I am wanting to get access to 'top -c' for a period of 48/72 hours.
Now I have found the following
Code:
top -c -b -d 15 > top.txt
What this does is every 15 seconds add reply 'top -c' to top.txt
Now I can make this into a shell script then put it into the background and exit SSH while leaving it running.
Now the question is will this use much usage/server load over the 48/72hrs, it will be checking 4 times every minute.
I have in my possession a new server which is running cPanel. For some unknown reason it keeps crashing about every 4-6 hours where I must get a remote reboot done.
Its starting to annoy me that I'm unable connect to anything. What I suspect is high disk red/write. As what I'm finding is over 10k blocks being written per second with only 300 being read per second. I also am not seeing any bandwidth out/in usage being high.
I thought i'd just post a quick message on here to see what you guys make of this situation. It's only happened with what, the past hour or so, but when i check the visitor logs on our website it seems that a "YouMonitor.us" is constantly spamming connections to the website over 1 second intervals (even less than that in some cases).
Furthermore, its coming in from different IP address's all the time and therefore its inappropriate to block everyone as they seem to just constantly change.
Today i was informed that some of Apache instances are vulnerable for serving content while client is constantly pressing F5 button in browsers - once is pressed CPU load is increasing, page became slow etc. (it's dynamic content served by back-end Tomcats). In the same time i see errors with connection between Apache and Tomcats' instances.
Is there any good way to protect Apache against it ?
My server is constantly crashing (halting to dead) and needing reboot literally every few hours. I cannot trace the cause of this whatsoever. Please help out.
CPU/Memory/MySQL Usage shows no accounts in red or yellow zone ....
I have a dedicated RHEL server with cPanel and my server loads spikes about +0.4 (out of 2.0) for about 30 mins every 4-6 hours or so. My regular server load is 0.01, because there is barely any traffic on the server yet, but by looking at my top processes in WHM, I can see that the processes that are spiking the Server Load when it is high, is something like:
sshd: [priv] root
sshd: [priv] root
sshd: [priv] root
sshd: [accepted]
sshd: [priv] games
sshd: [priv] news
sshd: [priv] root
sshd: [priv] root
sshd: [accepted]
...something along these lines. And a lot of times there are 10-20 of these sshd processes at one time.
My server is managed and my dedicated server engineer said it was probably a bot trying passwords. He took one of the IP's, said it was from Taiwan, and blocked that IP in iptables.
However, this is still happening constantly with different IP's. Is there a way to prevent this from happening? I'm the only person (and my host) who should be able to login to my server using SSH... however, I don't have a static IP and I work from multiple locations, so only allowing certain IP's won't work for me.
First off, is this normal? Or am I being attacked or what? What can I do to remedy this? It seems the bots haven't successfully logged in, but they are spiking my server load which is NOT what I want.
I was having issues with what I would like to think as power.
Now, I was wondering if there are any SQL database benchmarks, or something else I can run on the system for a given period of time, that will let me see if I'm still having those power issues.
I keep seeing sa login failure on Event viewer Application log for MS SQL 2005. I'm tired of blocking off the failed attempt ip. A huge portion of them seem to come from China and Estern Euro. Should i just block off those region? Is there a better way for securing SQL2005?
View 1 Replies View RelatedWe first noticed the issue on July 19th, Backups were taking a while to transfer from our own servers, and we were getting tickets from clients asking why this was happening. At the same time, it took about 4-5 minutes to log into the backup console. Issue seemed to correct itself so that backups were possible, and we assumed that scott would be aware of it and would work to resolve it.
Again on the 29th it slowed completely again. We immediately dispatched an email to their support email asking whats up, gave them detailed information such as access to the script and the output so he could monitor it.
The same day a few hours later we got a response that he would run the script and monitor it.
On the 31st, after not getting an update I asked what was going on. He said he ran the script, it seemed to stall for long periods of time and he would know more in the afternoon.
After not getting an update for ~5 days I asked what was going on and I expressed that i was not happy with the lack of communication/updates ont he situation. He updated me later that day saying that we weren't the only ones being affected. Fair enough, he is working on it. Thats all I wanted to hear.
Now ever since that email I received on the 5th (AUG) it has been up and down and all over the place.
After seeing him post on the forums I sent him a PM (10th August), summed up it was basically saying I had an issue, and I need it fixed. I figured since the PM system is usually pretty good at not losing them that he would see it and respond accordingly, that way there was no chance of it being lost from point A to point B as an email.
Well to this day, no response nor resolution.
I really have exhausted all points of communication, and I want to make it clear that I am not bashing them, when it works it's great. But maybe someone else affected can provide more insight..
Not sure why, but for some reason lately our Plesk installation randomly sends us notification emails about alarm level changes which go from Green to yellow, yellow to red, then goes back to normal over time. No changes were made on the server for these constant changes and emails to occur. We have a customer who also has the same issue.. Both focus primarily on nginx with little to no usage of apache.
View 2 Replies View RelatedThis problem has been reported before Plesk Panel 11. What's the current solution for this problem? I've got this problem since I upgraded to Plesk Panel 11.09.
I'm getting spammed with emails like:
Server health parameter "Services > Apache memory usage" changed its status from "green" to "yellow". Click to expand...
I had Plesk 10 installed on my openSUSE system (was a low version, maybe 11 or less) and then decided to upgrade to 11.5. So I did distribution upgrades to openSUSE 12.3 and everything went smoothly, except for some services like mysql and php. So I used Plesk autoinstaller to fix the php error and edited an outdated line in mysql configuration and both services ran smoothly!
Then I downloaded Plesk autoinstaller and ran the autoinstaller, but was surprised by this error message:
===> Checking for previous installation ... found.
ERR (3) [panel]: Error during product key mode determination, details: Unable to connect to database: ; trace: #0 /usr/local/psa/admin/plib/functions.php(2821): isPpaKeyRequired()
#1 /usr/local/psa/admin/plib/common_func.php3(11): require_once('/usr/local/psa/...')
#2 /usr/local/psa/admin/plib/api-common/cu.php(5): require_once('/usr/local/psa/...')
#3 /usr/local/psa/admin/sbin/httpdmng(8): include_once('/usr/local/psa/...')
#4 (main)
Unable to connect to database:
- My MySQL version is: 5.5.33 openSUSE package
- I did run mysql_upgrade with my admin username and password (password from: /etc/psa/.psa.shadow) and it worked successfully and fixed all of the errors, I did so after running the auto installer first, but then ran the installer again and the problem was still there
- I can access my web page, but it still doesn't connect to MySQL either.
I believe this is a problem with MySQL, but how can I make sure or detect what exactly the problem is
i have a serious problems with my shoutcast accounts the last 2 months...i create in my ports 8002,8004,8006,8008,8010,8012 some shoutcast accounts via cast control...every 3-4 hours some of my accounts is crashing....i can't understand why....so every 3 hours i am going to cast control panel to start again the shoutcast server of the account which which crashed....i don 't know what to do any more...my hands up...
i found these script which i can use via cron job to check if each shoutcast server is up
#!/bin/bash
dte=`date +%d%b%Y`
cd /where/ever/you/run/stuff/
##-->> Check to see if sc_serv is running <<--##
ps -ef|grep -v grep|grep sc_serv >sc_serv_ok
if [ -s sc_serv_ok ]
then
##-->> Everything looks good, remove the file and exit <<--##
rm -f sc_serv_ok
exit 0
else
##-->> Log the error <<--##
echo "Possible abend of sc_serv" > sc_serv_prob_log.$dte
##-->> Email the log <<--##
mail -s "sc_trans" your-email@domain-name.com <sc_serv_prob_log.$dte
##-->> Restart sc_serv <<--##
cd /path/to/shoutcast/
./sc_serv
the problem is that i can't found the conf file for each account...where exactly CAST CONTROL creates it..i have the free version of cast sontrol 1.4...
I am currently running DA on my VPS and have about 15-20 accounts on it. We are upgrading to a dedicated running plesk while we need it, but I have not found a tool or an easy way to transfer DA accounts to plesk without problems. Because of this, I feel it would be easiest to transfer the accounts to a cPanel VPS, then to plesk. I know hosts are not supposed to PM here, but if you can offer me a cPanel VPS sometime within the next week for 24-48 hours for under $5-7, that would be great. This may seem like a little amount of money, but realistically it is a good amount in comparison to the pricing for a whole month of service.
It can be OpenVZ, virtuozzo, or Xen.
Is it normal ? What can I do?
View 15 Replies View RelatedI had a 12 hours outage in one of my VPS. According to the report of my provider, a maintenance task reported an error on the fsck Linux command.
Now I wonder if this error can occur on any RAID hard disk subsystem? Should I stay with this company?
I attached new backup harddrive with system and enable increment backup so that it can generate server backup on backup harddrive which was new,
I notice it takes 20 hours upto now and still working becoz i seen some command like rsync running on top and using alot of resources of server but when i checked backup harddrive then it almost copy all data into it but what about this rsync which running on system from 3 hours and still going .?
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
28045 root 35 19 42788 38m 168 S 63.8 1.0 42:59.51 rsync
28023 root 34 19 42680 39m 552 R 26.6 1.0 23:47.98 rsync
28024 root 34 19 42528 38m 312 S 19.9 1.0 10:25.91 rsync
944 nobody 15 0 167m 142m 10m S 5.0 3.5 0:09.26 httpd
1579 nobody 15 0 167m 143m 11m S 5.0 3.5 0:09.34 httpd
2471 nobody 15 0 167m 138m 7032 S 4.0 3.4 0:01.12 httpd
1528 nobody 16 0 167m 139m 7436 S 1.7 3.4 0:10.20 httpd
76 root 15 0 0 0 0 S 1.3 0.0 14:14.62 kswapd0
2194 nobody 15 0 167m 138m 7188 S 1.3 3.4 0:03.47 httpd
2386 nobody 15 0 167m 139m 7608 S 1.3 3.4 0:03.02 httpd
2452 nobody 15 0 167m 138m 7184 S 1.3 3.4 0:02.01 httpd
3054 mysql 16 0 747m 294m 2892 S 1.0 7.3 431:01.86 mysqld
18358 root 15 0 0 0 0 S 1.0 0.0 0:27.59 pdflush
665 nobody 15 0 167m 139m 7656 S 1.0 3.4 0:18.77 httpd
1917 nobody 15 0 167m 139m 7816 S 1.0 3.4 0:08.64 httpd
Recently a drive in one of my main box's has failed.
Ive contacted my provider, however there SLA states - 4 Hours for hardware replacement.
It takes 4 hours to replace a harddrive? What are they, sloths?
Anyone else had similar experiences when attempting to get drives replaced?
I'm not a direct client of Leaseweb, but it's not a secret that my domain is pointing at their servers.
I purchased a shared hosting plan from a reseller and since more than 43 hours my domain is down! My provider (the reseller) said he's waiting for Leaseweb support... according to my informations, in more than 24 hours they just made a reboot of the server!
I'm really bored of waiting with no chance of intervention! My provider says he can't do anything from his side, i can't contact Leaseweb cause i'm not a client... please, help, what can i do?
I need my site back online!
like to clarify this is not a post to bash liquidweb.
I have been a loyal customer of LW for the past 2 years (almost)
My websites have been down since Thursday 3:00 a.m due to "DDos Attack"
on Friday night, the network engineer told me the "DDos Attack" has stopped and problem should have been resolved. However, no websites were accessible.
On Saturday, I ensure you I have made many phone calls to Liquidweb dedicated server support and try to resolve this issue. (Never once did I raise my voice and they were being very polite.)
I believe the server admins that were helping was at the end of their shifts and every time I try to make a phone call to the person that was assisting me to get an update, liquidweb would tell me that he has gone home. Every time the server admin finishes his shift, the support ticket is not assigned to anyone else that is working until I make a phone call to them stating my problem.
I own quite a few large sites that generate over 3 millions hits per day and every hour of downtime means I will be losing valuable clients and revenue. That is why I am extremely frustrated with the 63 hours downtime as it seems like the results of working hard for the past 2 years is slipping away from me as the clock keeps ticking.
I am sorry, I am just trying to share this with fellow webmasters as I really need a place to express my feeling. (None of my friends will understand online business.)
Again, I am not bashing liquidweb...I must have really bad luck myself.
I'm extremely worry about my VPS as it hosts 3 important websites to me. I can't let it down like this.
I submitted ticket, email, tried to call the number on your website but it is just an automatic answer.
So please at least let me know what happening? Your website says support 24/7 so where are you in the last 6 hours?
To start please take this in mind I have servers colo'd at FDC and have 0 problems, so i'm still all for fdc servers.
Here is my 24 hours review on my new vps server from FDC setup was quick less than 5hours after paying my invoice.
Now down to my problems. Off peak hours last night my VPS server was great 10 / 20mbits solid speed on sending data from the box today I am unable to get over 150kb/sec.
This doesn't help me since the nature of my business I need to transfer files fast between servers. The VPS speeds of 150kb/sec will be no use for my business if anything make our job harder.
These tests were taken using the internal fdc network transferring from the new vps to one of my 1gig fdc colos and other various servers I have on the FDC network.
After contacting fdc support about this speed issue they logged in and checked the speeds they did a download of the speedtest file from the fdc website around 30 - 40mbits. But they didn't test the outgoing from the server.
I received the response that I am sharing bandwidth on the node so speeds could vary so on there 100mbit unmetered vds package they are saying 150kb/sec is acceptable.
So basically after that my last response is if 150kb/sec are the speeds i can expect from a VDS then please cancel my server at the end of the billing period as the VDS will be no use to me.
So now I have been transferred to billing to cancel the vps at the end of the billing period.
So to sum it up, vps setup was fast and the vps runs great but don't expect the speeds you can get from one of there dedicated servers.
Is Nick Laws here? Someone knows where to call him or managemybox.com?
I have 3 servers with them. One of them is down for almost 16 hours now, and it has been 4 hours without notice. Tech replied saying is a harddrive crash and they will replace it, I have lost a lot of dollars because all important clients on this server are running out.
Now, can someone help me contact Nick? I sent him a message a minutes ago, but his techs are nto replying and one of my clients is really in a bad mood saying he will take legal actions against me.
Anyone can say a word? This is really bad and I dont get even a reply, just a word last night saying a few hours.
This is the ticket:
Dear Felipe,
ssh down too, will have a tech reboot and clear firewall, will take about 15 minutes
Thank you for choosing ManageMyServices, we appreciate your business!
Administrator: managedservices
Ticket Department: Sysadmin
Ticket Category: ALL
Assigned Administrator: ALL
Importance: Urgent
Company Area: ManageMyBox-Dedicated
Ticket Status: closed
Reply By felweb - 26-06-2008 01:57
Any news from your end on this ticket, or at least on the other 2?
This is taking way too long and it is affecting this a lot ....
It's been a while I'm into web hosting and I know I have to wait up to 72 hours for DNS to propagate.
I've got that weird problem since I changed host, my DNS stays the same as before, even if I migrated since over a week.
I did the ipflush thing and it did not work. It seems like my computer WON'T update the DNS on this single domain.
I've got 2 computers at home and my other computer has updated, but my other won't update.
• Located in the USA
• Linux Ubuntu 7.1/8.04 VPS
• HyperVM Control Panel
• IP Address – 32 (must be u.s ips)
• 128Meg – 256Meg Dedicated RAM (minimum)
• 100 – 150Gig Bandwidth (minimum)
Im running MySQL 5.0.32 on a Debian Etch server. I recently moved a couple sites from a Debian Sarge (with MySQL 4.1) server over, and now MySQL has become very unstable.
Every few hours mysql just hangs on a query. All the following queries are queued and never get executed. The only way to get things running again is forcefully killing and restarting the mysql process. After that things work again...for a few hours.
The logs (error and query log) show nothing exceptional. When it hangs and I do a 'show processlist;' I noticed that everytime a SELECT....IN (a,b,c) query is holding up everything. Could the 'IN ()' be the reason for mysql not completing the query and holding up the rest?
Another option might be to temp. go back to MySQL 4.1...but that is going to be a real problem on Debian Etch
anyway to auto reboot server every 6 hours?
will this effect on the server?
i'm running on CentOS 5 and whm
I thought I should share my feelings on FutureHosting even though we have only been on their server for 48 hours.
Background
---------
I started having my sites hosted back in 1990's and have had about a dozen hosts since then. (Started with Pair.net when they were like maybe 2 of the 3 hosts on the planet, LOL) 90% of the time, I have needed to find a host due to my former host being acquired or some other non-technical reason. So you could say that I tend to stick with a host for as long as possible. I have moved from shared hosting, to reseller hosting, to dedicated hosting, and now to VPS hosting. I started my VPS adventures with PowerVPS.
This was about 3 years ago if I recall. Like most here, I did a great deal of homework, read and lurked. PowerVPS was in my top 5 final list. I selected PowerVPS and was extremely happy to put the headaches of dedicated servers behind me. For two years the VPS was very stable. That changed about one year ago. I was told I was hitting resource max and asked to upgrade. Oddly, my sites' traffic was about 1/2 of what it was in the first two years. ie my VPS should have less resources needed. PowerVPS moved many of its legacy VPS users to new hardware. I don't recall they informed me, though they said they did. They did inform me that they would make a decision on the remaining legacy users in terms of billing promotions -- they never did. Downtime continued. I began to notice that their newer techs did not share the same ability of communication and skills as past/founding techs. Answers were curt and became more and more unhelpful. We have all seen this pattern before where a host starts out so well (2 or 3 guys/gals), and as it grows, they add remote staff that just don't have the same passion of the founders, or language skills. (Disclaimer: English isn't my native, so no excuse for lack of communications in business IMHO).
Thus, I began my search for a new VPS here. FutureHosting was in my top 5 along with KnownHost, SolarVPS, Jaguar. Actually, I rated them 3 or 4 in my final list. I tested all of these hosts' sales responses and went through the shopping process just before clicking 'sign-me up'. (I work in Ecommerce so I like to see that process). SolarVPS answered my questions the best. KnownHost a close second. I am sure there are a few other good VPS companies like ServInt, Lunar and HostNexus, but their prices just don't reflect the marketplace IMHO.
Due to my needs and budget though, I selected FutureHosting as they seem to offer the best balance -- competitiveness and support.
FutureHosting - 48 hours
-------------------
As my data was on PowerVPS with Plesk, selecting another provider with Plesk was important. Actually, I have always been a Plesk fan having used all the CPs (I just wish they would stop trying to offer 1,000 products and spin off a CP-only company like they were.)
FutureHosting (FH) started the migration on Saturday night. Sunday morning I notice that all sites hadn't been moved. I checked my inbox and read the many emails awaiting me. It seemed Plesk was having a hard time using its server migration tool (typical of Plesk that they introduce a feature that doesn't work 100% of the time.) FH informed me they would migrate my VPS (domains, etc) manually.
While this was going on, another tech worked on some requests I had related to SSH, root access, etc.
What I found in the last 48 hours was what I had hoped for... Techs that received my tickets, and replies that stated WHAT they were doing. I felt informed during the entire process. In some cases, CLEAR explanations were given. In some cases, SIMPLE answers were given -- where I couldn't grasp the why. The level of service was what I experienced in my first year with PowerVPS. And now, a really important point -- EVERY tech that worked on my tickets displayed the same level of competence. All too often, I have felt in the past that the level and ability of techs ranged so much. This became more apparent as of late on PowerVPS (are they contracting out support? No idea.) It was a real pleasure to deal with each tech. I think I counted 5 different names! What I REALLY appreciate was that it was obvious that each tech taking over a ticket READ the entire ticket thread. Too often when a tech takes over due to moving it a tier or shift change, I felt like I needed to explain everything from the start. Gah!! I don't have time or patience for that.
Hardware wise, I moved from (PowerVPS) AMD Opteron(tm) Processor 246 to Intel(R) Xeon(R)CPU E5420 @ 2.50GHz (Future Hosting). In the case of PowerVPS, my VPS was on an old legacy machine that a few of us unlucky ones were still on (We were asked to bump up $$ to go to the new machines, I refused.) I don't know which server is better, but thus far my sites feel much more snappy. I also notice that my former VPS used burst RAM approach vs. SLM. (See my other post http://www.webhostingtalk.com/showthread.php?t=896249). I should also state that perhaps PowerVPS uses this in their new machines. No idea.
Overall, I am paying the same amount for my new VPS, the sites are loading much faster and most importantly, the service has been top rate. I was a little worried at first because I heard such great reviews of Knownhost and SolarVPS (I am sure they are warranted), but based on the past 48-hours, I must say my selection was right for me in many ways. I'm crossing my fingers that this level of service will continue 3, 5 or more years down the road. If they do, I won't hesitate to recommend FutureHosting to the MANY developers I come into contact with. (I have sent a great deal of leads/business to every host I have been at.) I will need to revisit this thread on my anniversary to see if things continue in such a great manner.
Leaseweb supporters
My dedi server have been down over 30 hours, I have create a ticket 30 hours back and also sent many messages to you via skype since 10 hours back, No supporter get back to me. Over 30 hours, NO one. I knew there some ones in this forum is Leaseweb staff and they visited this forum a short time back,
I want to setup a crontab to delete a file every 24 hours, I am not the best in crontab so was wondering if one of you could please give me the command I should use?
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