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Wake for Network Access Apache servr in OS X 10.8, followup

- by Gary

Sorry, I can't seem to post this response within the same thread. Thank you both (Zoredache and Gordon) for your answer. But the fix seems temporary. I entered the command you suggested, and it seemed to work: ...smith$ Registering Service ApacheNoDoz._http._tcp.local port 80 DATE: ---Fri 14 Sep 2012--- 12:04:15.813 ...STARTING... 12:04:16.566 Got a reply for service ApacheNoDoz._http._tcp.local.: Name now registered and active So, I checked for it on my G5: Browsing for _http._tcp Timestamp.....A/R Flags if Domain......Service Type...Instance Name (lots of Bonjour printers omitted)... 12:07:38.370..Add.....2..4 local.......... _http._tcp.........ApacheNoDoz 12:07:45.921..Rmv.....0..4 local..........._http._tcp.........ApacheNoDoz So, it was running at 12:07:38, at which time the host was asleep. But, shortly after, the activity seems to have been removed. I don't know why. Does this mean that I can never let the cpu sleep, or is there something else I have to set? Thanks, again.

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Freebsd jail for an small company - checklist - what shouldn't forget

- by cajwine

Looking for an checklist for an "small company freebsd/jail server". Having pretty common starting point: FreeBSD jail (remote/headless) for the company: public web, email, ftp server, and private (maybe in the future partially public) wiki (foswiki) 4 physical persons, (6 email addresses) + one admin - others will never use ssh) have already done usual hardening on the host side (like pf, sshguard etc). my major components are: dovecot, exim, apache22, proftpd, perl5.14. Looking for an checklist, what I shouldn't forget. My plan: openssl self-signed certificates for exim, dovecot and proftpd (wildcard keys) openssl self-signed certificate for apache (later will go for "trusted-signed" key) My questions are: is is an "good practice" having one pair of wildcard SSL-certificates for many programs? (exim, dovecot, proftpd) - or should I generate one key for each service? should I add all 4 persons as standard (unix) users, or I should go with virtual users? Asking because: have only small count of users, and it is more simple to configure everything (exim, dovecot) for local users ($HOME/Maildir), plus ability to set $HOME/.forward/vacation and etc. is here some (special) things what I should consider? (e.g. maybe, in the future we want setup our own webmail - will make this any difference?) any other recommendation? Thank you, hoping that this question fit into the http://serverfault.com/faq under the: Server and Business Workstation operating systems, hardware, software Operations, maintenance, and monitoring Looking for an checklist, but please explain why you're recommending it. See Good Subjective, Bad Subjective. related: What's your suggested mail server configuration for a FreeBSD server?

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Ubuntu 9.10 RSA authentication: ssh fails, filezilla runs fine

- by MariusPontmercy

This is quite a mistery for me. I usually use passwordless RSA authentication to login into my remote *nix servers with ssh and sftp. Never had any problem until now. I cannot connect to an Ubuntu 9.10 machine: user@myclient$ ssh -i .ssh/Ganymede_key [email protected] [...] debug1: Host 'ganymede.server.com' is known and matches the RSA host key. debug1: Found key in /home/user/.ssh/known_hosts:14 debug2: bits set: 494/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: .ssh/Ganymede_key (0xb96a0ef8) debug2: key: .ssh/Ganymede_key ((nil)) debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Offering public key: .ssh/Ganymede_key debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Trying private key: .ssh/Ganymede_key debug1: read PEM private key done: type RSA debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password,keyboard-interactive debug2: we did not send a packet, disable method debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug2: input_userauth_info_req debug2: input_userauth_info_req: num_prompts 1 Then it falls back to password authentication. If I disable password authentication on the remote machine my connection attempt just fails with a "Permission denied (publickey)." state. Same thing for sftp from command line. The "funny" thing is that the exact same RSA key works like a charm with a Filezilla sftp session instead: 12:08:00 Trace: Offered public key from "/home/user/.filezilla/keys/Ganymede_key" 12:08:00 Trace: Offer of public key accepted, trying to authenticate using it. 12:08:01 Trace: Access granted 12:08:01 Trace: Opened channel for session 12:08:01 Trace: Started a shell/command 12:08:01 Status: Connected to ganymede.server.com 12:08:02 Trace: CSftpControlSocket::ConnectParseResponse() 12:08:02 Trace: CSftpControlSocket::ResetOperation(0) 12:08:02 Trace: CControlSocket::ResetOperation(0) 12:08:02 Status: Retrieving directory listing... 12:08:02 Trace: CSftpControlSocket::SendNextCommand() 12:08:02 Trace: CSftpControlSocket::ChangeDirSend() 12:08:02 Command: pwd 12:08:02 Response: Current directory is: "/root" 12:08:02 Trace: CSftpControlSocket::ResetOperation(0) 12:08:02 Trace: CControlSocket::ResetOperation(0) 12:08:02 Trace: CSftpControlSocket::ParseSubcommandResult(0) 12:08:02 Trace: CSftpControlSocket::ListSubcommandResult() 12:08:02 Trace: CSftpControlSocket::ResetOperation(0) 12:08:02 Trace: CControlSocket::ResetOperation(0) 12:08:02 Status: Directory listing successful Any thoughts? M

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High fan speed with no reason

- by Klaus

For a few weeks, the fans of my Lenovo B590 laptop, running on Xubuntu 14, turn to high speed a few minutes after it is turned on. The fans won't speed down until I turn the computer off. This is quite strange, since This didn't happen before The temperatures are quite low (are they ?) $sensors Adapter: Virtual device temp1: +36.0°C (crit = +88.0°C) temp2: +30.0°C (crit = +126.0°C) coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +37.0°C (high = +72.0°C, crit = +90.0°C) Core 0: +34.0°C (high = +72.0°C, crit = +90.0°C) Core 1: +31.0°C (high = +72.0°C, crit = +90.0°C) thinkpad-isa-0000 Adapter: ISA adapter fan1: 0 RPM pkg-temp-0-virtual-0 Adapter: Virtual device temp1: +37.0°C $sudo hddtemp /dev/sda /dev/sda: ST500LT012-9WS142: 33°C The computer is under low load: top - 08:30:15 up 16 min, 2 users, load average: 0.28, 0.23, 0.23 Tasks: 197 total, 1 running, 196 sleeping, 0 stopped, 0 zombie %Cpu(s): 0.8 us, 0.5 sy, 0.0 ni, 98.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem: 3607944 total, 1973956 used, 1633988 free, 99660 buffers KiB Swap: 3744764 total, 0 used, 3744764 free. 789936 cached Mem The BIOS is up to date (and there are no fan settings in it) The fan is clean and dust-free Why would the BIOS turn the fans to high speed where there seem to be no reason for that ? It seems that we cannot control the fan manually with this model, so I guess the only solution is to understand why this happens.

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Bad performance with Linux software RAID5 and LUKS encryption

- by Philipp Wendler

I have set up a Linux software RAID5 on three hard drives and want to encrypt it with cryptsetup/LUKS. My tests showed that the encryption leads to a massive performance decrease that I cannot explain. The RAID5 is able to write 187 MB/s [1] without encryption. With encryption on top of it, write speed is down to about 40 MB/s. The RAID has a chunk size of 512K and a write intent bitmap. I used -c aes-xts-plain -s 512 --align-payload=2048 as the parameters for cryptsetup luksFormat, so the payload should be aligned to 2048 blocks of 512 bytes (i.e., 1MB). cryptsetup luksDump shows a payload offset of 4096. So I think the alignment is correct and fits to the RAID chunk size. The CPU is not the bottleneck, as it has hardware support for AES (aesni_intel). If I write on another drive (an SSD with LVM) that is also encrypted, I do have a write speed of 150 MB/s. top shows that the CPU usage is indeed very low, only the RAID5 xor takes 14%. I also tried putting a filesystem (ext4) directly on the unencrypted RAID so see if the layering is problem. The filesystem decreases the performance a little bit as expected, but by far not that much (write speed varying, but 100 MB/s). Summary: Disks + RAID5: good Disks + RAID5 + ext4: good Disks + RAID5 + encryption: bad SSD + encryption + LVM + ext4: good The read performance is not affected by the encryption, it is 207 MB/s without and 205 MB/s with encryption (also showing that CPU power is not the problem). What can I do to improve the write performance of the encrypted RAID? [1] All speed measurements were done with several runs of dd if=/dev/zero of=DEV bs=100M count=100 (i.e., writing 10G in blocks of 100M). Edit: If this helps: I'm using Ubuntu 11.04 64bit with Linux 2.6.38. Edit2: The performance stays approximately the same if I pass a block size of 4KB, 1MB or 10MB to dd.

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Under what conditions will sendmail try to immediately resend a message instead of waiting for the standard requeue interval?

- by Mike B

CentOS 5.8 | Sendmail 8.14.4 I used to think that if SendMail experienced a temporary (400-class) error during delivery, it would place the message in a deferred queue (e.g. /var/spool/mqueue) and retry an hour later. For the most part, that appears to be the case. But every now and then, I'll notice log entries like this (email/domains renamed to protect the innocent :-) ) : Dec 5 01:43:03 foobox-out sendmail [11078]: qBE3l7js123022: to=<[email protected]>, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=124588, relay=exbox.foo.com. [10.10.10.10], dsn=4.0.0, stat=Deferred: 421 4.3.2 The maximum number of concurrent connections has exceeded a limit, closing transmission channel Dec 5 01:53:34 foobox-out sendmail [12763]: qBE3l7js123022: to=<[email protected]>, delay=00:10:31, xdelay=00:00:00, mailer=relay, pri=214588, relay=exbox.foo.com., dsn=4.0.0, stat=Deferred: 452 4.3.1 Insufficient system resources Dec 5 02:53:35 foobox-out sendmail [23255]: qBE3l7js123022: to=<[email protected]>, delay=01:10:32, xdelay=00:00:01, mailer=relay, pri=304588, relay=exbox.foo.com. [10.10.10.10], dsn=2.0.0, stat=Sent (<[email protected]> Queued mail for delivery) Why did Sendmail try again just 10 minutes after the first attempt and then wait another hour before trying again? If this is expected behavior, what scenarios will cause this faster requeue interval to occur?

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Linux usd disk just create sg device

- by MTilsted

I have a Corsair R60 ssd disk which is a disk with both sata and usb connectors. But the usb thing seems to be a bit non-standard, or maybe its just my fedora linux. When I insert the disk using a usb cabel to a running Fedora 14 linux system, a device called /dev/sg3 is added but that is all. No new /dev/sd* device is created so I can't mount the disk. If I look at cat /proc/scsi/sg/device_strs I get ATA Hitachi HTS54321 FB2O HL-DT-ST DVDRAM GSA-T50N RP05 Seagate Desktop 0130 Corsair CSSD-R60GB2 So the disk is there. (The last entry) but my linux will for some reason not see it as a usb hard disk. When I insert other usb disks they work fine. It is only this specific disk which causes problems. I have tried on 3 different computers with the same result. A hint to the problem may be that if I add the disk to a windows system(With usb) the disk is called "A fixed disk" and not a portable disk as expected. The disk works fine with linux If i connect it with the sata cabel, but I would really like to have it working with usb too. (To mount it on computers without sata).

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Glassfish v3 failure when startup. "Cannot allocate memory "

- by Shisoft

It is clear in this Question Fail to start Glassfish 3.1: java.io.IOException: error=12, Cannot allocate memory But in my case,I have a 512M memory Ubuntu 10.04 vps.It seems that I don't need to change any configure.But when start the server,I got this exception VM failed to start: java.io.IOException: Cannot run program "/usr/lib/jvm/java-6-sun-1.6.0.22/bin/java" (in directory "/home/glassfish/glassfish/domains/domain1/config"): java.io.IOException: error=12, Cannot allocate memory So,I set <jvm-options>-Xmx512</jvm-options> to <jvm-options>-Xmx400</jvm-options> The exception remains.What did I do something wrong? result of free -m total used free shared buffers cached Mem: 512 43 468 0 0 0 -/+ buffers/cache: 43 468 Swap: 0 0 0 result of cat /proc/user_beancounters Version: 2.5 uid resource held maxheld barrier limit failcnt 146049: kmemsize 2670652 5385253 51200000 51200000 0 lockedpages 0 8 2048 2048 0 privvmpages 11134 134522 131200 262200 4 shmpages 648 1352 128000 128000 0 dummy 0 0 0 0 0 numproc 12 73 500 500 0 physpages 6519 28162 0 200000000 0 vmguarpages 0 0 512000 512000 0 oomguarpages 6527 28169 512000 512000 0 numtcpsock 4 14 4096 4096 0 numflock 0 5 2048 2048 0 numpty 1 2 32 32 0 numsiginfo 0 3 1024 1024 0 tcpsndbuf 159600 265744 20480000 20480000 0 tcprcvbuf 65536 3590352 20480000 20480000 0 othersockbuf 44232 90640 20480000 20480000 0 dgramrcvbuf 0 12848 10240000 10240000 0 numothersock 22 31 2048 2048 0 dcachesize 0 0 10240000 10240000 0 numfile 1002 1474 50000 50000 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 numiptent 24 24 2048 2048 0 Thanks

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3 simple questions about file permissions

- by Camran

1- Wonder, is this a good setup of permissions in the /var directory? drwxr-xr-x 2 root root 4096 2010-05-30 03:34 backups drwxr-xr-x 7 root root 4096 2010-05-29 17:55 cache drwxr-xr-x 29 root root 4096 2010-05-29 17:55 lib drwxrwsr-x 2 root staff 4096 2009-07-14 04:36 local drwxrwxrwt 3 root root 60 2010-06-02 03:34 lock drwxr-xr-x 9 root root 4096 2010-06-02 03:34 log drwxrwsr-x 2 root man 4096 2009-09-20 20:36 mail drwxr-xr-x 2 root root 4096 2009-09-20 20:36 opt drwxrwxrwt 12 root root 420 2010-06-02 12:12 run drwxr-xr-x 4 root root 4096 2009-09-20 20:37 spool drwxrwxrwt 2 root root 4096 2009-07-14 04:36 tmp drwxr-xr-x 14 user root 4096 2010-05-30 22:21 www 2- Could you give me a brief explanation of the columns above? First one is which permissions they have. Second is a nr. Third and fourth says "root root" for example. fifth is another nr (4096 for example). and the others are obvious. 3- Could you give me a brief explanation of the folders above? Especially the "lock" and "tmp" folders. Lock contains an apache2 folder which seems empty. Thanks

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Can't mount Linux usd disk. It just create /dev/sg device but no /dev/sd

- by MTilsted

I have a Corsair R60 ssd disk which is a disk with both sata and usb connectors. But the usb thing seems to be a bit non-standard, or maybe its just my fedora linux. When I insert the disk using a usb cabel to a running Fedora 14 linux system, a device called /dev/sg3 is added but that is all. No new /dev/sd* device is created so I can't mount the disk. If I look at cat /proc/scsi/sg/device_strs I get ATA Hitachi HTS54321 FB2O HL-DT-ST DVDRAM GSA-T50N RP05 Seagate Desktop 0130 Corsair CSSD-R60GB2 So the disk is there. (The last entry) but my linux will for some reason not see it as a usb hard disk. When I insert other usb disks they work fine. It is only this specific disk which causes problems. I have tried on 3 different computers with the same result. A hint to the problem may be that if I add the disk to a windows system(With usb) the disk is called "A fixed disk" and not a portable disk as expected. The disk works fine with linux If i connect it with the sata cabel, but I would really like to have it working with usb too. (To mount it on computers without sata).

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copy large LVM volume(14TB) from one server to another

- by bruce

recently,I have to copy a very large LVM volume()rom server A to server B. Below is the filesystem of server A and server B - server A [root@AVDVD-Filer ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_avdvdfiler-lv_root 16T 14T 1.5T 91% / tmpfs 3.0G 0 3.0G 0% /dev/shm /dev/cciss/c0d0p1 194M 23M 162M 13% /boot /dev/mapper/vg_avdvdfiler-test 2.3T 201M 2.1T 1% /test /dev/sr0 3.3G 3.3G 0 100% /mnt server B [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-LogVol00 20G 2.5G 16G 14% / tmpfs 3.0G 0 3.0G 0% /dev/shm /dev/cciss/c0d0p1 194M 23M 162M 13% /boot /dev/mapper/VolGroup00-LogVol00 16T 133M 15T 1% /xiangao/lv1 /dev/mapper/VolGroup00-LogVol01 4.7T 190M 4.5T 1% /xiangao/lv2 I want to copy LVM volume /dev/mapper/vg_avdvdfiler-lv_root on server A to LVM volume /dev/mapper/VolGroup00-LogVol00 on server B . The server A and server B is in the same IP segment. IN the LVM volume on server A , there is all average 500M avi wmv mp4 etc. I tried mount /dev/mapper/vg_avdvdfiler-lv_root on server A to server B through NFS , then use cp command copy. It is clear I faild . Because the LVM volume is too big , I do not have good idea . I hope a good solution here. I'm a chinese, my english is very pool. sorry thanks everyone!

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On linux, what does it mean when a directory has size 0 instead of 4096?

- by kdt

Here's a strange thing I haven't seen before -- a directory whose size is reported by ls as 0 instead of 4096, and I can't create any files within it. # ls -ld lib home drwxr-xr-x. 2 root root 0 Feb 7 03:10 home <-- it has zero size dr-xr-xr-x. 11 root root 4096 Feb 4 09:28 lib # touch home/foo touch: cannot touch `home/foo': No such file or directory <-- and I can't create files in it # rm home rm: cannot remove `home': Is a directory <-- look, it really is a dir So what does it mean for a directory to have size 0 instead of 4096? Filesystem is ext4 on fedora core 14. The output of mount is: /dev/mapper/vg_dev-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0") /dev/vda1 on /boot type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) Output of du -s /home: 0 /home Output of stat /home: File: `/home' Size: 0 Blocks: 0 IO Block: 1024 directory Device: 15h/21d Inode: 34913 Links: 2 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2011-02-07 03:45:46.188995765 -0800 Modify: 2011-02-07 03:11:59.980995019 -0800 Change: 2011-02-06 07:58:45.874995002 -0800

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esx5 debian VM vlan setup

- by Kstro21

i have a server with ESX5, have a switch with about 20 vlans, this is how setup the trunk port interface GigabitEthernet0/1/1 description ToOper port link-type trunk undo port trunk allow-pass vlan 1 port trunk allow-pass vlan 2 to 14 stp disable ntdp enable ndp enable bpdu enable then, i created a standar switch(sw1) using the vSphere Client, the VLAN ID is set to All (4095), i also created a VM with Debian 6, with a NIC connected to sw1, now, i want to configure this NIC for a selected group of vlans auto vlan10 iface vlan10 inet static address 11.10.1.0 netmask 255.255.255.224 mtu 1500 vlan_raw_device eth0 auto vlan14 iface vlan14 inet static address 11.10.1.65 netmask 255.255.255.248 mtu 1500 vlan_raw_device eth0 so, when i restart the network using /etc/init.d/networking restart, i got this error Reconfiguring network interfaces...SIOCSIFADDR: No such device vlan14: ERROR while getting interface flags: No such device SIOCSIFNETMASK: No such device SIOCSIFBRDADDR: No such device vlan14: ERROR while getting interface flags: No such device SIOCSIFMTU: No such device vlan14: ERROR while getting interface flags: No such device Failed to bring up vlan14. done. this is just part of the error, so, my questions is: is this possible?, i mean, what i'm trying to achieve using ESX Virtual Machines, VLANS, etc is this a Debian problem? can be solved? i've read about a file named z25_persistent-net.rules in Debian but it doesn't exist in my installation. in the In the vSphere Networking for ESX5 guide, you can read: If you enter 0 or leave the option blank, the port group can see only untagged (non-VLAN) traffic. If you enter 4095, the port group can see traffic on any VLAN while leaving the VLAN tags intact. So, in theory, it should work, right? Hope you can help me up with this one Thanks

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convert a pdf/djvu file to png's under Linux how?

- by user62367

Imagemagick doesn't work (Fedora 14) on one PDF file: $ convert -density 300 INPUT.PDF out.png Error: /ioerror in --showpage-- Operand stack: 1 true Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1878 1 3 %oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop --nostringval-- --nostringval-- 141 1 319 --nostringval-- %for_pos_int_continue --nostringval-- --nostringval-- 1761 0 9 %oparray_pop --nostringval-- --nostringval-- Dictionary stack: --dict:1157/1684(ro)(G)-- --dict:1/20(G)-- --dict:75/200(L)-- --dict:75/200(L)-- --dict:108/127(ro)(G)-- --dict:288/300(ro)(G)-- --dict:22/25(L)-- --dict:6/8(L)-- --dict:22/40(L)-- Current allocation mode is local Last OS error: 27 GPL Ghostscript 8.71: Unrecoverable error, exit code 1 convert: Postscript delegate failed INPUT.PDF': @ error/pdf.c/ReadPDFImage/645.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ And it doesn't work on a djvu file: $ convert -density 300 INPUT.DJVU out.png convert: no decode delegate for this image format INPUT.DJVU' @ error/constitute.c/ReadImage/532.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ an extra: the output filenames. out-0.png out-1.png ... out-9.png out-10.png out-11.png .. out-123.png out-124.png is there a way to be like this?: out-000.png out-001.png ... out-009.png out-010.png out-011.png .. out-123.png out-124.png because they would be in wrong order: out-0.png out-1.png out-10.png out-11.png out-123.png out-124.png out-9.png thank you :\

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convert a pdf/djvu file to png's under Linux how?

- by user62367

Imagemagick doesn't work (Fedora 14) on one PDF file: $ convert -density 300 INPUT.PDF out.png Error: /ioerror in --showpage-- Operand stack: 1 true Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1878 1 3 %oparray_pop 1877 1 3 %oparray_pop 1861 1 3 %oparray_pop --nostringval-- --nostringval-- 141 1 319 --nostringval-- %for_pos_int_continue --nostringval-- --nostringval-- 1761 0 9 %oparray_pop --nostringval-- --nostringval-- Dictionary stack: --dict:1157/1684(ro)(G)-- --dict:1/20(G)-- --dict:75/200(L)-- --dict:75/200(L)-- --dict:108/127(ro)(G)-- --dict:288/300(ro)(G)-- --dict:22/25(L)-- --dict:6/8(L)-- --dict:22/40(L)-- Current allocation mode is local Last OS error: 27 GPL Ghostscript 8.71: Unrecoverable error, exit code 1 convert: Postscript delegate failed INPUT.PDF': @ error/pdf.c/ReadPDFImage/645.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ And it doesn't work on a djvu file: $ convert -density 300 INPUT.DJVU out.png convert: no decode delegate for this image format INPUT.DJVU' @ error/constitute.c/ReadImage/532.<br> convert: missing an image filenameout.png' @ error/convert.c/ConvertImageCommand/2953. $ an extra: the output filenames. out-0.png out-1.png ... out-9.png out-10.png out-11.png .. out-123.png out-124.png is there a way to be like this?: out-000.png out-001.png ... out-009.png out-010.png out-011.png .. out-123.png out-124.png because they would be in wrong order: out-0.png out-1.png out-10.png out-11.png out-123.png out-124.png out-9.png thank you :\

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SamFS performance problem on file creation

- by Gregor Longariva

I have two samfs filesystems (samfs1 and samfs2), both on the same 6130, both with the same config/watermarks/timeouts etc. creating a file on samfs2 works as it should, on samfs1 not. A little simple script shows up, that every while and then the file creation needs between 11 and 28 seconds: stan 12:32 [scratch]# while ( 1 ) while? echo - while? time echo test file while? time mv file file2 while? echo + while? sleep 1 while? end 0.00u 0.00s 0:00.01 0.0% 0.00u 0.00s 0:00.00 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.03 0.0% + 0.00u 0.00s 0:23.71 0.0% 0.00u 0.00s 0:00.14 0.0% + 0.00u 0.00s 0:00.18 0.0% 0.00u 0.00s 0:00.13 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.05 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.06 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.05 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.05 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.05 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.04 0.0% + 0.00u 0.00s 0:00.04 0.0% 0.00u 0.00s 0:00.05 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.01 0.0% + 0.00u 0.00s 0:26.05 0.0% 0.00u 0.00s 0:00.50 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.06 0.0% + 0.00u 0.00s 0:00.00 0.0% 0.00u 0.00s 0:00.12 0.0% + Any idea where the problem could be?

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Apache https is slsow

- by raucous12

Hey, I've set apache up to use SSL with a self signed certificate. With http (KeepAlive off), I can get over 5000 requests per second. However, with https, I can only get 13 requests per second. I know there is supposed to be a bit of an overhead, but this seems abnormal. Can anyone suggest how I might go about debugging this. Here is the ab log for https: Server Software: Apache/2.2.3 Server Hostname: 127.0.0.1 Server Port: 443 SSL/TLS Protocol: TLSv1/SSLv3,DHE-RSA-AES256-SHA,4096,256 Document Path: /hello.html Document Length: 29 bytes Concurrency Level: 5 Time taken for tests: 30.49425 seconds Complete requests: 411 Failed requests: 0 Write errors: 0 Total transferred: 119601 bytes HTML transferred: 11919 bytes Requests per second: 13.68 [#/sec] (mean) Time per request: 365.565 [ms] (mean) Time per request: 73.113 [ms] (mean, across all concurrent requests) Transfer rate: 3.86 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 190 347 74.3 333 716 Processing: 0 14 24.0 1 166 Waiting: 0 11 21.6 0 165 Total: 191 361 80.8 345 716 Percentage of the requests served within a certain time (ms) 50% 345 66% 377 75% 408 80% 421 90% 468 95% 521 98% 578 99% 596 100% 716 (longest request)

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Can't mount Linux usb disk. It just create /dev/sg device but no /dev/sd

- by MTilsted

I have a Corsair R60 ssd disk which is a disk with both sata and usb connectors. But the usb thing seems to be a bit non-standard, or maybe its just my fedora linux. When I insert the disk using a usb cabel to a running Fedora 14 linux system, a device called /dev/sg3 is added but that is all. No new /dev/sd* device is created so I can't mount the disk. If I look at cat /proc/scsi/sg/device_strs I get ATA Hitachi HTS54321 FB2O HL-DT-ST DVDRAM GSA-T50N RP05 Seagate Desktop 0130 Corsair CSSD-R60GB2 So the disk is there. (The last entry) but my linux will for some reason not see it as a usb hard disk. When I insert other usb disks they work fine. It is only this specific disk which causes problems. I have tried on 3 different computers with the same result. A hint to the problem may be that if I add the disk to a windows system(With usb) the disk is called "A fixed disk" and not a portable disk as expected. The disk works fine with linux If i connect it with the sata cabel, but I would really like to have it working with usb too. (To mount it on computers without sata). Added: I did try to mount /dev/sg3 but mount say that its not a block device. (File say Its a character special device). Added output from dmesg: [ 97.454073] usb 7-1: USB disconnect, address 2 [ 105.913055] hub 2-0:1.0: unable to enumerate USB device on port 3 [ 107.048054] usb 2-3: new high speed USB device using ehci_hcd and address 5 [ 107.162900] usb 2-3: New USB device found, idVendor=1b1c, idProduct=1ab8 [ 107.162903] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=5 [ 107.162906] usb 2-3: Product: CSSD-R60GB2 [ 107.162908] usb 2-3: Manufacturer: Corsair [ 107.162910] usb 2-3: SerialNumber: 10111441000000990069 [ 107.167651] scsi7 : usb-storage 2-3:1.0 [ 108.195543] scsi 7:0:0:0: Direct-Access Corsair CSSD-R60GB2 PQ: 1 ANSI: 0 [ 108.197732] scsi 7:0:0:0: Attached scsi generic sg3 type 0

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File permission woes on an Ubuntu ec2 instance

- by Pardoner

I've set up an amazon ec2 instance and I'm have some file permission issues. I've created myself a new user and added myself to the following groups: adm:x:4:me,ubuntu sudo:x:27:me www-data:x:33:me,www-data ssh:x:108:me admin:x:111:me ubuntu:x:1000:www-data,me me:x:1001:me but when I cd /var/www I can't do simple commands without doing sudo. So I chown -R www-data:www-data /var/www to ensure that I'm in the owning group but I still have to type sudo for everything. If I sudo su www-data it works fine. Since I'm in the www-data group shouldn't I have the same privilages as www-data? One strange thing I'm noticing is that when I ls -l it list the owner but not the group names. Could this possibly be part of the issue? Is is posible for a directory to not be part of a group? drwxr-xr-x 4 www-data 4.0K Oct 24 16:39 . drwxr-xr-x 14 root 4.0K Oct 10 16:58 .. drwxrwxr-x 9 www-data 4.0K Oct 23 04:03 admin.mywebsite.com drwxrwxr-x 2 www-data 4.0K Oct 4 00:29 mywebsite.com drwxrwxr-x 9 www-data 4.0K Oct 23 04:03 staging.mywebsite.com Edit : It appears I had some alias messing with my ls command. By calling \ls -l I can see that all my files are in the correct group.

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Firefox v15.0 about:newtab inaccessible via the back button

- by Willem

As of this morning I upgraded my Firefox to version 15.0. Or well, it did it for me. That's when my issue began. I've configured Firefox so that when I open up a new tab via Ctrl-T that it loads the about:newtab page which was released in version 14.x(?). I use this functionality extensively. I visit a page from the about:newtab page, read it, press the back button and pick another frequent website from the display I want to visit. However as of v15.0 the latter part is no longer functioning, after visiting a website from the about:newtab page the back button will not let me go back to the about:newtab page. Firefox acts as if that history entry was never there. I've tried searching the release notes to see if this change was intentional or a reported bug, but I have not found anything related so far. Is there anyway to (re)configure the new Firefox v15.0 to let me access the about:newtab page via a tab's history? EDIT: It appears that this only affects the initial 'visit' to the about:newtab page when opening a new tab, manually visiting about:newtab will register it as a history entry and allow it to be navigated to via the back and forward buttons. So I guess this changes my question to 'How can I make Firefox 15.0 treat the inital page from a newtab as a history entry'.

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Macports install of ack doesn't create correct executable

- by user1664196

I am trying to install p5-app-ack port from Mac Ports, but it seems it doesn't create a /opt/local/bin/ack binary at the end: $ sudo port search *app-ack Password: p5-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.8-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.10-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.12-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.14-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories p5.16-app-ack @1.960.0 (perl) A grep replacement that ignores .svn/CVS/blib directories Found 6 ports. $ perl --version This is perl 5, version 12, subversion 4 (v5.12.4) built for darwin-thread-multi-2level Copyright 1987-2010, Larry Wall Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page. $ sudo port install p5-app-ack ---> Computing dependencies for p5-app-ack ---> Cleaning p5-app-ack ---> Updating database of binaries: 100.0% ---> Scanning binaries for linking errors: 35.0% ---> No broken files found. $ $ ls /opt/local/bin/ac* /opt/local/bin/ack-5.12 /opt/local/bin/aclocal /opt/local/bin/aclocal-1.12 /opt/local/bin/activation-client /opt/local/bin/acyclic $ which ack $ ack -bash: ack: command not found Update If I then try to install p5.12-app-ack afterwards, I get $ sudo port install p5.12-app-ack Password: ---> Computing dependencies for p5.12-app-ack ---> Cleaning p5.12-app-ack ---> Scanning binaries for linking errors: 100.0% ---> No broken files found. $

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Full-text search locks up database - error 0x8001010e

- by Stewart May

Hi We have a full-text catalog that is populated via a job every 15 minutes like so: ALTER FULLTEXT INDEX ON [dbo].[WorkItemLongTexts] START INCREMENTAL POPULATION We have encountered a problem where the database containing this catalog locks up. There are a couple of scenarios, we either see the job execute and the process hang with with a wait type of UNKNOWN TOKEN, or we see another process hang with a wait type of MSSEARCH. Once this happens the job continues to run but informs us that the request to start a full-text index population is ignored because a population is currently active. Looking in the full text log files we see the following error each time these problems occur: 2010-04-21 08:15:00.76 spid21s The full-text catalog health monitor reported a failure for full-text catalog "XXXFullTextCatalog" (5) in database "YYY" (14). Reason code: 0. Error: 0x8001010e(The application called an interface that was marshalled for a different thread.). The system will restart any in-progress population from the previous checkpoint. If this message occurs frequently, consult SQL Server Books Online for troubleshooting assistance. This is an informational message only. No user action is required."'' The only solution is to restart the SQL Server service and then the full text service. This is now occuring on a daily basis now so any help would be appreciated.

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Not able to connect to port different than 22 - OpenVPN

- by t8h7gu

I have OpenVPN network with 5 clients. Computer with Arch Linux which hosts OpenVPN server, It also hosts virtual machine with Computer with CentOS which is also connnected to OpenVPN subnet. Windows 8 which hosts virtual machine with CentOS. Both of them are connected to OpenVPN. Last one machine is virtual machine with CentOS which is hosted by computer with Ubuntu 14( which is not connected to OpenVPN. All machines in OpenVPN subnet are bolded. All phisical computers are in different networks. The problem is that when I use nmap to scan Windows and it's guest virtual machine it's saids that host seems down. When I force namp to scan specific port it shows filtered state: nmap -Pn -p 50010 n3 Starting Nmap 6.46 ( http://nmap.org ) at 2014-06-07 19:49 CEST Nmap scan report for n3 (10.8.0.3) Host is up (0.11s latency). rDNS record for 10.8.0.3: node3.com PORT STATE SERVICE 50010/tcp filtered unknown Telnet also cannot connect to this port telnet n3 50010 Trying 10.8.0.3... telnet: Unable to connect to remote host: No route to host But ss on this host show's proper state of this port ss -anp | grep 50010 LISTEN 0 50 10.8.0.3:50010 *:* users:(("java",12310,271)) What might be possible reason of that and how to fix it? EDIT I've found that I am able to connect via telnet to ssh port: telnet n3 22 Trying 10.8.0.3... Connected to n3. Escape character is '^]'. SSH-2.0-OpenSSH_5.3 So it seems that it's not problem with Windows firewall. But I have no idea what it might be. Also nmap result for first thousand ports: nmap -Pn -p 1-1000 n3 Starting Nmap 6.46 ( http://nmap.org ) at 2014-06-07 20:08 CEST Nmap scan report for n3 (10.8.0.3) Host is up (0.49s latency). rDNS record for 10.8.0.3: node3.com Not shown: 999 filtered ports PORT STATE SERVICE 22/tcp open ssh Nmap done: 1 IP address (1 host up) scanned in 77.87 seconds

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Why is ssh agent forwarding not working?

- by J. Pablo Fernández

In my own computer, running MacOSX, I have this in ~/.ssh/config Host * ForwardAgent yes Host b1 ForwardAgent yes b1 is a virtual machine running Ubuntu 12.04. I ssh to it like this: ssh pupeno@b1 and I get logged in without being asked for a password because I already copied my public key. Due to forwarding, I should be able to ssh to pupeno@b1 from b1 and it should work, without asking me for a password, but it doesn't. It asks me for a password. What am I missing? This is the verbose output of the second ssh: pupeno@b1:~$ ssh -v pupeno@b1 OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to b1 [127.0.1.1] port 22. debug1: Connection established. debug1: identity file /home/pupeno/.ssh/id_rsa type -1 debug1: identity file /home/pupeno/.ssh/id_rsa-cert type -1 debug1: identity file /home/pupeno/.ssh/id_dsa type -1 debug1: identity file /home/pupeno/.ssh/id_dsa-cert type -1 debug1: identity file /home/pupeno/.ssh/id_ecdsa type -1 debug1: identity file /home/pupeno/.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1 debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ECDSA 35:c0:7f:24:43:06:df:a0:bc:a7:34:4b:da:ff:66:eb debug1: Host 'b1' is known and matches the ECDSA host key. debug1: Found key in /home/pupeno/.ssh/known_hosts:1 debug1: ssh_ecdsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: /home/pupeno/.ssh/id_rsa debug1: Trying private key: /home/pupeno/.ssh/id_dsa debug1: Trying private key: /home/pupeno/.ssh/id_ecdsa debug1: Next authentication method: password pupeno@b1's password:

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Adding file to /etc/cron.d doesn't make it run (ubuntu 10.04)

- by tom

If I scp a cron file into /etc/cron.d it doesn't run unless I edit the file and change the command. Then crond seems to pick up the cron file. How can I make cron reload its cron files in ubuntu 10.04? 'touch'ing the file doesn't work nor does 'restart cron' or 'reload cron'. My cron file is set to run every minute and logs to a file. Nothing ends up in the log file until I edit the command, and there's no entry for it in /var/log/syslog I'm stumped. Here's my cron file saved to /etc/cron.d/runscript # Runs the script every minute. This is safe because it will exit with success if it's already running * * * * * www-data if [ -f /usr/local/bin/thing ]; then exec /usr/bin/php /usr/local/bin/thing mode:prod -a 14 -d >> /var/log/thing/mything.log 2>&1; else echo `date +'[%D %T]'` "Thing not deployed. Command not run\n" >> /var/log/thing/mything.log; fi &

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