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• Solaris 10 invalid ARP requests from 0.0.0.0? Link up/down every hour or 2

  - by JWD

  The guys at the data center where I'm hosting a server running Solaris 10 are telling me that my server is making a lot of invalid arp requests. This is an example of a portion of what was sent to me from the logs (with Mac addresses and IP addresses changed). [mymacaddress]/0.0.0.0/0000.0000.0000/[myipaddress]/[Datestamp]) It's being logged every hour. I don't see anything in the arp tables (arp -a) or routing tables (netstat -r) and I don't see anything relating to 0.0.0.0 when snoping the arp requests. The only place I see any reference to 0.0.0.0 is if I do netstat -a for the SCTP SCTP: Local Address Remote Address Swind Send-Q Rwind Recv-Q StrsI/O State ------------------------------- ------------------------------- ------ ------ ------ ------ ------- ----------- 0.0.0.0 0.0.0.0 0 0 102400 0 32/32 CLOSED But not really sure what that means. Doesn't seem like I can disable SCTP. There are some tunable SCTP parameters but it's not something I'm familiar with. Do I have to add changes to /etc/system? Looks like sctp_heartbeat_interval might be what I need to change? If it makes any difference, I have a few solaris zones running on this server, each with their own IP address on a virtual interface. eth0:0, eth0:1, etc. Does anyone have any idea what might be causing this and how to stop it? I think the switch I'm connected to doesn't like it and momentarily drops the connection. Is there anyway to at least block those requests using ipfilter or something else? Update: This was happening more frequently but now it seems to be happening roughly every hour or every two hours. It's not consistent. I tried setting setting the link speed and duplex to match the switch port and that seemed to make it stop happening for a few hours but then it started again.

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• Install and enforce a scheduled task across a Windows domain

  - by Ricket

  We have a small domain of about 70 Windows computers (XP and 7). We want to schedule a command (an update mechanism) to run on all computers periodically, and we want the task to run regardless of the computer's connection to our network (i.e. the task should run even on a laptop that isn't connected to our VPN). We have a Microsoft System Center Essentials 2010 server so that might come in handy. The options I see are these: Do it completely manually. Install the scheduled task by hand or remotely using psexec (and the at command?) for each computer in our network. Enforce that newly imaged computers should have this task installed on them before deployed to the employee, or the task should be in the image. High initial cost (having to do this for each of 70 computers) but building it into the image might work... But there is some maintenance in making sure the task is added to everything. And I fear that a year or two down the road, we will have forgotten about it or gotten sloppy or had new IT employees who miss this step and some computers won't have the task. Having one of our servers run a script that loops through all computers and psexec's the command on each computer in the network -- it would only run on running, connected computers, so this solution wouldn't work. I suspect SCE could do something like this too, but again this is not a good solution. Neither of these are ideal, and I'm certain there is a better way to do it -- right? What is the best way to accomplish this task?

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• Vista won't boot. BSOD: Page fault in nonpaged area

  - by user31576

  Here's the story: I let Windows Update do the updates it wanted to do, then rebooted the computer. The updating process was taking time so I went away. When I came back, my computer was rebooting. It got as far as the Windows logo with the laoding bar. BSOD'd. Rebooted. And I'm stuck in this loop ever since. Looked up on the net, the "Page fault in nonpaged area" seems to be linked to faulty RAM or drivers. So I ran a memory test, it found no error. When I try in safe mode (with promt) I can see a list of drivers being loaded, then I get the same BSOD. I tried to repair using the Vista DVD, it says "nothing to repair". I tried to restore to a previous state, it says "no restore point found". So, my guess is, it's got something to do with the drivers. How can I identify the one causing the BSOD? If you have any other leads, What can I do? By the way, I'm writing from this very computer, running a linux distro I installed after the BSOD loop started. So i guess it's not an hardware issue. I have backed up important data, and will format and reinstall Windows if I must. But I'd like to avoid that. Thanks in advance for any help you can give me.

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• grep --color=auto with -i option disables the matching text color, why?

  - by emptyset

  I was messing around with grep and put this in my .zshenv: export GREP_OPTIONS="--color=auto" export GREP_COLORS='mt=1;34' I was bonking my head on the keyboard and changing GREP_COLORS around for a minute trying to figure out why the folder colors were working, but the matching text wasn't. I was doing this: $ grep -R -n -i -e "functionFoo\(" --include=*.cs --exclude-dir=Logs * The line number and file names were set with the default colors, but the matching text wasn't. After spending way too much time, I thought to do this: $ grep -R -n -e "functionFoo\(" --include=*.cs --exclude-dir=Logs * (I removed the -i option.) That's all it took to get the matching text to correctly show up in bold blue. This is a Cygwin on Vista setup, with rxvt running zsh. Any idea why grep colors would break on specifying a case-insensitive match? Update: Under cygwin 1.7, it's a little bit better - case insensitive search works correctly, but it only highlights the word that matches the expression exactly. In other words, "FunctionFoo" highlights "FunctionFoo" but not "functionFoo" and vice versa. Probably a grep issue so I'll be submitting it to that list.

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• erlyvideo server doesn't start automatically after reboot

  - by electroid

  I have installed erlyvideo server on ubuntu 9.10 karmic koala. Everything works fine, but after server reboot I have to start erlyvideo server manually with /etc/init.d/erlyvideo start. I try allready update-rc.d and I think erlyvideo by default should start automaticaly. Any help will be appreciated. Here erlyvideo startup script located in /etc/init.d/erlyvideo: #!/bin/sh ### BEGIN INIT INFO # Provides: erlyvideo # Required-Start: $local_fs $network # Required-Stop: $local_fs $network # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: starts the erlyvideo streaming server # Description: starts the erlyvideo using erlang system ### END INIT INFO case "$1" in start) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; stop) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; restart) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; soft-restart) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; upgrade) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; reconfigure) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; reboot) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; ping) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; console) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; attach) cd /opt/erlyvideo && ./bin/erlyvideo "$1" ;; attach-erl) cd /opt/erlyvideo && ./erts-5.8.4/bin/erl -name [email protected] -remsh [email protected] ;; *) echo $"Usage: $0 {start|stop|restart|soft-restart|upgrade|reboot|ping|console|attach}" exit 1 esac exit 0 And I have found S91erlyvideo in /etc/rc2.d next to S91apache2 which starts just fine on every reboot.

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• Eclipse on Ubuntu: Rectangles instead of Strings and some Java methods and classes

  - by Claus Hausberger

  after upgrading from Ubuntu 9.04. to 11.04 (new installation), I have weird problems with the Eclipse editor. With the Eclipse PyDev plugin, whenever I typ single quoted strings like 'bla', they appear as rectangles (both the quotes as well as the string). First I thought this was a problem with the PyDev plugin, but it also happens with Java and Scala Plugins. With Java, it happens, for example, when typing System.out.println("bla") and then "out" is shown as rectangles only. Weird is that for about half a second I see "System.out.println" and then the editor changes it to System.[][][].println (not really [] (here I used two brackets), it is shown as rectangles). This is very weird. I've never had this before with any Ubuntu, Java or Eclipse version. Currently, I use: Ubuntu 11.04. Eclipse 3.6 Java 1.6.0_25 The latest plugins for Python (2.1) and Scala (beta 5) where used. Eclipse and Ubuntu Terminal is set to UTF-8. The problem also happens when using KDE instead of Gnome. I doubt is has anything to do with Java as I use the same versions on older Ubuntu installations (10.04, 9.10, etc) at work. It does not happen with Netbeans. But I saw once error dialog message from the Update Manager where there were some rectangles in the error widget. Maybe this is the same problem Any ideas what could be wrong here and how to fix this? Eclipse is unusable but I need this for work and also for Scala and Python (the Eclipse plugins for those are very good now). Claus

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• How do I Install Intermediate Certificates (in AWS)?

  - by getmizanur

  I have installed private key (pem encoded) and public key certificate (pem encoded) on Amazon Load Balancer. However, when I check the SSL with site test tool, I get the following error: Error while checking the SSL Certificate!! Unable to get the local issuer of the certificate. The issuer of a locally looked up certificate could not be found. Normally this indicates that not all intermediate certificates are installed on the server. I converted crt file to pem using these commands from this tutorial: openssl x509 -in input.crt -out input.der -outform DER openssl x509 -in input.der -inform DER -out output.pem -outform PEM During setup of Amazon Load Balancer, the only option I left out was certificate chain. (pem encoded) However, this was optional. Could this be cause of my issue? And if so; How do I create certificate chain? UPDATE If you make request to VeriSign they will give you a certificate chain. This chain includes public crt, intermediate crt and root crt. Make sure to remove the public crt from your certificate chain (which is the top most certificate) before adding it to your certification chain box of your Amazon Load Balancer. If you are making HTTPS requests from an Android app, then above instruction may not work for older Android OS such as 2.1 and 2.2. To make it work on older Android OS: go here click on "retail ssl" tab and then click on "secure site" "CA Bundle for Apache Server" copy and past these intermediate certs into certificate chain box. just incase if you have not found it here is the direct link. If you are using geo trust certificates then the solution is much the same for Android devices, however, you need to copy and paste their intermediate certs for Android.

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• Programs don't have permissions when using absolute path

  - by Markos

  I have asked this on askubuntu but didn't get a single response in days, so I will try it here. I have directory structure like this: /path/dir1 - all users in group1 must have rwx permissions, including subdirs and newly created dirs /path/dir1/dir2 - also users in group2 must have rwx permissions So what I tried is that I used ACL. getfacl /path/dir1 # file: /path/dir1 # owner: root # group: nogroup user::rwx group::--- group:group1:rwx mask::rwx other::--- default:user::rwx default:group::--- default:group:group1:rwx default:mask::rwx default:other::--- getfacl /path/dir1/dir2 # file: /path/dir1/dir2 # owner: root # group: nogroup user::rwx group::--- group:group1:rwx group:group2:rwx mask::rwx other::--- default:user::rwx default:group::--- default:group:group1:rwx default:group:group2:rwx default:mask::rwx default:other::--- That shows that I have granted rwx to group1 in /path/dir1 and rwx to group1 and group2 in /path/dir1/dir2. Now it gets interesting. Let's assume, that user2 is member of group2. If I issue commands as user2: cd /path/dir1/dir2 mkdir foo Then folder is succesfully created. However, if I do this: mkdir /path/dir1/dir2/foo I get permission denied error. I have tried extensively to resolve the problem. What I have found is that ACL is to blame. If I add permissions to group2 in /path/dir1 it starts to work. Also if I completely remove /path/dir1 ACL it starts to work. Obviously I am missing something VERY basic. I don't have much experience with linux, but this is a no-brainer on Windows. I have spent way too many hours to resolve this basic requirement. If you need more information, I will try to update the question, so feel free to ask!

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• Extremely high mysqld CPU usage with no active queries

  - by RadarNyan

  I have a VPS running Ubuntu 12.04 LTS with LEMP stack, followed the guide from Linode Library (since I'm using a Linode) to setup, and everything worked fine until now. I don't know what's wrong, but my CPU usage just goes up since a week ago. Today things getting really bad - I got 74% CPU usage so I went check and found that mysqld taking too much CPU usage (somewhere around 30% ~ 80%) So I did some Google Search, tried disable InnoDB, restart mysql, reset ntp / system clock (Isn't this bug supposed to happen more than a year ago?!) and reboot my VPS, nothing helped. Even with mysql processlist empty, I still get mysqld CPU usage very high. I don't know what I missed and have totally no idea, any advice would be appreciated. Thanks in advance. Update: I got these from running "strace mysqld" write(2, "InnoDB: Unable to lock ./ibdata1"..., 44) = 44 write(2, "InnoDB: Check that you do not al"..., 115) = 115 select(0, NULL, NULL, NULL, {1, 0}^[[A^[[A) = 0 (Timeout) fcntl64(3, F_SETLK64, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}, 0xbfa496f8) = -1 EAGAIN (Resource temporarily unavailable) hum... I did tried to disable InnoDB and it didn't fix this problem. Any idea? Update2: # ps -e | grep mysqld 13099 ? 00:00:20 mysqld then use "strace -p 13099", the following lines appears repeatedly: fcntl64(12, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(12, F_SETFL, O_RDWR|O_NONBLOCK) = 0 accept(12, {sa_family=AF_FILE, NULL}, [2]) = 14 fcntl64(12, F_SETFL, O_RDWR) = 0 getsockname(14, {sa_family=AF_FILE, path="/var/run/mysqld/mysqld.sock"}, [30]) = 0 fcntl64(14, F_SETFL, O_RDONLY) = 0 fcntl64(14, F_GETFL) = 0x2 (flags O_RDWR) setsockopt(14, SOL_SOCKET, SO_RCVTIMEO, "\36\0\0\0\0\0\0\0", 8) = 0 setsockopt(14, SOL_SOCKET, SO_SNDTIMEO, "<\0\0\0\0\0\0\0", 8) = 0 fcntl64(14, F_SETFL, O_RDWR|O_NONBLOCK) = 0 setsockopt(14, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported) futex(0xb786a584, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0xb786a580, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 futex(0xb7869998, FUTEX_WAKE_PRIVATE, 1) = 1 poll([{fd=10, events=POLLIN}, {fd=12, events=POLLIN}], 2, -1) = 1 ([{fd=12, revents=POLLIN}]) er... now I totally don't get it x_x help

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• Are my iptables secure?

  - by Patricia

  I have this in my rc.local on my new Ubuntu server: iptables -F iptables -A INPUT -i eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --dport 9418 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --sport 9418 -m state --state ESTABLISHED -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --dport 5000 -m state --state NEW,ESTABLISHED -j ACCEPT # Heroku iptables -A INPUT -i eth0 -p tcp --sport 5000 -m state --state ESTABLISHED -j ACCEPT # Heroku iptables -A INPUT -p udp -s 74.207.242.5/32 --source-port 53 -d 0/0 --destination-port 1024:65535 -j ACCEPT iptables -A INPUT -p udp -s 74.207.241.5/32 --source-port 53 -d 0/0 --destination-port 1024:65535 -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -i eth0 -p tcp --sport 443 -m state --state ESTABLISHED -j ACCEPT iptables -P INPUT DROP iptables -P FORWARD DROP 9418 is Git's port. 5000 is a port used to manage Heroku apps. And 74.207.242.5 and 74.207.241.5 are our DNS servers. Do you think that this is secure? Can you see any holes here? Update: Why is it important to block OUTPUT? This machine will be used only by me.

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• The great Vanishing Act of INetMgr.exe on my Windows 7 x64 system

  - by marc_s

  I'm facing an odd issue with the IIS Manager on Windows 7 (x64). At home, I have Win7 Professional, and when I check my IIS manager icon in the start menu, I see it links to %windir%\system32\inetsrv\InetMgr.exe When I launch this from the command line, it works like a charm. At work, however, I have Windows 7 Enterprise (x64), and when I check my link in the start menu, the entry is exactly the same. If I click on it - it works like a charm. Now if I'd like to launch it from the command line (cmd.exe or TakeCommand), however - the file just isn't there - a DIR %windir%\system32\inetsrv\*.exe shows a number of files, including a "inetmgr6.exe" - but no "inetmgr.exe" - and of course, I can't launch it either :-( Strangely enough, when I look at the directory %windir%\system32\INetSrv in Windows Explorer or Windows Powershell, I SEE the INetMgr.exe file and I can launch it - no problem. What the **** is going on here? How can I find the INetMgr.exe from my classic command line and launch it from there?? UPDATE: ok, some updates. On my work laptop, the INetMgr.exe file appears to really be located in a directory called c:\windows\syswow64\inetsrv (I'm recalling from memory, so don't quote me on the directory name - something like that). I can see this if I search for it in e.g. Powershell or Windows 7 Explorer. However, from a "classic" command line like cmd.exe, it appears to be in c:\windows\system32\inetsrv ..... hmmm.... trouble is - even though I now know where the file really is, I cannot access that directory from my classic command line - not even if I'm running cmd.exe as admin with elevated privileges....... so I know where the file is, but that still doesn't solve my problem :-(

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• Too many concurrent connections Exchange 2010. What else is there to check?

  - by hydroparadise

  I thought that I had this under control before. But for some reason during our last email marketing promo, I start receiving from our mass email client (built in house).. The message could not be sent to the SMTP server. The transport error code is 0x800ccc67. The server repsonse was 421 4.3.2 The maximum number of concurrent connections has exceeded a limit, closing transmission channel again. There's several places I've checked to make sure that wouldn't be an issue. First I checked that receive connector was set to receive an adequate number of connections on our relay connector (1000 connections). Then, I would later find out about Throttling Policies. I created one and set all the properties I knew to set in terms of the policy following properties to 1000; EWSMaxConcurrency, OWAMaxConcurrency, CPAMaxConcurrency, and CPAMaxConcurrency. Still, the email client starts receiving the error shortly after 100 has been sent and takes about 15-30 seconds. The process is then repeatable, but still the error gets received at the same spot everytime. Is there a rate setting that I am missing? Was there a windows update that I missed looking at? Should the software have it's own throttling feature?

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• apache: can't renew ssl certificate

  - by Caballero

  I have Godaddy SSL certificate for one website on my dedicated server running Centos 5.3 / Apache 2.2.3. I have renewed certificate on Godaddy recently, however now it's showing as expired on my website. I've re-keyed certificate since and reuploaded domain.key, domain.crt and bundle.crt (example file names) files to the server, restarted apache, but the sertificate still shows as expired. I'm running out of clues. I've tried replacing content of .crt files with jiberish and restart apache - it's still showing that certificate is expired, even though it shouldn't be picked up at all. I eventually rebooted dedicated server, still no luck. I'm using free SSL check tool http://www.digicert.com/help/ which clearly shows all the green checks except one - certificate is expired. Has someone any idea what might be causing this? Could there be some kind of caching going on here? UPDATE: after running openssl x509 -in domain.crt -noout -enddate I'm getting this output: notAfter=Jun 2 08:16:51 2013 GMT So I asume this means I have the right certificate on the server and yet the old expired one shows on the web...

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• New SSD, is the MBR broken? DISK BOOT FAILURE

  - by Shevek

  I've been running Windows 7 on a WD 500gb SATA single drive, single partition setup for some time with no issues. I've just installed a new Kingston V Series 64gb SSD and performed a clean install of Win7 to it, deleting the partitions on the 500gb and using that as a data drive. All was well for a few reboots but then I started to get "DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER" messages. If I put the Win7 install DVD back in the drive it boots fine. Tried a clean install again, after replacing SATA cables and swapping SATA ports, with a complete partition wipe of both drives. Again, rebooted fine a few times then back with the "DISK BOOT FAILURE" error. Looked on the web and found some discussions about it so I then started from scratch again. This time I wiped the MBR on both drives using MBRWork, disconnected the 500gb and reinstalled to the SSD. Removed the install DVD and installed all the drivers which involved many reboots, all with no problem. To make sure I also did a few cold boots as well. Reconnected the 500gb, initialised, partitioned and formatted it. Copied data to it and did some more reboots and shutdowns. All was ok. Then out of the blue comes another "DISK BOOT FAILURE" and again, if the Win7 install DVD is in the drive it boots fine. So, is the SSD a bad'un? TIA UPDATE: It was a BIOS issue! I found a hidden away option for HDD boot order, which was separate from the usual HDD/CDRom/FDD boot order option. The WD was set to boot before the SSD... Swapped them round and all is well. Still don't understand how it worked at first though... Thanks Solaris

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• Using gitlab behind Apache proxy all generated urls are wrong

  - by Hippyjim

  I've set up Gitlab on Ubuntu 12.04 using the default package from https://about.gitlab.com/downloads/ {edit to clarify} I've set up Apache to proxy and run the nginx server the package installed on port 8888 (or so I thought). As I had Apache installed already I have to run nginx on localhost:8888. The problem is, all images (such as avatars) are now served from http://localhost:8888, and all the checkout urls Gitlab gives are also localhost - instead of using my domain name. If I change /etc/gitlab/gitlab.rb to use that url, then Gitlab stops working and gives a 503. Any ideas how I can tell Gitlab what URL to present to the world, even though it's really running on localhost? /etc/gitlab/gitlab.rb looks like: # Change the external_url to the address your users will type in their browser external_url 'http://my.local.domain' redis['port'] = 6379 postgresql['port'] = 2345 unicorn['port'] = 3456 and /opt/gitlab/embedded/conf/nginx.conf looks like: server { listen localhost:8888; server_name my.local.domain; [Update] It looks like nginx is still listening on the wrong port if I don't specify localhost:8888 as the external_url. I found this in /var/log/gitlab/nginx/error.log 2014/08/19 14:29:58 [emerg] 2526#0: bind() to 0.0.0.0:80 failed (98: Address already in use) 2014/08/19 14:29:58 [emerg] 2526#0: bind() to 0.0.0.0:80 failed (98: Address already in use) 2014/08/19 14:29:58 [emerg] 2526#0: bind() to 0.0.0.0:80 failed (98: Address already in use) 2014/08/19 14:29:58 [emerg] 2526#0: bind() to 0.0.0.0:80 failed (98: Address already in use) 2014/08/19 14:29:58 [emerg] 2526#0: bind() to 0.0.0.0:80 failed (98: Address already in use) 2014/08/19 14:29:58 [emerg] 2526#0: still could not bind() Apache setup looks like: <VirtualHost *:80> ServerName my.local.domain ServerSignature Off ProxyPreserveHost On AllowEncodedSlashes NoDecode <Location /> ProxyPass http://localhost:8888/ ProxyPassReverse http://127.0.0.1:8888 ProxyPassReverse http://my.local.domain </Location> </VirtualHost> Which seems to proxy everything back ok if Gitlab listens on localhost:8888 - I just need Gitlab to start displaying the right URL, instead of localhost:8888.

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• Requesting better explanation for expires headers

  - by syn4k

  I have successfully implemented expires headers however, for several days I have been stumped by one thing. This article: http://www.tipsandtricks-hq.com/how-to-add-far-future-expires-headers-to-your-wordpress-site-1533 states Keep in mind that when you use expires header the files are cached in the browser until it expires so do not use this on files that changes frequently. Other sites indicate the same in my reading. But this doesn't seem to be true. I have updated an image, using the same name, several times. Each time I update and refresh my browser, the new image (with the same name) displays. I understand from this article that the old image should display unless I use a new name. Do you happen to know where the misunderstanding is? I have verified that the image in question has expires headers set on it: Request Headers: Host domain.com User-Agent Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.28) Gecko/20120306 Firefox/3.6.28 FirePHP/0.5 Accept image/png,image/*;q=0.8,*/*;q=0.5 Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 115 Connection keep-alive Referer http://domain.com/index.php Cookie __utma=1.61479883.1332439113.1332783348.1332796726.4; __utmz=1.1332439113.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);PHPSESSID=lv2hun9klt2nhrdkdbqt8abug7; __utmb=1.33.10.1332796726; __utmc=1; ck_authorized=true x-insight activate If-Modified-Since Mon, 26 Mar 2012 21:55:33 GMT Cache-Control max-age=0 Response Headers: Date Mon, 26 Mar 2012 22:06:50 GMT Server Apache/2.2.3 (CentOS) Connection close Expires Wed, 25 Apr 2012 22:06:50 GMT Cache-Control max-age=2592000

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• Vyatta internet connection + hosted site on same IP

  - by boburob

  Having a small issue setting up a vyatta. The company internet and two different websites are both on the same IP. Server 1 - Has websites hosted on ports 1000 and 3000 and also has a proxy server installed to provide internet connection to the domain Server 2 - Has a website hosted on ports 80 and 433 The vyatta is correctly natting the appropriate traffic to each server, and allowing the proxy to get internet traffic, however I have a problem getting to the websites hosted on these two servers inside the domain. I believe the problem is that the HTTP request is being sent with an IP, eg: 12.34.56.78. The request will reach the website and the server will attempt to send the request back to the IP, however this is the IP of the Vyatta, so it has nowhere else to go. I thought the solution would be something like this: rule 50 { destination { address 12.34.56.78 port 1000 } inbound-interface eth1 inside-address { address 10.19.2.3 } protocol tcp type destination } But this doesnt seem to do it! UPDATE I changed the rules to the following: rule 50 { destination { address 12.34.56.78 port 443 } outbound-interface eth1 protocol tcp source { address 10.19.2.3 } type masquerade } rule 51 { destination { address 12.34.56.78 port 443 } inbound-interface eth1 inside-address { address 10.19.2.2 } protocol tcp type destination } I am now seeing traffic going between the two with Wireshark, but the website will still fail to load.

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• Better logging for cronjob output using /usr/bin/logger

  - by Stefan Lasiewski

  I am looking for a better way to log cronjobs. Most cronjobs tend to spam email or the console, get ignored, or create yet another logfile. In this case, I have a Nagios NSCA script which sends data to a central Nagios sever. This send_nsca script also prints a single status line to STDOUT, indicating success or failure. 0 * * * * root /usr/local/nagios/sbin/nsca_check_disk This emails the following message to root@localhost, which is then forwarded to my team of sysadmins. Spam. forwarded nsca_check_disk: 1 data packet(s) sent to host successfully. I'm looking for a log method which: Doesn't spam the messages to email or the console Don't create yet another krufty logfile which requires cleanup months or years later. Capture the log information somewhere, so it can be viewed later if desired. Works on most unixes Fits into an existing log infrastructure. Uses common syslog conventions like 'facility' Some of these are third party scripts, and don't always do logging internally. UPDATE 2010-04-30 In the process of writing this question, I think I have answered myself. So I'll answer myself "Jeopardy-style". Is there any problem with this method? The following will send any Cron output to /usr/bin//logger, which will send to syslog, with a 'tag' of 'nsca_check_disk'. Syslog handles it from there. My systems (CentOS and FreeBSD) already handle log rotation. */5 * * * * root /usr/local/nagios/sbin/nsca_check_disk 2>&1 |/usr/bin/logger -t nsca_check_disk /var/log/messages now has one additional message which says this: Apr 29, 17:40:00 192.168.6.19 nsca_check_disk: 1 data packet(s) sent to host successfully. I like /usr/bin/logger , because it works well with an existing syslog configuration and infrastructure, and is included with most Unix distros. Most *nix distributions already do logrotation, and do it well.

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• Setting cfengine3 class based on command output

  - by gnomie

  This question is very similar to How can I use the output of a command in cfengine3 but the answer does not apply in my case I believe. I want to update a git repository via "git pull" and based on whether that lead to changes trigger some follow up action. Simplified, if there was something like "match output and set class" via some body if_output_matches I would want to use something like this: bundle agent updateRepo { commands: "/usr/bin/git pull" contain => setuidgiddir_sh("$(globals.user)","$(globals.group)","$(target)"), classes => if_output_matches("Already up-to-date.","no_update"); reports: no_update:: "nothing updated"; } body contain setuidgiddir_sh(owner,group,folder) { exec_owner => "$(owner)"; exec_group => "$(group)"; useshell => "true"; chdir => "$(folder)"; } So, is it possible to use the output of a - possibly expensive command - and base some decision on that? The execresult function is no good choice for me as a) the pull may become expensive at times (not recommended following the cfengine3 reference) and b) does not allow to specify user, group, working dir - which is important in my case. The repository is in user space and not owned by root.

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• What's the issue with this Samba setup?

  - by Dan Nestor

  I asked this on superuser, but I realized that may be the wrong place. I am duplicating the question here, I hope this is allowed. I am trying to share a directory through samba. In smb.conf I have the following: [global] workgroup = WORKGROUP security = user passdb backend = tdbsam netbios name = <hostname> [share_name] path = </path/to/share> writable = yes valid users = <username> <username>, the user in question, is the owner of directory /path/to/share. Permissions on the directory are 755. If I try to connect from another computer, the connection attempt is unsuccessful (I assume it's an authentication error, because it re-prompts me for the password). The client requires a domain name for authentication, I tried both WORKGROUP and the hostname/netbios name of the samba server. Samba logs on the server have no mention of the failed connection attempt. Firewall on the server is down. What am I doing wrong? Update: have since run smbpasswd -a <username> and now I am getting a clear error message, "not enough permissions to view contents of share".

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• Access to File being restricted after Ubuntu crashed

  - by Tim

  My Ubuntu 8.10 crashed due to the overheating problem of the CPU when I am opening some directory and intend to do some file transfer under Nautilus. After reboot, under gnome, all the files cannot be removed, their properties cannot be viewed and they can only be opened, although all are still fine under terminal. I was wondering why is that and how can I fix it? Thanks and regards UPdate $ cat /etc/mtab /dev/sda7 / ext3 rw,relatime,errors=remount-ro 0 0 tmpfs /lib/init/rw tmpfs rw,nosuid,mode=0755 0 0 /proc /proc proc rw,noexec,nosuid,nodev 0 0 sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0 varrun /var/run tmpfs rw,nosuid,mode=0755 0 0 varlock /var/lock tmpfs rw,noexec,nosuid,nodev,mode=1777 0 0 udev /dev tmpfs rw,mode=0755 0 0 tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0 devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=620 0 0 fusectl /sys/fs/fuse/connections fusectl rw 0 0 lrm /lib/modules/2.6.27-15-generic/volatile tmpfs rw,mode=755 0 0 /dev/sda8 /home ext3 rw,relatime 0 0 /dev/sda2 /windows-c vfat rw,utf8,umask=007,gid=46 0 0 /dev/sda5 /windows-d fuseblk rw,allow_other,blksize=4096 0 0 securityfs /sys/kernel/security securityfs rw 0 0 binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,noexec,nosuid,nodev 0 0 gvfs-fuse-daemon /home/tim/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,user=tim 0 0

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• Why can't I bind to 127.0.0.1 on Mac OS X?

  - by Noah Lavine

  Hello, I'm trying to set up a simple web server on Mac OS X, and I keep getting an error when I run bind. Here's what I'm running (this transcript uses GNU Guile, but just as a convenient interface to posix). (define addr (inet-aton "127.0.0.1")) ; get internal representation of 127.0.0.1 (define sockaddr (make-socket-address AF_INET addr 8080)) ; make a struct sockaddr (define sock (socket PF_INET SOCK_STREAM 0)) ; make a socket (bind sock sockaddr) ; bind the socket to the address That gives me the error In procedure bind: can't assign requested address. So I tried it again allowing any address. (define anyaddr (make-socket-address AF_INET INADDR_ANY 8080)) ; allow any address (bind sock anyaddr) And that works fine. But it's weird, because ifconfig lo0 says lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 inet 127.0.0.1 netmask 0xff000000 So the loopback device is assigned to 127.0.0.1. So my question is, why can't I bind to that address? Thanks. Update: the output of route get 127.0.0.1 is route to: localhost destination: localhost interface: lo0 flags: <UP,HOST,DONE,LOCAL> recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire 49152 49152 0 0 0 0 16384 0

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• Word Document Turns to Read-Only

  - by Psycho Bob

  I am running into an issue with a user whose Word document is somehow turning itself into Read-Only. The user is using Word 2003 and is accessing a document that is in a Server 2008 share. The document itself starts out as a normal, editable document (user has Full Control permissions), and the user is able to save and do the 'normal' things you would do to a document. However, after a couple of saves, the document turns to Read-Only (according to the title bar) even though the Read-Only attribute is not checked on the document's properties. Here is some additional information about the situation: *User has approximately 5-8 Word documents open at a time *User saves the document frequently (sometimes at a frequency of once per minute) *Once the document is closed it will open as a normal document if reopened *When the document does turn to Read-Only the user will do a "Save As" on the document and save it as FILENAME # where # is some increment of how many times this has happened (some documents are up to their 30th iteration) I understand that there is probably some room for user education here and that they could just be copying the RO document to a new one, closing and opening the RO doc, then copying all the information back. However, I would like to get to the route cause of the problem and try to stop it from happening in the first place. UPDATE: Apparently the reinstall did not fix the issue. I researched the issue a bit more and found that disabling the background save may take care of it, but I haven't had a chance to try it yet. Does anyone else have any other ideas?

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• What's needed in a complete ASP.NET environment?

  - by Christian W

  We have a ASP3.0 application with a few ASP.NET (2.0) dittys mixed in. (Our longtime goal is to migrate everything to ASP.NET but that's not important for this issue) Our current test/deploy workflow is like this: 1 Use notepad++ or VS2008 to fix a bug/feature (depending on what I have open) 2 Open my virtual test-server 3 Copy the fixed file over, either with explorer, or if I can be bothered to open it, WinMerge 4 Test that the fix works 5 Close the virtual test-server 6 Connect to our host with VPN 7 Use WinMerge to update the files necessary 8 Pray to higher powers that the production environment is not so different that something bombs. To make things worse, only I have access to my "test-server". So I'm the only one testing it. I really want to make this a bit more robust, I even have a subversion setup running. But I always forget to commit changes... And I don't even work in my checked out folder, but a copy of what is currently in production... Can someone recommend some good reading on deploying, testing, staging and stuff like that. I currently use VS2008 and want to use subversion or GIT (or any other free VCS). Since I'm the only developer, teamsystem is not really an option (cost-related). I have found myself developing an "improved" feature, only to find a bug in the same feature in the production system. And since my "improved" feature incorporated deleting some old functionality, I have to fix bugs directly in production... That's not a fun feeling... (I have inherited this system recently... So it's not directly my fault that it is like this ;) )

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• Nginx + php-fpm - recv() error

  - by Ilya Biryukov

  I get the follow error in the nginx log [error] 17734#0: *6643 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: [cut], server: [cut], request: "GET /venues HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "[cut]" I have a dedicated box with 8 gb ram, quad core chip. Good server. Nginx, php-fpm & mysql all latest versions running under ubuntu 10.04 I only get this when I stress test the server with siege. If I increase the number of concurrent connections to 100, I can get up to 20% of all requests to fail. Furthermore, I don't get this on pages that have no mysql queries. And only a few failures on pages with moderate number of queries. Bit, I'm not sure if that's got to do anything with it. I have a feeling this is something to do with php. But I can't figure it out. Any suggestions of where to even start looking? Update: and the php error log is silent. No record of anything going wrong

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