Questions tagged [unix]
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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Kubernetes- execution phase preflight: couldn't validate the identity of the API Server
I am trying to create a bare metal Kubernetes cluster of one master node and three worker nodes. The nodes are Ubuntu VMs running in a VMWare Workstation lab environment. The master node is ...
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windows10 server NFS winNFSd.exe with NFS client unix access with username e password
-n°1 macchina CNC unix
-n°1 pc windows10 with winNFSd.exe
I managed to access the Windows 10 PC with Ubuntu like this:
sudo mount -t nfs -o vers=3 192.168.1.16:/pr /media/win
sudo mount -t nfs -o ...
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FreeBSD user has no permission on .ssh directory
I have a problem on FreeBSD 14.0 - the ~/.ssh/ directory is owned by me, but I can not access it as myself:
$ ls -al .ssh
ls: .: Permission denied
ls: ..: Permission denied
ls: authorized_keys: ...
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argument to pgrep from cmdline returns 2 PID's and argument from global variable value returns 1 PID
1.first case(processName as argument from cmd i.e java)
command from cmd with arguments : ./a.sh getProcessId contains java
code:
getProcessId(){
matchType=$1
#defaulting matchArg to x i.e exact ...
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1
answer
173
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pgrep -f from shell script is returning 2 pid instead of 1
code :
function main {
[ -z "$@" ] && { getProcessId "$@" } || "$@"
}
getProcessId(){
matchType=$1
#defaulting matchArg to x i.e exact match
matchArg=x
...
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2
answers
130
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change shell to /usr/bin/false in IBM aix os
I would define the program run for the user at session initiation into /usr/bin/false in /etc/passwd. The default value parameter is /usr/bin/ksh.
When I try to modify it with commands:
bash-5.1# ...
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kubectl get nodes --kubeconfig admin.kubeconfig returns "No resources found"
I am a newbie in Kubernetes. I am not even very familiar with basic kubernetes commands, but the installation is a starting point for my learning journey. I wanted to avoid installing something like ...
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74
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not able to send mail with attachment from linux ubuntu : 20.04 by using email mailutils (sendmail keyword)
code :
subject="Service resilience service status"
body="Service is down"
from="[email protected]"
to="[email protected]"
attachment="/home/ubuntu/...
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1
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Is it bad that I don't update the server? [closed]
I am running an application on my server with the help of Nodejs, and it has many dependencies such as Chrome.
I have not updated my server for two years. I am afraid that if I do, my code will fail ...
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Need help in logrotation
I have custom logrotation as below..
cat /etc/logrotate.d/apache
#
#
/var/log/apache/apache.log
{
daily
rotate 30
size 1G
compress
missingok
...
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1
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177
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nginx fowarding 20% (spaces) instead of + in url
I have an NGINX config that takes url's converts them with regular expression, this works fine. The issue is that while forwarding to the new atlassian instance the + from the URL is turned into %20 ...
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279
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is /etc/sudoers writable or not
The default permission in /etc/sudoers file is readonly for root and group root as in picture is obvious :
So when you open it with any test editor it can't be written and give error read only.
now ...
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Mount a remote GPU locally on Rocky Linux
I am doing some work on a server which has 1TB RAM, 100CPUs, and 1000TB storage. My work involves very large datasets.
One specific I am trying to run would benefit immensely from a GPU, it is ML ...
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How to have an environment variable with quotes in crontab?
I have a minimum example of my problem, which is trying to install a crontab that looks like this:
FOO="foo\"bar\"bin"
0 0 1 * * ls
by running crontab crontab (I have it in a ...
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273
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Passing a user input to an ssh command
I'm currently trying to create a shell script that will execute a mysqldump on a remote mysql database and then copy the output file back to my local machine. The problem I'm running into is that I ...
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Apache 2.4 unixgroup authentication not working
Require unix-group is not working for me when configuring the VirtualHost for my Apache server. Whenever I log in using pwauth, the server still authenticates users who are not members of the group ...
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958
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Send STDERR to console and file, STDOUT to file only
I have some script with STDOUT and STDERR output. By default, both STDOUT and STDERR goes to console:
./script.sh
I can redirect STDOUT to file, leaving STDERR output in console:
./script.sh > log....
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90
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How to Find which Program is generating given .dat File
I have a file in a folder on the server with ".dat" extension. I want to find which program file is generating this file.
How should I find this using putty?
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Linux Debian ACL, is default mask overriden by something in FTP?
I have an Linux Debain 10 server running an web project.
The project (parent) folder is as follows:
ls -la:
drwxrwxr--+ 7 some_user some_group 4096 Jul 21 11:01 .
getfacl:
# file: .
# owner: ...
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353
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sed not working on large files. Any other options available?
Trying to insert a line feed on large files in UNIX when a text string matches. Any file around 1GB or less, it works. Anything over that size, it does not complete the replace. It appears to do ...
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165
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Add mac address in rsyslog template
I am trying to add system/device mac address in syslog. No solution is working for me. Following command gives me mac address, just wanted to use in rsyslog template.
mac_addr=$(ifconfig en0 | awk '/...
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Cant ssh to ec2 created from AMI of recently patched server
One of my ec2 instance "patched-server-1" was running of kernel version 4.18.0-240.1.1.el8_3.x86_64 and then I did patched the server and current kernel version is 4.18.0-425.19.2.el8_7....
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274
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ldap+sssd on SuSE shows only local users
Problem: Not able to list ldap users.
Hello,
I am setting up new LDAP authentication on our SuSE 12 test system. I am a LDAP newbie and following the instructions from the site https://www.port389.org/...
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1k
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Can't enable the PHP DOM extension
I have a server that has PHP 7.4.3 installed, but it doesn't load PHP-DOM.
It's not listed in php -m or php -i, nor when I load PHP on a page.
Here's what I tried so far:
Ran sudo apt-get install php-...
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1
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46
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How to protect Jenkins from super users?
Any super user who has access to the Jenkins running on a Linux server can easily disable security authentication from config.xml file; then log in and can also decrypt sensitive passwords from ...
bsd-boo
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1
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668
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'mail' not working in Script same way it is working from command line
The below line of code/command is working as expected if I run it from Unix terminal, but not if I include it in a script and run the script - exact same.
I am expecting the X-Priority to show the ...
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146
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How do you get resize2fs to actually fit to your filesystem?
Using Ubuntu Mint here, 20.1 Cinnamon.
I'm trying to reduce a SD partition as much as possible, but when use resize2fs
sudo e2fsck -f /dev/sdb2
sudo resize2fs -M /dev/sdb2
it resizes the partition to ...
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2
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396
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Adding users to Unix groups only if said groups exist (puppet)
I tried using the 'group' attribute of the 'user' resource like so :
user {
"user":
group => ["docker", "www-data"]
}
If the groups 'docker' and 'www-data' exist ...
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1
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165
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transfer file from Unix to a writeable Windows share, if I don't have direct login rights to the latter
I'm an sa on Unix side, and there is a writeable Windows share, which I can access from my desktop using an AD service account.
How can I batch a file transfer from Unix over to that mount (it's not ...
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85
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Way to know the current shell in a given terminal
I have a shell on a Unix system.
Is there a command that can tell me which shell I am working ? (bash, zsh, etc. )
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49
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Linux analyze and monitoring log tool?
I have a server using OS centos-7, but sometimes my server got slow with some processes. I want to check which service or process makes the system slow. how to check the percentage of CPU, ram, or ...
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275
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Failed to connect to remote MySQL server via proxy
I am trying to use an R tool in which RMySQL is one of the package being used. I am working this on ubuntu behind a corporate proxy but having the following issue for three days persistently.
Error ...
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Does information piped through a Unix socket touch disk?
I'm trying to understand how fast different IPC mechanisms are, and I know it's possible to create a Unix Socket as a "file" in a directory on a filesystem, but what I don't understand is ...
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Is there a utility for detecting temporary system freezes?
Is there a (unix) utility which is able to detect temporary system freezes by observation?
E.g. I could imagine an utility which continuously fetches the system time, sleeps for a specific amount of ...
- 203
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Single SSH login for multilpe machines?
I have a number of physical (desktop) machines running at the office as part of a new network to handle processing & serving Open Source data; some of these machines also house VMs.
At the moment, ...
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281
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Geting UNIX Timestamp while logging history
I am running below bash script which is saving the history in a file, however it is logging the history with Unix epoch timestamp. I need the timestamp in human readable format.
_who_am_i=$(who am i|...
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1
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1k
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Why some companies like cisco follow different syslog messaging format rather than rfc 3164 (BSD syslog) and rfc 5424 (IETF syslog)?
According to my understanding the popular syslog formats are:
RFC 3124 (BSD syslog):
Format: < priority >timestamp hostname application: message
Example: <133>Feb 25 14:09:07 webserver ...
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407
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Why an operating system would like to be POSIX compliant? [closed]
What's the big deal around POSIX and how it interferes in the overall usage of an Operating System?
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466
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Nginx reverse proxy when port is already in use?
i am trying to close port with basic authentication (for pushgateway of prometheus), so not a big specialist in nginx, so could someone please give me and advice where i am is wrong?
I have 9091 port, ...
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Issue using dd to write 1GB file to zfs dataset on FreeBSD 13
Hey guys I am turning up a little FAMP stack on an Azure VM. 4 Xeon cores 16GB ram. Second SSD is using ZFS and the boot drive is UFS2 (Default). When I dd if=/dev/zero of=testfile bs=1024 count=...
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Replace a string from the cat output
I need to replace a string with the string which is mentioned in a file abcd.txt in all files in a folder.
For eg: I want to replace a string 'apple' with whatever the cat output of this file abcd.txt
...
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Copying files from remote to local using lftp in unix
I'm trying to write a script to copy some files from a remote ftp server to a local directory. I have seen lots of examples using the mirror command of lftp but so far none of them seem to work. ...
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NextCloud : Can you use encrypted drives / file level encryption?
I am evaluating NextCloud for a solution for which I have a requirement that files cannot exist on non encrypted disks or the files themselves cannot be individually read or cached.
I have read a lot ...
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468
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What is the maximum value acceptable for xargs -P argument? [duplicate]
In this answer they mention 10
I did man xargs and couldn't find what's the maximum limit.
Is it possible to send 10000 cURL requests per second?
How about 50000 cURL requests per second? I mean all ...
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265
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What was linux/unix time standard before inventing epoch? [closed]
As in the title, I was looking for, but hadn't found. How were time stored and processed before epoch standardizing in 2000?
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How to edit the middle of host name (%h) in ssh config?
In ssh config you can easily edit a hostname by appending or prepending it with something. For example, when you want to connect to server with ssh test5, but actually the server name is test5.mail, ...
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614
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change fastcgi directory in nginx configuration
i am not sure how to write the proper title
i have 5 ajax requests that gonna execute postgresql query in php
here is the directory
/var/www/webgis.com:
1. webgis.html
2. php(directory)
-query1....
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375
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finding docker images with tag and name
when I do docker images I have below docker images as list where there are images with multiple tag and also image with latest tag value.
REPOSITORY TAG ...
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799
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What is igrid server - port 19000?
Recently our monitoring tools is reporting a port as down, the port number is 19000.
I have never seen this port before and I don't find out good information. Doing some tests, I've seen I can telnet ...
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1
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516
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Samba username mapping not working as desired
I have the following username mapping in Samba:
master = johndoe user2 user3
regular = user5 user6
restricted = johndoe user8 user9
By default, Samba will always map johndoe to the last entry in ...
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