Questions tagged [bsd]

The BSD (Berkeley Software Distribution) is a UNIX operating system developed by University of California at Berkeley during the 70s and 80s.

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How To SetUP SOCKS5 Proxy Server on Linux based OS

What is the best way to setup SOCKS5 proxy server on *nix? I have tried a lot of solutions but really not impressed For instance one GO-based solution just not working, another option is to use ssh ...
9 votes
2 answers
6k views

UTF-8 locale portability (and ssh)

I spend a lot of my time sshed into various machines, all of which are different (some are embedded, some run Linux, some run BSD, &c.). On my own local machines, however, i use OS X, which of ...
0 votes
3 answers
4k views

how can I get the yes command to force overwrite and to do so with new lines?

I would like cp to prompt before overwriting so I am using -i. (I might sometimes use an alias for cp, or similar, so cp always occurs with -i). I may want to say overwrite all. I know that's the ...
0 votes
1 answer
103 views

Mount remote directory of server with no direct route but having an intermediate server that only receives ssh connections

The setup I'm facing is this one: In server A I'd like to mount a directory (let's call it SHARED) from server B. There is no route and no way to add any from A to B or from B to A. The inverse, to ...
16 votes
4 answers
7k views

What's the simplest way to display a browser-based interface on a computer without a GUI?

I am converting an old laptop into what will basically just be a terminal for some of my other computers. For the most part, I only need to ssh into my computers, and that I can do with any CLI-based ...
5 votes
4 answers
6k views

Is there a native alternative to the `watch` command; for Darwin/OS X

I have a script that I'm trying to port from Linux to Darwin/OS X. The Linux version currently depends on the watch command, which doesn't appear to be installed on Darwin/OS X by default. What's the ...
3 votes
1 answer
3k views

Port forwarding outgoing request with PF

I'm trying to redirect all outgoing traffic from my local machine on port 843, to go to my local service on port 1234. So, when I make a request to e.g. 1.2.3.4:843, I want it to connect to 127.0.0.1:...
1 vote
2 answers
325 views

Delete emails from specific source in mailx/BSD mail

I need to delete all emails from a specific source. I can list all of the emails with the f [email protected] but I'm having to dump it to something like awk and back into mail... or copy all of ...
11 votes
8 answers
5k views

Mass renaming, *nix version

I was looking for a way to rename a huge number of similarly-named files, much like this one (a Windows-related question) except that I'm using *nix (Ubuntu and FreeBSD, separately). Just to sum up, ...
0 votes
3 answers
143 views

What is a better approach for ZFS?

I am making zpools on FreeBSD machine. While creating zpools I observe these two cases:- If I take raw disks and create zpool then I am able to form zpools and they are working perfectly. If I format ...
1 vote
1 answer
534 views

Can you underline directories in zsh with ls?

I would like to underline directories when I do ls. Is this possible in a default Mac terminal and zsh? Or do I need something like iTerm2 + ohmyzsh. From what I found LSCOLORS doesn't support ...
1 vote
0 answers
294 views

Moving the mouse cursor (not just screen) in vim

With my .vimrc under Linux I can scroll using my mouse wheel and the cursor itself goes up and down, shifting the lines shown on the screen if necessary. Using the same .vimrc and vim installed from ...
17 votes
4 answers
5k views

Why aren't all Mac applications easily portable to Linux?

Since the Apple OS-X operating system is a UNIX derivative (BSD), and the underlying (Intel) Mac architecture is the same, why isn't it very straightforward to get Apple-specific applications running ...
15 votes
2 answers
34k views

Recursively compress files in a directory and subdirectories using command line "zip" tool in Mac OS X and exclude .DS_Store files from ALL subfolders

I'm trying to create a ZIP file using the command line zip tool that comes with the Mac OS X Terminal. I want to recursively compress the contents of the current folder but excluding .DS_Store files. ...
0 votes
1 answer
1k views

vi command line editing insert mode overwrite

I'm using Windows Terminal (TERM=xterm-256color) in a bash shell under Ubuntu: uname -a Linux xxxxxxx 4.19.128-microsoft-standard #1 SMP Tue Jun 23 12:58:10 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux I'...
2 votes
0 answers
1k views

What is the explanation of the network flags in MacOSX? [closed]

Good morning. Could someone explain to me the meaning of the flags in the routing table? For example if you check the output of netstat -nr you will have lines like this: default 192.168.2....
1 vote
1 answer
54 views

Besides BSD and Linux, are there any other open-source Unix descendants currently in development? [closed]

This week I'm going to install every major BSD and Linux distro and learn for myself how they differ. Are there any other Unix open-source projects besides these two ancestors that I should consider ...
0 votes
1 answer
356 views

I accidentally ran `rm -rf /` what should I do

I accidentally ran rm -rf / on my macos machine, most files were protected since I was not running the command as root, but I definitely lost some files in /usr/local, are there any other files I ...
0 votes
2 answers
225 views

Installing a second OS carries a risk of data loss; even your PC's user manual says so. If you have backups, is it now okay to install a second OS?

Background A variety of Samsung laptops say something like this in their user manuals (PDF): If you change the product's factory OS (Operating System) to another OS, or if you install software which ...
0 votes
0 answers
113 views

INACCESSIBLE BOOT DEVICE BSOD on Windows 10

I am getting the error INACCESSIBLE BOOT DEVICE, I have tried everything.the computer is in an infinite loop of restarting. Safe mode doesn't start, the reset this PC doesn't work, the uninstall ...
3 votes
1 answer
4k views

How to install GCC or a compiler on FreeNAS 7.2

I have a NAS, running FreeNAS 0.7.2 (FreeBSD 7.3). I have tried to install Flexget, but it requires some pysqlite dependency. I have python 2.6 and python-setuptools. Running pysqlite-2.6.0/setup....
2 votes
4 answers
16k views

trying to install FreeBSD from a pen drive. Failed with error 19

I am trying to install FreeBSD from a pen drive. But it returns an error on boot. cd9660 :/dev/iso9660 error :/dev/iso9660/FREEBSD_INSTALL failed with error 19 and appears mountroot> command ? ...
2 votes
1 answer
7k views

pkg install using specific version of Python in FreeBSD?

How do you 'pkg install' a package using specific version of Python in FreeBSD 11? say I want to 'pkg install' using Python 3?
7 votes
2 answers
3k views

Interactive search of tmux sessions

When switching between tmux sessions with the interactive session menu (<prefix>-s), you can jump to a specific session by typing the session's numeric or alphabetical index, e.g. (0) + ...
4 votes
2 answers
14k views

How could a hacker access the /etc/shadow file if it is only accessible by root and they do not have root access?

I am reading a book on ethical hacking, and it has some examples in Python which I won't post here unless asked since this isn't Stack Overflow. But, I was wondering, if a hacker was trying to access ...
1 vote
1 answer
270 views

Can I share my home among multiple operating systems?

Is it possible to have on the same hard disk a single home partition (e.g. EXT4), shared by multiple operating systems? What I would like to do is to install Linux, HURD and DragonFlyBSD on the same ...
2 votes
1 answer
2k views

PF rule using return-rst on Mac OS X does not reply with TCP reset

I'm trying to add a simple PF rule: block return-rst out proto tcp from any to any port 33128 to filter all outgoing traffic to TCP port 33128, and I'd like it to respond with a reset. However, when ...
11 votes
2 answers
5k views

How do you determine if you're on a Linux or BSD system inside a script?

I've got a rather extensive selection of dotfiles thats been kept in a git repo for the longest time - I just maintain a separate branch of code for bsd-isms (for instance, on Linux, to get colored ls ...
2 votes
1 answer
5k views

How to connect to Cisco W3550 with FreeBSD

There is a pfsense 2.0.1 (FreeBSD) and the command cu for access to the serial console, there is a Cisco W3550 attached but I can't get a connection. I try following Command: cu /dev/cuau0 -speed ...
22 votes
1 answer
39k views

How to change virtual ttys in Linux and OpenBSD with console commands?

In Linux one presses Alt-F1, Alt-F2 etc to change virtual ttys. In OpenBSD one shall use Ctrl-Alt-F1 etc instead. Are there are console commands for these two operating systems that can be issued to ...
5 votes
5 answers
3k views

How to chain awk print statements?

Okay, here's a quick example; me isolating a host's IPV4 in three steps: ip -br a lo UNKNOWN 127.0.0.1/8 ::1/128 eth0 DOWN wlan0 UP ...
0 votes
0 answers
488 views

conversion from GNU sed to BSD sed

I am new to sed and am trying to implement this answer on a mac. After some quick research I believe I have to convert the code to BSD sed. I haven't had much success looking into the BSD sed ...
19 votes
4 answers
8k views

What is the reason for rmdir(1) and rm(1) to co-exist?

I use BSD and Linux every day, I have never had a circumstance which I must use rmdir(1) rather than rm(1). What's the purpose of rmdir's existence?
0 votes
1 answer
74 views

Why does blocksize arguments change for shell utilities on Linux vs OSX?

When following a tutorial for flashing a ROM that uses the dd utility, I received an console warning that '1M' was not a supported blocksize. OSX requires a blocksize of '1m'. What is the root ...
1 vote
2 answers
1k views

Why doesn't ls -lh show the total size of all the files and directories in each directory?

For example, it shows the kernel as being 18M but the Applications folder as being 3.8K BSD/Darwin
0 votes
0 answers
206 views

What version of tar does 7-zip use?

Does anyone know what version of tar 7zip uses for archiving/extracting? Is it gnu tar or bsd tar... or something else? I've googled around for an answer but can't find anything.
2 votes
3 answers
2k views

Lenovo S20 workstation allergic to Linux?

I got a new Lenovo S20 and I am having trouble loading Linux. I've loaded these variants with no success: Ubuntu desktop Ubuntu server Linux Mint CentOS vmWare esxi The live CD's run, and very ...
0 votes
1 answer
707 views

Using specific grep flags from BSD general commands version on a Mac

So I have been using a command piped through curl (on GNU/Linux's grep utility) to generate a random password string for tightening security on some of my accounts. curl -s https://www.grc.com/...
1 vote
0 answers
251 views

bsd (osx) pf nat - change source port on outgoing UDP packets

I am running docker-machine on osx. docker-machine is running NAT so when my container send out a UDP packet on port 1812, NAT is translating it to some random port. I am playing around with pf nat (...
161 votes
3 answers
8k views

On OS X, why does `sudo ls` show hidden (dot) files?

With OS X Yosemite, using the following commands, I get the following: $ touch .a $ touch b $ /bin/ls b $ /bin/ls -A .a b $ sudo /bin/ls .a b It shows hidden files (that have names starting with a ...
2 votes
1 answer
2k views

Why is Bash reporting “command not found” in some cases in the Terminal but not in others?

Often, but not always, when I start the Terminal on my computer and use pipe (|) in a command, pbpaste | wc as an example, bash gives -bash:  wc: command not found. (The double space is not a typo). ...
1 vote
1 answer
1k views

Alternate location for GPT partition entry table

The GPT header (usually in LBA 1) has a PartitionEntryLBA field (see 5.3.2 GPT Header in the spec). There is language in various references (such as the wikipedia GPT entry) describing that field ...
8 votes
1 answer
723 views

Forcing *BSD to accept both IPv4 and IPv6 traffic on a single socket

I have tried a ton of stuff and keep coming up entirely empty handed. Allow me to frame the situation: I have a *BSD Jail setup in FreeNAS that runs a Plex Media Server (Plexpass). It has IPv6 ...
27 votes
2 answers
34k views

Why do we use cp to copy files and not dd? (in unix-derivatives)

For normal file copying in *nix, I've only ever seen people use cp (eg. cp /mnt/mydevice/myfile ~/myfile), but I eventually ran into dd, which appears to do the exact same thing (dd if=/mnt/mydevice/...
1 vote
0 answers
1k views

Netstat VS Netstat (Gnu/Linux VS BSD/Mac OS X)

Why are there different versions of netstat for Gnu/Linux and BSD/Mac OS X? I'm trying to get the latter to respond & behave more like the former.
1 vote
0 answers
278 views

mod_python won't "./configure" on BSD

I'm trying to install mod_python 3.3.1 on Apache 2.4.3 and whenever I try to run ./configure (with apxs etc), instead of configuring correctly, it says that Apache 2.x is required and my current ...
23 votes
11 answers
32k views

Inverse multiplexing to speed up file transfer

I have send a large amount of data from one machine to another. If I send with rsync (or any other method), it will go at a steady 320kb/sec. If I initiate two or three transfers at once, each will go ...
18 votes
3 answers
19k views

What is the BSD equivalent of Linux `netstat -lptun`?

In Linux, netstat -lptun gives a list of servers with the following details: protocol local and foreign address state PID and program name What is the command's equivalent in FreeBSD? Thanks.
1 vote
2 answers
42 views

Compare list of files from a database using find to locate missing files

I have a list of 2000 files from a database that looks like this: ./aa/0f/unique-string/IMG_0987.JPG ./ab/cf/unique-string/IMG_0987.JPG I want to compare that list to the actual directory contents ...
4 votes
1 answer
7k views

Why can't I use my newly created user with chown?

So I am attempting to create a new user and group, and then change ownership of a directory to that new user/group. However, when I do, chown comes back with an "illegal user name" message. Here's a ...