Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs.

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Kernel fails to assign memory in any Linux Distro

I have a motherboard: X11SBA-LN4F/F. After install CentOS, i have error in log: May 2 21:47:48 ll-226 kernel: pci 0000:04:04.0: BAR 14: failed to assign [mem size 0x00200000] May 2 21:47:48 ll-226 ...
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5 views

Setting samba along with quota

We are trying to project quota for folder share managed by samba. We are using following permission for folder we want to share, User:nobody Group:perProjectGroup Mode drwxrwsr-x Please note ...
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6 views

sed use to replace string 2 lines after matching pattern in AIX 6.1 [migrated]

I try to replace a character, 2 lines after matching pattern. For this, I'm using this code: sed '/some_pattern/{N;N;s/word1/word2/}' /etc/filesystems > /etc/filesystems.tmp && mv -f ...
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33 views

How can I decide which unix or unix-like OS will give me the most open files permissible? [closed]

I am looking to deploy a service that is capable of serving more than 65535 simultaneous connections on one host. 65535 seems to be the practical limit of most common linux distributions. Are there ...
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1answer
21 views

BSD Connection 'Drops'

I've been setting up a BSD server and every thing went fine. It still works fine except on my own IP address I cannot connect to my webserver at all and with SSH I can login but then as soon as I type ...
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17 views

Remote process monitoring + stdin/stdout forwarding [on hold]

I'm looking for client/server remote monitoring service which provides follow functionality: check process status restart/stop/start stdin/stdout forwarding (we want to send some commands via http ...
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21 views

Wine + PsExec fail with Path not found

I'm trying to use PsExec with Unix distro. I use Wine with the command: wine PsExec.exe \\192.168.70.151 -u admin -p Pa55w@rd= dir Tried too: wine PsExec.exe \\\\\\\\192.168.70.151 -u admin -p ...
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8 views

Apache James: eval: /opt/james/bin/./wrapper-linux-x86-32: not found

I'm setting up a James server for the first time. I'm using 3.0-beta4. After I copied the binaries to /opt, I tried running it: neonorb@neonorb /opt/james/bin % ./james start Starting Apache James ...
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13 views

FreeNAS ACLs - ID mismatch, no AD

I am currently experiencing a strange behavior with my FreeNAS Setup, I assume it has been since my initial config. Even though I have a Windows 2008 Server, I do not use it for authentication with my ...
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1answer
49 views

SSD Server with trim enabled

I have a Windows Server (but I think this problem may apply to any UNIX server too) running using SSD. I have Kingston UV300 SSD and they allow TRIM. I also checked and my Windows is running with TRIM ...
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10 views

How to run menu options automatically in unix script [migrated]

I am new to UNIX and tried to create automation script as per my requirement but stuck up in the middle.please help on this. Requirement: directory /usr/ab/bc contains two menus as test ...
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1answer
67 views

Centos 6; phpMyAdmin 'Cannot log in to the MySQL server' after moving mysql.sock

I recently moved my mysql datadir from /var/lib/mysql to a new directory /home/mysql mounted on a new hard drive. For neatness sake I thought it'd be nice to place the tmpdir and socket on this new ...
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38 views

Ssh into a remote machine and execute a script using “expect”

I have a script named serverbounce.sh on server A. However, my Hudson home is on a server B. I want to execute my script serverbounce.sh on server A itself.For this performed the following: a. Created ...
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2answers
91 views

how to put files in ram

I have a server with 30 Gb ram and i have a script that put a (.ts) file (10mb) in /var/www/html/tv and script replace (.ts) file every 2 mintues. so my question is: can i mount this folder ...
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1answer
46 views

Installing a software in multiple linux machines using shell scripting in one machine

I will login to one Linux instance using ssh - putty and my goal is to install a software (for ex: I need to download oracle and install it) on 5 Linux machines with one shell script when I run that ...
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1answer
19 views

A reminder/memo file at login in Unix Solaris

I want that a user gets a specific message on the screen when login in, which file should I update ? Thanks
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1answer
51 views

Unix move folders with pattern

How can I move subfolders with a pattern to the new location? Example list of sources: /data/aaa/_old/ /data/bbb/_old/ The destinations should be: /archive/aaa/_old/ /archive/bbb/_old/ Is ...
1
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1answer
43 views

ssh and git pull from remote server

I'm trying to ssh from server 1 to server 2 and do a git pull from server 1 to server 2. So on server 1, I run the following command: ssh root@server2 'cd /root/.example; git pull origin master' ...
2
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1answer
151 views

Why is this process refusing to quit?

I have a cron job that runs a shell script that executes a php script. It runs every day, sends some email, and writes to stdout (which is redirected to a log file in the shell script). It looks as ...
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1answer
54 views

How can we get IO utilization for Process by Process ID using /proc directory? [closed]

I need to IO utilization for Process by Process ID without using any tool like iostat,iotop etc. Can any please help me to get IO utilization using info files using /proc/PID? Thanks in ADV.
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27 views

Preserving destination's permissions using Cygwin's rsync

I am using Cygwin with rsync to sync files from my windows 7 computer, to a CIFS share on a Freenas Server. The command I am using is: D:\Utility\Cygwin\bin\rsync.exe -rt --delete --verbose ...
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2answers
382 views

Non standard ssh port: should I edit /etc/services?

On a *nix system, when configuring ssh to listen on non standard port, should I also edit /etc/services to reflect that. I would think it should be done, so tools that use it (such as ufw) will ...
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32 views

Delete files older than x days permissions

I have a folder that I have to run the following script find folder/ -ctime +7 -exec rm {} \; To delete files in the folder older then x days. But I can't let the root user do that, there will be a ...
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17 views

What is [idle] under command means?

Using ps aux | less I got the next results: USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND root 11 1541.1 0.0 0 384 - RL 8Jan16 1446474:56.82 ...
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23 views

Cannot restore RAID 5 configuration

We have recently come across a problem and we would like your input on what is the best way to solve this. We have a QNAP TVS-871 and it was configured as a RAID 5 Storage Device. Today the system ...
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1answer
68 views

Why does “cat /proc/net/dev” show only 0 for non-root users?

Recently, I've noticed that my script to monitor the network showed me nothing at all when it was run with a non root user. My script is simply looking at /proc/net/dev which has the following ...
2
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1answer
26 views

mv: when is the resulting file available?

Suppose one process does this: mv a large file to a destination directory And another process is watching for that file in the destination directory because it wants to read its contents as soon as ...
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1answer
30 views

How can I know why my dedicated server froze or crashed ? (Unix-like)

Recently, my dedicated server froze for around 50 minutes on Sunday. It did not respond to ping or any command. In the end, it was hard rebooted by the hosting company and everything works fine since ...
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1answer
30 views

Understanding top and tuning

I have allowed Postgres 30GB of RAM on our server. When running intensive tasks, I think it is swapping. As I understand it: VIRT - virtual memory (ie: swapped to disk) RES - complete memory usage ...
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2answers
104 views

Unable to clear up tmp

I had a bunch of files in /tmp that I cleared up by doing $ rm -rf ./tmp/*. However, I'm still unable to 'clear' that information, even after a reset. Here is what I have now: $ cd Av-bash: cannot ...
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1answer
25 views

How to cut a string after a number of characters in unix? [closed]

How to delete all characters in one line after point with with sed? I have a file with multiple lines like this: 123456789 3483 98765432 56345 985745634 3469 67495735 87654 Now I want to delete ...
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80 views

Monit “check program” and restart based on exit code

When I use check process, monit will start the program I define under start program then monit will restart it if it stops. But when I use check program monit will not automatically start it. If the ...
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2answers
77 views

Unix / Linux command to see finished or killed processes

Is there a way to see processed that finished running or were killed a given amount of time ago? For instance, ps -ef will show all running processes, but if a process finishes, it is no longer ...
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11 views

Data was truncated on an input, output or update operation

Question: What can cause that in rare times (in a few %), 0 Byte sized files are created over FTP with the following errormessage: Data was truncated on an input, output or update operation ...
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12 views

consistent uid in multiple Distributed File System nodes

I am using GlusterFS to build a Distributed File System, which later I use to store the instances files for my OpenStack cloud. Each node need to have r/w access to the files on Gluster. The user by ...
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1answer
147 views

Passing Apache variable into SetHandler directive

I'm trying to have dynamically determined Unix socket used for different separated PHP "apps" (different sockets lead to different PHP-FPM pools) on my Apache (2.4.18) server (using mod_proxy_fcgi): ...
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1answer
37 views

How to get the time and date at which a user account is locked/unlocked in unix?

I need to get the exact time and date at which a user account was locked or unlocked in Linux. passwd -S command can give the status of an account i.e., if its locked or unlocked.
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1answer
64 views

Simpliest unix non-blocking “broadcast” socket

I have non-regularly running program which outputs string, I need to send this output to some kind of socket which can be distributed out of docker container and which can be listened by multiple ...
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47 views

Bash - Deployment script for files to a webserver

I am using an old machine as a webserver to host a static, code-generated site (the site serves HTML documentation, JS, PDFs and images). The old machine, along with development PC are on a home ...
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1answer
153 views

Wrong hardware time on linux

I don't have the correct hardware time on my debian server: root@server[09:48]:date Tue Dec 22 09:48:52 EST 2015 root@server[09:48]:date -u Tue Dec 22 14:48:54 UTC 2015 root@server[09:48]:cat ...
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99 views

HDP installation using ambari failing on CentOS 6.7

I am getting following error while installing HDP using ambari. Couldn't make out where the error lies,as error itself is not very clear. ========================== Creating target directory... ...
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11 views

HP-Unix: C-shell:Disk space checking

I have 10 devices that using hp-ux and i want to check the disk space in each devices. my requirement is if the space more than 90%, the info of device ans space will be save to a log. this is list of ...
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1answer
26 views

Checksum error while installing ambari

While installing ambari server,getting following error. yum install ambari-server -y Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile Updates-ambari-1.7.0 | 2.9 ...
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26 views

Super confused about possible NAT kerfuffle

I have a PFSense running on a ZBox at the moment - there are 4 Interfaces: LAN 1(192.168.2.0/24) WAN 1(192.168.2.0/24) (I know, same address, but this IF only connects to a modem, everything ...
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1answer
29 views

UNIX Shell Script IP Lookup

UNIX/LINUX: I'm not there yet with writing shell scripts. Trying to write a short shell script that asks user to input IP address and performs host lookup of IP address and returns a name if ...
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2answers
50 views

LINUX/UNIX basic command questions

I'm trying to write a single command line that uses netstat and grep to count all connections in a state of “ESTABLISHED” and outputs a single number representing how many connections are currently ...
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4answers
52 views

How can I tell which static IP address one computer uses to connect to another computer?

I have a workstation connected to several internal networks, with a different static IP address on each of them. Through one (?) of these networks, I can connect to a server over ssh. How can I tell ...
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203 views

uWSGI TCP/IP host:port vs Unix socket

We are running a Python WSGI server (uWSGI) and changed to socket file instead of a tcp/ip localhost:port connection. Now our uwsgi logs are full of errors like IOError: write error SIGPIPE: writing ...
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20 views

inconsistency between pfiles and fuser

$ uname -sri SunOS 5.10 i86pc $ fuser securityagent-default-server321-1449307160087-2015-12-05.log securityagent-default-server321-1449307160087-2015-12-05.log: 29478o $ pfiles 29478|grep ...
7
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2answers
273 views

Is there a way of exporting fstab info for device which is currently mounted?

Does there exist any tool which can tell you what the fstab line for a mount should be? Ie. it looks at something which has been mounted manually and tells you the line which you would have to add to ...