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  • Xen dom0 reports incorrect amount of RAM with dom0_mem set

    - by xen_amnesiac
    I've done a fair bit of searching about this, but have found nothing that answers my question. I have a system with 6GB of RAM which acts as a Xen server. For reference, it runs Ubuntu 12.04. I've set the kernel parameter dom0_mem:512M,max:512M in /etc/default/grub as follows: GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=min:512M,max:512M" I've tried variations of that, with the same result. My question is this: With the above set, the dom0 reports in all applications a RAM amount of 422M. cat /proc/meminfo gives the following: $ cat /proc/meminfo MemTotal: 432472 kB MemFree: 54144 kB Buffers: 17640 kB Cached: 220104 kB SwapCached: 30172 kB Active: 136500 kB Inactive: 167780 kB Active(anon): 6156 kB Inactive(anon): 60516 kB Active(file): 130344 kB Inactive(file): 107264 kB Unevictable: 52 kB Mlocked: 52 kB SwapTotal: 1794044 kB SwapFree: 1682012 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 39572 kB Mapped: 8048 kB Shmem: 136 kB Slab: 44324 kB SReclaimable: 22012 kB SUnreclaim: 22312 kB KernelStack: 1280 kB PageTables: 3840 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 2010280 kB Committed_AS: 329192 kB VmallocTotal: 34359738367 kB VmallocUsed: 313988 kB VmallocChunk: 34359417340 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 524696 kB DirectMap2M: 0 kB top, htop, free -m, and byobu's RAM monitor all report the same amount. At first I thought this was because of the onboard graphics borrowing some memory, but have now switched to a dedicated GPU and it persists. Is this normal behavior, or has something gone amiss? It's just about 100MB of RAM that's "gone", and I have no idea where it went. I understand that it's normal that not all RAM is available for allocation, but does the system really take an amount relatively high to the amount of RAM available?

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  • What's hogging my CPU?

    - by endolith
    Ubuntu's System Monitor applet shows 100% CPU usage continuously. If I click it, the resources tab shows it at 100% continuously, too. If I go to processes, though, to find out which process is the culprit, there is nothing above 10%. If I run top there is nothing above 10%. I try killing lots of things, but it continues at 100%. How can I find out what's hogging the CPU? This is an unusual situation on a computer I use daily, that normally only hits 100% CPU when I'm doing something that requires it (like loading 32 Firefox tabs) after which it goes back to a normal idle level. It's not a new install or anything. It shouldn't be maxed out. I'm not sure when it started or if I changed something that caused it to happen. Normally I would use top or System Monitor and find the process that had gone out of control, but I can't find anything with those tools this time. It persists after reboots and everything. And the processor is obviously hot, so it's not an erroneous reading. Update: I tried killing any process I saw active again, and killing vino-server finally fixed the problem, even though it never went above 5%. I had enabled Remote Desktop a few days ago (and have obviously now disabled it). How did it manage to use 100% CPU while top only showed it as 5% or so? How do I identify the culprit in the future? Looks like I'm not the only one: Still a problem in both jaunty & karmic. Interestingly, both System Monitor & htop do not show the sum of individual processes being anywhere near 100% cpu.

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  • Swap space maxing out - JVM dying

    - by travega
    I have a server running 3 WordPress instances, MySql, Apache and the play framework 2.0 on 64m initial & max heap. If I increase the max heap of the JVM that play is running in even by 16m I see the 128m of swap space steadily fill up until the the JVM dies. I notice that it is only when I am plugging away at the wordpress sites that the JVM will die. I assume this is because the JVM is not asking for memory at the time so gets collected. I notice that when I restart Apache I reclaim about half of my swap and RAM. So is there some way I can configure apache to consume less memory? Also what could be causing the swap space to get so heavily thrashed with just 16m added to the max heap size of the JVM? Server running: Ubuntu 12.04 RAM: 408m Swap: 128m Apache mods: alias.conf alias.load auth_basic.load authn_file.load authz_default.load authz_groupfile.load authz_host.load authz_user.load autoindex.conf autoindex.load cgi.load deflate.conf deflate.load dir.conf dir.load env.load mime.conf mime.load negotiation.conf negotiation.load php5.conf php5.load proxy_ajp.load proxy_balancer.conf proxy_balancer.load proxy.conf proxy_connect.load proxy_ftp.conf proxy_ftp.load proxy_http.load proxy.load reqtimeout.conf reqtimeout.load rewrite.load setenvif.conf setenvif.load status.conf status.load

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  • Whitelist IP from google-authenticator in sshd pam

    - by spudwaffle
    My Ubuntu 12.04 server uses the google-authenticator pam module to provide two step authentication for ssh. I need to make it so that a certain IP does not need to type the verification code. The /etc/pam.d/sshd file is below: # PAM configuration for the Secure Shell service # Read environment variables from /etc/environment and # /etc/security/pam_env.conf. auth required pam_env.so # [1] # In Debian 4.0 (etch), locale-related environment variables were moved to # /etc/default/locale, so read that as well. auth required pam_env.so envfile=/etc/default/locale # Standard Un*x authentication. @include common-auth # Disallow non-root logins when /etc/nologin exists. account required pam_nologin.so # Uncomment and edit /etc/security/access.conf if you need to set complex # access limits that are hard to express in sshd_config. # account required pam_access.so # Standard Un*x authorization. @include common-account # Standard Un*x session setup and teardown. @include common-session # Print the message of the day upon successful login. session optional pam_motd.so # [1] # Print the status of the user's mailbox upon successful login. session optional pam_mail.so standard noenv # [1] # Set up user limits from /etc/security/limits.conf. session required pam_limits.so # Set up SELinux capabilities (need modified pam) # session required pam_selinux.so multiple # Standard Un*x password updating. @include common-password auth required pam_google_authenticator.so I've already tried adding a auth sufficient pam_exec.so /etc/pam.d/ip.sh line above the google-authenticator line, but I can't understand how to check an IP adress in the bash script.

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  • Deploying a Git server in a AWS linux instance

    - by Leroux
    I'm making a git server on my linux instance in AWS. I tried doing it using these instructions but in the end I always get stuck with a "Permission denied (publickey)" message. So here is my detailed steps, the client is my windows machine running mysysgit and the server is the AWS ubuntu instance : 1) I created user Git with a simple password. 2) Created the ssh directory in ~/.ssh 3) On the client I created ssh keys using ssh-keygen -t rsa -b 1024, they got dropped in my /Users/[Name]/.ssh directory, id_rsa and id_rsa.pub key pair was created. 4) Using notepad I copy pasted the text into newly created files on the server in the ~/.ssh directory of my Git user. ~/.ssh/id_rsa and **~/.ssh/id_rsa.pub** were copied. 5) On the server I made the authorized_hosts file using "cat id_rsa.pub authorized_hosts" (while inside the .ssh directory) 6) Now to test it, on my client machine I did ssh -v git@[ip.address] 7) Result : debug1: Host 'ip.address' is known and matches the RSA host key. debug1: Found key in /c/Users/[Name]/.ssh/known_hosts:1 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Trying private key: /c/Users/[Name]/.ssh/identity debug1: Trying private key: /c/Users/[Name]/.ssh/id_rsa debug1: Offering public key: /c/Users/[Name]/.ssh/id_dsa debug1: Authentications that can continue: publickey debug1: No more authentication methods to try. Permission denied (publickey). I would appreciate any insight anyone can give me.

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  • How to setup equivalent USVIDEO.ORG DNS-Proxy on Linux

    - by Gary
    I have a VPS in the USA running Ubuntu. I want to setup something similar to http://www.usvideo.org Basically, USVIDEO is a DNS service that allows Canadians to access American content like Hulu, Netflix, NBC, and etc (restricted by geographical IP). Here is how I think USVideo does it: Clients (PS3, XBOX, PC) specifies the DNS server(s) as specified on USVIDEO.org's website. If the DNS request is a video/audio site such as Netflix or Pandora, forward the request to a proxy. Otherwise, for all other requests, forward it to a different DNS server. If the specific video/audio URL is requested, return the address of the proxy server, which in turn relays traffic to the destination video/audio domain via the U.S. gateway so that it appears that the access is coming from a U.S. IP address. Once the DNS request has passed the U.S. IP address check, their proxy server steps out of the loop and lets the video streaming site contact you directly to start the video stream. This trick relies on the way that the video streaming sites check the country of your IP address once up front, but don't actually check the country of the destination IP address while the video is streaming. What is elegant about this solution is that a VPN Tunnel is not required to bypass geographical IP checks from certain websites. All that is required on the client side is to specify the DNS server (the VPS). If a certain site is geographically locked, just forward the traffic to a proxy, and that's it. These sites can be specified in the DNS entries, or perhaps in the proxy service to redirect the DNS request to its own proxy. I believe what I need to setup something similar is Squid Proxy, IPTables, and DNS. What I need help is how to exactly approach this? Would Squid Proxy be setup as a transparent proxy?

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  • DNS configuration issues. Clients inside network unable to resolve DNS server's name

    - by hydroparadise
    Setup the DNS service on Ubuntu 12.04 64 and all apears to be well except that my dhcp clients do not recognize my DNS servers hostname. When doing a nslookup on one of my Windows clients, I get C:\Users\chad>nslookup Default Server: UnKnown Address: 192.168.1.2 Where I would expect the FQDN in the spot where UnKnown is seen. The DNS server know's itself pretty well, but I think only because I have an entry in the /etc/hosts file to resolve. There's so many places to look I don't even know where to begin. Are there any logs I can look at? Something. Places I've looked at and configured: /etc/bind/zones/domain.com.db /etc/bind/zones/rev.1.168.192.in-addr.arpa /etc/bind/named.conf.local EDIT: '/etc/bind/zones/rev.1.168.192.in-addr.arpa' @ IN SOA dns-serv1.mydomain.com [email protected]. ( 2006081401; 28800; 604800; 604800; 86400 ) IN NS dns-serv1.mydomain.com. 2 IN PTR dns-serv1 2 IN PTR mydomain.com EDIT 2: '/etc/bind/named.conf.local' zone "mydomain.com" { type master; file "/etc/bind/zones/mydomain.com.db"; }; zone "1.168.192.in-addr.arpa" { type master; file "/etc/bind/zones/rev.0.168.192.in-addr.arpa"; };

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  • configuring vsftpd anonymous upload. Creates files but freezes at 0 bytes

    - by Wayne
    vsftpd on ubuntu after sudo apt-get install vsftpd Then did configuration as in the attached /etc/vsftpd.conf file. Anonymous ftp allows cd to the upload directly and allows put myfile.txt which gets created on the server but then the client hangs and never proceeds. The file on the server remains at 0 bytes. Here's the folders and permissions: root@support:/home/ftp# ls -ld . drwxr-xr-x 3 root root 4096 Jun 22 00:00 . root@support:/home/ftp# ls -ld pub drwxr-xr-x 3 root root 4096 Jun 21 23:59 pub root@support:/home/ftp# ls -ld pub/upload drwxr-xr-x 2 ftp ftp 4096 Jun 22 00:06 pub/upload root@support:/home/ftp# Here's the vsftpd.conf file: root@support:/home/ftp# grep -v '#' /etc/vsftpd.conf listen=YES anonymous_enable=YES write_enable=YES anon_upload_enable=YES dirmessage_enable=YES xferlog_enable=YES anon_root=/home/ftp/pub/ connect_from_port_20=YES chown_uploads=YES chown_username=ftp nopriv_user=ftp secure_chroot_dir=/var/run/vsftpd pam_service_name=vsftpd rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key Here's a file example that attempted to upload: root@support:/home/ftp/pub/upload# ls -l total 0 -rw------- 1 ftp nogroup 0 Jun 22 00:06 build.out This is the client attempting to upload...it is frozen at this point: $ ftp 173.203.89.78 Connected to 173.203.89.78. 220 (vsFTPd 2.0.6) User (173.203.89.78:(none)): ftp 331 Please specify the password. Password: 230 Login successful. ftp> put build.out 200 PORT command successful. Consider using PASV. 553 Could not create file. ftp> cd upload 250 Directory successfully changed. ftp> put build.out 200 PORT command successful. Consider using PASV. 150 Ok to send data.

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  • Acer Aspire One getting extremely hot

    - by ascom
    I have an Acer Aspire One D250-1197. I really better type fast before it overheats again... For some reason, I'm having a problem with heat on my netbook only when I run Joli OS (Ubuntu 9.10 LTS?). When I leave it idle, with nothing running (other than the regular Joli OS desktop and a couple of doing-nothing terminals), heat slowly builds up to the point where the netbook is burning hot to the touch. I have never had this problem when running Windows 7 Starter (even though it gives me plenty of other headaches). It seems that the fan is spinning, but not fast enough to keep up with the heat buildup. Is there something wrong with the fan drivers? The computer doesn't seem to recognize that it is overheating. What can I do to solve this problem (other than shut it off or use Windows)? I'm currently on the wrong side of Earth (I mean, on vacation), so I just need a temporary fix, such as a driver I can install. Also, I have to use Linux, because I have to share out the wired connection in hotels wirelessly to the iPhones. EDIT: I'm switching from Joli OS to a more "proper" and up to date distribution (Xubuntu 13.04). I'll see if it still has the heat problem and try @nod's cpufreq idea.

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  • Creating mdraid device on top of other existing mdraid devices

    - by Dmitriusan
    I'm considering creating something like "hierarchical raid" and wondering whether it is possible using pure mdraid. Moreover, I'm going to boot from this device. I'm using Ubuntu Server 12.04 LTS with Grub2 bootloader. Motivation behind doing that is: I have 4 x 1tb 7200rpm disks. Two are newer and faster (up to 200mb/sec) and other two are slower (up to 140mb/sec). I want to create RAID-0 device from them. When creating such RAID-0 directly from 4 hard disks, I get summary speed up to ~480mb/sec. That is roughly 4*120mb/sec, so RAID-0 works with speed of the slowest device. I have an idea to create a separate RAID-0 md0 device from 500gb partitions of slower hard disks. Theoretically, this md0 device will have speed 2*140=240~280mb/sec. After that, I'm going to add this md0 device to RAID-0 with faster disks, finishing with up to 3*200=600mb/sec. Stripe-width for this raid will be 2x times bigger than for underlying raid with slow disks. Questions are: is it possible or I'm missing something? will that work as expected? can I boot from such consolidated raid device? any better ideas? any pitfalls? I don't want to use fakeraid for consolidating slow disks for multiple reasons (portability, ability to customize parameters and so on). PS Speed is needed for home virtualization server and just for experience/fun. Reliability is provided via regular automatic backups to a separate device. PPS I considered also using different stripe-width for hard disks with different speed in single raid, but mdraid does not seem to support that.

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  • Can't find disk usage in one directory

    - by Xster
    Similar questions are asked frequently but no suggested answers solved my issue. I have some disk space usage that I can't find as well. In df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 144183992 136857180 2652 100% / udev 2013316 4 2013312 1% /dev tmpfs 808848 876 807972 1% /run none 5120 0 5120 0% /run/lock none 2022116 76 2022040 1% /run/shm overflow 1024 0 1024 0% /tmp I checked the inodes, I checked lsof for +L1 or deleted files, I rebooted, I checked for files hidden behind mounts but none of them were the issue. It grows periodically and I'm running out of things to delete to feed the beast. It's all in the home directory of the only user I have. In du in ~ du -h --max-depth=1 192K ./.nv 2.1M ./.gconf 12K ./Pictures 1.6M ./.launchpadlib 12K ./Public 24K ./.TemporaryItems 8.9M ./.cache 12K ./Network Trash Folder 28K ./.vnc 11M ./.AppleDB 48K ./.subversion 1.9G ./.xbmc 8.0K ./.AppleDesktop 12K ./.dbus 81M ./.mozilla 12K ./Music 160K ./.gnome2 44K ./Downloads 692K ./.zsh 236K ./.AppleDouble 64K ./.pulse 4.0K ./.gvfs 1.4M ./.adobe 44K ./.pki 44K ./.compiz-1 168K ./.config 1.4M ./.thumbnails 12K ./Templates 912K ./.gstreamer-0.10 8.0K ./.emacs.d 92K ./Desktop 1.3M ./.local 12K ./Ubuntu One 12K ./Documents 296K ./.fontconfig 12K ./.qt 12K ./.gnome2_private 20K ./.ssh 20K ./.mission-control 12K ./Videos 12K ./Temporary Items 640K ./.macromedia 124G . I can't find a way to figure out how it got to that 124G in that directory. There are no mount points in home.

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  • Wireless disconnect randomly with wpa_supplicant reason=2

    - by renenglish
    I installed ubuntu-server 12.04 on my PC , and I use an usb wireless card to join the network. It works ok when I boot up my PC , but the wireless disconnects after a while. I pkill wpa_supplicant and reload the driver rtl8192cu , then it works a again. Then it disconnect again after about a random minutes. Here is the syslog: 22384 May 29 21:49:27 homecenter kernel: [ 6450.459313] wlan1: authenticated 22385 May 29 21:49:27 homecenter kernel: [ 6450.459535] wlan1: associate with f4:ec:38:45:62:74 (try 1) 22386 May 29 21:49:27 homecenter kernel: [ 6450.469080] wlan1: RX AssocResp from f4:ec:38:45:62:74 (capab=0 x431 status=0 aid=3) 22387 May 29 21:49:27 homecenter kernel: [ 6450.469085] wlan1: associated 22388 May 29 21:49:27 homecenter wpa_supplicant[2342]: Associated with f4:ec:38:45:62:74 22389 May 29 21:49:27 homecenter kernel: [ 6450.481933] ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 22390 May 29 21:49:27 homecenter wpa_supplicant[2342]: WPA: Key negotiation completed with f4:ec:38:45:62:7 4 [PTK=CCMP GTK=CCMP] 22391 May 29 21:49:27 homecenter wpa_supplicant[2342]: CTRL-EVENT-CONNECTED - Connection to f4:ec:38:45:62: 74 completed (auth) [id=0 id_str=] 22392 May 29 21:49:38 homecenter kernel: [ 6461.472014] wlan1: no IPv6 routers present 22393 May 29 21:49:38 homecenter ntpdate[2263]: step time server 91.189.94.4 offset 0.012758 sec 22394 May 29 21:49:51 homecenter ntpdate[2404]: step time server 91.189.94.4 offset -0.001190 sec 22395 May 29 21:54:38 homecenter kernel: [ 6762.052030] wlan1: deauthenticated from f4:ec:38:45:62:74 (Reas on: 2) 22396 May 29 21:54:38 homecenter wpa_supplicant[2342]: CTRL-EVENT-DISCONNECTED bssid=f4:ec:38:45:62:74 reas on=2 22397 May 29 21:54:38 homecenter kernel: [ 6762.064744] cfg80211: All devices are disconnected, going to re store regulatory settings 22398 May 29 21:54:38 homecenter kernel: [ 6762.064752] cfg80211: Restoring regulatory settings 22399 May 29 21:54:38 homecenter kernel: [ 6762.064757] cfg80211: Calling CRDA to update world regulatory d omain 22400 May 29 21:54:38 homecenter kernel: [ 6762.069938] cfg80211: Ignoring regulatory request Set by core s ince the driver uses its own custom regulatory domain 22401 May 29 21:54:38 homecenter kernel: [ 6762.069943] cfg80211: World regulatory domain updated: 22402 May 29 21:54:38 homecenter kernel: [ 6762.069945] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) 22403 May 29 21:54:38 homecenter kernel: [ 6762.069949] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KH z), (300 mBi, 2000 mBm) 22404 May 29 21:54:38 homecenter kernel: [ 6762.069952] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KH z), (300 mBi, 2000 mBm) 22405 May 29 21:54:38 homecenter kernel: [ 6762.069956] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KH z), (300 mBi, 2000 mBm) 22406 May 29 21:54:38 homecenter kernel: [ 6762.069959] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KH z), (300 mBi, 2000 mBm) 22407 May 29 21:54:38 homecenter kernel: [ 6762.069962] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KH z), (300 mBi, 2000 mBm)

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  • Process killing trouble

    - by Aditya Singh
    I am trying to program a server software which involves a lot of testing on java / scala platform. Whenever i compile and execute the code. It starts listening on port 80. Sometimes i need to terminate it by Ctrl+C when it hangs. In that case, ubuntu is not freeing the port. So in order to run the process, i have to restart the machine. I see this at ps aux root 1924 0.0 0.0 5796 1660 pts/0 T 05:44 0:00 sudo scala - root 1925 0.2 1.5 491448 40796 pts/0 Tl 05:44 0:03 java -Xmx256M -Xms16M So process 1924 and 1925. I did sudo kill on both these. But then they keep on persisting even after a long time. sudo nmap -T Aggressive -A -v 127.0.0.1 -p 1-65000 Scanning localhost (127.0.0.1) [65000 ports] Discovered open port 80/tcp on 127.0.0.1 It means its still there ! sudo netstat --tcp --udp --listening --program tcp6 0 0 [::]:www [::]:* LISTEN 1925/java tcp6 0 0 ip6-localhost:ipp [::]:* LISTEN 1185/cupsd This means its 1925 - java How to kill it.

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  • Error applying iptables rules using iptables-restore

    - by John Franic
    Hi I'm using Ubuntu 9.04 on a VPS. I'm getting an error if I apply a iptables rule. Here is what I have done. 1.Saved the existing rules iptables-save /etc/iptables.up.rules Created iptables.test.rules and add some rules to it nano /etc/iptables.test.rulesnano /etc/iptables.test.rules This is the rules I added *filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT -i ! lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You can modify this to only allow certain traffic -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections # # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE # -A INPUT -p tcp -m state --state NEW --dport 22- j ACCEPT # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT After editing when I try to apply the rules by iptables-restore < /etc/iptables.test.rules I get the following error iptables-restore: line 42 failed Line 42 is COMMIT and I comment that out I get iptables-restore: COMMIT expected at line 43 I'm not sure what is the problem, it is expecting COMMIT but if COMMIT is there it's giving error. Could it be due to the fact i'm usin a VPS?My provider using OpenVZ for virtualizaton.

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  • update all the servers through one virtual servers using Storage are network virtual machine

    - by Mr.Calm
    Using UBUNTU and Virtal Box by Oracle, and Using this script to start nginx in Virtual Box, and placing it in Virtual box inside~/init.d #!/bin/bash ### BEGIN INIT INFO # Provides: Testinit # Required-Start: # Required-Stop: # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start daemon at boot time # Description: Enable service provided by daemon. ### END INIT INFO # RETVAL=0; start() { CurrentTime=$(date +%d/%m/%Y"-"%I:%M:%S) ./usr/local/nginx/sbin/nginx echo "Current Time:"$CurrentTime>>/home/server/Desktop/NginxLogs.txt echo "!Starting nginx!" >>/home/server/Desktop/NginxLogs.txt Like this i want to write auto script (setup.sh file) and place that script in all virtual boxes inside my system, for example 8 virtual boxes and in all Virtual boxes NGINX is installed. Now, The thing is i am facing problem when i want change something in setup.sh i have to go to each and every virtual box, or Communicate each Virtual machine through SSH from my main machine. i am thinking to write another script (ex: Update.sh),and inside that script we give one path of file which is saved and recently edited in main machine (ex: DummySetup.sh). as soon as i run that script all the setup.sh files which are saved in each virtual machines should update the change or replace contents with DummySetup.sh's contents. Hope this is possible thing. Help would be appreciated.Thanking you

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  • SSH to VM rejecting password, works from virt-manager console

    - by boundless08
    First of all, I'm sorry if there is a duplicate post somewhere. I searched for a while but none of the posts I found fixed my problem. It's fairly annoying. I created a new VM on our network and when using virt-manager I can log into the VM fine with the username and password. When I try to ssh to the VM from anywhere else it rejects the password, but I know the password is correct. I've even changed it multiple times to make sure its correct. The address I'm ssh'ing to is definitely pointing at the right VM as well, I've tested all this. It's still usable, but the virt-manager console is very limited so the sooner I can get to the bottom of this the better. VM is running ubuntu 12.04 btw. EDIT 1 Checked the auth.log and all I'm getting is "sshd[29304]:Connection closed by 'server.ip.address' [preauth]". I also tried allowing logging in as root, and even turned off password auth altogether in sshd_config and still nothing! I then turned on "AllowEmptyPasswords", still a whole lot of nothing.

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  • Get details / solve issue with a kernel panic?

    - by Joseph
    I have a Lenovo T430 running Linux Mint 13 (MATE): joseph:~$ uname -a Linux joseph-T430-LM 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I installed Mint immediately after getting the laptop about two weeks ago, and have noticed that about once a day, the computer will completely freeze up- I can't use Ctrl+Alt+Backspace to restart X, I can't use Ctrl+Alt+F1 to get a text only terminal, can't move mouse, can't type, and if any music was playing it just gets stuck in about a 1-second loop. There is a Windows partition, but I haven't had any issues in Windows. I couldn't find a common thread between the freezes, they were seemingly random (sometimes right after I clicked the mouse, sometimes not; sometimes with Pandora/flash being used, sometimes not, etc). I assume they're kernel panics since it completely locks up, but the laptop doesn't have a capslock or scroll lock LED. It is on a dock and I do have a USB keyboard, but the scroll lock/capslock lights do not flash when it happens (not sure if this is indicating its not a kernel panic, or if the kernel panic just wouldn't illuminate the LEDs on a usb keyboard attached to a laptop dock). This was annoying but not terrible. However, I've found a way to reproduce it. I have a particular CSV file that when I open up in LibreOffice Calc and scroll around, the same thing happens- complete lock up. I really need to use this file, so I'd like to fix the issue, but at the least it's given me a test case to work with. So, having a case where I can cause this issue, what can I do to better find out what's going on? I've looked in /var/log/syslog but haven't found anything seemingly useful. Any thoughts?

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  • Startup script for Red5 on Ubuntu 9.04

    - by user49249
    I am creating startup script for Red5 on Ubuntu. Red5 is installed in /opt/red5 Following is a working script on a CentOS Box on which Red5 is running [code] ==========Start init script ========== #!/bin/sh PROG=red5 RED5_HOME=/opt/red5/dist DAEMON=$RED5_HOME/$PROG.sh PIDFILE=/var/run/$PROG.pid # Source function library . /etc/rc.d/init.d/functions [ -r /etc/sysconfig/red5 ] && . /etc/sysconfig/red5 RETVAL=0 case "$1" in start) echo -n $"Starting $PROG: " cd $RED5_HOME $DAEMON >/dev/null 2>/dev/null & RETVAL=$? if [ $RETVAL -eq 0 ]; then echo $! > $PIDFILE touch /var/lock/subsys/$PROG fi [ $RETVAL -eq 0 ] && success $"$PROG startup" || failure $"$PROG startup" echo ;; stop) echo -n $"Shutting down $PROG: " killproc -p $PIDFILE RETVAL=$? echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$PROG ;; restart) $0 stop $0 start ;; status) status $PROG -p $PIDFILE RETVAL=$? ;; *) echo $"Usage: $0 {start|stop|restart|status}" RETVAL=1 esac exit $RETVAL [/code] What do I need to replace for Ubuntu in the above script. My Red5 is in /opt/red5/ and to start it manually I always do /opt/red5/dist/red5.sh from Ubuntu As I did not find rc.d/functions on Ubuntu on my laptop also /etc/init.d/functions I did not existed. I would like to be able to use them with service as Red hat distributions do. I checked /lib/lsb/init-functions.

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  • HTML Redirect issue with Apache2

    - by Vijit Jain
    I am facing an issue with the ProxyPass on my Apache server on Ubuntu. I have configured Apache to deal with Virtual Hosts on my server. There is an application with runs on the server and uses ports 8001 8002. I need to do something like www.example.com/demo/origin to display the contents that I would see when I visit www.example.com:8000. The contents to be displayed are a host of HTML pages. This is the section of the virtual host config that has issues ProxyPass /demo/vader http://www.example.com:8001/ ProxyPassReverse /demo/vader http://www.example:8001/ ProxyPass /demo/skywalker http://www.example.com:8002/ ProxyPassReverse /demo/skywalker http://www.example.com:8002/ Now when I visit example.com/demo/skywalker, I see the first page of port 8002, say the login.html page. The second should have been www.example.com/demo/skywalker/userAction.html, instead the server shows www.example.com:8000/login.html. In the error logs I see something like: [Mon Nov 11 18:01:20 2013] [debug] mod_proxy_http.c(1850): proxy: HTTP: FILE NOT FOUND /htdocs/js/demo.72fbff3c9a97f15a4fff28e19b0de909.min.js I do not have any folder htdocs in the system. This is only an issue while viewing .html pages. Otherwise, no such issue occurs. When I visit localhost:8001 it will show any and all contents without any errors or issues. www.example.com/demo/skywalker displays a separate webpage www.example.com/demo/origin displays a different webpage and www.example.com/demo/vader displays a different webpage. I have also tried to use one more type of combination, <Location /demo/origin/> ProxyPass http://localhost:8000/ ProxyPassReverse http://localhost:8000/ ProxyHTMLURLMap http://localhost:8000/ / </Location> This fails as well. I would greatly appreciate if anyone can help me resolve this issue.

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  • Mysql Fail to start

    - by John Naegle
    I'm running a Ubuntu 12.04 LTS Virtual Machine. Last week, the VM stopped unexpectedly now mysql will not start on the VM. These two events may be related, they may not be. When I try to connect: $ mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) Then: $ sudo service mysql start start: Job failed to start And $ dmesg [ 1838.218400] type=1400 audit(1374633238.253:50): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=18473 comm="apparmor_parser" [ 1838.358656] init: mysql main process (18477) terminated with status 1 [ 1838.358695] init: mysql main process ended, respawning [ 1839.269303] init: mysql post-start process (18478) terminated with status 1 And $ service mysql status mysql stop/waiting I think this means mysql is crashing when it starts: $ sudo mysqld start 130723 21:51:24 InnoDB: Assertion failure in thread 3064211200 in file fut0lst.ic line 83 InnoDB: Failing assertion: addr.page == FIL_NULL || addr.boffset >= FIL_PAGE_DATA InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to http://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: about forcing recovery. 02:51:24 UTC - mysqld got signal 6 ; Per the manual, I went to the data directory (/var/lib/mysql) and ran this: myisamchk --silent --force */*.MYI Then: $ sudo mysqld ... InnoDB: Your database may be corrupt or you may have copied the InnoDB InnoDB: tablespace but not the InnoDB log files. See InnoDB: http://dev.mysql.com/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: for more information. ... Is my database corrupt? What can I do to recover? Re-install mysql? Something less drastic? I'm fine with losing the database, I just want a working system.

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  • Sendmail configs and logs look correct, but I get no mail

    - by Christian Dechery
    I used this tutorial to config sendmail on Ubuntu. Followed every step and when I test it, it seems to have worked, but I get no mail (not even on the spam folder) Below is the log for a test message: 050 >>> MAIL From:<[email protected]> SIZE=345 AUTH=<> 050 250 2.1.0 OK ek1sm23505399vdc.28 - gsmtp 050 >>> RCPT To:<######@gmail.com> 050 250 2.1.5 OK ek1sm23505399vdc.28 - gsmtp 050 >>> DATA 050 354 Go ahead ek1sm23505399vdc.28 - gsmtp 050 >>> . 050 250 2.0.0 OK 1401150762 ek1sm23505399vdc.28 - gsmtp 050 <########@gmail.com>... Sent (OK 1401150762 ek1sm23505399vdc.28 - gsmtp) 250 2.0.0 s4R0WdYN007263 Message accepted for delivery ######@gmail.com... Sent (s4R0WdYN007263 Message accepted for delivery) And this is my /var/log/mail.log May 26 21:32:39 UX-BLUEROOM sendmail[7262]: s4R0Wdxq007262: from=christian, size=105, class=0, nrcpts=1, msgid=<[email protected]>, relay=christian@localhost May 26 21:32:40 UX-BLUEROOM sm-mta[7263]: s4R0WdYN007263: from=<[email protected]>, size=345, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA-v4, relay=localhost [127.0.0.1] May 26 21:32:41 UX-BLUEROOM sm-mta[7263]: STARTTLS=client, relay=gmail-smtp-msa.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-RC4-SHA, bits=128/128 May 26 21:32:42 UX-BLUEROOM sm-mta[7263]: s4R0WdYN007263: to=<######@gmail.com>, ctladdr=<[email protected]> (1000/1000), delay=00:00:02, xdelay=00:00:02, mailer=relay, pri=30345, relay=gmail-smtp-msa.l.google.com. [173.194.75.109], dsn=2.0.0, stat=Sent (OK 1401150762 ek1sm23505399vdc.28 - gsmtp) May 26 21:32:42 UX-BLUEROOM sendmail[7262]: s4R0Wdxq007262: to=#####@gmail.com, ctladdr=christian (1000/1000), delay=00:00:03, xdelay=00:00:03, mailer=relay, pri=30105, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (s4R0WdYN007263 Message accepted for delivery)

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  • MySQL permission errors

    - by dotancohen
    It seems that on a Ubuntu 14.04 machine the user mysql cannot access anything. It is not writing logs nor reading files. Witness: - bruno():mysql$ cat /etc/passwd | grep mysql mysql:x:116:127:MySQL Server,,,:/nonexistent:/bin/false - bruno():mysql$ sudo mysql_install_db Installing MySQL system tables... 140818 18:16:50 [ERROR] Can't read from messagefile '/usr/share/mysql/english/errmsg.sys' 140818 18:16:50 [ERROR] Aborting 140818 18:16:50 [Note] Installation of system tables failed! Examine the logs in /var/lib/mysql for more information. ...boilerplate trimmed... - bruno():mysql$ ls -la /usr/share/mysql/english/errmsg.sys -rw-r--r-- 1 root root 59535 Jul 29 13:40 /usr/share/mysql/english/errmsg.sys - bruno():mysql$ wc -l /usr/share/mysql/english/errmsg.sys 16 /usr/share/mysql/english/errmsg.sys Here we have seen that mysql cannot read /usr/share/mysql/english/errmsg.sys even though the permissions are open to read it, and in fact the regular login user can read the file (with wc). Additionally, MySQL is not writing any logs: - bruno():mysql$ ls -la /var/log/mysql total 8 drwxr-s--- 2 mysql adm 4096 Aug 18 16:10 . drwxrwxr-x 18 root syslog 4096 Aug 18 16:10 .. What might cause this user to not be able to access anything? What can I do about it?

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  • Server appears to have lost ability to read PHP files with LAMP

    - by OtagoHarbour
    I have LAMP installed on a PC that is running Ubuntu 11.10. LAMP was running fine but I had to restart the PC because Unity was messing up (as it often does) and the tool bar had disappeared. When it started up, I was unable to fire up any php files. I have a file index.php in /var/www. It is owned by www-data as is the directory that it is in. The LAN address of the server is 192.168.1.10. However when I type 192.168.1.10 into the URL box on Mozilla FireFox, I get Unable to connect Firefox can't establish a connection to the server at 192.168.1.10 This server is connected to another server on the LAN that has the LAN address 192.168.1.4. When I type 192.168.1.4 into the Firefow URL box on 192.168.1.10, I see the display associated with index.php on 192.168.1.4. Why can it not display its own /var/www/index.php? Any assistance with this would be greatly appreciated, Peter.

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  • How to add another application to apache?

    - by Jader Dias
    I was following the Zabbix installation tutorial for Ubuntu and it requested that I added a file /etc/apache2/sites-enabled/000-default containing Alias /zabbix /home/zabbix/public_html/ <Directory /home/zabbix/public_html> AllowOverride FileInfo AuthConfig Limit Indexes Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec <Limit GET POST OPTIONS PROPFIND> Order allow,deny Allow from all </Limit> <LimitExcept GET POST OPTIONS PROPFIND> Order deny,allow Deny from all </LimitExcept> </Directory> But I already have /etc/apache2/sites-enabled/railsapp NameVirtualHost *:80 NameVirtualHost *:443 <VirtualHost *:80> UseCanonicalName Off Include /etc/apache2/conf/railsapp.conf </VirtualHost> <VirtualHost *:443> SSLEngine on SSLCertificateFile /etc/ssl/certs/cert.pem Include /etc/apache2/conf/railsapp.conf RequestHeader set X_FORWARDED_PROTO 'https' </VirtualHost> and /etc/apache2/sites-enabled/mercurial NameVirtualHost *:8080 <VirtualHost *:8080> UseCanonicalName Off ServerAdmin webmaster@localhost AddHandler cgi-script .cgi ScriptAliasMatch ^(.*) /usr/lib/cgi-bin/hgwebdir.cgi/$1 </VirtualHost> I think that it is because of the already existing virtual hosts that my I can't access the zabbix page. How to circumvent this?

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  • Proxy to either Rails app or Node.js app depending on HTTP path w/ Nginx

    - by Cirrostratus
    On Ubuntu 11, I have Nginx correctly serving either CouchDB or Node.js depending on the path, but am unable to get Nginx to access a Rails app via it's port. server { rewrite ^/api(.*)$ $1 last; listen 80; server_name example.com; location / { proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_pass http://127.0.0.1:3005/; } location /ruby { proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_pass http://127.0.0.1:9051/; } location /_utils { proxy_pass http://127.0.0.1:5984; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_buffering off; # buffering would break CouchDB's _changes feed } gzip on; gzip_comp_level 9; gzip_min_length 1400; gzip_types text/plain text/css image/png image/gif image/jpeg application/x-javascript text/xml application/xml application/x ml+rss text/javascript; gzip_vary on; gzip_http_version 1.1; gzip_disable "MSIE [1-6]\.(?!.*SV1)"; } / and /_utils are working bu /ruby gives me a 403 Forbidden

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