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• CentOS Existing host to new host with all data/files

  - by ganesh

  Good noon. Our small startup management decided to move our production server from existing provider to azure. We have centOS on both. It is for classified's related site, considerable amount of data and ~thousands users with their disc space quota. This is our first time moving our servers. I need your Guidance and suggestions on these. 1) How to migrate the mysql db (dump OR slave OR copy filesystem)? 2) How to manage the emails during the downtime. 3) Manage the files 4) How to security/Firewall check list for the new system 5) IP/DNS related Checklist 6) Anything that I missed out!. Since first time, planning to be more cautious. Any reference documents Highly appreciated. Thank you all!.

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• Going from dev to sysadmin advice [on hold]

  - by dotnetdev

  I've seen the threads on here about transitions to/from sysadmin. My story is I am a dev (technology is irrelevant), but in learning that technology it required a lot of server infrastructure. In the last few years, I thus had to setup a lot of infrastructure (AD, DNS, SQL etc) to learn said technology. I've noticed that I've enjoyed doing sysadmin and got quite good at it, and find it even engrossing (e.g. I am amazed by how decievingly complicated AD is, under the hood). I'm now thinking of moving into IT infrastructure after about 4 years in various dev (.NET) roles. Any advice? My concern is that I don't have any experience with hardware load balancers and firewalls like F5 etc, which some jobs require. How could I compensate for that? Also, I'm rubbish with my hands, would this be a factor? (i.e. maintaining physical kit)? Thanks

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• Basic syntax for an animation loop?

  - by Moshe

  I know that jQuery, for example, can do animation of sorts. I also know that at the very core of the animation, there must me some sort of loop doing the animation. What is an example of such a loop? A complete answer should ideally answer the following questions: What is a basic syntax for an effective animation recursion that can animate a single property of a particular object at a time? The function should be able to vary its target object and property of the object. What arguments/parameters should it take? What is a good range of reiterating the loop? In milliseconds? (Should this be a parameter/argument to the function?) REMEMBER: The answer is NOT necessarily language specific, but if you are writing in a specific language, please specify which one. Error handling is a plus. {Nothing is more irritating (for our purposes) than an animation that does something strange, like stopping halfway through.} Thanks!

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• Weird behaviour with OpenVPN: can not connect to a few websites

  - by Gaby Solis

  My OpenVPN server is Ubuntu 10.04.4 LTS and openvpn version is 2.x My client is on Win 7. He can access most sites but not Youtube, Facebook, Twitter, groups.google.com, etc My server.conf is: local x.x.x.x port 1194 proto udp dev tun ca /etc/openvpn/keys/ca.crt cert /etc/openvpn/keys/server.crt key /etc/openvpn/keys/server.key dh /etc/openvpn/keys/dh1024.pem server 10.8.0.0 255.255.255.0 push "redirect-gateway def1" push "dhcp-option DNS 8.8.8.8" client-to-client keepalive 10 120 comp-lzo persist-key persist-tun status /etc/openvpn/keys/openvpn-status.log verb 4 I can access Youtube etc using SSH Tunnel + SOCKS Proxy, and the Ubuntu server can access all sites. so nothing is wrong with the Ubuntu server. With little information I can provide, I am not looking for a quck solution. How can I debug?

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• If I use openvpn, can vpn servers monitor my usernames/passwords?

  - by Duff

  Openvpn uses a type of encryption similar to ssl. This seems to suggest that even if I choose an incredibly shady VPN server, then my content will be secure. That is, the VPN server will be able to monitor what websites I patronize, but not the actual data I transfer. That said, I am not an expert at this type of thing. I wanted, therefore, to make sure that I understand correctly. Is it true that if I use openvpn that my username/passwords are secure, even if the VPN is untrustworthy? If not, why? (And how, if at all, can it be fixed?) Examples of things that I don't know much about that may (or may not! I honestly don't know much about this.) be related to my question are: DNS leakage, IPv6, tracking cookies, browser plugins and websites that don't support https.

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• Moving MS Exchange 2007 to another machine

  - by Mustafa Ismail Mustafa

  We have a machine that has been chugging along with the burden of both Exchange and DC and DNS all with SBS 2008. We have a better machine now and I'd like to move Exchange 2007 to that machine and take it off of this machine. In fact, I'm planning on formatting the old machine and get rid of SBS all together because it is making the machine SLOW. How would I go about making the move? I've read on previous versions of Exchange (2000), that all you do is install Exchange on the new machine and then start moving mailboxes one after the other. Well, what about all the different rules we have in place? How do those get moved? How do we de-commission the old exchange and set up the new exchange as the primary one? Come to think of it, how do we have both exchanges recognize each other on the same domain? TIA

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• Accessing through VPN, which internet connection would be used

  - by Sriram

  I've a data card which has a limit of 2 GB up/download traffic per month. I've an office internet line which has an unlimited up/download. I've successfully connected to VPN using my data card and by changing certain configurations like DNS etc., have also been able to use my office line for internet (verified by doing a IP check - returns the static IP of our office). Now to my question - is it just a NAT which is happening or am I actually using my office line for all communication. Which one would reflect the usage/trace. The data card usage log at this moment does not reflect any usage (which is confusing since the VPN is over the data card connection). Further more (theoretically), would the net be any faster if my office line is let us say 8Mbps and the data card is 512kbps by doing this as against directly connecting the internet using the data card.

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• Changing SPF (Sender Policy Framework) record for Google Apps

  - by bobo

  My boss asked me to set up Google Apps for a client and basically I have done everything including setting up MX records in DirectAdmin and re-creating the email accounts in Google Apps. I also sent a few test emails to ensure that it actually works and it seems fine. But then I discovered this article talking about changing the SPF record for the domain. http://www.google.com/support/a/bin/answer.py?answer=178723 After reading the introduction I think it would be better for me to change the SPF record according to this article. So I logged in to the DirectAdmin and navigated to the DNS management, and then I found that there's already a TXT SPF record there: v=spf1 a mx a:spf.cabin.com.hk include:gmail.com -all And it looks like it's already including gmail.com, but according to the article it should be: _spf.google.com rather than: gmail.com I dare not to change it before I understand what this record actually means. What would you do with this record if you were me?

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• Zimbra ZCS 7.2.1 MTA Deferring e-mail

  - by user139181

  Zimbra 7.1.2 and the MTA seems to be deferring e-mail when it is received. Oct 1 09:35:42 www postfix/error[16614]: 5FB8C1A803EE: to=<[email protected]>, relay=none, delay=0.15, delays=0.08/0.01/0/0.06, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to thedigiologygroup.org[75.149.56.27]:7025: Connection timed out) I can telnet to both 25 and 7025. I do get a $ telnet thedigiologygroup.org 25 Trying 75.149.56.27... Connected to thedigiologygroup.org. Escape character is '^]'. 220 thedigiologygroup.org ESMTP Postfix 500 5.5.2 Error: bad syntax 500 5.5.2 Error: bad syntax` I dont see email in the inbox obviously and I am not sure how to troubleshoot what is going on. Nothing DNS has changed. This box has been running for a year Zimbra was removed and re-installed after trying to upgrade to ZCS-8 with no luck.

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• Nested parsers in happy / infinite loop?

  - by McManiaC

  I'm trying to write a parser for a simple markup language with happy. Currently, I'm having some issues with infinit loops and nested elements. My markup language basicly consists of two elements, one for "normal" text and one for bold/emphasized text. data Markup = MarkupText String | MarkupEmph [Markup] For example, a text like Foo *bar* should get parsed as [MarkupText "Foo ", MarkupEmph [MarkupText "bar"]]. Lexing of that example works fine, but the parsing it results in an infinite loop - and I can't see why. This is my current approach: -- The main parser: Parsing a list of "Markup" Markups :: { [Markup] } : Markups Markup { $1 ++ [$2] } | Markup { [$1] } -- One single markup element Markup :: { Markup } : '*' Markups1 '*' { MarkupEmph $2 } | Markup1 { $1 } -- The nested list inside *..* Markups1 :: { [Markup] } : Markups1 Markup1 { $1 ++ [$2] } | Markup1 { [$1] } -- Markup which is always available: Markup1 :: { Markup } : String { MarkupText $1 } What's wrong with that approach? How could the be resolved? Update: Sorry. Lexing wasn't working as expected. The infinit loop was inside the lexer. Sorry. :) Update 2: On request, I'm using this as lexer: lexer :: String -> [Token] lexer [] = [] lexer str@(c:cs) | c == '*' = TokenSymbol "*" : lexer cs -- ...more rules... | otherwise = TokenString val : lexer rest where (val, rest) = span isValidChar str isValidChar = (/= '*') The infinit recursion occured because I had lexer str instead of lexer cs in that first rule for '*'. Didn't see it because my actual code was a bit more complex. :)

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• AWS ELB as backend for Varnish Accelerator

  - by addisonj

  I am working on a large deployment on AWS that has high uptime requirements and variable loads throughout the day. Obviously, this is the perfect use case for ELB (Elastic Load Balancer) and autoscaling. However, we also rely on varnish for caching of API calls. My initial instinct was to structure the stack so that varnish uses ELB as a backend which in turn hits an appGroup. Varnish -> ELB -> AppServers However, according to a few sources that isn't possible as ELB constantly changes the IP address of its DNS hostname, which varnish caches on start, meaning changes to the IP won't be picked up by varnish. Reading around however, it looks like people are doing this so I am wondering what workarounds exist? Perhaps a script to reload the vcl periodically? In the case of where this is really just not a good idea, any idea of other solutions?

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• Python OOP and lists

  - by Mikk

  Hi, I'm new to Python and it's OOP stuff and can't get it to work. Here's my code: class Tree: root = None; data = []; def __init__(self, equation): self.root = equation; def appendLeft(self, data): self.data.insert(0, data); def appendRight(self, data): self.data.append(data); def calculateLeft(self): result = []; for item in (self.getLeft()): if (type(item) == type(self)): data = item.calculateLeft(); else: data = item; result.append(item); return result; def getLeft(self): return self.data; def getRight(self): data = self.data; data.reverse(); return data; tree2 = Tree("*"); tree2.appendRight(44); tree2.appendLeft(20); tree = Tree("+"); tree.appendRight(4); tree.appendLeft(10); tree.appendLeft(tree2); print(tree.calculateLeft()); It looks like tree2 and tree are sharing list "data"? At the moment I'd like it to output something like [[20,44], 10, 4], but when I tree.appendLeft(tree2) I get RuntimeError: maximum recursion depth exceeded, and when i even won't appendLeft(tree2) it outputs [10, 20, 44, 4] (!!!). What am I missing here? I'm using Portable Python 3.0.1. Thank you

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• Is there any viable alternative to using a linux/unix/BSD firewall/router/vpn?

  - by ObligatoryMoniker

  I am trying to purchase something to replace our Vyatta router that is running in a virtual machine on Hyper V (having the whole network go down when the host has to reboot is not convenient and I am getting the sense that this configuration may not be stable). Most posts on this topic suggest using Linux/OpenBSD/FreeBSD/etc with some recommendations to use appliances from vendors for specific purposes like firewall and VPN. We are a windows shop and it has been a stretch for us to make use of Vyatta but since it was free and straightforward to use we decided to use it. Now we need something that is easier for our team to (re)deploy and manage. I would rather purchase something windows based or an appliance that can do all of the following things: DHCP server (reservations, specified gateway, dns, etc) Static Routes that route traffic across three interfaces Easily Reproducible (Powershell script, Puppet, Chef, etc) Intuitive interface (Decent web interface would be fine but I don't want them to have to go to CLI) Does any one have any recommendations on what I should be looking at that might meet our needs?

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• Facebook doesn't work on computer, but work on mobile device, both use the same router

  - by sasa

  I have a very strange problem and I'm thinking that can be problem with dns or something similar, but not sure and don't know how to solve. My computer is connected to router and every site works fine except facebook (Chrome and Firefox). Chrome shows "Error 101 (net::ERR_CONNECTION_RESET): The connection was reset." But, on mobile device witch is connected to the same router facebook works fine (Fb application and Delphin browser). Pinging facebook works fine. Clearing cookies and cache didn't help. Also, I performed antivirus and antimalware scan and there is nothing. What can be a problem? Update: I'm also connect notebook on that wifi router, and on it works fine. nslookup facebook.com Server: UnKnown Address: 192.168.1.1 Non-authoritative answer: Name: facebook.com Addresses: 2a03:2880:2110:3f01:face:b00c:: 2a03:2880:10:1f02:face:b00c:0:25 2a03:2880:10:8f01:face:b00c:0:25 69.171.224.37 69.171.229.11 69.171.242.11 66.220.149.11 66.220.158.11

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• How to handle dates that repeat indefinitely

  - by Addsy

  I am implementing a fairly simple calendar on a website using PHP and MySQL. I want to be able to handle dates that repeat indefinitely and am not sure of the best way to do it. For a time limited repeating event it seems to make sense to just add each event within the timeframe into my db table and group them with some form of recursion id. But when there is no limit to how often the event repeats, is it better to a) put records in the db for a specific time frame (eg the next 2 years) and then periodically check and add new records as time goes by - The problem with this is that if someone is looking 3 years ahead, the event won't show up b) not actually have records for each event but instead when i check in my php code for events within a specified time period, calculate wether a repeated event will occur within this time period - The problem with this is that it means there isn't a specific record for each event which i can see being a pain when i then want to associate other info (attendance etc) with that event. It also seems like it might be a bit slow Has anyone tried either of these methods? If so how did it work out? Or is there some other ingenious crafty method i'm missing?

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• Exchange 2007: relay only from selected servers based on rDNS

  - by Frank

  I'm looking for a way to make Exchange 2007 only accept mail from a certain group of hosts. These hosts all use the same identifying rDNS entry. Exchange 2003 uses a whitelist based on the reverse DNS, there we could add the hostname to the to the "Domain" field. However, in Exchange 2007 this option seems to be removed. Is there a way to do this? IP's however tend to change. These changes can occur at any time, and it is impossible to keep all the servers up-to-date to the new IP's. Running a script that resolves the hostname and whitelists them accordingly is my last-resort option, but this is not fool-proof. Does anyone know whether this is possible and if so, how? Thanks!

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• 550 relay not permitted

  - by Nick Swan

  Hi, we are using Fogbugz on our server to do customer support emails. Occasionally though we get errors coming back when sending emails of: 550 relay not permitted This seems to happen at random though, sometimes sending an email to a person works, next time to the same person it'll bounce back. I've tried setting up reverse DNS with the server host and creating the SPF record in GoDaddy but we still get some of these errors. Is there anything else I can do, and is there a way of testing these are actually configured correctly? Many thanks, Nick

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• Need help identiying a nasty rootkit in Windows

  - by goofrider

  I have a nasty rootkit that not tools seem to be able to idenity. I know for sure it's a rootkit, but I can figure out which rootkit it is. Here's what I gathered so far: It creates multiple copies of itself in %HOME%\Local Settings\Temp with names like Q.EXE, IAJARZ.exe, etc., and install them as hidden services. These EXE have SysInternals identifiers in them so they're definitely rootkits. It hooked very deep in the system, including file read/write, security policies, registry read/write, and possibly WinSock/TCP/IP. When going to Sophos.com to download their software, the rootkit inject something called Microsoft Ajax Tootkit into the page, which injects code into the email submission form in order to redirect it. (EDIT: I might have panicked. Looks like Sophos does use an AJAZ email form, their form is just broken on Chrome so it looked like a mail form injection attack, the link is http://www.sophos.com/en-us/products/free-tools/virus-removal-tool/download.aspx ) Super-Antispyware found a lot of spyware cookies, in the name of .kaspersky.2o7.net, etc. (just chedk 2o7.net, looks like it's a legit ad company) I tried comparing DNS lookup from the infected systems and from system in other physical locations, no DNS redirections it seems. I used dd to copy the MBR and compared it with the MBR provided by ms-sys package, no differences so it's not infecting MBR. No antivirus or rootkit scanner be able to identify it. Most of them can't even find it. I tried scanning, in-situ (normal mode), in safe mode, and boot to linux live CD. Scanners used: Avast, Sophos anti rootkit, Kasersky TDSSKiller, GMER, RootkitRevealer, and many others. Kaspersky reported some unsigned system files that ought to be signed (e.g. tcpip.sys), and reported a number of MD5 mismatches. But otherwise couldn't identify anything based on signature. When running Sysinternal RootkitRevealer and Sophos AntiRootkit, CPU usage goes up to 100% and gets stucked. The Rootkit is blocking them. When trying running/installing HiJackThis, RootkitRevealer and some other scanners, it tells me system security policy prevent running/installing it. The list of malicious acitivities go on and on. here's a sample of logs from all my scans. In particular, aswSnx.SYS, apnenfno.sys and PROCMON20.SYS has a huge number of hooks. It's hard to tell if the rootkit replaced legit program files like aswSnx.SYS (from Avast) and PROCMON20.SYS (from Sysinternal Process Monitor). I can't find whether apnenfno.sys is from a legit program. Help to identify it is appreciated. Trend Micro RootkitBuster ------ [HIDDEN_REGISTRY][Hidden Reg Value]: KeyPath : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sptd\Cfg Root : 586bfc0 SubKey : Cfg ValueName : g0 Data : 38 23 E8 D0 BF F2 2D 6F ... ValueType : 3 AccessType: 0 FullLength: 61 DataSize : 32 [HOOKED_SERVICE_API]: Service API : ZwCreateMutant Image Path : C:\WINDOWS\System32\Drivers\aswSnx.SYS OriginalHandler : 0x8061758e CurrentHandler : 0xaa66cce8 ServiceNumber : 0x2b ModuleName : aswSnx.SYS SDTType : 0x0 [HOOKED_SERVICE_API]: Service API : ZwCreateThread Image Path : c:\windows\system32\drivers\apnenfno.sys OriginalHandler : 0x805d1038 CurrentHandler : 0xaa5f118c ServiceNumber : 0x35 ModuleName : apnenfno.sys SDTType : 0x0 [HOOKED_SERVICE_API]: Service API : ZwDeleteKey Image Path : C:\WINDOWS\system32\Drivers\PROCMON20.SYS OriginalHandler : 0x80624472 CurrentHandler : 0xa709b0f8 ServiceNumber : 0x3f ModuleName : PROCMON20.SYS SDTType : 0x0 HiJackThis ------ O23 - Service: JWAHQAGZ - Sysinternals - www.sysinternals.com - C:\DOCUME~1\jeff\LOCALS~1\Temp\JWAHQAGZ.exe O23 - Service: LHIJ - Sysinternals - www.sysinternals.com - C:\DOCUME~1\jeff\LOCALS~1\Temp\LHIJ.exe Kaspersky TDSSKiller ------ 21:05:58.0375 3936 C:\WINDOWS\system32\ati2sgag.exe - copied to quarantine 21:05:59.0217 3936 ATI Smart ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:05:59.0342 3936 C:\WINDOWS\system32\BUFADPT.SYS - copied to quarantine 21:05:59.0856 3936 BUFADPT ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:05:59.0965 3936 C:\Program Files\CrashPlan\CrashPlanService.exe - copied to quarantine 21:06:00.0152 3936 CrashPlanService ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:00.0246 3936 C:\WINDOWS\system32\epmntdrv.sys - copied to quarantine 21:06:00.0433 3936 epmntdrv ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:00.0464 3936 C:\WINDOWS\system32\EuGdiDrv.sys - copied to quarantine 21:06:00.0526 3936 EuGdiDrv ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:00.0604 3936 C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe - copied to quarantine 21:06:01.0181 3936 FLEXnet Licensing Service ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:01.0321 3936 C:\Program Files\AddinForUNCFAT\UNCFATDMS.exe - copied to quarantine 21:06:01.0430 3936 OTFSDMS ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:01.0492 3936 C:\WINDOWS\system32\DRIVERS\tcpip.sys - copied to quarantine 21:06:01.0539 3936 Tcpip ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:01.0601 3936 C:\DOCUME~1\jeff\LOCALS~1\Temp\TULPUWOX.exe - copied to quarantine 21:06:01.0664 3936 HKLM\SYSTEM\ControlSet003\services\TULPUWOX - will be deleted on reboot 21:06:01.0664 3936 C:\DOCUME~1\jeff\LOCALS~1\Temp\TULPUWOX.exe - will be deleted on reboot 21:06:01.0664 3936 TULPUWOX ( UnsignedFile.Multi.Generic ) - User select action: Delete 21:06:01.0757 3936 C:\WINDOWS\system32\Drivers\usbaapl.sys - copied to quarantine 21:06:01.0866 3936 USBAAPL ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:01.0913 3936 C:\Program Files\VMware\VMware Player\vmware-authd.exe - copied to quarantine 21:06:02.0443 3936 VMAuthdService ( UnsignedFile.Multi.Generic ) - User select action: Quarantine 21:06:02.0443 3936 vmount2 ( UnsignedFile.Multi.Generic ) - skipped by user 21:06:02.0443 3936 vmount2 ( UnsignedFile.Multi.Generic ) - User select action: Skip 21:06:02.0459 3936 vstor2 ( UnsignedFile.Multi.Generic ) - skipped by user 21:06:02.0459 3936 vstor2 ( UnsignedFile.Multi.Generic ) - User select action: Skip

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• How to set up Windows server 2008 to receive email?

  - by Saul

  First off apologies, I'm from a medical background not a networking one, but I've got roped into setting up a windows 2008 server. So far web server running, fixed IP address assigned (within a large private network of the National Health Service in the UK if that makes any difference) and the network team have assigned a DNS entry for me which works, so the server can be addressed as nww.myserver.nhs.uk I've only got ports open on the router for 80 and 443 (http and https) at the moment, so presume I need a different port to enable email services. My need is to be able to accept an email to the domain name like [email protected] in order to pick up a confirmation mail from an SSL issuer (Comodo) I guess to confirm that I control the domain. After that I don't actually need mail services on the server. I see lots of stuff about setting up SMTP services but thought that was about mail out and re-routing, but how do you get the server to "listen" for mail to the domain (assuming I open port xyz or whatever it is) ?

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• Outgoing mail from linux not being delivered

  - by Jason

  I can't seem to send mail through my php scripts or through the linux console on my Centos 5.5 LAMP server, when the email is addressed to go to a domain that is hosted by my box. I think it is something to do with the email routing internally, or the DNS servers that the box uses not reporting the correct MX records. Basically my box doesn't host any mail, it's all hosted on google apps. My name servers are hosted by a 3rd party provider and I am using webmin. Webmin doesn't recognise the settings on the 3rd party provider. I'm unsure how to fix this. Previously when I had this problem on a cpanel server, I would edit the remotedomains and localdomains files, moving domains from one file to another and it would fix the problem. What information do I need to provide for anyone to work out what the issue is? Thanks

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• How come I can't ping my home computer?

  - by bikefixxer

  I'm trying to set up a vpn into my home computer in order to access files from wherever. I have the home computer set up with a no-ip dynamic dns program so I can always connect, and have also tried using the actual ip address. However, when I try to connect or even ping from anywhere outside of my house I can't get through. I've tried putting that particular computer in the dmz, turned off the computers firewall and anti-virus, and I still don't get anything. I have comcast as my home internet provider. I have also tried from two different locations. Are there any other solutions I can try or is comcast the issue? I used to be able to do this when I ran a small web server at home for fun but now nothing works. Thanks in advance for any suggestions!

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• converting a Tree to newick format. java

  - by Esmond

  I'm having problems converting a binary rooted tree to newick format. The full explanation for such a format can be found: http://code.google.com/p/mrsrf/wiki/NewickTree An example of a newick format would be as follows: for a tree T such as http://www.cs.mcgill.ca/~cs251/OldCourses/1997/topic8/images/completetreetwo.gif the newick representation would be: (((8,9),(10,11)),((12,13),(14,15))) the internal node will become the commas while the leaves will be retained. such trees have internal nodes which will always have 2 children. I have a problem using recursion to come out with this newick format. The output contains far too many nodes and braces. Any comments to resolve this problem is appreciated or even an iterative algorithm would be welcomed import java.util.Stack; public class Tree { .... public String inOrderNewick(Node root, String output) throws ItemNotFoundException { if (root.hasChild()) { output += "("; output += inOrderNewick(root.child1, output); output += ","; output += inOrderNewick(root.child2, output); output += ")"; return output; } else { output += root.getSeq(); return output; } } }

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• multiple domains, one static IP address and latency

  - by shirish

  how is latency affected when multiple domains are using one single static IP address ? The scenario is in shared web-hosting By latency meaning the DNS lookup the client has to do. As far as I understand it, the browser would hit the root servers to try to figure out the IP Address and it belongs where and then when it comes to the correct server, it probably looks up some sort of table to determine which site names much and show that site as such via browser to the user. Is my understanding correct or backwards or what ?

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• My windows xp wireless hotspot isn't working

  - by Dominic Grenier

  I add the hotspot the regular way. Yet it doesn't show up as available when I try to connect to it using my other Ubuntu laptop. And nothing can connect to it. Yesterday, I successfully made it work for 5 minutes and then it stopped without me changing any configuration. I've already tryed resetting the DNS. Edit: I've updated my Broadcom 802.11b/g driver to a generic but more recent version. I've also repaired the WMI, now the advanced tab of my primary connection is available and the hand meaning the connection is shared appeared. But the computers still connect the wrong way around. (Windows to ubuntu instead of ubuntu to windows) Reinstalled SP3...

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• My windows xp wireless hotspot wifi isn't working

  - by Dominic Grenier

  I add the hotspot the regular way. Yet it doesn't show up as available when I try to connect to it using my other Ubuntu laptop. And nothing can connect to it. Yesterday, I successfully made it work for 5 minutes and then it stopped without me changing any configuration. I've already tryed resetting the DNS. Edit: I've updated my Broadcom 802.11b/g driver to a generic but more recent version. I've also repaired the WMI, now the advanced tab of my primary connection is available and the hand meaning the connection is shared appeared. But the computers still connect the wrong way around. (Windows to ubuntu instead of ubuntu to windows) Reinstalled SP3...

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