Primitatvve

i'd open port 873 on pc running ubuntu 16.04. ssh pc, type sudo ufw allow 873 status can checked sudo ufw status : status: active action -- ------ ---- 873 allow anywhere 873 (v6) allow anywhere (v6) however, don't think port open, because nmap localhost -p873 returns starting nmap 7.01 ( https://nmap.org ) @ 2016-10-21 hh:mm edt nmap scan report localhost (127.0.0.1) host (0.00017s latency). port state service 873/tcp closed rsync nmap done: 1 ip address (1 host up) scanned in 0.06 seconds why so, , how open port 873?

i did upgrade 2 days ago. went bed, woke no errors, , rebooted. unity got stuck in login loop (unity 8 freezes). after trial , error (basically googling whatever answers can find, throwing them @ wall, , seeing sticks), ended w/ xubuntu installed (it "works," bunch of compiz crashes waiting report once logged in), , led me switching nouveau, unity "works" (i can't remember else attempted). unity 8 still doesn't work (though that's not concern). fine on 15.10 (mostly - hello again, nomodeset) , 16.04 (completely). apparently, 304.132 broken on distributions. there way force install 304.131 , ignore updates? package nvidia's site not work @ (bombs out, won't finish install). nouveau fine, something's not reading edid correctly (or @ all, since 16.04 , 15.10 correctly identified monitor down brand , model), i'm stuck @ 1280x1024 (sucks, should 1680x1050). dread day might fix tv again , go dual-monitor setup. video card geforce 7800 gt, o

this question has answer here: my computer boots black screen, options have fix it? 32 answers 14.10 live cd black screen 2 answers so burned ubuntu 16.04 on live cd. i have uefi motherboard, when booted ubuntu, shows loading screen, goes black, not responding @ all. i tried linux mint disc, , worked fine. ubuntu live cd refuses boot up. what did far: turned fast boot off turned fast startup off in windows. turned secure boot off. turned igpu off. (i run 2 monitors, 1 in gpu , 1 in igpu) system specs if needed: core i3 4130 8 gb of ram gtx 750 ti gigabyte ga-h81m-hd3

i accidentally ran sudo mount /dev/sdc1 /media since input/output error when trying make directory in /media. i'm using lubuntu. every usb device automatically mounted in /media. @ moment can't mount anything. please! you can't mount multiple partitions under same directory. separate mount points mount points should made each, such as, example: /media/external01 /media/external02 /media/... by default, ubuntu creates mount point of following path: /media/username/mountpoint so rid of problem, unmount first , remount using advice above.

i'm installing java , following instructions since ubuntu linux new me. don't have enough "reputation" post lot of links, made slideshow explaining it. more experienced me know how this? click see slideshow bring terminal screen typing terminal in ubuntu dash search. run on commandline (the dollar sign command prompt see in terminal): $ sudo apt install default-jre the image posted giving suggestion.

i trying change string within () , , following non-greedy pattern. input: this 1(the house owner 2(pet-name john james) john , friend 3(unknown name james) james fred) output: this 1(the house owner 2(pet-name xxx-john xxx-james) john , friend 3(unknown name xxx-james) james fred). the names within smallest () matched john or james , substituted non-greedy pattern. i tried perl, failed desired output. if strings you're working simple sample input , output, i'd you're making harder is. can search "john)" , "james)", so: $ echo "this 1(the house owner 2(pet-name john) john , friend 3(unknown name james) james fred)" | sed -r 's/(john\)|james\))/xxx-\1/g' 1(the house owner 2(pet-name xxx-john) john , friend 3(unknown name xxx-james) james fred) since mentioned non-greedy patterns, have feeling there more example shows. so, let's pretend don't know if there closing parenthesis right after names: $ e

i running ubuntu 16.04 , since few days takes around 5 min boot up. looked related questions not find how troubleshoot problem. when run: systemd-analyze blame i utput: 5min 2.242s networking.service 21.128s vboxdrv.service 5.637s networkmanager-wait-online.service 3.436s apt-daily.service 592ms dev-sda1.device 462ms lightdm.service 442ms plymouth-quit-wait.service 389ms libvirt-guests.service so guess networking.service causing problem. can me fix that? thank maybe workaround reduce boot time following answer @ https://ubuntuforums.org/showthread.php?t=2323253 , i.e. editing file: sudo vim /etc/systemd/system/network-online.targets.wants/networking.service and changing following line @ end of file: timeoutstartsec=5min to: timeoutstartsec=30sec i have rebooted system , works fine. if dont want reboot system again, reboot daemon by: sudo systemctl daemon-reload

i'm trying details of wifi network i've connected to. have tried iwlist wlan0 scan give details of connected network available networks too. , take 5 seconds data in terminal. tried iw dev wlan0 link gives exact details required lacks provide signal quality (in percentage). there command give details of wifi network essid name, address, signal quality, signal strength(rssi) . commands i've tried: sudo iwlist wlan0 scan , output is wlan0 scan completed : cell 01 - address: 30:5a:3a:9b:4a:a2 channel:6 frequency:2.437 ghz (channel 6) quality=56/70 signal level=-54 dbm encryption key:off essid:"innova1" bit rates:1 mb/s; 2 mb/s; 5.5 mb/s; 11 mb/s bit rates:6 mb/s; 9 mb/s; 12 mb/s; 18 mb/s; 24 mb/s 36 mb/s; 48 mb/s; 54 mb/s mode:master

this question has answer here: what happened “create link” feature in nautilus in ubuntu 16.10? 1 answer i upgraded ubuntu 14.04 16.04 (which appears latest). there have been number of changes annoying current worst inability "make link". have files 3.18.5 , there no longer "make link" when right click on folder or file. help... using @zanna recommendation, have solution uses ln -s , falls situation open terminal navigate file wish make link for type ln -s filename linkname copy or move link desktop mv linkname /home/user/desktop/ note: use cp instead of mv because makes easier try again when mess up. remember long file names (containing spaces) must placed in double quotes: "long file name"

i have dell latitude e7440. here specs. vendor_id : genuineintel cpu family : 6 model : 69 model name : intel(r) core(tm) i7-4600u cpu @ 2.10ghz cpu mhz : 586.933 [biostation]:~% lspci | grep vga 00:02.0 vga compatible controller: intel corporation haswell-ult integrated graphics controller (rev 0b) [biostation]:~% cat /proc/version linux version 4.4.0-45-generic (buildd@lgw01-34) (gcc version 5.4.0 20160609 (ubuntu 5.4.0-6ubuntu1~16.04.2) ) #66-ubuntu smp wed oct 19 14:12:37 utc 201 [biostation]:~% lsb_release -a no lsb modules available. distributor id: ubuntu description: ubuntu 16.04.1 lts release: 16.04 codename: xenial it has 16 gb of ram the problem have can become slow no apparent reason. e.g have chrome running 4 tabs open , terminal window ssh @ other server. i looked @ running processes , none of them seems take mem or cpu usage, plenty of ram still available, yet jerky on desktop when move around. i suspect graphics controller, d

tl;dr : how ubuntu flavor iso installation ( example lubuntu ) differ installing desktop package via apt-get ? (for instance sudo apt-get install lubuntu-desktop ) context question: some time ago answered question on askubuntu , tested in virtual machine removing unity-desktop , installing ubuntu-gnome-desktop . makes boot logo ( plymouth ) change, desktop changes, different packages installed ( gnome-network-manager instead of network-manager , if not mistaken). appeared in effect i've switched different ubuntu flavor, though started out standard ubuntu system. hence question: differentiates pre-made ubuntu flavor iso installing package ? same base underneath hood or installation iso have specific configurations ? if it's possible install flavor via package manager, why separate flavor iso's exist ? (obvious answer user convenience, think there has exist other reasons. canonical business , , makes not lot of sense business provide additional flavor iso , if sy

i want automate use of paraview using python. i'm using python 2.7, paraview 3.14.1 on ubuntu 12.04 lts. however, having problems loading required modules write python script. when run import paraview.simple i get libprotobuf error /build/buildd/paraview3.14.1/utilities/protobuf/ src/google/protobuf/descriptor_database.cc:57] file exists in database: vtkpvmessage.proto libprotobuf fatal /build/buildd/paraview3.14.1/utilities/protobuf/ src/google/protobuf/descriptor.cc:860] check failed: generated_database_- >add(encoded_file_descriptor, size): aborted (core dumped) if run import paraview help(paraview) i get name paraview file /usr/lib/python2.7/dist-packages/paraview/__init__.py module docs http://docs.python.org/library/paraview description module not meant used directly. please @ 1 of modules provides: servermanager pvfilters vtk numeric util simple : and then help(paraview.simple) a

i have working mailserver postfix, dovecot , spamassassin. spamassassin marks mail spam, cant use sieve move spammail junk folder. if run dovecot -n can see protocol lda { mail_plugins = " sieve" } protocol lmtp { mail_plugins = " sieve" } if try test sieve telnet looks works $ telnet localhost 4190 trying 127.0.0.1... connected localhost. but spammail lands in inbox , not junk if run following sieve-filter cmd roules in .dovecot.sieve works , move spammail junk $ sieve-filter -v -c -e -w -u jesper .dovecot.sieve 'inbox' it looks adding mailbox_command = /usr/lib/dovecot/deliver to /etc/postfix/main.cf and dovecot unix - n n - - pipe flags=drhu user=vmail:vmail argv=/usr/lib/dovecot/dovecot-lda -f > ${sender} -d ${recipient} to master.cf solved problem

wine saying mono package not installed installed terminal (sudo apt-get install mono-complete) should do? do below install wine-mono download wine-mono.msi official winehq site. type wine64 uninstaller press install uninstaller gui , select downloaded .msi package done !

i've got first-generation focusrite scarlett 2i2 i'd use sound card on 16.04. following instructions here , installed pulseaudio jack , qjackctl gui. however, when launch gui , check connections, can't see resembles 2i2: qjackctl screenshot the 2i2 show when run aplay -l && arecord -l : **** list of playback hardware devices **** card 0: pch [hda intel pch], device 0: alc1150 analog [alc1150 analog] subdevices: 0/1 subdevice #0: subdevice #0 card 0: pch [hda intel pch], device 1: alc1150 digital [alc1150 digital] subdevices: 1/1 subdevice #0: subdevice #0 card 2: nvidia_1 [hda nvidia], device 3: hdmi 0 [hdmi 0] subdevices: 1/1 subdevice #0: subdevice #0 card 2: nvidia_1 [hda nvidia], device 7: hdmi 1 [hdmi 1] subdevices: 1/1 subdevice #0: subdevice #0 card 2: nvidia_1 [hda nvidia], device 8: hdmi 2 [hdmi 2] subdevices: 1/1 subdevice #0: subdevice #0 card 2: nvidia_1 [hda nvid

how can find sha256 hash of webpage using linux tools (curl, etc.)? yeah, can use curl , sha256sum in single command, so: curl www.google.com | sha256sum which give: ┌─[✗]─[16:51:49]─[kazwolfe@blackhawk] └──> lib $ curl www.google.com | sha256sum % total % received % xferd average speed time time time current dload upload total spent left speed 100 10221 0 10221 0 0 15500 0 --:--:-- --:--:-- --:--:-- 15509 803d9c7538817dd8b44f0f2b3990ced288413a1b5a6d042d4216170b065e432b - your sha256 sum present down below, long string of hex code gibberish stuff below curl status output. this works because curl push website's content known stdout, typically gets shown terminal. however, when use pipe symbol ( | ), redirect stdout of 1 program stdin of another. therefore, sha256sum reading stdin curl command, being used compute sha256 value.

for netflix, silverlight or pipelight needed. i've looked @ several different places, such these sites: alternative of microsoft silverlight on ubuntu how install microsoft silverlight on mozilla firefox browser in easiest , reliable way runs on ubuntu 12.04 lts 64-bit operating system? http://www.makeuseof.com/tag/easily-enable-silverlight-watch-netflix-linux/ i've tried running of code in terminal, , says no installation candidate. know how install it? don't use pipelight. use method explained in answer question: now have firefox 49, how watch netflix?

i going install linux , full disk encryption, did research , want confirm following information correct: we first have raw hdd then create partition table on it then create /boot partition leaving rest free space then use free space physical volume encryption (encryption method = dm-crypt) then create logical volume group out of encrypted volume (so have 1 pass phrase ) then create logical volume out of logical volume group (root, swap, home ) and configure these logical volumes (root, swap, home) finally write changes disk am correct? possible procedure? take @ dual ubuntu installations whole disk encryption . describes how add secondary installation luks container created initial ubuntu installation, you'll find necessary details in there scenario. (i have added comment don't have enough of reputation yet).

i'm reading source code write directly system iptables in /system/xbin/iptables in android . want same in ubuntu without using iptables command. where iptables located on ubuntu 16.04, followed questions answers doesn't apply on version of ubuntu. find / -name iptables return /sbin/iptables contains binary , maybe man! where file iptables command writes to. iptables stores information in ram, meaning it's non-persistent. if want save/restore @ will, you'll need use couple commands. first off, use iptables normal set rules way want them. then, can freeze these rules using like: sudo iptables-save > /etc/iptables.conf then, load rules, it's simple matter of running: sudo iptables-restore < /etc/iptables.conf you can add /etc/rc.local or similar have run automatically @ boot, or can have program call executable (or pass same iptables rules on , on again).

the following animation demonstrates how unable prevent window automatically maximising in ubuntu 16.04 unity upon opening. comizconfig settings manager has "place windows" plugin can configure newly-opened windows should placed. below screenshot example of setup google chrome placement. if doesn't work, here's alternative solution. script below runs continuously , prevents maximizing of window in focus. #!/usr/bin/env python # # # author: serg kolo , contact: 1047481448@qq.com # date: oct 27, 2016 # purpose: prevents x11 windows form maximizing # written for: http://askubuntu.com/q/842317/295286 # tested on: ubuntu 16.04 lts # # copyright: serg kolo , 2016 # # permission use, copy, modify, , distribute software hereby granted # without fee, provided copyright notice above , permission statement # appear in copies. # # software provided "as is", without warranty of kind, express or # implied, including not limited wa

previously, have installed windows 7 on 320 gb laptop 3 partitions 173, 84 , 63 gb each. 63 gb partition windows installed. rest file containers. now changed os ubuntu 12.04 lts. installed ubuntu replacing entire windows 7 on 63 gb partition. rest of partitions remain ntfs windows partition , can still access them both (the 173 , 84 gb partitions). now want change 2 partitions of windows ubuntu format partitions plus importantly, want extend 63 gb partition more 100 gb because @ moment running out of memory. whenever try install application, using wine, complains shortage of memory. how do extending activity before entirely format laptop again , lose important files on partitions? (step 0:) valuable. pretty tried , tested formula things can go wrong. power cut @ wrong moment ruin day if haven't backed up. boot livecd or liveusb drive in "try me" mode. load gparted (should installed default, can apt-get if it's not) resize partitions (right clic

i have little bit problem after upgrading ubuntu 14.04 16.04. i've try estabilish ssh connections servers trough ssh after upgrade in cases have these output: unable negotiate 10.13.45.221 port 22: no matching key exchange method found. offer: diffie-hellman-group1-sha1 i know adding : ssh -okexalgorithms=+diffie-hellman-group1-sha1 user@legacyhost but maybe way enable globally , use ssh user@host in 14.04? this means diffie-hellman-group1-sha1 not present in default set of key exchange algorithms. to ssh option permanent, add follwoing ~/.ssh/config (or globally in /etc/ssh/ssh_config ): kexalgorithms=+diffie-hellman-group1-sha1 be careful host , match etc selective declarations while adding directive if want globally values inside snippets apply mentioned set only. whenever unsure, put @ top.

i have 3 partitions in hard drive first 1 contains boot files while other partitions empty. while trying copy file usb drive empty hard drives showed "the folder “xyz” cannot copied because not have permissions create in destination." should fix it? i suspect issued copy command non-root user. either become root user beforehand (sudo su -) or use sudo cp ...

i have windows 7 x64 bits on travelmate p446-m laptop. laptop comes hdd partitioned 2 ntfs partitions around 250 gbytes , 1 hidden partition recovery. installed ubuntu lts 16.04 using flash memory. during installation, re-partitioned second 250 gbytes partition following 3 partitions: 50 gbytes mount root '/' ext4 190 gbytes mount '/home' ext4. a partition swap around 12 gbytes. i selected place of boot loader whole hard-disk i.e. did not specify partition. after finished installation, not able find ubuntu in boot menu not in boot tab of msconfig in windows. tried boot-repair tool on live ubuntu on flash memory nothing changed. root@ubuntu:/home/ubuntu# parted --list model: ata wdc wd5000lplx-2 (scsi) disk /dev/sda: 500gb sector size (logical/physical): 512b/4096b partition table: gpt disk flags: number start end size file system name flags 1 1049kb 106mb 105mb fat32 efi system partition

i using ubuntu 16.04, , laptop wifi getting disconnected access point frequently(whenever keep suspend mode etc). have restart laptop again connect wifi. i have checked power management parameter, off. solution or workaround issue? make sure installed drivers network card. have rtl8188ee can follow link install drivers network card https://medium.com/@elmaxx/rtl8821ae-wifi-drivers-in-ubuntu-16-04-4c1286524afa .

i'm connecting ubunto instance, running apache/jmeter tests, , attempting use scp grab log files said tests. i connect w/ following command: ssh my-host.amazonaws.com -l my-username i'm able connect, , i'm able run tests. however, i've yet perform scp command without error. i'm using following command: scp my-username@my-machine-address.amazonaws.com:~/my-file-name.jtl ./ i following error: permission denied (publickey). any idea issue be? have rights connect machine in first place. also, "my-username" username shared couple test users, , others able perform scp command without issue. edit: here output attempting scp command w/ -v argument: my-username@ip-xx-xx-xxx-xx:~$ scp -v my-username@my-host.amazonaws.com:/home/ubuntu/jmeter.log ./ executing: program /usr/bin/ssh host my-host.amazonaws.com, user ubuntu, command scp -v -f /home/ubuntu/jmeter.log openssh_6.6.1, openssl 1.0.1f 6 jan 2014 debug1: reading configuratio

i need compile open-source software "earthworm",but stuck it;the "readme" guide says edit file create linux environment when "make" writes: set platform env var linux gnu systems or solaris solaris systems makefile:118: set di istruzioni per l'obiettivo "unix_libs" non riuscito make: *** [unix_libs] errore 1 (it's italian language) i don't know how change it,here's file: # create earthworm environment on linux! # file should sourced bourne shell wanting # run or build earthworm system under linux. # running ew on linux box if ports used, make sure # selected ports wave_serverv or exports below range specified # kernel dynamic port allocation # (see sysctl net.ipv4.ip_local_port_range) # set environment variables describing earthworm directory/version # use value elsewhere if defined (eg .bashrc) # otherwise use value after :- export ew_home="${ew_install_home:-/opt/earthworm}" export ew_version="${

i've got precision 5510 running ubuntu 16.10 kernel 4.8.4. in unity, function keys brightness work correctly. xbacklight commands don't anything. xbacklight -get comes empty. there way increase / decrease brightness through command line? need work in i3wm. you may modify value in /sys/class/backlight/{may vary}_backlight/brightness example: sudo nano /sys/class/backlight/intel_backlight/brightness this tool https://github.com/multiplexd/brightlight use this: bindsym xf86monbrightnessup exec --no-startup-id brightlight -i 20 bindsym xf86monbrightnessdown exec --no-startup-id brightlight -d 20

i'm tryin' install wine on ubuntu 14.04 using software center , there stuff: zależności dla następujących pakietów, nie zostały spełnione: unity-control-center: depends: libpulse-mainloop-glib0 (>= 1:0.99.1) ale 1:4.0-0ubuntu11.1 zostanie zainstalowany depends: libpulse0 (>= 1:0.99.1) ale 1:4.0-0ubuntu11.1 zostanie zainstalowany depends: libxi6 (>= 2:1.2.99.4) ale 2:1.7.1.901-1ubuntu1.1 zostanie zainstalowany wine: google translate version: according following packages have not been met: unity-control-center: depends: libpulse-mainloop-glib0 (> = 1: 0.99.1), 1: 4.0-0ubuntu11.1 installed depends: libpulse0 (> = 1: 0.99.1), 1: 4.0-0ubuntu11 .1 installed depends: libxi6 (> = 2: 1.2.99.4), 2: 1.7.1.901-1ubuntu1.1 wine installed: how fix that? tried using terminal: czytanie list pakietów... gotowe budowanie drzewa zależności odczyt informacji o stanie... gotowe nie udało się zainstalować niektórych pakietów. mo

(just bit of context: i'm new ubuntu , i'm trying hang of terminal , installing programs on pc. trying install media player mpv, first requested me make sure git installed, here am.) i typed git on command line, , said program not installed. went ahead and: $ sudo apt-get install git and got this: the following packages installed: git-man liberror-perl suggested packages: git-daemon-run git-daemon-sysvinit git-doc git-el git-email git-gui gitk gitweb git-arch git-bzr git-cvs git-svn following new packages installed: git git-man liberror-perl 0 upgraded, 3 newly installed, 0 remove , 258 not upgraded. want continue [y/n]? i gave go ahead , prompted me this: warning: following packages cannot authenticated! liberror-perl git-man git install these packages without verification [y/n]? if type "n", exits saying "e: packages not authenticated". if type "y", gives me instead: err http://br.archive.ubuntu.com/ubuntu/ saucy/

ubuntu server ver. 16.04 using intel centrino 6205 wireless card. card connected without fault during installation , worked perfectly. can't connect after booting server, unable work. have put of commands /etc/network/interfaces, card not connect. know correct parameters , precise procedure set card? btw - have tried of copious suggestions elsewhere in community threads...help...help...thanks... ok, solved problem. here needed: install aptitude sudo apt-get install aptitude install wpa_supplement ***** note "_" not required in statement below sudo aptitude install wpasupplement read , understand , use parameters , follow instructions follows: https://wiki.debian.org/wifi/howtouse#wpa_supplicant modify /etc/network/interfaces: comment out hardwired ethernet device modify /etc/network/interfaces adding auto " characters iface < wireless device above> inet static|dhcp wpa_ssid wpa_psk < access point password> ***** other parameters ne

https://wiki.ubuntu.com/kernelteam/gitkernelbuild i followed compile linux kernel 4.9/4.8 in ubuntu 14.04.1,i successed in virtual machine before , knew how worked.but when changed platform met problem this. cc [m] drivers/video/fbdev/vga16fb.o ld [m] drivers/video/fbdev/via/viafb.o ld drivers/video/fbdev/built-in.o ld [m] drivers/usb/wusbcore/wusb-wa.o ld drivers/usb/built-in.o ld drivers/net/ethernet/built-in.o ld drivers/net/built-in.o ld drivers/video/built-in.o ld drivers/built-in.o make[1]: *** [deb-pkg] error 2 make: *** [deb-pkg] error 2 i tried many times,such installing dpkg-dev didn't work. need help,thx.

i trying boot ubuntu on computer. when boot ubuntu, boots black screen. how can fix this? table of contents: if trying install ubuntu if have dual boot system if update or else caused problem if trying install ubuntu 1. ensuring cd/dvd or usb flash drive burned/written correctly , not damaged: how md5 test ubuntu isos. see also: where find checksums of ubuntu iso images? or md5 hash ubuntu .iso (14.04 through 17.04) check out these steps see how check cd once boot make sure it's ready go. verify integrity of burned cd/dvd or written usb flash drive (this checks it's accessible computer on wish install). 2. black/purple screen when try boot livecd the ubuntu installer's startup portion incompatible graphics cards. fixing , getting ubuntu desktop try or install can surprisingly easy fix: nomodeset parameter. see if works you: boot desktop live cd , press ↓ key when see below: press enter , select english: press f6, use ← ↑

i'm absolutely new linux. know how install ubuntu alongside pre-installed windows 8+ os. should wubi, or through live usb/dvd? what steps need take correctly install ubuntu? if using ubuntu 16.04+, many issues compatibility solved. still, depending on version using , hardware / model have, might need or of steps provided in answer. if reading in august 2017+, can ubuntu 17.04 have installed on over 40+ laptops uefi, ranging lenovo, dell, hp, sony, acer , toshiba models 2016 , up, , have had no issues @ installing ubuntu following steps in installer. basic steps mean: insert ubuntu usb installer select install ubuntu (install ubuntu alongside windows) select wireless card & upgrade 3rd party software while installing ubuntu finish installation , see ubuntu install without issue windows or ubuntu. now, not 100% full proof verification. mentioning impressed fact out of 43 total laptops, 43 did not have issues whatsoever on end. still, if have issue, reaso