Majid Azimi's questions

I have configured kannel with smsc. The problem is I get delivery reports for some messages and for some others I get:

ERROR: SMPP[XXX]: got DLR but could not find message or was not interested in it id<2691146294> dst<98XXXXXXXXXX>, type<1>

here is my configuration:

group = core
admin-port = 13000
admin-password = 123456
status-password = 654321
admin-deny-ip = "*.*.*.*"
admin-allow-ip = "127.0.0.1"
smsbox-port = 13001
box-deny-ip = "*.*.*.*"
box-allow-ip = "127.0.0.1"
log-file = "/var/log/kannel/bearerbox.log"
log-level = 1
store-type = spool
store-location = "/var/lib/kannel"
store-dump-freq = 60
sms-incoming-queue-limit = 10000000
sms-outgoing-queue-limit = 10000000
sms-resend-freq = 10
sms-resend-retry = -1
access-log = "/var/log/kannel/bearerbox-access.log"

group = smsc
smsc = smpp
smsc-id = my-smsc
host = XXX.XXX.XXX.XXX
port = 5019
receive-port = 5019
system-type = VMA
smsc-username = XXX
smsc-password = XXX
throughput = 1
reconnect-delay = 10
msg-id-type = 0x01

group = smsbox
smsbox-id = my-smsbox
bearerbox-host = 127.0.0.1
sendsms-port = 13013
log-file = "/var/log/kannel/smsbox.log"
log-level = 1

group = smsbox-route
smsbox-id = my-smsbox
smsc-id = my-smsc

group = sendsms-user
username = username
password = password
concatenation = true
max-messages = 100

I'm sending each message with dlr-mask set to 3 and dlr-url like this:

http://10.0.0.1/delivery?id=12345687&type=%d"

id is message id in database. can anyone help?

I'm trying to install Debian wheezy on a used hp server via HP iLO Management Engine. Everything installs fine but when booting it shows warning that it can not find bnx2/bnx2-mips-09-6.2.1a.fw(which is Broadcom NetXtremeII network adapters firmware). After booting, I can do ifconfig and it shows 4 interfaces and their mac addresses but I can not ping gateway. Also Cisco switch which this server connects to does not show any mac address in its mac table. Is this normal? Can switch detect mac address if the OS does not have driver? Can it be the network card problem? By the way when connecting patch cables the light on the NIC turns on. I don't have any physical access to server so I can install firmware.

Is it possible to do static route tracking using IP SLA in Linux? What I want to do is something like this:

I have two internet connections(ADSL and Wimax) connecting to switch. Use ADSL line if you can not reach 8.8.8.8 change default gateway and use Wimax.

Is it possible to do something like this? Or I will need another router?

I have 10 clients and one server syncing with 2 NTP servers on windows using Meinberg NTP, all of them running Windows XP SP3. Except the server all of them syncing their time perfectly. The one that is losing its sync is running SQL server 2008, filezilla and NUUO surveillance system. On this system NTP offset is growing every time it polls from servers until it becomes out of sync after two days. Then I should restart NTP server or reboot the whole system. My NTP configuration is simple:

server  127.127.1.0 minpoll 4
fudge   127.127.1.0 stratum 10

server 192.168.1.102 minpoll 4 burst prefer
server 192.168.1.220 minpoll 4 burst prefer 

This configuration is used on other clients. 192.168.1.102 and 192.168.1.220 are syncing their time with internet. All of the clients are on wireless LAN(server and two NTP servers are on physical gigabit LAN). Can anyone suggest what is causing problem?

[UPDATE]

ntpdc -c sysinfo output:

system peer:          192.168.1.102
system peer mode:     client
leap indicator:       11
stratum:              4
precision:            -20
root distance:        0.41095 s
root dispersion:      1.90089 s
reference ID:         [192.168.1.102]
reference time:       d4a0ce3c.13374d75  Wed, Jan 16 2013 10:29:08.075
system flags:         auth monitor ntp kernel stats
jitter:               0.503342 s
stability:            0.000 ppm
broadcastdelay:       0.000000 s
authdelay:            0.000000 s

ntpdc -p output:

     remote           local      st poll reach  delay   offset    disp
=======================================================================
=LOCAL(1)        127.0.0.1       10   16    0 0.00000  0.000000 3.96863
=192.168.1.220   192.168.1.5      2   16  377 0.00017  2.088162 0.01524
*192.168.1.102   192.168.1.5      3   16  373 0.02069  2.065532 0.01714

We have a network of 10 clients running Windows XP with meinberg ntp. Clients are syncing with two ntp servers over a 40Km wireless network using mikrotik devices. Some of clients are connecting to ntp servers over a hop to hop links. ntp servers are syncing with the Internet. The problem is ntp clients are become out of sync after two or three days. After I restart service everything is OK. I should do this procedure every two days. I want to know is this because of long way wireless link? My ntp conf files are simple:

server 192.168.1.2 iburst
server 192.168.1.3 iburst

Windows time service and firewall is disabled. Is there any solution? Am I missing any configuration option?

nixcraft has a tutorial on configuring memcached server(link) at the end says:

For busy memcached server you need to increase system file descriptor and IP port limits

here is the code to do so:

# Increase system IP port limits
net.ipv4.ip_local_port_range = 2000 65000

why should we do this? memcached is a server and it will respond to clients with its listening port which is 11211 by default. So we shouldn't be limited by local port range.(net.ipv4.ip_local_port_range) The only limit is file descriptors. local port range should be a limit for servers like squid which generate local traffic

what is the difference between slab, page and chunk in memcached? If we set -m 128, then how many slab, page, chunk we have? What is the benefit of slab?

When using COPY to restore a CSV file, phppgadmin shows that the real database size(4GB) but when I choose to browse the table it shows Estimated row count to 0. I did a VACUUM ANALYZE. simple SELECT queries returns 0 rows, but the database size is 4GB. Also:

SELECT count(*) FROM tbl_data

return 0. Can anyone help?

I'm restoring a CSV file to database with COPY command. The csv file is bziped. I use this command:

bunzip2 -c -d online-20110923000001.csv.bz2 | psql -U user -h 127.0.0.1 -d testdb -c "COPY data FROM STDIN WITH CSV HEADER;"

After some time it stops with:

SSL error: ssl handshake failure
connection was lost to database

Log file shows:

2012-03-06 10:01:10 IRST STATEMENT:  COPY data FROM STDIN WITH CSV HEADER;
2012-03-06 10:01:10 IRST LOG:  SSL error: ssl handshake failure
2012-03-06 10:01:10 IRST CONTEXT:  COPY data, line 8349702
2012-03-06 10:01:10 IRST STATEMENT:  COPY data FROM STDIN WITH CSV HEADER;
2012-03-06 10:01:10 IRST LOG:  could not receive data from client: Connection reset by peer
2012-03-06 10:01:10 IRST CONTEXT:  COPY data, line 8349702

Could anyone help? Does psql use SSL? How can I disable it? I restarted the command above and now it is working fine again. I haven't changed any PostgreSQL configuration. I'm running PostgreSQL 8.4.10 on Debian 6.

Below is my openVPN network topology. This is an example in openvpn cookbook. here is my server config file(fedora is server):

proto udp
port 1194
dev tun
server 192.168.200.0 255.255.255.0

ca /etc/openvpn/cookbook/ca.crt
cert /etc/openvpn/cookbook/openvpnserver.crt
key /etc/openvpn/cookbook/openvpnserver.key
dh /etc/openvpn/cookbook/dh2048.pem
tls-auth /etc/openvpn/cookbook/ta.key 0

keepalive 10 60

push "route 192.168.4.0 255.255.255.0"
topology subnet

daemon
log-append /home/mazimi/Desktop/openvpn.log

client-config-dir /etc/openvpn/cookbook/clients
route 192.168.2.0 255.255.255.0 192.168.200.1

Here is /etc/openvpn/cookbook/clients file:

iroute 192.168.2.0 255.255.255.0

This is my openvpn client(ubuntu):

client
proto udp
remote 192.168.3.1
port 1194
dev tun

ca /etc/openvpn/cookbook/ca.crt
cert /etc/openvpn/cookbook/client1.crt
key /etc/openvpn/cookbook/client1.key
tls-auth /etc/openvpn/cookbook/ta.key 1

daemon
log-append /root/openvpn.log

ns-cert-type server

This configuration is working fine. But why the next hop is set to 192.168.200.1?(it is a local interface not next-hop). Shouldn't it be 192.168.200.2? I changed it to 192.168.200.2. The only difference is that:

1. I can not ping ubuntu's interface(192.168.3.254) from client1
2. I can not ping fedora's interface(192.168.3.1) from client2 All other IPs are reachable.

Could someone explain?

we hard-code native vlan tagging:

vlan dot1q tag native

then we configure a port like this:

interface FastEthernet0/1
switchport access vlan 20
switchport mode access
switchport voice vlan 500
mls qos trust cos
spanning-tree portfast

Does this cause problem? I mean second configuration assumes that there are two vlans:

1. native vlan which is untagged (but here it is tagged)
2. voice vlan

I was using kernel-3.1.2-1 in fedora 16. then updated to kernel-3.1.4-1. after reboot now grub shows command prompt instead of boot menu. i tried to load manually with:

set root=(hd0,msdos3)
linux /vmlinuz-3.1.4-1.fc16.x86_64
initrd /initramfs-3.1.4-1.fc16.x86_64.img

but in the middle of booting it shows something like kernel panic and stops. I tried this with previous kernel (3.1.2-1) but it shows the same output. here is my grub.cfg:

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
set default="0"
if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}


set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora (3.1.4-1.fc16.x86_64)' --class fedora --class gnu-linux --class gnu --class os {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo 'Loading Fedora (3.1.4-1.fc16.x86_64) ...'
    linux    /vmlinuz-3.1.4-1.fc16.x86_64 root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo 'Loading initial ramdisk ...'
    initrd /initramfs-3.1.4-1.fc16.x86_64.img
menuentry 'Fedora (3.1.2-1.fc16.x86_64)' --class fedora --class gnu-linux --class gnu --class os {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo 'Loading Fedora (3.1.2-1.fc16.x86_64) ...'
    linux    /vmlinuz-3.1.2-1.fc16.x86_64 root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo 'Loading initial ramdisk ...'
    initrd /initramfs-3.1.2-1.fc16.x86_64.img
}
submenu "Xen 4.1.2" {
menuentry 'Fedora Linux, with Xen 4.1.2 and Linux 3.1.4-1.fc16.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen 4.1.2 ...'
    multiboot    /xen-4.1.2.gz placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
menuentry 'Fedora Linux, with Xen 4.1.2 and Linux 3.1.4-1.fc16.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen 4.1.2 ...'
    multiboot    /xen-4.1.2.gz placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro single rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
}
submenu "Xen syms-4.1.2" {
menuentry 'Fedora Linux, with Xen syms-4.1.2 and Linux 3.1.4-1.fc16.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen syms-4.1.2 ...'
    multiboot    /xen-syms-4.1.2 placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
menuentry 'Fedora Linux, with Xen syms-4.1.2 and Linux 3.1.4-1.fc16.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os --class xen {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 41a4bc4d-ff84-4666-a75f-6addb3b7db59
    echo    'Loading Xen syms-4.1.2 ...'
    multiboot    /xen-syms-4.1.2 placeholder
    echo    'Loading Linux 3.1.4-1.fc16.x86_64 ...'
    module    /vmlinuz-3.1.4-1.fc16.x86_64 placeholder root=UUID=ba8be145-4880-47d2-8fdf-7115d33c59df ro single rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
    echo    'Loading initial ramdisk ...'
    module    /initramfs-3.1.4-1.fc16.x86_64.img
}
}
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" --class windows --class os {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set=root 0064D65C64D653CE
    drivemap -s (hd0) ${root}
    chainloader +1
}

Could anyone help?

[Edit] However I I tested now, I can boot windows with:

set root=(hd0, msdos1)
chainloader +1
boot

[Edit] Here is the screenshot:

I want to configure hadoop to run in pseudo-distributed mode. My configuration files:

core-site.xml:

<configuration>
    <property>
        <name>fs.default.name</name>
        <value>hdfs://localhost/</value>
    </property>
</configuration>

hdfs-site.xml:

<configuration>
    <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
</configuration>

mapred-site.xml:

<configuration>
    <property>
        <name>mapred.job.tracker</name>
        <value>localhost:8021</value>
    </property>
</configuration>

the hadoop version I'm using command hadoop version is:

Hadoop 0.20.203.0
Subversion http://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20-security-203 -r 1099333
Compiled by oom on Wed May  4 07:57:50 PDT 2011

I have set the JAVA_HOME environmental variable to:(I'm using fedora 15)

/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64

the output of export $JAVA_HOME is:

/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64

But when I run start-dfs.sh it says:

localhost: Error: JAVA_HOME is not set.

The only thing that log files show is the above statement. Could anyone help?

I configured a WebDAV server using Apache. Here is my configuration:

DAVLockDB /var/www/DAVLock.db

<Location /majid>
    AllowOverride None
    Options +Indexes
    DAV On
    AuthUserFile /var/www/users.db
    AuthName Authentication
    AuthType Basic
    <Limit GET PUT DELETE PROPFIND PROPPATCH MKCOL COPY MOVE LOCK UNLOCK>
        Require user majid
    </Limit>
</Location>

Alias /majid /var/www/dav/majid

/var/www/DAVLock.db is owned by apache user and group. I can access WebDAV share via browser. I have configured a WebFolder in Windows XP SP3. But I can't create file and folders. error_log file says:

[Tue Oct 11 17:05:12 2011] [error] [client 192.168.1.2] File does not exist: /var/www/dav/majid/New Folder
[Tue Oct 11 17:05:12 2011] [error] [client 192.168.1.2] The locks could not be queried for verification against a possible "If:" header.  [500, #0]
[Tue Oct 11 17:05:12 2011] [error] [client 192.168.1.2] Could not open the lock database.  [500, #400]
[Tue Oct 11 17:05:12 2011] [error] [client 192.168.1.2] (13)Permission denied: Could not open property database.  [500, #1]

Can anyone help? Another question is: Do we need Options +Indexes for WebDAV clients to list files and folders or it is only for web access using browser?

I'm installing glassfish 3.1 on Windows XP service pack 3. but in configuration step it gives this error:

PERFORMING THE REQUIRED CONFIGURATIONS
______________________________________

CREATING DOMAIN
_______________
Executing command :C:\glassfish3\glassfish\bin\asadmin.bat --user admin --passwordfile C:\DOCUME~1\MAJIDA~1\LOCALS~1\Temp\glassfish-3.1-windows-ml.exe6\asadminTmp1079044298673991344.tmp create-domain --savelogin --checkports=false --adminport 4848 --instanceport 8080 --domainproperties=jms.port=7676:domain.jmxPort=8686:orb.listener.port=3700:http.ssl.port=8181:orb.ssl.port=3820:orb.mutualauth.port=3920 domain1
C:\glassfish3\glassfish\bin\asadmin.bat --user admin --passwordfile C:\DOCUME~1\MAJIDA~1\LOCALS~1\Temp\glassfish-3.1-windows-ml.exe6\asadminTmp5898014821156752751.tmp create-domain --savelogin --checkports=false --adminport 4848 --instanceport 8080 --domainproperties=jms.port=7676:domain.jmxPort=8686:orb.listener.port=3700:http.ssl.port=8181:orb.ssl.port=3820:orb.mutualauth.port=3920 domain1Unknown error when trying port 4848.  Try a different port number.
Command create-domain failed.
CLI130 Could not create domain, domain1

I change 4848 to any other port. but it doesn't work. firewall is completely disabled. Could anyone help?

HI guys.

when i configure Files in this way:

<Files ~ "\.png$">
    deny from all
</Files>

it works. but when defining in this way it doesn't work:

<Files /var/www/test/file.png>
    deny from all
</Files>

Directives are not inside Directory directive. Could someone help?

Is there any difference between these configurations:

<Directory /var/www>
.....
</Directory>

and

<Directory /var/www/>
.....
</Directory>

There is a line in squid default configuration:

# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports

acls are applied from top down, so CONNECT acl will deny access to all non SSL and SSL ports. I mean it never reaches the second access rule.

I have installed debian 6.0.1a. I have install all XEN stuff. including xen kernel, libvirtd, ... but when i want to connect xend, virt-manager shows me this:

Verify that:

• A Xen host kernel was booted

• The Xen service has been started details:

  Unable to open connection to hypervisor URI 'xen:///': unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: Permission denied Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/connection.py", line 971, in _try_open None], flags) File "/usr/lib/python2.6/dist-packages/libvirt.py", line 111, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: unable to connect to '/var/run/libvirt/libvirt-sock', libvirtd may need to be started: Permission denied here is uname output:

  Linux debian 2.6.32-5-xen-amd64 #1 SMP Tue Mar 8 00:01:30 UTC 2011 x86_64 GNU/Linux

and also xend and libvirtd is runnig:

root@debian:/home/mazimi# /etc/init.d/libvirt-bin status
Checking status of libvirt management daemon: libvirtd running.

root@debian:/home/mazimi# /etc/init.d/xend start
Starting Xen daemons: xenstored xenconsoled xend.

permissions for livbirt-sock:

root@debian:/home/mazimi# ls -alih /var/run/libvirt/
total 12K
671017 drwxr-xr-x  3 root root    4.0K Apr 15 13:54 .
654083 drwxr-xr-x 18 root root    4.0K Apr 15 13:54 ..
670901 srwxrwx---  1 root libvirt    0 Apr 15 13:54 libvirt-sock
670928 srwxrwxrwx  1 root libvirt    0 Apr 15 13:54 libvirt-sock-ro
670870 drwxr-xr-x  2 root root    4.0K Apr 15 02:34 qemu

and also we have group named libvirt in /etc/group

When running libvirtd with verbose mode it behaves kind of stange:

root@debian:/var/log/libvirt# /usr/sbin/libvirtd --verbose
17:26:55.841: warning : qemudStartup:1832 : Unable to create cgroup for driver: No such device or address
17:26:56.128: warning : lxcStartup:1900 : Unable to create cgroup for driver: No such device or address

and waits infinitely.

Could we use LVM snapshots to backup database servers? Or we can only use it for file system backups?