered lines

    - by chez
    USING WORD 2010 I have a style "Heading 4 Par" which is a style based on Heading 4. It is a numbered style. My problem is when I apply the "Heading 4 Par" to say a 3 lined paragraph it separates each of the lines in the paragraph and numbers it. I always show the formatting characters and as far as I can see there is only ONE paragraph mark situated at the end of what is supposed to be a paragraph. eg. Original: 7.4 Text.... text con't..... Text... After Applying Format: 7.4 Text... 7.4 text con't... 7.4 text con't. After I've applied the format it behaves as though each line should be the start of a new paragraph but there is no paragraph mark to show this. This is driving me crazy! Help!

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