Questions tagged [passive]

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Passive cooling options for server room in case of extended power outage

My company is moving into a large warehouse with a high roof (with large generally-open doors for trucks and forklifts) with an existing server room with a split-system airconditioner, and will be ...
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1 answer
3k views

How can I use nftables with passive FTP?

Below are rules for allowing passive FTP that are not working. /proc/sys/net/netfilter/nf_conntrack_helper is set to 1 The nf_conntrack_ftp module is loaded. What could be blocking it? Do I really ...
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Nagios receives OK passive alerts but still reports "passive check is stale"

I am doing some monitoring on Nagios using passive alerts. I am getting some strange behavior by: passive alerts are being received by Nagios but Nagios insists that the alerts are stale. Here is ...
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In Nagios is check_interval used with passive alerts?

I have a service that sends only passive alerts to a Nagios server; there are no active alerts set up in Nagios for this service. Here is one of the passive alerts: define service { use ...
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10k views

iptables nf_conntrack_ftp not working?

I've done quite a lot of research on iptables with passive FTP, but all boil down to using nf_conntrack_ftp and allowing related/established connections through. But somehow this ain't working on my ...
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596 views

FTP HAProxy not working on port 21 but 23

I have a simple HAProxy config; frontend on port 21, backend to one ftp-server. the ftp-server is in passive mode, therefore once a control connection is established the data connection is handled by ...
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326 views

how to count the no. of passive checks sent using nsca?

I have Nagios/NSCA setup for a perl custom script that runs on the nagioshost. I have it configured like: echo "myhost;myservice;1;Message"|/usr/local/nagios/libexec/send_nsca -to 10 -d ';' -c /etc/...
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PHP FTP + Passive FTP Server Behind NAT [closed]

I tried reaching out on stackoverflow and they referred me here. If you don't mind I am just copy and pasting my original question here: I'm trying to do an ftp upload between my website and a remote ...
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202 views

Passive FTP on Windows Server 2012 Using Filezilla Server Quits Working

I've got a Filezilla FTP server running on Windows Server 2012 accepting passive transfers. The problem is that intermittently, the passive ftp quits working and giving 425- Connection Refused errors. ...
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989 views

FTP Theory - Manage firewall on the client's side

scenario: 1 server ftp which works with passive mode (range of enabled and reserved ports from 5000 to 6000) 1 client ftp which tries to connect to server ftp above with passive mode. should client ...
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2 answers
2k views

Mini-SAS Connector Issue

allow me to apologize in advance, because I am horribly uneducated in this realm, yet I find myself with this problem: My company hired ProMax to setup all of our networking in our office. One of the ...
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2k views

Submit NULL values in Zabbix passive checks

Recently I configured some passive checks in Zabbix. Now, I saw that some checks failed for some periods of time, but this is not clear when looking at the chart. It seems that the value was stable ...
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6k views

Understand FTP; Active/Passive with Firewalls and NAT [closed]

I have some basic questions about FTP with firewalls and NAT, I hope someone could help me :) I split them up in different scenarios: Active FTP without NAT Setup: Server 1.2.3.4, Default ports; ...
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1 vote
1 answer
3k views

PURE-ftpd + passive mode + TLS

I have got linux (debian 7.1 wheezy ), where I run pure-ftpd, created virtual users, folder for ftp. I also install openssl, create private certificate for tls. All seems good. When user connect from ...
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3 votes
2 answers
2k views

iptables 1.4 and passive FTP on custom port

after the upgrade from debian squeeze to wheezy I've got a problem with passive FTP connection. I could narrow it to be iptables related, as I could connect via FTP w/o problems after adding my IP to ...
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2 votes
4 answers
9k views

Passive FTP on Windows Server 2008 R2 using the IIS7 FTP-Server

During the last few days I have been setting up a Windows Server 2008 R2 in a VMware. I installed the standard FTP-Server on it by using the Webserver (IIS)-role. Everything works fine with accessing ...
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-1 votes
1 answer
916 views

FTP not listing directory NcFTP PASV

I am attempting to setup Multicraft on my server, all is running smoothly however the FTP won't allow anyone to connect from a remote FTP client, where net2ftp will work smoothly from a remote ...
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Proftpd port-forwarding failing

I'm setting up proftpd on an ec2 Instance running Ubuntu 10.04 I've gone through all the forums and tried every suggestion but still can't seem to get it working. I know the problem is with the ...
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1 vote
1 answer
1k views

Why does Filezilla try to switch to passive mode on ports that are outside the range of my FTP server?

I have an OpenSuSE box running vsftp. It is behind a firewall at our hosting company. They control the firewall, I have no access to it. It has unrestricted access from our VPN via 10.x.x.x, and ...
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-3 votes
1 answer
934 views

Passive ssh/telnet server?

I want to set up a Ubuntu openssh (or telnet) server where the network environment is can connect to any other host via any tcp/udp port. but cannot accept incoming connections from other clients. no ...
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4 votes
3 answers
36k views

Passive mode for FileZilla FTP isn't working

We have FileZilla server 0.9.37 running on Windows server 2008 R2 Active mode works OK, The Windows firewall on the server is off. Our Router is a DrayTek vigor 2820. Under NAT, Open Ports, I have ...
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  • 301
1 vote
1 answer
25k views

Enabling active FTP mode in IIS on Windows Server 2008

I am trying to connect to my IIS website using Dreamweaver. When I use the Use passive FTP option, I am able to connect. However, unchecking this option results in a timeout and error. So far ...
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  • 299
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1 answer
1k views

Connect to Windows 2003 64 bits IIS FTP 6 in Passive Mode not working

I have a Windows 2003 64bit Data Center Edition, with IIS/FTP 6 installed. The FTP Site is the default site that was created when I installed IIS/FTP. I have setup FTP so that it won't allow Anonymous ...
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  • 133
2 votes
1 answer
658 views

active-to-passive ftp solution

I have an ftp client (.NET app I don't have the source to) that only does active mode that needs to push data to an appliances ftp-server that only speaks passive. There is nothing I can do to modify ...
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3 votes
4 answers
3k views

Passive ftp on Server 2008

I have a new Windows 2008 server with IIS7. When I connect to the ftp in active mode, it works fine. In passive mode, it connects, but then times out trying to get the directory listing. I tried ...
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  • 151
1 vote
2 answers
4k views

FreeBSD+PF+Passive Firewall=Frustration

I have a FreeBSD server that I'm trying to get FTP working on. If I disable pf everything works great. If I connect while pf is running I can login successfully-but as soon as I run an ls I get this: ...
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4 votes
2 answers
16k views

pure-ftpd gives wrong ip for passive connection in TLS mode

I am setting up our ftp server ( pure-ftpd-1.0.21-r1 ) to use TLS/SSL. It works when I don't use TLS. Started with command options: -S 21 -c 30 -C 10 -B -k 90% -A -R -Z -p 49152:65534 -U 013 -s --...
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  • 163
2 votes
3 answers
11k views

FTP Active/Passive not working like I expect

So I've got an interesting issue at the moment. I'm attempting to use curl (7.15.5 on CentOS) to retrieve a file from a remote FTP server. Our client changed something last weekend, because it worked ...
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