Questions tagged [etc]

/etc is the directory that holds the essential system and software configuration. Use this tag for questions on the organization of /etc or the syntax of configuration files within /etc. Don't use this tag for questions on the configuration of particular software.

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2answers
43 views

Someone is locking /etc/group for a very long time - what to do?

I want to change something in /etc/group - namely, to add some user to some group. But something - I don't know what or who - has created an /etc/group.lock file. fuser /etc/group.lock gives nothing, ...
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0answers
41 views

What replaces /etc/services in openSUSE, and how

I am running openSUSE Linux, the Tumbleweed version. I discovered that it does not use an /etc/services file, though I do not know what is replacing it, or how it is done, and I do not have much ...
2
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4answers
4k views

DHCP and read-only root filesystem

When doing ifup wlan0 on a system with / mounted as read-only (embedded computer), I get this error: Failed to connect to non-global ctrl_ifname: wlan0 error: Read-only file system Internet Systems ...
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1answer
33 views

Alternative to modifying /etc/hosts for dns lookup

I am a networking newb - ping cannot locate certain dns names, so I put them in /etc/hosts like this: 10.128.0.22 kafka.marathn.meso 10.128.0.31 elasticsearch.marathn.meso and then ping can find ...
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1answer
34 views

Why systemd stopping immediatly after spawning?

I am facing issue while loading vpp.service in systemd. I have written following service. [Unit] Description=Vector Packet Processing Process After=syslog.target network.target auditd.service [...
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1answer
51 views

How can I `usermod` old users with new `/etc/skel` files?

I want to "update" old users with new /etc/skel content on Debian and Ubuntu installations. Scripting this is possible... find /home -maxdepth 1 -mindepth 1 -type d | while read homedir; do user="...
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1answer
33 views

Persisting sshd_config settings

When modifying Linux configuration files, it is often recommended to place local changes under a .d directory, e.g., /etc/sudoers.d/ or /etc/apt/sources.list.d. In my understanding this is to avoid ...
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0answers
30 views

Stuck setting up multiple network interfaces with one gateway using /etc/network/interfaces

I'm an advanced noob and I'm running into the limitations of my understanding of how to set up my network. My gateway to the internet should be 10.0.1.1, and I have 2 PCI 10ge nic cards installed to ...
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0answers
88 views

Can msmtp rewrite addresses?

I am trying to get all my system emails to be forwarded to my gmail address, using msmtp 1.8.3 and /etc/aliases on debian. It works, but I get errors from gmail. When I email root (via echo "hello ...
89
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3answers
118k views

What do the scripts in /etc/profile.d do?

I am reading about basic shell scripting from Linux Command Line and Shell Scripting Bible. It says that the /etc/profile file sets the environment variables at startup of the Bash shell. The /etc/...
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1answer
78 views

Strange issue with DNS: drill works but getent hosts does not

I'm running Arch Linux ARM on a Raspberry Pi 4. I'm currently having an issue with the domain resolution. The "user space" applications including ping, web browser, etc. do not resolve hosts, although ...
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1answer
49 views

Use /etc/profile settings for passwordless user

I'm having a small issue. I have a passwordless user (jenkins) on a Unix system. This user is used by jenkins to perform some commands. Because I installed nvm on this unix system, I needed to add to /...
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0answers
192 views

vsftpd service does not start saying vsftpd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT

I am configuring with Ansible a VM running Ubuntu to run this FTP server: vsftpd, however after the installation when I inspect the logs with journalctl -u vsftpd.service I see: Nov 20 17:49:58 my-vm ...
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1answer
68 views

Password Settings of AIX

esaadmin: password = * dbahx: password = ************* sysgina: password = ************* fsecbp: password = C6qoi9yK.H0So Hi All, I am trying to understand what does password = **...
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1answer
32 views

Git/etckeeper shared between systems

I've four Raspberry PiZeroW on my system running ArchLinux ARM (alarm) that I use solely as snapclient for streaming music synchronously about the house. Initially I had one PiZeroW and I used ...
2
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3answers
337 views

Persistent systemd machine-id in a stateless (UBI/UBIFS) embedded linux environment

I have an embedded linux machine which has a read-only root filesystem which is loaded from a UBI/UBIFS. Every time the device boots it creates a new systemd machine-id which I understand from ...
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0answers
30 views

How to create user who will not be using /etc/passwd for authentication?

I want to add a user to my Ubuntu who will be authenticated using SQLite or another database. I don't want to use /etc/passwd file. How can I achieve it?
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3answers
61k views

Global bash_profile

I realize there are /etc/profile and /etc/bashrc files for setting global environment variables and maybe I'm just misunderstanding their purposes, but... Is there a global bash_profile file? I'm ...
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2answers
329 views

Unable to save file in /etc/ssh/ because incorrect permissions (Linux Mint/Debian)

When I attempt to edit '/etc/ssh/sshd_config', and save the file, I get an error saying: 'Could not save the file /etc/ssh/sshd_config. You do not have the permissions necessary to save the file.. ...
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2answers
242 views

backup - can I use git to backup /etc? [duplicate]

I am using mac, and /etc is just a symlink to /private/etc, which contains hundreds of (important) configuration files, and the total size of /private/etc directory is smaller than 1 MB. Is it a good ...
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2answers
100 views

Is the .d notation for folders in /etc recommended or not?

When building a new software that will store a directory of configuration files in /etc, should the directory be named software_name.d or just software_name? I can't seem to find good style guides ...
1
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1answer
69 views

Find hostname of Mac OS client for NFS /etc/exports (permission denied)

I'm trying to set up an NFS server to browse files from a remote Ubuntu server on a Mac client. I'm having trouble finding out what to put as my client hostname/address in the /etc/exports entry. I ...
1
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1answer
109 views

OpenBSD: Check what files under /etc has changed in comparison to pristine base system

I'm planning on setting up a new personal OpenBSD-current system by means of installing the latest OpenBSD snapshot, and I would want it to look more or less similar to my existing OpenBSD-current ...
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3answers
4k views

How to make name server address permanent in /etc/resolv.conf even after system reboot? [duplicate]

I changed nameserver in /etc/resolv.conf and after a system reboot it resets the nameserver back to what it was. I am using linux mint 19 (Cinnamon). This file is managed by man:systemd-resolved(8). ...
2
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1answer
615 views

Source of /etc/protocols and /etc/services?

Those files are databases which contain IP protocol number, alias and service mappings. As a user I don't usually interact with those in any direct way, but the need to create special Linux/GNU ...
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3answers
74 views

How to display only names of the file [closed]

How to display only the names of the last 10 services listed in /etc/services?
1
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1answer
115 views

How to populate many config files with same value(s) [closed]

I have many programs and all of them have some identical values in their config files (most, if not all, of which are in /etc). Let's say it is hostname, which is stored in the config files of Apache,...
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0answers
322 views

overlayfs root filesystem, cannot read /etc/mtab

I'm doing the following: mkdir /tmp/upper /tmp/work mount -t overlay overlay -o lowerdir=/,upperdir=/tmp/upper,workdir=/tmp/work / ls -l /etc/mtab > lrwxrwxrwx 1 root root 19 27. Feb 09:16 /etc/...
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0answers
56 views

By enabling automatic security updates on CentOS/RHEL 7 how can I control the rest?

If I enable automatic security updates via "update_cmd = security" in "/etc/yum/yum-cron.conf" how am I able to control the "default" behavior of the other packages?
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0answers
139 views

A more permanent change to readonly squashfs mounted /etc

I have an IP-camera with the BusyBox v1.22.1 operating system that has some accounts either without or with public known passwords that I want to change to make it more secure. I have managed to log ...
0
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1answer
316 views

What is the difference between using crontab -e and /etc/crontab [duplicate]

I wish to run stuff from startup and also trigger reboots using cron. I was using sudo crontab -e and adding commands there. The commands work apart from the reboots. The reboots do not happen all ...
1
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1answer
526 views

Unable to edit auto_master under macOS Mojave [closed]

I'm running macOS since several years and I have an auto_master file that contains my mounts config. On a new Macbook, I cannot edit this file which is in the /etc folder and I have the following ...
0
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1answer
293 views

Why does the primary group of my user show up in /etc/group?

I'm following a course about Linux and it states the following: "The primary group of a user is not mentioned in the /etc/group file." However, my primary user "timgeldof" actually does show up in ...
4
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1answer
929 views

Why should one use update-locale instead of directly setting LANGUAGE?

In Debian, I am used to set the LANGUAGE environment variable in /etc/environment. Now with Debian testing I found /etc/default/locale, which is updated by update-locale. The update-locale man page ...
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2answers
1k views

su -s '/bin/bash' continues to use shell in /etc/passwd

I manually edited the shell for root in /etc/passwd and I have a typo. Making it worse, I have no sudo user on the box. So I have tried the following, with the following result: $ su -s '/bin/bash ...
0
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1answer
132 views

Where you set path for golang or java in ubuntu?

In some tutorials path is set in ~/.profile however in some other tutorials they use etc/path or ~/.bashrc, can you explain whats the difference and how it works in linux.
3
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1answer
3k views

Are http://cdn-fastly.deb.debian.org/ and deb.debian.org one and the same service?

Sometime back, I had noticed that httpredir.debian.org no longer works or works a bit weirdly. I started using cdn-fastly.debian.org . This is how my /etc/apt/sources.list is setup currently - $ cat ...
0
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2answers
93 views

How do I change a section of a host name permanently on multiple host names as a root user?

I am doing a project for uni and an unsure how to proceed i have been given the task of changing hosts name from one thing to another on a unix box I am logged in to the box as root the host name is ...
39
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3answers
32k views

/etc/hosts file refer to another configuration file

How can I get the /etc/hosts file to refer to another configuration file for it's list of hosts? Example /etc/hosts: ## My Hosts 127.0.0.1 localhost 255.255.255.255 broadcasthost #Other ...
0
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1answer
174 views

MAXWEEKS on Solaris is equals to 13

I have a server where MAXWEEKS is set to 13 in etc/default/passwd. I know that this setting means that password will expire after 13 weeks. My question is if the user does NOT change the password, ...
1
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1answer
44 views

Is there any way of resizing /etc directory in linux machine [closed]

I have tried to create a partition name "/etc' at OS installation time and my installation was not working.When I cancel creating "/etc" directory than it worked. Though all configuration files are ...
1
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1answer
1k views

Different Debian releases in /etc/issue

The /etc/issue of my Debian testing references two different releases: stretch, which is supposed to be testing, and sid, aka unstable. What does that mean? That I have a mix of packages from the two ...
2
votes
1answer
322 views

Whitespaces in /etc/exports

I've read the following in a website [1]: /etc/exports is very sensitive to whitespace - so the following statements are not the same: /export/dir hostname(rw,no_root_squash) /export/dir ...
0
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1answer
501 views

/etc/bashrc overrides my settings in home .bashrc

i have the following code for my prompt in .bashrc in home dir: PS1_TIME='\033[01;31m\]\t \033[01;32m\]' PS1_USERNAME='\[\e[1;36m\]\u\e[1;37m\]@\e[1;32m\]\h\[\033[00m\]' PS1_LOCATION='\[\033[01;34m\]\...
1
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1answer
283 views

user resources csh.login restrictions

I need to fix a vulnerability in a RedHat 6 server: File /etc/csh.login must exist, and must trigger an invocation of source /etc/profile.d/IBMsinit.sh. I verified file csh.login is in /etc, but I ...
4
votes
1answer
1k views

How to write an automatically sourced shell script to /etc/profile

I heard through the grapevine that files in /etc/profile will be automatically sourced by bash upon login? I tried writing something simple to /etc/profile: echo "echo 'foo'" > /etc/profile/foo....
22
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1answer
7k views

/etc/udev/rules.d/ vs /lib/udev/rules.d/ - which to use and why?

The Arch wiki recommended creating a file in /etc/udev/rules.d/ to fix my Steam controller issues. This worked! However, I noticed that there are no other rules in this folder except for the one I ...
4
votes
5answers
5k views

Moving /etc to separate partition

How to put /etc on separate partition? Obviously i can't do that by editing /etc/fstab like i did with /home, because... it's in /etc. I want /etc and /home on one partition (sda7), and the rest on ...
0
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0answers
128 views

Shall I run a sudo-required script in some shell configuration file?

Is it a good idea to put a sudo command in a shell configuration file? I have a bash script /home/t/bin/changeCpuFreq.sh which can change my cpu frequency. The line 40 in my script is echo $1 > /...
2
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2answers
965 views

How to manage /etc/passwd file

Let's say I want to keep the /etc/passwd file divided into system users like admin, wheel, root etc., and by actual users all at the end. How do I do that? By creating subdirectories?