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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3answers
430 views

Exclude with the find command [duplicate]

I need some help getting the find command to work right in a script working on. I need to be able to exclude some directories. Below I have what I'm doing as a work around. sudo find / ( -name ...
1
vote
2answers
71 views

How do I show listening open ports from the shell?

I always have to google this and ServerFault is never the first result. Typically I want to do this on a unix box, but I'd also like to know how to do it on a Windows machine from CMD.exe.
0
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2answers
741 views

CPU usage command for monitor script

Is there a command for FreeBSD (except the top -P) I could use to monitor my dedicated server CPU usage? I am in progress of writting my bash script which will notify me as soon as any of the CPU core ...
1
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1answer
46 views

Viewing the packet-size of an incoming IP

I have been looking for a sulution to this for a few hours. after no avail im asking for help here. I need to watch my incoming packets by Size. in a format similar to: IP SIZE I have tried ...
1
vote
1answer
255 views

Can sftp check for existing data?

I have 700 binary files (pdf) to download and right now only 400 are available on a sftp server. Can sftp, from the cli, determine what files exist in the local directory so it doesn't need to ...
3
votes
1answer
3k views

Can't log in to FTP on Debian with vsftpd

Linux noob here so please bear with me :) I'm trying to setup FTP access to my Apache server but I'm receiving a 530 Login Incorrect error. I installed the vsftp package via sudo apt-get install ...
0
votes
2answers
122 views

How to block rejected messages I did not send?

In exim mainlog I see a lot of rejected messages I did not actually sent (they were send from spammers). 2014-02-20 23:42:47 H=a94-132-158-40.cpe.xxxxxxx.pt (zonhub) [94.132.xxx.xxx] ...
2
votes
1answer
376 views

dmesg time vs system time time isn't correct

I hope that here is somebody that can help me with this strange problem. I think that i know why it is happening but i don't know how to solve it. Maybe it is because the BIOS time isn't set correct ...
1
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2answers
959 views

How do you tell if a user is “allowed to log in” on Linux?

The question is simple, I want to list all the user accounts which can log in to my system, but I'm not sure if that all the users in /etc/passwd are "could login" users? Details: I can see users ...
0
votes
2answers
365 views

Portforwarding with IPTABLES and Remote IP detection

I was able to forward 80 port from my primary server 192.168.90.1 to the second one 192.168.90.2 with IPTABLES The primary server has a public address X.X.X.X so I forwarded X.X.X.X:80 -> ...
1
vote
1answer
52 views

How to delete special character in linux

By mistake I made a file with the name \. How do you delete something like that? I've tried rm --\ rm "\" rm -- -\and nothing seems to work. I bet it's so simple but I'm stumbled - any suggestions?
0
votes
1answer
163 views

Fix Solaris 11 GNU tools location for RVM

I am trying to install RVM on a Solaris 11 system, the curl -sSL https://get.rvm.io | bash -s stable went through, but when I actually try to use rvm, it simply stats "ERROR: Missing GNU tools: grep ...
1
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2answers
325 views

SSH Tunnel or Reverse Tunnel

I'm trying to establish a SSH tunnel to allow VNC/ARD connections (ports 5900 and 3389). However I'm uncertain about a certain thing: Let's say machine A has IP 192.168.103.1 and has services running ...
1
vote
1answer
41 views

Windows process management tools

Unix has tools like upstart, angel, god, etc to keep processes running constantly on system start and can restart processes that have failed. Does windows have the ability to do this natively?
13
votes
3answers
880 views

Is there a mechanism in Unix (or Linux) to stop an in-progress core dump?

Let's say a (very) large process is crashing and dumping core, and we know the cause from other information (possibly an assert message, maybe something else). Is there a way to stop the core dump ...
-1
votes
1answer
1k views

KVM-Host OS recommendation [closed]

I am about to migrate a server installation (one OS) to a newer hardware and wish to enable/use KVM. So the hardware is fixed (https://www.hetzner.de/hosting/produkte_rootserver/ex40) , now I got the ...
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votes
2answers
98 views

How to block access to a local user to a local port?

How to block access to a local user to a local port? Example: user Elvis should not have access to the port 25600 on the same server.
0
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2answers
84 views

Control IP to access a server , which use iptables

I would like to use linux command iptables to control to only allow the same subnet IP to access a server , what I would like to do is to allow any services from 10.168.1.0 to this server , could ...
23
votes
5answers
3k views

Can a program tell it is being run under sudo?

I have a program that should behave differently if it is being run under "sudo". Is there a way it can find out if it was run under sudo? Update: Someone asked why would I want to do this. In this ...
2
votes
2answers
65 views

redundancy in a single SCSI target

following-on from my earlier question about resurrecting an ancient Intergraph 6800 machine (licence file for extra logins on ancient Unix (CLIX) system), the original problem was a failed hard disk ...
2
votes
0answers
98 views

licence file for extra logins on ancient Unix (CLIX) system

I'm helping to sort out an ancient Intergraph 6800 machine at work, running CLIX, a proprietary Unix. Binning the system is not an option. It is a certified safety-critical system that would cost ...
1
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0answers
73 views

Mac OS 10.6.8 Firewall Blocking Wiki for ONE User

This is a very bizarre issue that I hope someone can help with. We're running 10.6.8 server to host our internal wiki. We had the firewall enabled on that machine without any issues. Last week one ...
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0answers
46 views

Is there a way for a user to temporarily remove its own group membership within a script?

I'm writing a script which will be used to "detect" whether a generic, no-frills, user account has access to certain files. Basically a user which only has membership in the "staff" group or ...
1
vote
0answers
242 views

rsyslog logging same data to multiple files

I'm new to configuring rsyslog for centralized logging and was wondering if one of you experts could help me with the following problem. I am trying to store logs for each remote host to a per host ...
0
votes
2answers
739 views

How to kill the process using the name of the program instead of PID?

I started my Python program in the background using nohup as mentioned below - nohup zook.py & Now I am trying to kill this process so I did the ps command as mentioned below ...
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2answers
168 views

How do I iterate bash arrays and make an SCP command efficiently?

I need to scp the files from machineB and machineC to machineA. I am running my below shell script from machineA. I have setup the ssh keys properly. If the files are not there in machineB, then it ...
9
votes
4answers
422 views

Linux cd .. command

Say if I need to do this a lot: cd ../../../../foo/sub1/bar/dest/ cd ../../../../foo2/sub1/bar/dest/ cd ../../../../foo3/sub1/bar/dest/ cd ../../../../foo/sub1/bar/dest/ Is there any faster way to ...
0
votes
2answers
832 views

Logging ssh info using syslog-ng daemon in Cygwin

I have setup the syslog-ng daemon using Cygwin in Windows 7. What I want to do is to log all of the ssh failed passwords, etc to /var/log/sshd.log. I tried to do this by adding the following line: ...
3
votes
1answer
136 views

ISC DHCPD memory leak solutions and or workarounds

Background: I have recently been put in charge of finding the root of and/or fixing a memory leak with an ISC DHCPD (4.2.5-P1) installation on a Debian (Lenny) Unix server. I have been researching ...
-1
votes
1answer
207 views

Https not working JBoss AS 7.0.2

I am trying to load SSL certificate to one of our site. We are using JBoss AS 7.0.2 for our application on Ubuntu Server 12.04, it's running successfully on http while on https it's not responding. ...
-1
votes
2answers
123 views

How to transfer file(s) from a Unix system to a DOS system? [closed]

What is the simplest way to transfer files from a Unix system to a DOS system? Preferably without any "extra" tools on the DOS side.
0
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0answers
39 views

Balancing server bandwith

I am working on a file uploading website. It will be run on dedicated server with 1GBPS connection. I wanna offer visitors max download speed possible at the current moment. So lets say server can ...
1
vote
1answer
65 views

cp/rsync command with destination as symlink to a directory

I am working on a cPanel backup solution at the moment. We are now informed about this exploit. Exploit : Full ROOT ACCESS to server 1.) create malicious file from, normal user account: mkdir root ...
0
votes
1answer
55 views

Multiple VirtualHost Configuration files in Apache2.

I have servers with RHEL-5, Apache-2.2.22, PHP-5.3.25 I know I can configure multiple virtualhost configurations in mutliple file by including these files in httpd.conf. Can Apache support this ...
0
votes
1answer
60 views

Optmize server access for LAN and WAN (Internet Access)

I am trying to optimize my server so that accessing the local network as well as the internet. The OS is Solaris 9 running on a SUN V210 Connecting outside takes a long time, with sometimes there is ...
2
votes
2answers
439 views

RHEL 5 list missing critical patches/packages

Im trying to figure out if there is an easy way to identify the missing critical patches/packages on my RHEL5 boxes. This is for audit purposes and was trying to figure out if there was an RPM command ...
5
votes
2answers
230 views

Trying to delete a directory stored on a Windows server, from on a Mac, containing files created on the Mac, getting “Directory not empty”

I am trying to delete a directory stored on a Windows 2008 R2 server, mounted on a Mac as network home (10.8.5). The directory was created by Safari and stores temporary internet files. I need to be ...
2
votes
1answer
786 views

What are main differences between Linux and FreeBSD system from sysadmin point of view? [closed]

What are main differences between Linux and FreeBSD system from sysadmin point of view ? What specifically and significantly differs Linux from BSD (memory/resources/users management, other ...
0
votes
1answer
145 views

Unix 'find' command to include/exclude subdirectories

Say the folder structure looks like this: . |--folder1 |--subfolder1 |--subfolder2 |--subfolder2 |--folder2 |--subfolder1 |--subfolder2 |--subfolder2 |--folder3 ...
1
vote
1answer
660 views

kernel warning disk error for command write - solaris svm

Recently this warning came up on my message logs, scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2/sd@0,0 (sd0): Oct 27 00:14:44 Error for Command: write(10) Error Level:Retryable ...
-1
votes
1answer
59 views

Differences between UNIX and Linux Drivers [closed]

I've been trying to find an answer to this, been on a wild goose chase. Since UNIX and Linux have different system architectures. My question is on the differences between the drivers for the SPARC ...
1
vote
2answers
84 views

Long string insertion with sed

I am trying to use this expression to insert the contents of one text file into another after a give string. This is a simple bash script: TEXT=`cat file1.txt` sed -i "/teststring/a \ ...
0
votes
1answer
132 views

IP routing Solaris 9 access the internet from local network

I am trying to configure the NICS on the Solaris Sparc server. My problem lies in getting out to the "Internet" from the local network. I have requested the NIC to receive a DHCP server address ...
1
vote
1answer
151 views

Timestamp Updating Constantly on /dev/null

I've been working on a problem with a /dev/null file on an AIX system (just for background it looks as though it was inadvertently deleted and recreated as a normal file by somebody), but in trying ...
-1
votes
2answers
1k views

how I can get the value of JAVA_HOME from my client

I have nagios client and server, how I can get the value of JAVA_HOME from my client? I have use to set shell command in script that is running from remote host: echo $JAVA_HOME and printenv | grep ...
0
votes
1answer
282 views

pbs check how much cpu a job is using / job % cpu usage

On a cluster a job is submitted to run on N CPUs. qstat -f doesn't show how much CPU resources the job is using other than the time. How does one check whether 100% of each CPU power is used? It is ...
2
votes
1answer
655 views

vsftpd default permissions for website directory and ftp

I'm trying to setup vsftpd and my users correctly. I can connect to the ftp with my user but I can't create any directory or file. My websites folder will be there: /srv/www/domain vsftpd.conf ...
1
vote
1answer
399 views

Sftp download directory while excluding files with certain extension

So I know I can download a whole directory like this: sftp> get -R * How can I exclude all files with .ipa extension though? I want to download everything except .ipa or .ipa.* files from a ...
4
votes
2answers
490 views

DFS and Access Based Enumeration - Unix devices cannot access it

I'm currently experiencing issues with DFS shares and ABE, enabled on a Windows Server 2008 R2 File Server. Everything works fine with Windows, the problem is with Linux/Unix machines. They aren't ...
1
vote
1answer
149 views

How to prevent users from renaming files while providing write permissions on Linux [closed]

For some special purpose, I want to prevent non-root users of the Linux Server from changing/renaming the filenames. However, they can modify and write to the contents of the file. How to do this from ...