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• I have a perl script that is supposed to run indefinitely. It's being killed... how do I determine who or what kills it?

  - by John O

  I run the perl script in screen (I can log in and check debug output). Nothing in the logic of the script should be capable of killing it quite this dead. I'm one of only two people with access to the server, and the other guy swears that it isn't him (and we both have quite a bit of money riding on it continuing to run without a hitch). I have no reason to believe that some hacker has managed to get a shell or anything like that. I have very little reason to suspect the admins of the host operation (bandwidth/cpu-wise, this script is pretty lightweight). Screen continues to run, but at the end of the output of the perl script I see "Killed" and it has dropped back to a prompt. How do I go about testing what is whacking the damn thing? I've checked crontab, nothing in there that would kill random/non-random processes. Nothing in any of the log files gives any hint. It will run from 2 to 8 hours, it would seem (and on my mac at home, it will run well over 24 hours without a problem). The server is running Ubuntu version something or other, I can look that up if it matters.

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• Get Matrox Millenium video card working in Ubuntu 9.10

  - by wcoenen

  I have installed Ubuntu 9.10 on an old PC and it is mostly working, except for some heavy drawing defects that show up whenever I start dragging a window or scrolling inside a window or menu. It looks like the video driver copies the rectangle being moved to the wrong location. I have taken a look in /var/log/Xorg.0.log and the following line shows the detected video card: (--) PCI:*(0:0:8:0) 102b:0519:0000:0000 Matrox Graphics, Inc. MGA 2064W [Millennium] rev 1, Mem@ 0xf9800000/16384, 0xfb000000/8388608, BIOS @0x????????/65536 (==) Using default built-in configuration (30 lines) (==) --- Start of built-in configuration --- Section "Device" Identifier "Builtin Default mga Device 0" Driver "mga" EndSection How do I fix the drawing defects? It turned out that the 24 bit color depth (automatically selected by ubuntu 9.10) was the problem; apparantly the mga driver doesn't handle this well for cards with little memory. I took the following steps to resolve the issue (you can skip the first three steps if you already have a semi-working xorg.conf file): Reboot ubuntu in recovery mode, to get a root console without X running. Run Xorg -configure to generate a xorg.conf.new file Copy the file to /etc/X11/xorg.conf with cp xorg.conf.new /etc/X11/xorg.conf (assuming it didn't exist yet; that's why I generated it) Open the new config file with sudo nano /etc/X11/xorg.conf and make sure the screen section is configured for 16 bit color depth like this: Section "Screen" Identifier "Screen0" Device "Card0" Monitor "Monitor0" DefaultDepth 16 SubSection "Display" Viewport 0 0 Depth 16 Modes "1024x768" EndSubSection EndSection I can't guarantee those were the only important changes I made - I tried a few things in my attempts to create a valid xorg.conf file. But I'm pretty sure that the screen section was the important part.

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• WINDOWS: Your computer hangs. You can windows + R (run dialog) but performance is so halted taskMGR

  - by John Sullivan

  The question is, what process are available to try to recover from total system instability before pulling the plug when we can do nothing but programs or batches in the path from the run dialog (windows + r key), and performance is so dead that taskMGR / procEXP / other programs with visual guis are not usable? I am not a windows expert, but ideally someone out there has written a program that does more or less stuff like this: Immediately set (or perhaps I can set from the run prompt) its priority to extremely high, evaluate performance bottlenecks. E.g. is CPU 100%? If so identify offending program(s) or problems. Attempt / log fixes, then provide crude feedback asking the user if his performance has stabilized enough to abort, wait a few seconds, if no feedback continue, etc. etc. Eventually try to do any "system cleanup" if the program decides it cannot recover and perhaps finally provide a series of beeps to the user, or what have you, to say "OK, I give up, time to pull the plug". Ideally create a log, when able. These kinds of horrible hangs are a situation where surely trying something, anything, is better than nothing -- as long as that something is intelligent -- when the alternative is ripping out the power coord. Again, I am not a windows expert, so perhaps there is a much more elegant "hands on" approach I am not aware of.

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• Is there a convenient method to pull files from a server in an SSH session?

  - by tel

  I often SSH into a cluster node for work and after processing want to pull several results back to my local machine for analysis. Typically, to do this I use a local shell to scp from the server, but this requires a lot of path manipulation. I'd prefer to use a syntax like interactive FTP and just 'pull' files from the server to my local pwd. Another possible solution might be to have some way to automatically set up my client computer as an ssh alias so that something like scp results home:~/results would work as expected. Is there any obscure SSH trick that'll do this for me? Working from grawity's answer, a complete solution in config files is something like local .ssh/config: Host ex HostName ssh.example.com RemoteForward 10101 localhost:22 ssh.example.com .ssh/config: Host home HostName localhost Port 10101 which lets me do commands exactly like scp results home: transferring the file results to my home machine.

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• Why is only one wget command working in my crontab?

  - by afEkenholm

  I wish to fetch content from a PHP script on my server two times a day, altering a query variable lang to set what language we want, and save this content in two language specific files. This is my crontab: */15 * * * * ~root/apache.sh > /var/log/checkapache.log 10 0 * * * wget -O /path/to/file-sv.sql "http://mydomain.com/path/?lang=sv" 11 0 * * * wget -O /path/to/file-en.sql "http://mydomain.com/path/?lang=en" The problem is that only the first wget command line is being executed (or to be precise: the only file that is being written is /path/to/file-sv.sql). If I switch the second and the third row, /path/to/file-en.sql gets written instead. The first line always runs as expected, no matter where it is. I then tried using lynx -dump "http://mydomain.com/path/?lang=xx" > /path/to/file-xx.sql to no avail; still only the first lynx line executed successfully. Even mixing wget and lynx did not change this! Getting kinda desperate! Am I missing something? There are thousands of articles on crontab (combined with) wget or lynx, but all seems to cover basic setups and syntax. Does anyone got a clue of what I am doing wrong? Thanks, Alexander

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• Google Chrome Browser

  - by Harish

  Hi friends. Am using Google Chrome as my default web browser. I don't have any problem with it. The only problem rise is when I enter gmail.com and login into my account. I need to go to Histories in Google chrome (ctrl + shft + del) and select "Del Cokies and Other datas" for entering into gmail again. My gmail page is workin just once. I nedd to log in. Check my mail and I have to clear the cookies in order to log in again If i fail, This is d info I get The webpage at https://mail.google.com/mail/?shva=1&ui=html&zy=l&pli=1&auth=DQAAALgAAABhdI_K9uptgb6yQfGVmnl74VZEUH7U2M7WGJn3kJnCiY0CNI5QBU3X-g6UjPENGoHKSHE9nRna_Ygu_d59mN-HG1SUzNpI_UEMJ9CwDqZAYxYLEJl8r_JA2qJNGF8H0fdKfn99Gb2YeI-lprGxCrWRT7LicyADxQvNLQ6l9xBvOccEBSJfdIrna8dOXeX06N41L0zpnLQrVG1qdulR7LxId9XwtVb6QtfhwnambqLoNiY402Y5pjGG1_gFL4dNpJA&gausr=hariss89%40gmail.com has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer. Here are some suggestions: Reload this web page later. Learn more about this problem. Wat can I do ...

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• Sharing / replicating EBS across AWS nodes

  - by skrat

  I would like to use single EBS storage across multiple EC2 nodes (web/app servers). I've read some articles on snapshot sharing, but that doesn't suit well for what we need. We use filesystem for storing DB record attachments, so if one such attachment gets created, we need it to be immediately available to all nodes (to serve). So far only NFS seem to be viable, but it's a pain to configure and maintain. Another option could be storing those attachments on S3 instead, but that would cut us of doing any analysis on that data. This must be quite common problem when scaling in AWS, what solutions are there?

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• Locked out of our Comcast Business Gateway for seemingly no reason

  - by Tyler

  A little backstory... Last fall we migrated our ISP from AT&T to Comcast at one of our offices. At that time, we received a new modem/router from Comcast and we configured everything to our liking. We've never really had very many issues with the router aside from having to restart it every once in a while. Here's the problem... About three months ago I changed the password on the router from the default. After that, I logged into the router several times to make changes with no issue. During May I logged into the router to add two new static routes, no problems. A week ago, I tried to log into the router and could not. I tried the non-default password that I changed it to, the default, anything and everything I could think of and no luck. I restarted the router on Monday thinking it may just be locked up, but after the restart it would still not let me log in. This router is at our other office about 2 hours from here and I want to avoid having to drive down there and reset to factory defaults, reconfigure, etc. Any ideas?

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• Nginx Config - I can't access WordPress admin area

  - by WebDevDude

  I am a complete noob when it comes to Nginx, but I'm trying to make the switch over for my WordPress site. Everything works, even the permalink, but I can't access my WordPress admin directory (I get a 403 error). I have my WordPress install in a subfolder, so that complicates things a bit for me. Here is my Nginx config file: server { server_name mydomain.com; access_log /srv/www/mydomain.com/logs/access.log; error_log /srv/www/mydomain.com/logs/error.log; root /srv/www/mydomain.com/public_html; location / { index index.php; # This is cool because no php is touched for static content. # include the "?$args" part so non-default permalinks doesn't break when using query string try_files $uri $uri/ /index.php?$args; } location /myWordpressDir { try_files $uri $uri/ /myWordpressDir/index.php?$args; } location ~ \.php$ { include /etc/nginx/fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /srv/www/mydomain.com/public_html$fastcgi_script_name; fastcgi_split_path_info ^(/myWordpressDir)(/.*)$; } location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ { access_log off; log_not_found off; expires max; } }

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• Redirect traffic to local address so iOS speedtest app measures LAN speed

  - by ivan_sig

  I have mounted a Speedtest Mini server on a local LAMP, so I can test my LAN speeds effortlessly just by opening the URL with a Flash enabled web browser, the thing is, I want my iOS and Android devices to test with the LAN server too, not with the WAN, as I'm trying to measure LAN-Only performance. Is there a way so I can redirect the traffic intended to an specific external IP (The one of the real server) to my local server?. I know the servers IP as a short Wireshark analysis gave me the data, but still searching for a way to make that redirect. I have Jailbreak and root on my devices, so playing with system files is not a problem. I've tried mounting a proxy and making redirects by the hosts file and domain names, but it looks like Ookla's app relies on IP address only.

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• Packet flooding while configuring a Debian L2TP/IPSec client?

  - by Joseph B.

  I'm currently at my wits end trying to configure an L2TP over IPSec VPN connection on my Debian using openswan and xl2tp box connecting to a server of unknown configuration. I've managed to successfully establish the connection and everything appears to be working well until I attempt to set the VPN connection as my default route, at which point I see a massive flood of packets simultaneously being transmitted (on the tune of ~1.5 GB in about 2min) until the server drops my connection. Prior to this network traffic on all my interfaces is minimal. According to iftop the majority of this traffic appears to be coming out of port 12, although I can't seem to figure out how to finger a specific process. If I instead just route traffic destined for 74.0.0.0/8 through it I'm able to access Google's servers through the VPN without issue. My xl2tp.conf file is: [lac vpn-nl] lns = example.vpn.com name = myusername pppoptfile = /etc/ppp/options.l2tpd.client My options.l2tpd.client file is: ipcp-accept-local ipcp-accept-remote refuse-eap require-mschap-v2 noccp noauth idle 1800 mtu 1410 mru 1410 usepeerdns lock name myusername password mypassword connect-delay 5000 And my routing table looks like: Destination Gateway Genmask Flags Metric Ref Use Iface 10.5.2.1 * 255.255.255.255 UH 0 0 0 ppp0 10.0.50.0 * 255.255.255.0 U 0 0 0 eth0 10.50.0.0 * 255.255.0.0 U 0 0 0 eth0 10.0.0.0 * 255.255.0.0 U 0 0 0 eth0 192.168.0.0 * 255.255.0.0 U 0 0 0 eth0 loopback * 255.0.0.0 U 0 0 0 lo default * 0.0.0.0 U 0 0 0 ppp0 I'm seeing absolutely nothing in auth.log and syslog during this time and can't seem to find any other log files it might be writing to. Any suggestions would be appreciated!

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• Kill program after it outputs a given line, from a shell script

  - by Paul

  Background: I am writing a test script for a piece of computational biology software. The software I am testing can take days or even weeks to run, so it has a recover functionality built in, in the case of system crashes or power failures. I am trying to figure out how to test the recovery system. Specifically, I can't figure out a way to "crash" the program in a controlled manner. I was thinking of somehow timing a SIGKILL instruction to run after some amount of time. This is probably not ideal, as the test case isn't guaranteed to run the same speed every time (it runs in a shared environment), so comparing the logs to desired output would be difficult. This software DOES print a line for each section of analysis it completes. Question: I was wondering if there was a good/elegant way (in a shell script) to capture output from a program and then kill the program when a given line/# of lines is output by the program?

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• Apache, logerror and logrotate: what is the best method?

  - by OlivierDofus

  Here's a vhost example of my sites: <VirtualHost *:80> DocumentRoot /datas/web/woog ServerName woog.com ServerAlias www.woog.com ErrorLog "|/httpd-2.2.8/bin/rotatelogs /logs/woog/error_log 86400" CustomLog "|/httpd-2.2.8/bin/rotatelogs /logs/woog/access_log 86400" combined DirectoryIndex index.php index.htm <Location /> Allow from All </Location> <Directory /*> Options FollowSymLinks AllowOverride Limit AuthConfig </Directory> </VirtualHost> I've got 12 sites running now. This gives something like: [Shake]:/sources/software/mod_log_rotate# ps x | grep rotate /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/error_log 86400 /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/error_log 86400 [snap (as many error_log as virtual hosts)] /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/access_log 86400 /httpd-2.2.8/bin/rotatelogs /logs/[hidden siteweb]/access_log 86400 [snap (as many access_log as virtual hosts)] grep rotate [Shake]:/sources/software/mod_log_rotate# !!! I've been looking everywhere but I've only found mod_log_rotate. The "little" problem is that the author (very good C developper) explains: "Unfortunately Apache error logs are handled in such a way that we can't work the same log rotation magic on them. Like transfer logs they support piped logging though so you can still use rotatelogs for them. " So my question is: what would be the best way to handle multiple logs? If I just do a very classical log and I use the system's "logrotate" program couldn't this be a good deal? How would/do you deal with that? Thank you!

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• mod_rewrite redirect subdomain to folder

  - by kitensei

  I have a wordpress blog at the url http://www.orpheecole.com, I would like to setup 3 subdomains (cycle1, cycle2, cycle3) being redirected to their folders (1 subdomain = 1 wp blog, no multisite enabled) The file tree looks like this: /var/www/orpheecole.com/ /var/www/cycle1.orpheecole.com/ /var/www/cycle2.orpheecole.com/ /var/www/cycle3.orpheecole.com/ the following .htaccess try to redirect to /var/www/orpheecole.com/cycleX instead of its own directory, but id it's possible i'd rather redirect every subdomain to its own www folder. my sites-enabled file for main site is # blog orpheecole <VirtualHost *:80> ServerAdmin [email protected] ServerName orpheecole.com ServerAlias *.orpheecole.com DocumentRoot /var/www/orpheecole.com/ <Directory /var/www/orpheecole.com/> Options -Indexes FollowSymLinks MultiViews Order allow,deny allow from all </Directory> ErrorLog /var/log/apache2/orpheecole.com-error_log TransferLog /var/log/apache2/orpheecole.com-access_log </VirtualHost> and the .htaccess located on /var/www/orpheecole.com/ looks like this <IfModule mod_rewrite.c> RewriteEngine on RewriteCond %{HTTP_HOST} !^www.* [NC] RewriteCond %{HTTP_HOST} ^([^\.]+)\.orpheecole\.com$ RewriteCond /var/www/orpheecole.com/%1 -d RewriteRule ^(.*) www\.orpheecole\.com/%1/$1 [L] # BEGIN WordPress RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] # END WordPress </IfModule> I tried to remove wordpress directives but nothing change, and the rewrite mod is enabled and working.

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• Windows module installer delaying login, server 2008 R2

  - by Kyle

  We updated our servers this weekend (windows updates), everything went fine except one of our terminal servers now hangs at login with the message, "waiting for windows modules installer." It eventually times out and leaves an event log message that the service has stopped unexpectedly. I have disabled the service and users can now login in a reasonable time frame. However we will need to re-enable the service in order to install further updates. I'm not sure where to start with this one, I'm an entry level admin and my colleagues are on vacation today, thank God this isn't a serious problem. Further details: -It affects all users. -The only third party software on the server is our ERP software and screwdrivers from Tricerat. -The only event log message is that the service has stopped unexpectedly. -The server manager screen does not display any information about roles it just says, "error". -The remote desktop roles all seem to be functioning properly, Remote app works as well as standard RDP. Let me know if there is any further details I can provide, I will be checking this frequently throughout the day.

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• Emails sent from Coldfusion using the same SMTP/Exchange server works from one machine but fails for another

  - by Peter Herdenborg

  First, apologies if this question is too vague or has too little information to really be answerable. I am not normally working with these issues, and I don't have full access to the environment. However, the hosting provider seems to have a hard time tracking down the issue, so I am hoping that someone can at least provide me with some qualified guesses about the most likely problem. Here goes: A client I work for has a hosted IT environment, based on virtual machines running Windows 2008 R2 Standard. Our website, based on Coldfusion 9 was recently migrated from one virtual machine to another, and though Coldfusion is configured in the exact same way, using the same SMTP server, i.e. the client's Exchange server hosted in the same environment and in the same AD as both web servers, sending emails to external recipients is no longer working. It is still working fine when testing from the old machine. This is what I've learnt so far (all emails are sent using a valid from-address on the client's domain): Emails sent to other recipients on the same domain are delivered without any problem. Emails sent to external recipients on other domains are never delivered. When sending emails to both internal and external recipients, no emails are delivered. When receiving one of these emails to an internal address, the sender is now indicated as "[email protected]", while when sent from the old machine, it used to say just "sender". This seems to me that it could hint that the Exchange machine "recognizes" the old web server while it is a stranger to the new. In Coldfusion's mail log, all messages appear to be successfully delivered to the SMTP server. Any ideas what settings to look at, what log entries to search for or how to compare the old web server with the new one will be highly appreciated.

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• Cant get squid proxy to work

  - by danielgratz

  i need squid proxy on my centos server. But i just can't get it to work. I did yum install squid. Here is my squid.conf file (i removed all comments): acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 acl Safe_ports port 80 acl Safe_ports port 21 acl Safe_ports port 443 acl Safe_ports port 70 acl Safe_ports port 210 acl Safe_ports port 1025-65535 acl Safe_ports port 280 acl Safe_ports port 488 acl Safe_ports port 591 acl Safe_ports port 777 acl CONNECT method CONNECT acl our_networks src 192.168.1.0/24 192.168.2.0/24 http_access allow our_networks http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost http_access deny all icp_access allow all http_port 3128 hierarchy_stoplist cgi-bin ? access_log /var/log/squid/access.log squid acl QUERY urlpath_regex cgi-bin \? cache deny QUERY refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 acl apache rep_header Server ^Apache broken_vary_encoding allow apache coredump_dir /var/spool/squid Then i just put my server's public ip and port 3128 into my web browsers proxy settings... but it isn't working i can't visit any website. Please help. Thanks.

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• Cannot ssh into server

  - by revolver

  I am trying to SSH into a linux machine running ubuntu, but the interactive shell stuck somewhere and I can't key in anything. I am on Mac OS X Lion. This only happens when I am trying to access via an external IP. Local LAN SSH is working perfectly. macbook:~ user$ ssh -v -v user@serverip // i skipped the rest of the log, but I can paste it here again if needed. Authenticated to serverip debug1: channel 0: new [client-session] debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug1: Sending environment. debug1: Sending env LC_CTYPE = UTF-8 debug2: channel 0: request env confirm 0 debug2: channel 0: request shell confirm 1 debug2: fd 3 setting TCP_NODELAY debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 My terminal shell just hang after this, and I can't key in anything. I checked var/log/auth on the server and saw that the a session is being created and I had already logged in, but I don't see any responses on my client machine. I googled around and a lot of the solution had to do with the Broadcom wireless driver, but I am not even using one, so I am pretty clueless here. To give you more information, the linux machine is also running a web server, and I have no problem accessing the web server. Thanks. Any help is appreciated.

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• How intrusive is using VPN?

  - by Slade

  My company lets us work from home sometimes using VPN (during weather emergencies and stuff). When logging in a big window comes up that says the network is private and for employees only and that there's no right to privacy while using VPN. It makes sense that they don't want people poking around their network but I wonder if the company can use the connection to look around my computer while I'm connected. I'm not entirely computer-illiterate but I'm not a networks person at all so the technical documents I've found don't help me. Is that possible, and if so to what degree? UPDATE Thanks Mark. The funneling thing is what I was really asking about. Mostly I was worried that I would already have some IM conversation open or log into eBay forgetting that the VPN was open and that my company IT people would see it or that they would log my eBay password. Thanks again. ANOTHER UPDATE What if my son wants to play online poker or Warcraft etcetera while I have VPN on to work? Can my company think I'm the one playing if I am not typing often?

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• File descriptor linked to socket or pipe in proc

  - by primero

  i have a question regarding the file descriptors and their linkage in the proc file system. I've observed that if i list the file descriptors of a certain process from proc ls -la /proc/1234/fd i get the following output: lr-x------ 1 root root 64 Sep 13 07:12 0 -> /dev/null l-wx------ 1 root root 64 Sep 13 07:12 1 -> /dev/null l-wx------ 1 root root 64 Sep 13 07:12 2 -> /dev/null lr-x------ 1 root root 64 Sep 13 07:12 3 -> pipe:[2744159739] l-wx------ 1 root root 64 Sep 13 07:12 4 -> pipe:[2744159739] lrwx------ 1 root root 64 Sep 13 07:12 5 -> socket:[2744160313] lrwx------ 1 root root 64 Sep 13 07:12 6 -> /var/lib/log/some.log I get the meaning of a file descriptor and i understand from my example the file descriptors 0 1 2 and 6, they are tied to physical resources on my computer, and also i guess 5 is connected to some resource on the network(because of the socket), but what i don't understand is the meaning of the numbers in the brackets. Do the point to some property of the resource? Also why are some of the links broken? And lastly as long as I asked a question already :) what is pipe?

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• crontab not running on VirtualBox unless I'm logged in

  - by Mike

  I am running Ubuntu Server 9.04 in VirtualBox on my work PC as a development environment. I have some scripts that I've put in my user's crontab that run throughout the day while I'm SSHed into the VM. Last night, I closed PuTTy and all of my other running applications (except for VirtualBox and the VM) and went home. I came back this morning to discover that my cron jobs didn't run at all, yet when I SSHed into the VM, the next scheduled job ran. I set the schedule to 5min to test, disconnected again, and the jobs stopped running on schedule. They seem to only run if I'm logged in to the machine. Obviously, I want them to run on schedule even if I'm not logged in to the VM, otherwise there's no point. Is there something I've failed to configure correctly? New Information: There are now 3 entries in /var/log/cron.log saying the following "Mount of private directory return code [256]"... the entries correspond to when the cron job is supposed to run. I thought they are supposed to run as my userid? Why would my own userid be unable to run a script in my home directory?

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• Can SQL Server (2008) transaction logs handle the database being dropped and re-created?

  - by Ben

  We're trying to restore a database (created programatically by running a hand-crafted SQL script we have). Our backup routine is to create a full backup of every database on the SQL Server 2008 instance on a Saturday then automatic transaction logs (I assume these are created automatically anyway - we appear to have lots of log files, possibly one per transaction after the full backup was taken?). On Tuesday this week the database in question was dropped and another one with the exact same name and schema was created. SQL Server has continued to create transaction log files but it hasn't had chance to create a new full backup (that won't happen until next Saturday). Now as it turns out we need to restore the database to how it was on Thursday. This is after the "drop and re-create". My question is, is this possible? If it isn't, what exactly does SQL Server think that it's writing to those transaction logs created since the drop and re-create? (I understood they were kind of files containing a binary delta, which makes me think maybe we can restore from them?) I'm no DBA but then neither is our IT department, so I'm doing the best I can to resolve this. Any advice much appreciated!

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• Host is missing hostname and/or domain

  - by anlawang

  i use puppet 0.25.4 on ubuntu 10.04,when puppet installed ,i got the infor below : Nov 29 10:30:30 puppet puppetmasterd[4422]: Host is missing hostname and/or domain: pclient.example.com Nov 29 10:30:30 puppet puppetmasterd[4422]: Compiled catalog for pclient.example.com in 0.02 seconds i dont know how to fix it ,who can help me thank you ! my configuration : I use apt-get to install the puppet,so some configuration have been fixed puppet.conf on client : > [main] server=puppet.example.com > logdir=/var/log/puppet > vardir=/var/lib/puppet > ssldir=/var/lib/puppet/ssl > rundir=/var/run/puppet > factpath=$vardir/lib/facter > pluginsync=false > templatedir=$confdir/templates > prerun_command=/etc/puppet/etckeeper-commit-pre > postrun_command=/etc/puppet/etckeeper-commit-post > certname=pclient.example.com > node_name=cert [puppetd] > runinterval=30 puppet.conf on server: > [main] logdir=/var/log/puppet > vardir=/var/lib/puppet > ssldir=/var/lib/puppet/ssl > rundir=/var/run/puppet > factpath=$vardir/lib/facter > pluginsync=true > templatedir=$confdir/templates > prerun_command=/etc/puppet/etckeeper-commit-pre > postrun_command=/etc/puppet/etckeeper-commit-post i user the default node on site.pp i am a newer to puppet,so i dont know the reason for these problems!! thank you again!!!

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• Run Python script at startup using upstart

  - by MarcusMaximus

  I'm trying to create an upstart script to run a python script on startup. In theory it looks simple enough but I just can't seem to get it to work. I'm using a skeleton script I found here and altered. description "Used to start python script as a service" author "Me <[email protected]>" # Stanzas # # Stanzas control when and how a process is started and stopped # See a list of stanzas here: http://upstart.ubuntu.com/wiki/Stanzas#respawn # When to start the service start on runlevel [2345] # When to stop the service stop on runlevel [016] # Automatically restart process if crashed respawn # Essentially lets upstart know the process will detach itself to the background expect fork # Start the process script exec python /usr/local/scripts/script.py end script The test script I want it to run is currently a simple python script that runs without any issue when run from a terminal. #!/usr/bin/python2 import os, sys, time if __name__ == "__main__": for i in range (10000): message = "UpstartTest " , i , time.asctime() , " - Username: " , os.getenv("USERNAME") #print message time.sleep(60) out = open("/var/log/scripts/scriptlogfile", "a") print >> out, message out.close() The location/var/log/scripts has permissions 777 The file /usr/local/scripts/script.py has permissions 775 The upstart script /etc/init.d/pythonupstart.conf has permissions 755

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• How to make Windows command prompt treat single quote as though it is a double quote?

  - by mark

  My scenario is simple - I am copying script samples from the Mercurial online book (at http://hGBook.red-bean.com) and pasting them in a Windows command prompt. The problem is that the samples in the book use single quoted strings. When a single quoted string is passed on the Windows command prompt, the latter does not recognize that everything between the single quotes belongs to one string. For example, the following command: hg commit -m 'Initial commit' cannot be pasted as is in a command prompt, because the latter treats 'Initial commit' as two strings - 'Initial and commit'. I have to edit the command after paste and it is annoying. Is it possible to instruct the Windows command prompt to treat single quotes similarly to the double one? EDIT Following the reply by JdeBP I have done a little research. Here is the summary: Mercurial entry point looks like so (it is a python program): def run(): "run the command in sys.argv" sys.exit(dispatch(request(sys.argv[1:]))) So, I have created a tiny python program to mimic the command line processing used by mercurial: import sys print sys.argv[1:] Here is the Unix console log: [hg@Quake ~]$ python 1.py "1 2 3" ['1 2 3'] [hg@Quake ~]$ python 1.py '1 2 3' ['1 2 3'] [hg@Quake ~]$ python 1.py 1 2 3 ['1', '2', '3'] [hg@Quake ~]$ And here is the respective Windows console log: C:\Workpython 1.py "1 2 3" ['1 2 3'] C:\Workpython 1.py '1 2 3' ["'1", '2', "3'"] C:\Workpython 1.py 1 2 3 ['1', '2', '3'] C:\Work One can clearly see that Windows does not treat single quotes as double quotes. And this is the essence of my question.

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