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Questions tagged [freebsd]

FreeBSD is an advanced operating system for a variety of architectures. It is derived from BSD, the version of UNIX® developed at the University of California, Berkeley; and is developed and maintained by a large team of individuals. It is a complete Operating System, including the kernel, drivers, ...

128
votes
11answers
17k views

FreeBSD: Directory called ^C (really!) - how to remove?

I made a typo: $ history 169 9:34 la /usr/local/etc/ 170 9:35 sudo mkdir ^C 171 9:36 sudo mkdir /usr/local/etc/dnsmasq.d Now I have a file that is called ^C (ctrl+C)!! When I use ls I just ...
125
votes
4answers
169k views

FreeBSD performance tuning: Sysctl parameter, loader.conf, kernel

I wanted to share knowledge of tuning FreeBSD via sysctl.conf / loader.conf / KENCONF / etc. It was initially based on Igor Sysoev's (author of nginx) presentation about FreeBSD tuning up to 100,000-...
41
votes
6answers
11k views

ZFS on FreeBSD: recovery from data corruption

I have several TBs of very valuable personal data in a zpool which I can not access due to data corruption. The pool was originally set up back in 2009 or so on a FreeBSD 7.2 system running inside a ...
39
votes
1answer
2k views

I am going to chop the FreeBSD automounter into little pieces and boil them in oil

I am trying to expose a hierarchy of home directories to a number of FreeBSD jails. The home directories are configured such that each is a unique ZFS dataset. The jails are used for development ...
36
votes
4answers
140k views

Check OpenSSH version and update instructions on FreeBSD system

On a FreeBSD system (8.1), I am looking for instructions on how to check the running version of OpenSSH and also instructions on the best way to download install an update of OpenSSH
31
votes
9answers
43k views

Why is Linux more popular than BSD? [closed]

Some would argue that BSD/Unix has always been more reliable and stable than Linux (not me, of course, don't hurt me!). Why does Linux always seem to beat BSD? Is it the romance of the Linux story? I ...
29
votes
8answers
8k views

Delete 10M+ files from ZFS, effectively

I have written a buggy program that has accidentally created about 30M files under /tmp. (The bug was introduced some weeks ago, and it was creating a couple of subdirectories per second.) I could ...
26
votes
10answers
8k views

I just did a chmod -x chmod

So I did a chmod -x chmod. How I can fix this problem? How do I give execute rights back to chmod?
26
votes
6answers
49k views

FreeBSD vs Linux performance? [closed]

I know that FreeBSD is famous for being highly stable, secure and of course open source. So I am going to try it on one of my servers. However, I am wondering what are the pros and cons of Using ...
21
votes
5answers
54k views

How can I tell how much RAM is installed on a FreeBSD server?

As per the title: How can I tell how much RAM is installed on a FreeBSD server? Thanks!
21
votes
6answers
4k views

How bad is it to have multiple devices with the same SSH server keys?

I am working on an embedded device that runs FreeBSD and SSH. As you know, sshd likes to randomly generate a set of server keys when it first boots up. The problem is that we will be shipping the ...
19
votes
4answers
7k views

How do you manage and deploy FreeBSD's ports in a large environment?

I'm curious to how people are deploying FreeBSD's ports in their environment. I assume that most people using FreeBSD are indeed using Ports (and often portupgrade for upgrading with binaries). I am ...
16
votes
3answers
11k views

FreeBSD: How to know real file size on zfs with compression on?

I'm using zfs on my FreeBSD 9.0 x64 and pretty happy with it, but I find it hard to count directory real, not compressed, size. Surely I can walk over the directory and count every file size with ls,...
15
votes
3answers
2k views

Log every command executed from root

I want to give access to my root server to an external system administrator, but i want to be sure to double check what he is doing to my server, e.g. copying data i don't want them to do and so on. I ...
15
votes
3answers
12k views

How can I scroll back the output in FreeBSD's console without Scroll Lock?

I've installed FreeBSD inside a VM on a laptop. As it turns out, the laptop keyboard has no Scroll Lock key, which is used for scrolling the screen back in FreeBSD's console. How can I scroll back the ...
14
votes
5answers
4k views

Getting ;5D when hitting ctrl + arrow key in a Terminal on FreeBSD

On centos I can skip a word by hitting ctrl + arrow (left or right) in a terminal. When I ssh into a FreeBSD box and I try the same pattern I get: $ tail -f 20120412.log;5D;5D;5D (each try = ;5D) ...
14
votes
6answers
5k views

OpenBSD, FreeBSD: your update philosophy?

I've used FreeBSD for about 5 years - server/Desktop - and I've tended to take my apt-get/yum upgrade everything habits along with me ( I admin Debian/RHEL/Cent boxes as well -- I know, I know ......
14
votes
4answers
2k views

Why does slice C or slice 2 cover the entire disk

Something that I was discussing with a couple of friends and we were unable to figure it out. In FreeBSD and OpenSolaris/Solaris when you partition a drive a partition is created that covers the whole ...
13
votes
6answers
33k views

How to Find a file in FreeBSD

I'm trying to locate all copies of example.filename on my FreeBSD server. What's the best / easiest / most efficient way to do this?
13
votes
5answers
25k views

Need to identify disk in zpool … how?

I need to replace a bad disk in a zpool on FreeNAS. zpool status shows gptid/5fe33556-3ff2-11e2-9437-f46d049aaeca UNAVAIL 0 0 0 cannot open How do I find the serial # of that disk? ...
12
votes
23answers
25k views

Best practices to block social sites

In our company we have around 100 workstations with Internet access, and the day-to-day situation is getting worse and worse from the perspective of using Internet access for the purpose of doing ...
12
votes
5answers
3k views

Backing up a MySQL database via ZFS snapshots

I've found a number of sites talking about doing exactly this, but I'm missing a few important details. The general steps are Run FLUSH TABLES WITH READ LOCK Take the ZFS snapshot Run UNLOCK TABLES ...
12
votes
2answers
794 views

Bare metal or virtualize?

I am looking to upgrade servers and am trying to figure out a good plan. We currently have 4 servers: OpenBSD firewall/VPN server FreeNAS backup servers (local) that receives ZFS snapshots FreeNAS ...
12
votes
7answers
5k views

Cloud Providers that support FreeBSD? [closed]

NOTE: Even though I've accepted an answer for this, if you have a better one, please put it below. Thanks! I'm looking for recommendations from the wise and all-knowing Server Fault community on ...
12
votes
4answers
13k views

Possible to disable “You have new mail in /var/mail/root”?

I would like to disable the mailcheck in FreeBSD 9.1. My login shell is BASH, so I have tried to add unset MAILCHECK in /root/.bashrc and /root/.profile, but I still get those messages. Question ...
12
votes
3answers
21k views

NOQUEUE: reject: RCPT from on freebsd and postfix

I am building a server using this config -> http://www.purplehat.org/?page_id=4 and when trying to test basic email capabilities I get -> NOQUEUE: reject: RCPT from when try to send a test email. ...
11
votes
1answer
3k views

FREENAS: Why isn't mv command instant within a RAIDZ1 volume?

I'm currently 'reorganizing' file structure within a RAIDZ1 volume. Moving directories from one dataset to another, which are both contained on the same volume. SSH'ed into the machine and did a ...
11
votes
3answers
10k views

Should I create ZFS zpools with whole disks or partitions?

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 ...
10
votes
5answers
20k views

Can I change a user password in Linux from the command line with no interactivity?

I have a specific use case where I would really like to be able to change a user's password with a single command with no interactivity. This is being done in a safe fashion (over SSH, and on a system ...
10
votes
4answers
21k views

Dovecot user lookup fails when using username@domain format

I have Dovecot v2.0.11 installed on a FreeBSD server and the user lookups for incoming email addresses are failing, but lookups for system users is successful. Dovecot is setup to use system users, ...
10
votes
4answers
8k views

Can I trust that ZFS is consistent between Linux and FreeBSD?

I'm planning to build a FreeNAS box sometime soon, but if ZFS on Linux eventually proves to be reliable, I might want to switch, just to have a more familiar OS. So I'm wondering if I can trust that ...
10
votes
1answer
420 views

FreeBSD Jails or Docker instances

What are the main differences between jails on FreeBSD and Docker on Linux? Is one considerably more secure or more performant than the other? Jails are way older than Docker instances so the code ...
10
votes
5answers
8k views

FreeBSD jails vs virtualization performance

I'll soon buy myself a nice server (something like the quad-cpu HP DL585) for personal use (home related stuff, data-mining projects, web server and some cron jobs), and I wonder how to separate all ...
10
votes
1answer
7k views

How can I get FreeNAS and pfSense to report more using SNMP?

I have two servers which run variants of FreeBSD: One is a pfSense router and one is a FreeNAS 8 server. Both these servers run SNMP, and I am collecting and graphing their information using a third ...
10
votes
1answer
4k views

FreeBSD link aggregation no faster than single link

We put a 4 port Intel I340-T4 NIC in a FreeBSD 9.3 server1 and configured it for link aggregation in LACP mode in an attempt to decrease the time it takes to mirror 8 to 16 TiB of data from a master ...
10
votes
2answers
796 views

Freebsd change default Internet channel route

I have two Internet channel and Gateway on freebsd. When I switch channel with the command route change default chan2, the command netstat -nr shows changed default route. But traceroute shows that ...
9
votes
6answers
11k views

Recommendations on ZFS on FreeBSD as a NAS box?

Please note that the answers on this page are from 2009, and should not be relied on as gospel. If you have a specific question about zfs then please click the Ask a Question button and ask a specific ...
9
votes
2answers
18k views

Need to replace disk in zpool … confused

I need to replace a bad disk in a zpool on FreeNAS. zpool status shows pool: raid-5x3 state: ONLINE scrub: scrub completed after 15h52m with 0 errors on Sun Mar 30 13:52:46 2014 config: ...
9
votes
5answers
15k views

ZFS Sync over unreliable, slow WAN. ZFS replication, or rsync?

I've been tasked with making an off-site backup work over the WAN. Both storage boxes are FreeBSD based NAS boxes running ZFS. Once or twice a week, 15-60 gigs of photography data gets dumped to the ...
9
votes
3answers
14k views

How to install python3.4-pip in FreeBSD 10.1?

I searched in the ports and can't find a pip installation package other than the pip for python27 py27-pip-6.1.1. Which way is the best for installing pip for python 3.x in FreeBSD 10.1? Or is it ...
9
votes
5answers
22k views

How to integrate Active Directory with FreeBSD 10.0 using security/sssd?

What are the required steps to authenticate users from an Active Directory running on Windows Server 2012 R2 in FreeBSD 10.0 using sssd with the AD backend with Kerberos TGT working?
9
votes
4answers
11k views

FreeBSD Ports: How can I see all dependencies for a port, and all subdependencies for those dependencies?

I'm trying to build a port which depends on apache-ant. I thought I could run make build-depends-list to see all dependencies required by this port: # make build-depends-list /usr/ports/devel/apache-...
9
votes
4answers
5k views

Why can't I ping an address on the loopback device under FreeBSD?

From Wikipedia: The most commonly used IP address on the loopback device is 127.0.0.1 for IPv4, although any address in the range 127.0.0.0 to 127.255.255.255 is mapped to it. This is not true,...
9
votes
1answer
2k views

FreeBSD: periodic(8) is too noisy. How can I control the noise level?

FreeBSD & MacOSX ship with the the periodic(8) utility, which is a neatly organized set of utilities to periodically run system functions like ZFS filesystem checks, security checks, checking for ...
8
votes
5answers
2k views

Where is the central ZFS website now?

Oracle dumped OpenSolaris in Fall 2010, and it is unclear if Oracle will continue to publicly release updates to ZFS, except maybe after they release their next major version of Solaris. FreeBSD now ...
8
votes
1answer
13k views

How to change default shell in FreeBSD?

The default shell in FreeBSD is sh and I really can't stand it: autocomplete is very limited, and rehash commands kill me. I feel like a one armed and one legged man... How can I change the shell ...
8
votes
3answers
1k views

FreeBSD 8.2, deleted /bin/sh, can't boot

I made a really bad decision on one of my servers. I deleted /bin/sh. I restarted the server and the server won't run because it needs /bin/sh to start the rc scripts. I can't access single user mode ...
8
votes
3answers
11k views

ZFS volume as ISCSI target

I'm looking into ZFS and using FreeNAS for ZFS management and have the following question: Do the ZFS advantages as deduplication, auto error fixing etc still work when creating an iSCSI target on a ...
8
votes
1answer
11k views

How can I start a shell inside a jail on FreeBSD?

I have access to a a previously set up FreeBSD box with a number of jails on it. One of the jails is an SQL server, and does not have ssh enabled on it. How can I gain access to a shell on that jail ...
8
votes
9answers
14k views

Simple web-frontend for remote svn administration? [closed]

We run a SVN repository. Some of our more advanced users need to be able to perform some SVN administration without relying on the system administrator. They need to be able to do things like create ...