Discuss September 2007

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265 participants
310 discussions

strange chgrp behavior
by Tomas Ruprich 18 Sep '07

18 Sep '07

Greetings, i had a following problem, which on one side i have already solved, but on other side i don't thing it should behave this way and wish somebody to tell if it is feature or bug ;-) [root@machine home]# chown user user/ [root@machine home]# ls -ld /home/user drwxr-xr-x 66 user staff 4096 /home/user [root@machine home]# chgrp -R staff user/ [root@machine home]# ls -ld user/ drwxr-xr-x 66 root staff 4096 user/ ^^^^^^ I've been working on it hole afternoon, playing with user permissions, moving home directories to others, debugging selinux and other things, but at last, it was caused by [root@machine home]# ls -la user/.openoffice/user/work lrwxrwxrwx 1 root root 13 Aug 28 14:35 user/.openoffice/user/work -> /home/user When i remove this symlink, everything works fine. I tried this on CentOS 4.4 and 4.5 with coreutils-5.2.1-31.4 and coreutils-5.2.1-31.6 and both are doing this. CentOS 5 with coreutils-5.97-12.1.el5 is already fine. I've been searching through coreutils gnu.org archives, but found nothing (maybe i'm not so experienced seeker ;-)) Thanks ------------------------------------------------------------------------------- Tomáš Ruprich ruprich(a)uikt.mendelu.cz DCD IICT MUAF Brno tel.: +420 545 132 885, +420 602 127 744 -------------------------------------------------------------------------------

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Installation troubles
by Chuck Campbell 17 Sep '07

17 Sep '07

I have a new machine I'm trying to install Centos 5.0 on and I'm not getting very far. The system is 2 dual core xeons (5160, 3.0 GHZ) w/ 8GB ram. It has two 320 GB disks on the motherboard controller (Supermicro X7DAE+), and 8 750 GB disks on a 3ware 9650SE-8ml, pcie (x4) controller card. The 8 disks are set up as two raid 5 volumes (4 disks each). There is a scsi card in the machine w/ nothing attached to it. The graphics card is na NVIDIA Quadro FX 1500 (pci express x16). The intent is to install the OS onto the 2-320GB drives on the motherboard controller (preferrably in a raid 1 configuration). The other disks are for our data requirements. 1)I used bit torrent (azureus on windows) to download the dvd iso for Centos 5.0, and it completed without any errors. I believe it does the checksumming verification automatically. I also ran sha1sum against the image, and it came out fine. 2)I burned the image to a dvd using roxio. No errors. When I couldn't get down the road, I burned another copy with no errors. 3)During the install, I verified the media with no errors for both of the disks. 4)I downloaded the driver for this OS and raid card from AMCC-3ware site and made a driver floppy. 5)I booted the dvd and ran "linux dd" to do the install. Should the graphical installer work on an nvidia quadro fx1500 graphics card? At the present it doesn't appear to work for me, I get hash all over the screen, once X starts. 6)I booted the dvd again and ran "linux text dd". I verified my dvd media without problems, and it reads the driver floppy and loads the 3w-9xxx driver. It asks questions about lang, kbd and timezone. 7)For partitions, I selected custom, created a /boot, /, swap and /home on the first 320 GB disk (it turns out to be sdc, with sda and sdb being the big raid volumes). After the grub section (I told it to put grub on the /boot partition) the screen is blue, and it just sis without any further response (I left it over night, so it should have finished). 8)If I press alt-f3, the last thing I see is: 13:18:16 INFO : Moving (1) to step reposetup 9)If I press alt-f4, the last thing I see is: <5>SQUASHFS error : sb_bread failed reading block 0x6acc <5>SQUASHFS error : unable to read page, block 1aaa0d9, size 9154 8)I'm at a loss as to what to try next, or how to find out what is wrong. thanks in advance for any and all help, -chuck By the Way, a knoppix 3.8 live cd will boot and run fine on the hardware.

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nVdia C15G chipset and GeForce 6100 on board graphix controller
by Chris Geldenhuis 17 Sep '07

17 Sep '07

Hi, Apologies for the long post - but I'm being driven crazy by this problem. A while ago I built a new server that is intended to serve as a Xen server running multiple DomU systems used a test environments for systems that I am working on. The host Xen system will be CentOS 5 as will some of the DomU systems. The systems will all be hardware virtualized. The motherboard uses the nVidia C15G chipset and the onboard graphix controller is recognised as a GeForce 6100. I am having problems getting the Video and mouse to work properly with CentOS 5 - both with as set of CD's downloaded when CentOS 5 was first released and with a DVD obtained from one of the local distro shops. The symptoms are that the Video is run in 800X600 mode and the mouse pointer works while the system is booting and while I am logging in to a GUI session. Once the login process has completed the mouse pointer disappears (is not visible at all). The mouse does however work as you can see changes to the Icons and menus on screen when moving the mouse around (blindly). The same situation obtains when running the system with FC7 installed. However when I boot the system using a Knoppix 5.1.1 live disk the Video resolution is 1024X768 and the mouse works properly. I attach the output of lspci and lsmod from both CentOS and Knoppix as well as the X86 Config file from Knoppix. Could someone please advise me on how to get CentOs to give the same results with the video and mouse as Knoppix. TIA ChrisG Module Size Used by ip6table_filter 36033 1 ip6_tables 50049 1 ip6table_filter ip_conntrack_ftp 41489 0 ip_conntrack_netbios_ns 36033 0 xt_state 35265 3 ip_conntrack 91365 3 ip_conntrack_ftp,ip_conntrack_netbios_ns,xt_state nfnetlink 40457 1 ip_conntrack iptable_filter 36161 1 ip_tables 55329 1 iptable_filter bridge 91889 0 netloop 39873 0 netbk 128897 0 [permanent] blktap 417765 2 [permanent] blkbk 52857 0 [permanent] autofs4 56393 2 hidp 83649 2 rfcomm 104809 0 l2cap 89281 10 hidp,rfcomm bluetooth 118725 5 hidp,rfcomm,l2cap sunrpc 195593 1 ipt_REJECT 38849 1 ip6t_REJECT 38849 1 xt_tcpudp 36417 12 x_tables 50249 6 ip6_tables,xt_state,ip_tables,ipt_REJECT,ip6t_REJECT,xt_tcpudp dm_mirror 61121 0 dm_mod 93969 1 dm_mirror video 51273 0 sbs 49921 0 i2c_ec 38593 1 sbs button 40545 0 battery 43849 0 asus_acpi 50917 0 ac 38729 0 ipv6 411169 17 ip6t_REJECT lp 47120 0 sg 69609 0 snd_hda_intel 52189 1 floppy 92905 0 snd_hda_codec 215233 1 snd_hda_intel snd_seq_dummy 37061 0 snd_seq_oss 65601 0 snd_seq_midi_event 41025 1 snd_seq_oss snd_seq 88033 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event snd_seq_device 41813 3 snd_seq_dummy,snd_seq_oss,snd_seq i2c_nforce2 40897 0 i2c_core 56129 2 i2c_ec,i2c_nforce2 ide_cd 73441 0 snd_pcm_oss 77537 0 snd_mixer_oss 50113 1 snd_pcm_oss forcedeth 73029 0 serial_core 55233 0 parport_pc 62313 1 snd_pcm 116809 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss pcspkr 36289 0 natsemi 62113 0 parport 73293 2 lp,parport_pc snd_timer 57673 2 snd_seq,snd_pcm snd 95209 11 snd_hda_intel,snd_hda_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 43873 1 snd snd_page_alloc 43345 2 snd_hda_intel,snd_pcm k8_edac 49537 0 edac_mc 58657 1 k8_edac shpchp 70509 0 serio_raw 40517 0 cdrom 68841 1 ide_cd sata_nv 45765 3 libata 139113 1 sata_nv sd_mod 54081 4 scsi_mod 184057 3 sg,libata,sd_mod ext3 166353 3 jbd 93617 1 ext3 ehci_hcd 65357 0 ohci_hcd 54621 0 uhci_hcd 57561 0 00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:04.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:05.0 VGA compatible controller: nVidia Corporation C51G [GeForce 6100] (rev a2) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.2 RAM memory: nVidia Corporation MCP51 Memory Controller 0 (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:0f.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:06.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller 01:0e.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link) Module Size Used by ipv6 279616 12 sworks_agp 13472 0 nvidia_agp 12316 0 efficeon_agp 12192 0 amd64_agp 16772 0 ali_agp 11136 0 af_packet 29960 0 dm_mod 60440 0 agpgart 36044 5 sworks_agp,nvidia_agp,efficeon_agp,amd64_agp,ali_agp snd_hda_intel 23960 1 snd_hda_codec 161152 1 snd_hda_intel snd_pcm_oss 45728 0 snd_mixer_oss 20224 1 snd_pcm_oss snd_pcm 80004 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss snd_timer 26500 1 snd_pcm natsemi 31584 0 snd 55396 8 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer soundcore 12512 1 snd parport_pc 43492 0 parport 40008 1 parport_pc snd_page_alloc 13960 2 snd_hda_intel,snd_pcm forcedeth 45188 0 8250_pnp 13440 0 8250 28164 1 8250_pnp serial_core 25216 1 8250 k8temp 9728 0 hwmon 7556 1 k8temp i2c_nforce2 11520 0 eth1394 23556 0 tsdev 11840 0 evdev 14208 1 pcmcia 41132 0 firmware_class 14208 1 pcmcia yenta_socket 30220 0 rsrc_nonstatic 17408 1 yenta_socket pcmcia_core 43800 3 pcmcia,yenta_socket,rsrc_nonstatic cpufreq_ondemand 12300 1 powernow_k8 18848 1 speedstep_lib 8836 0 freq_table 9088 2 cpufreq_ondemand,powernow_k8 video 19460 0 thermal 17928 0 sbs 18856 0 processor 36200 2 powernow_k8,thermal i2c_ec 9216 1 sbs i2c_core 25984 2 i2c_nforce2,i2c_ec fan 8836 0 container 8576 0 button 10768 0 battery 14084 0 ac 9348 0 aufs 88244 1 cloop 18208 2 sbp2 28292 0 ohci1394 38960 0 ieee1394 300760 3 eth1394,sbp2,ohci1394 usb_storage 73408 1 usbhid 56928 0 ff_memless 9992 1 usbhid libusual 20624 1 usb_storage ohci_hcd 24580 0 uhci_hcd 27788 0 ehci_hcd 35848 0 usbcore 135812 7 usb_storage,usbhid,libusual,ohci_hcd,uhci_hcd,ehci_hcd 00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2) 00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2) 00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2) 00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2) 00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2) 00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2) 00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2) 00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:04.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1) 00:05.0 VGA compatible controller: nVidia Corporation C51G [GeForce 6100] (rev a2) 00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2) 00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3) 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3) 00:0a.2 RAM memory: nVidia Corporation MCP51 Memory Controller 0 (rev a3) 00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3) 00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1) 00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:0f.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1) 00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2) 00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:06.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller 01:0e.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link) Section "Files" RgbPath "/usr/X11R6/lib/X11/rgb" FontPath "/usr/X11R6/lib/X11/fonts/misc:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/75dpi:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/100dpi:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/Speedo" FontPath "/usr/X11R6/lib/X11/fonts/PEX" # Additional fonts: Locale, Gimp, TTF... FontPath "/usr/X11R6/lib/X11/fonts/cyrillic" # FontPath "/usr/X11R6/lib/X11/fonts/latin2/75dpi" # FontPath "/usr/X11R6/lib/X11/fonts/latin2/100dpi" # True type and type1 fonts are also handled via xftlib, see /etc/X11/XftConfig! FontPath "/usr/X11R6/lib/X11/fonts/Type1" FontPath "/usr/share/fonts/truetype" FontPath "/usr/share/fonts/latex-ttf-fonts" EndSection Section "ServerFlags" EndSection Section "Keyboard" Protocol "Standard" AutoRepeat 500 5 LeftAlt Meta RightAlt Meta ScrollLock Compose RightCtl Control # This is just the default keymap for X. # May be changed with the KDE international keyboard tool. XkbModel "pc105" XkbLayout "de" XkbVariant "nodeadkeys" # XkbOptions "ctrl:swapcaps" # XkbKeycodes "xfree86" # XkbTypes "default" # XkbCompat "default" # XkbSymbols "us(pc101)" # XkbGeometry "pc" # XkbRules "xfree86" # XkbModel "pc101" # XkbLayout "us" EndSection Section "Pointer" Protocol "@@PROTOCOL@@" Device "/dev/mouse" Emulate3Buttons Emulate3Timeout 70 EndSection # Auto-generated by mkxf86config @@MONITOR@@ Section "Device" Identifier "My Video Card" VendorName "Unknown" BoardName "Unknown" # TextClockFreq 22.175 EndSection Section "Device" Identifier "fbdev" VendorName "Unknown" BoardName "Unknown" EndSection # Standard Server Section "Screen" Driver "svga" Device "My Video Card" Monitor "Monitor0" Subsection "Display" @@MODES@@ ViewPort 0 0 EndSubsection EndSection # Accel. Server(s) Section "Screen" Driver "accel" Device "My Video Card" Monitor "Monitor0" Subsection "Display" @@MODES@@ ViewPort 0 0 EndSubsection EndSection # Fallback Section "Screen" Driver "vga16" Device "My Video Card" Monitor "Monitor0" Subsection "Display" @@MODES@@ EndSubsection EndSection Section "Screen" Driver "fbdev" Device "fbdev" Monitor "Monitor0" SubSection "Display" Depth 32 Modes "default" EndSubSection SubSection "Display" Depth 24 Modes "default" EndSubSection SubSection "Display" Depth 16 Modes "default" EndSubSection SubSection "Display" Depth 15 Modes "default" EndSubSection SubSection "Display" Depth 8 Modes "default" EndSubSection EndSection

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request for hosting ( London, UK )
by Karanbir Singh 17 Sep '07

17 Sep '07

Hi Chaps, A couple of Sun Netra t105 have been donated to the CentOS Project. The machines are located in London and I was wondering if anyone in the area might be able to host these machines for us ? They come with 19" rack rails. We would need access to some - but not a whole lot of - bandwidth. We plan on using these machines in developer roles, for code testing and sandbox builds. So, while we wont be using a lot of b/w - the machines being on a fast'ish link would still be appreciated. Regards, -- Karanbir Singh : http://www.karan.org/ : 2522219@icq

6 10

Language interfaces and X.Org sessions per user
by Ioannis Vranos 16 Sep '07

16 Sep '07

Q1: Is it possible different users to have different language interfaces (menus etc) on the same machine under X.Org (GNOME or KDE)? Q2: Is it possible to have more than one X.Org sessions running on the same machine, so as different users to log in at the same time, and switch between users X.Org sessions (one using GNOME, other using XFCE) by using the usual Ctrl-Alt-Fx keys? Thanks in advance.

3 8

Automatic FTP problem in cron
by umair shakil 16 Sep '07

16 Sep '07

Dear Concerns, I have backup script which TAR the data, makes one copy on local hardisk and then FTP to another machine. Last few days i m facing problem with it. The cron job only makes the copy automatically on local disk but doesnot automatically FTP to another machine. I ran the script manually, the script runs successfully. For trouble shooting i displayed the output in some file and shown this error: Cron Entry is : */5 * * * * /opt/bin/ftp.sh 2> /tmp/error_log "/opt/bin/ftp.sh: line 3: ftp: command not found" Please help me out of this problem. Regards, Umair Shakil Askari Bank Limited

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Very strange problem i have faced in my 2 years carrier
by umair shakil 16 Sep '07

16 Sep '07

Dear Concerns, I would like to share a very strange problem. I am from Pakistan/Islamabad. Last month i was on trainning from Askari Bank Limited (Juniper). Here in Askari i m running NMS--> MRTGs using CentOs 4.4. On trainning i recieved a call from collique saying "when i "su -l" NMS says "root user doesnot exist". and also MRTGs not working. well i was amazed how was it possible. In the Evening i came back to office. I boot the machine in single user mode and type the command; less /etc/passwd here when i found that user root existed, but the only thing that was amazing is; the spelling of root was changed from "root" to "R00t". i changed to "root" and every thing worked. I want to ask, what is this, this doesnot seem a garbage value or nor corruption of passwd file. only showing someone changes this. Here we have bank private network, only two people have access for it me and another guy. what are your opinions?????? Please also share your strange experience. Regards, Umair Shakil Askari bank Limited

8 15

Software Raid 6
by Juan C. Valido 16 Sep '07

16 Sep '07

How slow and how reliable is software raid 6 on CentOS 5. The system I'm going to use is A socket 939 dual core Athlon, 4 gigs of ram and a 3ware 7506-8 controller. Its mostly going to be used for storage (Movies, MP3s etc.). Thanks.

2 3

vsftp and nonpriv_user option question
by Blackburn, Marvin 16 Sep '07

16 Sep '07

thhis didnt go through completely the first time. I am a bit confused as to how this works. I created a local unpriveleged user (with /bin/nologin shell). i uncommented the line containing nopriv_user=ftpsecure and restarted vsftp. I am confused as to what is supposed to happen. Shuld the daemon /usr/sbin/vsftpd be run as root or should it be ftpsecure? Or is the account only used to login to transfer files? Any help would be appreciated. _____________________________________ "He's no failure. He's not dead yet." William Lloyd George

3 4

Cron set_loginuid failed opening loginuid errors.
by Steven Haigh 16 Sep '07

16 Sep '07

Hi all, I've had this error rear it's ugly head again and I'm not exactly sure why. The output in /var/log/message is: crond[14764]: pam_loginuid(crond:session): set_loginuid failed opening loginuid crond[14765]: pam_loginuid(crond:session): set_loginuid failed opening loginuid crond[14811]: pam_loginuid(crond:session): set_loginuid failed opening loginuid crond[14842]: pam_loginuid(crond:session): set_loginuid failed opening loginuid This seems to happen every 5 minutes. Probably caused by the cacti cron jobs running. It looks to have started after the last krb5 updates - however this could be coincidence. $ cat crond # # The PAM configuration file for the cron daemon # # auth sufficient pam_rootok.so auth required pam_env.so auth include system-auth account required pam_access.so account include system-auth #session required pam_loginuid.so session include system-auth I commended out pam_loginuid.so - as I remember reading somewhere that this was the cause of this issue, however it hasn't made a difference this time... Does anyone have any insight in this? -- Steven Haigh Email: netwiz(a)crc.id.au Web: http://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897

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