Search Results

Search found 30329 results on 1214 pages for 'ubuntu forums'.

Page 356/1214 | < Previous Page | 352 353 354 355 356 357 358 359 360 361 362 363  | Next Page >

• How to take mysql replication backup

  - by user53864

  I have a MySQL master-master replication setup with a slave for each master(only one master used for read/writes at a time) on Ubuntu server. Wondering what would be the best way to schedule backup of replication databases with mysqldump. I have following clarifications because of which could not proceed further. Scheduling mysqldump backup on masters safe for replication? Connecting masters with GUI applications(workbench) for database manipulations(read, writes.. by developers) is safe? Any inputs are welcome.

  Read the article

• Minimize VirtualBox Hard Drive disk

  - by Aviv

  I have Ubuntu Server 10.04 TLS installed on a Virtual Machine in a VirtualBox. The size of the Hard Drive is dynamic growing hard drive and the maximum is 32GB. At the beginning i had 4GB on the Hard Drive and the size of the .vdi was 4GB. Lately the size of data on the disk is 15GB but the size of the .vdi is almost 32GB. Why is that? How can i pack / optimize / defrag the HD so it will be the same size of the data on the disk? Thanks.

  Read the article

• Weird stuff in in my /var/log/auth.log

  - by xXx

  I just check my logs on my deed serv, i spotted some weird log in the auth.log : Jun 17 22:27:01 mutualab CRON[16249]: pam_unix(cron:session): session opened for user user by (uid=0) Jun 17 22:27:01 mutualab CRON[16249]: pam_unix(cron:session): session closed for user user Jun 17 22:28:01 mutualab CRON[16253]: pam_unix(cron:session): session opened for user user by (uid=0) Jun 17 22:28:01 mutualab CRON[16253]: pam_unix(cron:session): session closed for user alain Jun 17 22:29:01 mutualab CRON[16257]: pam_unix(cron:session): session opened for user user by (uid=0) Jun 17 22:29:01 mutualab CRON[16257]: pam_unix(cron:session): session closed for user user Looks like somebody try to log - and suceed ? - but delog instantly ? I got the same log for hours now... Do you know what happens ? N.B : it's a 10.04 ubuntu server

  Read the article

• Which FTP Daemon should I use if I want to use MySQL for authentication?

  - by wag2639

  We want to set up a FTP Daemon on our Ubuntu 10.04 server that can use a simple (probably custom) built web interface for a FTP server using MySQL for authentication. It'll be public facing but only intended for use by a few customers or clients. I know vsftpd, ProFTPd, and Pure-FTPd but I'm not sure which is best for this application. Main features we would like: a. Very good MySQL authentication integration b. Able to specify a list folders/files (folder level is sufficient) each user has access to through MySQL Anything else would just be sprinkles on top.

  Read the article

• my.cnf in server directory, why

  - by Mellon

  On my Ubuntu machine, I have installed MySQL . I notice that there are /etc/my.cnf file which contain the content (only two lines): innodb_buffer_pool_size = 1G max_allowed_packet = 512M While there is also /etc/mysql/my.cnf with a long content like: # The MySQL database server configuration file. ... ... For me, it looks like both are configurations for MySQL server, but Why there are two my.cnf in different locations, can't the content to be merged to one my.cnf ? What is the purpose to have seperate my.cnf for MySQL server ?

  Read the article

• how to debug mysql has gone?

  - by fefe

  I have a virtual machine(Ubuntu 12.04, MySQL 5.5) running under VMware and is dedicated to host a mysql server. I connect to this server on internal IP. I'm trying to find out why I get mysql server has gone error. One my windows machines apache it stops because of this issue. I have been trying to fine tune my mysql my.cnf with the following parameters but did not bring the desired result. # Instead of skip-networking the default is now to listen only on # localhost which is more compatible and is not less secure. bind-address = 0.0.0.0 # # * Fine Tuning # wait_timeout = 180 key_buffer = 384M max_allowed_packet = 64M thread_stack = 192K thread_cache_size = 8 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP max_connections = 500 table_cache = 64 #thread_concurrency = 10 # # * Query Cache Configuration # query_cache_limit = 1M query_cache_size = 32M how to debug this issue what is missing from configuration to avoid this error?

  Read the article

• How to invoke a command using specific proxy server?

  - by Xiè Jìléi

  Some applications support proxy (http proxy or socks proxy), and some are not. For browsers, I can specify proxy server in the preferences/options dialog, and other applications may be able to configure proxy servers in config files. For general purpose, can I invoke a command using a specific proxy? Like following: $ proxy-exec --type sock5 --server 1.2.3.4:8000 -- wget/ftp ... I'm using Ubuntu Maverick. P.S. In win32, it can be implemented by hijacking the socket dlls, maybe, I'm not familiar with Linux programming, but I guess it's possible in Linux. though.

  Read the article

• Determine process using a port, without sudo

  - by pat

  I'd like to find out which process (in particular, the process id) is using a given port. The one catch is, I don't want to use sudo, nor am I logged in as root. The processes I want this to work for are run by the same user that I want to find the process id - so I would have thought this was simple. Both lsof and netstat won't tell me the process id unless I run them using sudo - they will tell me that the port is being used though. As some extra context - I have various apps all connecting via SSH to a server I manage, and creating reverse port forwards. Once those are set up, my server does some processing using the forwarded port, and then the connection can be killed. If I can map specific ports (each app has their own) to processes, this is a simple script. Any suggestions? This is on an Ubuntu box, by the way - but I'm guessing any solution will be standard across most Linux distros.

  Read the article

• What's a fast way to copy a lot of files from an internal hard-drive to external (USB) storage?

  - by jonathanconway

  I have a large amount of data - about 500 GB - on the internal hard drive of a desktop PC. This includes music, videos, PDFs... you name it. I want to copy everything to an external USB hard drive (1.5 tb capacity). The desktop PC runs Ubuntu. To being with, I simply plugged in and mounted the hard drive and dragged the top-level folder onto the drive. It's started copying, but it seems to be proceeding very slowly. About 10 minutes later and it's only done about 500 MB. I'm sure this is slower than what I could achieve with less total data. So I'm wondering if there's a quicker way of doing this. Would it be better to copy it in portions of 500MB or so, rather than all at once?

  Read the article

• having trouble setting up ganglia on three machines

  - by Pieter Breed

  I am running ubuntu 11.10 I have one machine with gmetad, gmond and ganglia-webinterface. When I browse the web interface this machine picks up the local gmond output. I then added another machine, running only gmond. I didn't really change anything in the config, only the name of the cluster. This machine's output showed up in the web view. The I tried to add a third machine, similarly to the second, but it's not showing up in the web view. I tried looking at syslog and running as a daemon, but I'm not seeing anything suspicious there. Any tips for trouble shooting this?

  Read the article

• HAProxy and Intermediate SSL Certificate Issue

  - by Sam K

  We are currently experiencing an issue with verifying a Comodo SSL certificate on an Ubuntu AWS cluster. Browsers are displaying the site/content fine and showing all the relevant certificate information (at least, all the ones we've checked), but certain network proxies and the online SSL checkers are showing we have an incomplete chain. We have tried the following to try to resolve this: Upgraded haproxy to the latest 1.5.3 Created a concatenated ".pem" file containing all the certificate (site, intermediate, w/ and w/out root) Added an explicit "ca-file" attribute to the "bind" line in our haproxy.cfg file. The ".pem" file verifies OK using openssl. The various intermediate and root certificates are installed and showing in /etc/ssl/certs. But the checks still come back with an incomplete chain. Can anyone advise about anything else we can check or any other changes we can make to try to fix this? Many thanks in advance... UPDATE: The only relevant line from the haproxy.cfg (I believe), is this one: bind *:443 ssl crt /etc/ssl/domainaname.com.pem

  Read the article

• VSFTPD: Cannot figure this thing out...

  - by A Wizard Did It

  Alright, I've been giving this the best that I can, reading through various tutorials on google, but I cannot seem to get vsftpd running the way I want. For a short while I had it working with one account, but then that stopped and I haven't been able to get it to work since. I've since reformated and reinstall Ubuntu 10.04 LTS. I used apt-get install vsftpd and that's where I am now... I'd really appreciate if anyone could help me understand exactly how this is supposed to work... How do I add FTP accounts and set their home directory to something like /var/www/public_html?

  Read the article

• Long lag and errors clicking gmail links in google chrome

  - by Doug T.

  I recently downloaded Google Chrome with Ubuntu 9.04 and love it. Ironically one site I consistently have issues with is gmail. When I enter gmail I will click a link, say an email or the inbox link. After a very long wait (on the order of 30 seconds to a couple of minutes) my page will load with an error such as: Some Gmail features have failed to load due to an Internet connectivity problem. If this problem persists, try reloading the page, using the older version, or using basic HTML mode. Learn More. Googling the symptoms has not helped. Has anyone else had any similar issues? Has anything helped?

  Read the article

• Open file in local text editor from within an SSH connection

  - by Sam

  I'm not a vim guy. I'd like to be able to open log files in Sublime Text when in an SSH connection from within Terminal. Is there a way I could do this? I'm thinking there must be a command or something that could copy the file over to a temporary directory in OS X and then open it in Sublime Text, and when I save it, it'll copy back to the original location through SSH; similar to how FileZilla does it. I'm on Mac OS X MT. The server I SSH into is running Ubuntu. I'm using Terminal.

  Read the article

• df says disk is full, but it is not

  - by Chris

  On a virtualized server running Ubuntu 10.04, df reports the following: # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 7.4G 7.0G 0 100% / none 498M 160K 498M 1% /dev none 500M 0 500M 0% /dev/shm none 500M 92K 500M 1% /var/run none 500M 0 500M 0% /var/lock none 500M 0 500M 0% /lib/init/rw /dev/sda3 917G 305G 566G 36% /home This is puzzling me for two reasons: 1.) df says that /dev/sda1, mounted at /, has a 7.4 gigabyte capacity, of which only 7.0 gigabytes are in use, yet it reports / being 100 percent full; and 2.) I can create files on / so it clearly does have space left. Possibly relevant is that the directory /www is a symbolic link to /home/www, which is on a different partition (/dev/sda3, mounted at /home). Can anyone offer suggestions on what might be going on here? The server appears to be working without issue, but I want to make sure there's not a problem with the partition table, file systems or something else which might result in implosion (or explosion) later.

  Read the article

• Badwidth-Hogging Linux Server Causing Trouble

  - by BlairHippo

  We have a Linux server (2.6.28-11-generic #42-Ubuntu) that's misbehaving on a client site, gobbling up an entirely unacceptable percentage of the client's bandwidth, and we're trying to figure out what the heck it's doing. And the guy who had the sysadmin skillset has yet to be replaced. We're at a loss for what could be causing all that network traffic, and need to figure it out SOON. What log files should I be looking at to find this information? What analysis tools would you recommend for this task? Please note that I'm not looking for a tool that will allow me to analyze FUTURE traffic. The client is on the verge of shutting the machine off entirely; I need to figure out what it's been doing with the data I already have, if that's at all possible. My thanks in advance for helping a development monkey play sysadmin.

  Read the article

• Force ID of user created by apt-get

  - by Bart van Heukelom

  Context: I'm automatically installing postgresql-9.1 on an Ubuntu server with apt-get. This creates the required postgres user. The Postgres data is on an external volume that survives reinstalls. This data is obviously owned by the postgres user. The problem I'm having is that the ownership is not recorded under the name postgres, but under the UID that postgres had at creation time. When the server is reinstalled, postgres sometimes gets a different UID, and no longer owns the data directory, and thus does not work. Question: Can I force the UID of the user postgres created by apt-get to something fixed? Or is there another way to solve my problem? (As you may have deduced, this is on Amazon EC2 with the data on an EBS volume)

  Read the article

• Is it bad to have a very full hard drive on a high traffic database server?

  - by MikeN

  Running an Ubuntu server with MySQL for a high traffic production database server. Nothing else is running on the machine except the MySQL instance. We store daily database backups on the DB server, is there any performance hit or reason why we should keep the hard disk relatively empty? If the disk is filled up to 86%+ with the database and all of the backups, does it hurt performance at all? So would the DB server running with 86-90%+ full capacity perform less well in any way than the server running with only a 10% full disk? The total disk size on the server is over 1 TB so even 10% of the disk should be enough for basic O/S swapping and such.

  Read the article

• Samba users not added untill they logon first? Edit: How do I add users to tdbsam without a password prompt?

  - by glisignoli

  I add users to my server with the command useradd -m -p PASS_HASH -s /usr/sbin/nologin USERNAME Then I try to access their samba home share, but it never shows up until I login with the user: root:~$sudo login failtest Password:###### Added user failtest. Is there some way of added the user without logging in? Edit: The problem is that the user is added with the useradd command, but ubuntu seems to run an initalisation script when the user logs on for the first time. This script then adds that user to the tdbsam user database. Finding the initalisation script or the method it uses to add a user to the tdbsam database without requiring any user input (as smbpasswd -a USER prompts the user for a password). So all I need is a way to add a user+pass to the tdbsam database without prompting a user for a password (eg: samaba-add-user.sh USERNAME PASSWORD).

  Read the article

• slow disk writes between host and guest

  - by Jure1873

  I've got a ubuntu (server kernel) on a amd x4, 4gb ram, 2x seagate sata 1 tb disks for testing virtual machines and the write performance is very slow. The two disks are in a software raid1 array, one small boot ext3 partition, 10gb system partition and the rest is a xfs partition (about 980) gb for data (virtual machines). If I'm copying files from the virtual machine to the host with rsync or scp the copy frequently stalls or goes at about 1mb/s. What's wrong? I've tried disabling barriers on xfs, increased logbufs, allocsize, but it seems nothing helps. The strange thing is that await (for example during copying) for sda is usually under 100, while for sdb is around 400. Any ideas on what could be wrong / what could I do to improve this setup?

  Read the article

• Burning iso images with wodim loses 2048 bytes at the end

  - by Grumbel

  If I burn an iso image with: wodim -data dev=/dev/scd0 in.iso and then read it back out with: dd if=/dev/scd0 of=out.iso The resulting files are not identical, out.iso is 2048 bytes shorter then in.iso. What is going on here and how can I fix it? Using Ubuntu 10.04 and Wodim 1.1.10 PS: dd always ends with an Input/output error, not just with this CD, but with all of them. I think its just a limitation of dd, but an explanation why it happens and how to avoid it would be welcome as well.

  Read the article

• Install Linux with two hard drives

  - by rdecourt

  I've a machine with two hard drives. The first one has 80 GB and the second has 120 GB. I'm about to format this machine and install Linux, and I want to install all the main partitions (/, /boot, /usr/, etc.) on the first hard disk drive (sda) and mount the /home and /var partition on second disk (sdb). Is this possible, and do I have to do something after the instalation? Or is the second hard disk drive automatically mounted? How can I do it? I won't do it, but is there any problem to mount /boot on the second hard disk drive? I'm using Ubuntu 12.04.

  Read the article

• Gitosis installation of public key not working...

  - by user29600

  I've been following this tutorial to install and setup git on Ubuntu Server 10.04 using Windows 7 as a client. However, after finally figuring out how it works (executed gitosis-init a bunch of times on the wrong key), I copied the id_rsa.pub file over to the server in /tmp folder and ran it again. Unfortunately it still doesn't work and when I execute git clone [email protected]:gitosis-admin.git it asks for gitosis's password rather than the RSA Passphrase. I'm assuming is the same problem this guy is having here... however, after following his instructions: Purge git-core and gitosis and manually remove the /srv/gitosis folder and following the instructions again (with the proper id_rsa.pub file this time), I'm still having the same issue. Anyone know what I'm doing wrong? Is there any way to probe for more information that might help in solving this?

  Read the article

• Standalone server setup for compute capacity

  - by mikera

  I'm developing an application for my company that will require a lot of compute capacity (running some very big mathematical calculations), and looking for some form of server setup to do this. For various reasons, we want to run this on-site in our office rather than hosting it externally. It's been a while since I last had to set up my own servers so I thought I would tap into the collective wisdom of serverfault! My broad requirements are: Budget $30-50k, with an aim to get as much compute capacity as possible for that budget 64-bit servers suitable to run Ubuntu Linux + Java Some relatively standalone rack that can be installed in secure office space Fast/low latency network connections between the servers, but don't really care about connectivity to the outside world Storage capacity shared between the servers - they don't necessarily need their own storage providing they can be booted from a common image Downtime can be tolerated (since the calculations are run in batch mode) The software itself is fault-tolerant, so there is no need for extra resiliency in the server setup (cheap replaceable commodity parts will be fine in general) Given these requirements what kind of setup would you recommend and why?

  Read the article

• A can ping B, B can ping C but A cant ping C. How do i connect A to C (ethernet)?

  - by user16654

  I have a computer at home with ip 192.168.221.xxx I have another computer at work that I can ping and it has 2 ip addresses: 192.168.1.xxx and 192.168.0.xxx. Those last 2 addresses have the same gateway ie 192.168.1.1 . The computer at work is connected to a hub. That hub also has an embedded device connected to it with address 192.168.0.xxx Now from my home computer I cannot ping this embedded device. How would I connect to it without changing the subnetwork it connects to? I can ping the embedded device from my work computer and I can ping the work computer from my home computer. So I am trying to connect to the embedded device from my home computer through my work computer. Port forwarding? how would I establish that on Ubuntu?

  Read the article

< Previous Page | 352 353 354 355 356 357 358 359 360 361 362 363  | Next Page >