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Search found 175 results on 7 pages for 'joao rodrigo leao'.

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  • Tomcat Clustering and Load Balancing ?

    - by Rodrigo Asensio
    I have 3 tomcat servers where users get into all time. They are 3 because the processing of each request is heavy (lot of sql). Users enters to server 1 or 2 or 3. Now I want to make them "one". I know I need do clustering but, will clustering spread the requests thru the 3 servers or here is where I need implement load balancing with apache2 ?

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  • Mail server hammering

    - by Rodrigo
    I've noticed a quick increase on smtp connections coming to my server, investigating it further i figured out that there's a botnet hammering my smtp server. I've tried to stop it by adding a rule at iptables: -N SMTP-BLOCK -A SMTP-BLOCK -m limit --limit 1/m --limit-burst 3 -j LOG --log-level notice --log-prefix "iptables SMTP-BLOCK " -A SMTP-BLOCK -m recent --name SMTPBLOCK --set -j DROP -A INPUT -p tcp --dport 25 -m state --state NEW -m recent --name SMTPBLOCK --rcheck --seconds 360 -j SMTP-BLOCK -A INPUT -p tcp --dport 25 -m state --state NEW -m recent --name SMTP --set -A INPUT -p tcp --dport 25 -m state --state NEW -m recent --name SMTP --rcheck --seconds 60 --hitcount 3 -j SMTP-BLOCK -A INPUT -p tcp --dport 25 -m state --state NEW -j ACCEPT That would avoid them from hammering "too fast", however the problem still, there's like 5 tries per second, it's going insane, i had to incrase the maximum number of childs of sendmail/dovecot. There's too many ips to filter out manually and simply changing the smtp to another port is not practical since i got many other clients on that server. I'm using sendmail with dovecot, any ideas to have this filtered out more efficiently?

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  • Open mysql only to localhost and a particular address

    - by Rodrigo Asensio
    My config: ubuntu server 9 and msyql 5 my.cnf = bind-address = 0.0.0.0 my iptables script = iptables -A INPUT -i eth0 -s 99.88.77.66 -p tcp --destination-port 3306 -j ACCEPT I can connect from any place to mysql, not only that IP. I made a iptables-save , /etc/init.d/netwokring restart... but I still can connect from any IP, any clue ?

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  • Email postfix marked as spam by google

    - by Rodrigo Ferrari
    Hello friends, I searched about this question, found some few answers but no idea how to fix, the problem is that I realy dumb with all this! I configured the postfix and done everything how the install how to told. It send the email, but get marked as spam! The header is this one: Delivered-To: [email protected] Received: by 10.223.86.203 with SMTP id t11cs837410fal; Wed, 12 Jan 2011 04:02:21 -0800 (PST) X-pstn-nxpr: disp=neutral, [email protected] X-pstn-nxp: bodyHash=9c6d0c64fa3a4d663c9968e9545c47d77ae0242e, headerHash=1ab8726bd17a23218309165bd20fe6e0911627cd, keyName=4, rcptHash=178929be6ed8451d98a4df01a463784e6c59b3b4, sourceip=174.121.4.154, version=1 Received: by 10.100.190.13 with SMTP id n13mr537609anf.76.1294833740396; Wed, 12 Jan 2011 04:02:20 -0800 (PST) Return-Path: <[email protected]> Received: from psmtp.com ([74.125.245.168]) by mx.google.com with SMTP id w2si1297960anw.132.2011.01.12.04.02.19; Wed, 12 Jan 2011 04:02:20 -0800 (PST) Received-SPF: pass (google.com: domain of [email protected] designates 174.121.4.154 as permitted sender) client-ip=174.121.4.154; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 174.121.4.154 as permitted sender) [email protected] Received: from source ([174.121.4.154]) by na3sys010amx168.postini.com ([74.125.244.10]) with SMTP; Wed, 12 Jan 2011 12:02:19 GMT Received: from localhost (server [127.0.0.1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by brasilyacht.com.br (Postfix) with ESMTP id 87C121290142; Wed, 12 Jan 2011 09:50:29 -0200 (BRST) From: YachtBrasil <[email protected]> Reply-To: Vendas <[email protected]> Cc: YachtBrasil <[email protected]> To: [email protected] Subject: teste Date: Wed, 12 Jan 2011 09:50:29 -0200 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline MIME-Version: 1.0 Message-Id: <[email protected]> X-pstn-2strike: clear X-pstn-neptune: 0/0/0.00/0 X-pstn-levels: (S: 1.96218/99.81787 CV:99.9000 FC:95.5390 LC:95.5390 R:95.9108 P:95.9108 M:97.0282 C:98.6951 ) X-pstn-settings: 3 (1.0000:1.0000) s cv gt3 gt2 gt1 r p m c X-pstn-addresses: from <[email protected]> [db-null] I'm out of ideas on how to fix this, I think it's dns issue, but I have marked the spf inside my tinydns =( Is there anything I can check to know why this email is marked as spam? Any help will be appreciated! Thanks and sorry for my bad english.

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  • Shell scripts in sendmail aliases

    - by Rodrigo Asensio
    I'm trying to execute a sendmail alias script using this # aliases for my system addressx: |sh /usr/share/scripts/myscript.sh WON'T WORK addressx: '/usr/share/scripts/myscript.sh' WON'T WORK addressx: '|/usr/share/scripts/myscripts.sh' WON'T WORK Can I execute scripts or it must be a binary file ?

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  • Is there a way to import a scheduled task from windows 2003 (.job) to windows 2008 (.xml)?

    - by Rodrigo
    I had some jobs to be moved from the old production server (windows 2003 server standard) to the new machine (windows 2008 server standard), but the new server is unable to read the old .job format, also the import wizard only imports from .xml job files (same version). Obviously I don't want to rebuild all the jobs by hand, but can't find a tool that makes the process a very little easier. I don't trust in Microsoft for this kind of tools, my previously experiences had been to bad (DTS - SSIS). Any ideas? Thanks in advance.

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  • CentoOS SSH Access

    - by Rodrigo
    I'm executed this commands with root user i'm on a CentOS 6.3 server: #useradd newuser #passwd newuser #visudo then I added this line at end of file: AllowUsers newuser #service sshd restart #exit Now, I can't access server with deployer or root user! Both accounts return: **Permission denied, please try again.** Any suggestions? EDIT: Why add AllowUsers newuser dont allows newuser to login by ssh?

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  • How to fix incorrect margins when printing from Windows 7?

    - by Rodrigo Guerreiro
    My printer is a HP Photosmart 2575. When I print from my Windows XP the margins are all ok, but when I print from my Windows 7 laptop the top margin is 2x larger for the same document, and as a result the bottom is cropped. I've already found one (http://h30434.www3.hp.com/t5/Printer-All-in-One-Software-and/Deskjet-5150-printer-incorrect-margins-with-Vista-64-bit/td-p/103166) thread in HP forums from someone that seems to have the same problem than me, but no solution is provided. My Windows 7 is the Home Premium x64. Can anyone help me?

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  • How to fix incorrect margins when printing from Windows 7?

    - by Rodrigo Guerreiro
    My printer is a HP Photosmart 2575. When I print from my Windows XP the margins are all ok, but when I print from my Windows 7 laptop the top margin is 2x larger for the same document, and as a result the bottom is cropped. I've already found one (http://h30434.www3.hp.com/t5/Printer-All-in-One-Software-and/Deskjet-5150-printer-incorrect-margins-with-Vista-64-bit/td-p/103166) thread in HP forums from someone that seems to have the same problem than me, but no solution is provided. My Windows 7 is the Home Premium x64. Can anyone help me?

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  • Process emails with /etc/aliases

    - by Rodrigo Asensio
    I'm calling shell scripts inside /etc/smrsh to process incoming emails as commands for my system. As I'm seeing all incoming emails are not making it to /var/mail/spool/USER. Is there any way I can access to the content of the emails ? some variable $1 $2 comming with the content values ? If not, how do I access to the content of the emails received ? thanks guys

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  • Windows 7 Keeps Changing the MBR on boot (grub2)

    - by Rodrigo
    I installed Ubuntu in my new notebook. It originally comes with Windows 7 installed on it. Everything works nice however every time i boot into Windows7 the grub menu doesn't work any more. i can't boot into windows or ubuntu any more. How do I stop this? Its rather annoying to have to boot, chroot and fix this problem everytime.

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  • Is there a way to import a scheduled task from windows 2003 (.job) to windows 2008 (.xml) ?

    - by Rodrigo
    I had some jobs to be moved from the old production server (windows 2003 server standard) to the new machine (windows 2008 server standard), but the new server is unable to read the old .job format, also the import wizard only imports from .xml job files (same version). Obviously I don't want to rebuild all the jobs by hand, but can't find a tool that makes the process a very little easier. I don't trust in Microsoft for this kind of tools, my previously experiences had been to bad (DTS - SSIS). Any ideas? Thanks in advance.

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  • CentOS Vulnerabilities - Exploits/Payloads

    - by Joao Heleno
    Greetings. I'm doing an academic work where I have to find vulnerabilities in CentOS and show how to take advantage of those same vulnerabilities. I'm no hacker and I'm finding this task to be of great difficulty, that is, I see all the security alerts and their descriptions but no explanation of how to take advantage. Maybe I'm being a little naive but all I want to know is if there is any tool I can use to show that CentOS 5.0 vulnerability XPTO exists and to show it "working". If possible something like CVE-2007-0001 exploit tool, CVE-2007-0002 payload and so on. Thanks.

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  • Network keeps disconnecting - Repairing solves it. Router configuration

    - by Joao Carlos
    My network connection keeps going insane, it will keep normal applications connected, like TeamViewer and MSN, but webpages will stop loading (Problem loading page). Everything looks connected and works like a charm, but webpages and new connections wont work. If I press "Repair" in the network connections to restart the adapter, it will work. This happens on WIRED and WIRELESS connections, both on Windows and on MacOSx. I have had this for years (different computers, routers, cities), but I never figured it out. I learn to live with it, but, I think theres probably a solution. What must I be doing wrong if this keeps happening? You guys have same thing?

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  • Sync iPhone Mail with Webmail

    - by João Paulin
    I had an email account [email protected] hosted on Host A. This mailbox had 100 messages. I wanted to migrate to Host B, so I download all the 100 messages from Host A on my iPhone. Now that my site was successfully migrated to Host B and the email account [email protected] was created again (the mailbox is empty), how can I send the messages that I have downloaded on my iPhone to the mailbox on Host B? Note that the migration from Host A to Host B did not change the IMAP and SMTP adressess and parameters. I'm still using the same addresses, parameters and ports as before. The email accounts just switched hosting.

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  • Different keyboard layouts at same time for different devices

    - by Joao Carlos
    I have a MacBook Pro running Snow Leopard, and I am using it as a portable but also desktop computer. In order to acheive this, I bought a VGA adapter and I am using it with an external mouse, keyboard, and monitor. The problem is, the external keyboard layout is different from the one on the macbook. It is set to US qwerty (its a logitech G15), and because of that, most keys behave differently than they should. Question is, how can I set up different layouts at same time for different devices? I want US for external keyboard and PT for the default one.

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  • Samba - Is my server vulnerable to CVE-2008-1105?

    - by Joao Heleno
    Hi! I have a CentOS server that is running Samba and I want to verify the vulnerability addressed by CVE-2008-1105. What scenarios can I build in order to run the exploit that is mentioned in http://secunia.com/advisories/cve_reference/CVE-2008-1105/? http://secunia.com/secunia_research/2008-20/advisory/ says that "Successful exploitation allows execution of arbitrary code by tricking a user into connecting to a malicious server (e.g. by clicking an "smb://" link) or by sending specially crafted packets to an "nmbd" server configured as a local or domain master browser." More info: http://www.samba.org/samba/security/CVE-2008-1105.html http://secunia.com/secunia_research/2008-20/advisory/

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  • Diferent keyboard layouts at same time for diferent devices

    - by Joao Carlos
    Hello, I have a MacBook Pro running Snow Leopard, and I am using it was a portable but also desktop computer. In order to acheive this, i bought a VGA adapter and I am using it with an external mouse+keyboard+monitor. The problem is, the external keyboard layout is diferent from the one on the macbook. It is set to US qwerty (its a logitech G15), and because of that, most keys behave diferently from what they are supposed to. Question is, how can I set up diferent layouts at same time for diferent devices? I want US for external keyboard and PT for the default one.

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  • CentOS Insufficient space in download directory /var/cache/yum/base/packages

    - by Joao Heleno
    Hello! I was trying to yum install libpcap when I got Error Downloading Packages: 14:libpcap-0.9.4-15.el5.i386: Insufficient space in download directory /var/cache/yum/base/packages * free 0 * needed 108 k Here's output from df -h: Filesystem Size Used Avail Use% Mounted on /dev/sda1 20G 19G 0 100% / /dev/sda3 202G 38G 154G 20% /home tmpfs 1.5G 0 1.5G 0% /dev/shm And fdisk -l: Disk /dev/sda: 250.0 GB, 250000000000 bytes 255 heads, 63 sectors/track, 30394 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 2611 20972826 83 Linux /dev/sda2 2612 3251 5140800 82 Linux swap / Solaris /dev/sda3 3252 30394 218026147+ 83 Linux I have launched yum clean all with no success clearing up space. Please advise. Thanks.

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  • Root partition full? CentOS

    - by Joao Heleno
    Hi! I'm running CentOS 5.4 and my / is full. I wanted to install gparted but in order to do that I must install Priorities and it's when I get an error saying / is full so I can't go forward. Here's some output: fdisk -l Disk /dev/sda: 250.0 GB, 250000000000 bytes 255 heads, 63 sectors/track, 30394 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 2611 20972826 83 Linux /dev/sda2 2612 3251 5140800 82 Linux swap / Solaris /dev/sda3 3252 30394 218026147+ 83 Linux df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 20315812 19365152 0 100% / /dev/sda3 211196248 49228164 151066780 25% /home tmpfs 1552844 0 1552844 0% /dev/shm I'm not using LVM. Please advise. Thanks

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  • What hardware makes a good MongoDB Server ? Where to get it ?

    - by João Pinto Jerónimo
    Suppose you're on dell.com right now and you're buying a server to run your MongoDB database for your small startup. You will have to handle literally tens of thousands of writes and reads per minute (but small objects). Would you go for 2 processors ? Invest more on RAM ? I've heard (correct me if I'm wrong) MongoDB handles the most it can on the RAM and then flushes everything to the disk, in that case I should invest on a CPU with a large L2 cache, probably 40GB of RAM and a solid state drive.. right ? Would I be better off with a high end (~$11,309, 2 expensive processors, 96GB of RAM) server or 2x(~$6,419, 2 expensive processors, 12GB of RAM) servers ? Is Dell ok or do you have better sugestions ? (I'm outside the US, on Portugal)

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